mu

Rewrite MouseKeys plugin

.clang-format

@@ -0,0 +1,47 @@
+# -*- mode: yaml -*-
+---
+BasedOnStyle: Google
+---
+Language: Cpp
+
+AlignConsecutiveAssignments: Consecutive
+## clang-format-15
+# AlignConsecutiveAssignments:
+#   Enabled: true
+#   AlignCompound: true
+#   PadOperators: true
+AlignConsecutiveDeclarations: None
+AlignConsecutiveMacros: AcrossEmptyLines
+AlignEscapedNewlines: Right
+AllowShortBlocksOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: WithoutElse
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortLoopsOnASingleLine: true
+AttributeMacros:
+  - __attribute__((weak))
+  - __attribute__((always_inline))
+  - __attribute__((noinline))
+  - __attribute__((packed))
+  - __attribute__((optimize(3)))
+  - __attribute__((unused))
+BinPackArguments: false
+BinPackParameters: false
+# BraceWrapping:
+#   SplitEmptyFunction: false
+#   SplitEmptyRecord: true
+#   SplitEmptyNamespace: true
+# BreakBeforeBraces: Custom
+ColumnLimit: 0
+ConstructorInitializerIndentWidth: 2
+ContinuationIndentWidth: 2
+DerivePointerAlignment: false
+FixNamespaceComments: true
+IndentCaseLabels: false
+KeepEmptyLinesAtTheStartOfBlocks: true
+MaxEmptyLinesToKeep: 2
+# PackConstructorInitializers: CurrentLine
+PointerAlignment: Right
+# ReferenceAlignment: Right
+ReflowComments: false
+SortIncludes: false
+SpaceAfterTemplateKeyword: false

.cpplint

@@ -0,0 +1,9 @@
+set noparent
+
+extensions=cpp,h,ino
+
+filter=-build/include
+filter=-legal/copyright
+filter=-readability/namespace
+filter=-runtime/references
+filter=-whitespace

.cpplint-noisy

@@ -0,0 +1,9 @@
+set noparent
+
+extensions=cpp,h,ino
+
+filter=-build/include
+filter=-legal/copyright
+filter=-readability/namespace
+filter=-runtime/references
+filter=-whitespace/line_length

.github/workflows/build.yml

@@ -4,51 +4,53 @@ on: [push, pull_request]
 
 env:
   LC_ALL: C
-  KALEIDOSCOPE_CCACHE: 1
   ARDUINO_DIRECTORIES_USER: ${{ github.workspace }}/.arduino/user
+  CLANG_FORMAT_CMD: clang-format-12
 jobs:
   smoke-sketches:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-
+    - name: Cache arduino dep downloads
-## We delete the Bundle's version of Kaleidoscope, and symlink ourselves in.
+      uses: actions/cache@v2
-## This makes sure we're using the current version of the library.
+      with:
-    - run: sudo apt-get install ccache
+        path: ${{ github.workspace}}/.arduino/downloads
+        key: ${{ runner.os }}-arduino-downloads
     - run: make setup
-    - run: make -j $(nproc) smoke-sketches
+    - run: KALEIDOSCOPE_TEMP_PATH=${{ github.workspace}}/.kaleidoscope-temp make -j $(nproc) smoke-sketches
   run-google-tests:
     runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v2
-#    - uses: mxschmitt/action-tmate@v3
+    - name: Cache arduino dep downloads
-    - run: sudo apt-get install ccache
+      uses: actions/cache@v2
+      with:
+        path: ${{ github.workspace}}/.arduino/downloads
+        key: ${{ runner.os }}-arduino-downloads
+    - run: sudo apt update 
+    - name: ccache
+      uses: hendrikmuhs/ccache-action@v1.2
     - run: make setup
-    - run: make -j $(nproc) simulator-tests
+    - run: KALEIDOSCOPE_CCACHE=1 make -j $(nproc) --output-sync=recurse simulator-tests
-  check-astyle:
+  check-code-style:
     runs-on: ubuntu-latest
     steps:
-    - run: sudo apt-get install astyle
     - uses: actions/checkout@v2
-    - run: make setup
+    - run: KALEIDOSCOPE_CODE_FORMATTER=clang-format-12 make check-code-style
-    - run: make check-astyle
   check-shellcheck:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - run: make setup
     - run: make shellcheck
   check-cpplint:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - run: make setup
     - run: make cpplint
   find-filename-conflicts:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - run: make setup
     - run: make find-filename-conflicts 
   publish-arduino-package-on-every-commit:
     runs-on: ubuntu-latest

.gitignore

@@ -5,6 +5,7 @@
 /output/
 /examples/*/output/
 /out/
+/docs/plugins
 /docs/generated
 /docs/doxyoutput
 /docs/api
@@ -12,3 +13,4 @@
 /results/
 generated-testcase.cpp
 .arduino
+/bin/arduino-cli

.iwyu_ignore

@@ -0,0 +1,14 @@
+examples
+src/Kaleidoscope.h
+src/Kaleidoscope-LEDControl.h
+src/kaleidoscope/HIDTables.h
+src/kaleidoscope/driver/bootloader/gd32/Base.h
+src/kaleidoscope/driver/led/Base.h
+src/kaleidoscope/driver/led/WS2812.h
+src/kaleidoscope/driver/led/ws2812/config.h
+src/kaleidoscope/driver/mcu/GD32.h
+src/kaleidoscope/driver/storage/GD32Flash.h
+plugins/Kaleidoscope-FirmwareDump/**
+plugins/Kaleidoscope-HostOS/src/kaleidoscope/plugin/HostOS.h
+plugins/Kaleidoscope-Hardware-EZ-ErgoDox/src/kaleidoscope/device/ez/ErgoDox/i2cmaster.h
+testing/googletest

.kaleidoscope-builder.conf

@@ -1,3 +0,0 @@
-# -*- mode: sh -*-
-
-DEFAULT_SKETCH=Kaleidoscope

Makefile

@@ -1,3 +1,31 @@
+# Reset a bunch of historical GNU make implicit rules that we never
+# use, but which have a disastrous impact on performance
+#
+# --no-builtin-rules in MAKEFLAGS apparently came in with GNU Make 4,
+# which is newer than what Apple ships
+MAKEFLAGS += --no-builtin-rules
+
+# These lines reset the implicit rules we really care about
+%:: %,v
+
+%:: RCS/%,v
+
+%:: RCS/%
+
+%:: s.%
+
+%:: SCCS/s.%
+
+.SUFFIXES:
+
+# GNU Make earlier than 4.0 don't have the output-sync option, but we need it
+# to make parallel simulator test output readable. (otherwise it gets interleaved)
+ifeq ($(shell test $(firstword $(subst ., ,$(MAKE_VERSION))) -ge 4; echo $$?),0)
+MAKEFLAGS+=--output-sync=target
+else
+_using_old_make=1
+endif
+
 include $(dir $(abspath $(lastword $(MAKEFILE_LIST))))/etc/makefiles/arduino-cli.mk
 
 # Set up an argument for passing to the simulator tests in docker
@@ -8,113 +36,134 @@ ifneq ($(TEST_PATH),)
 TEST_PATH_ARG="TEST_PATH='$(TEST_PATH)'"
 endif
 
+.DEFAULT_GOAL := smoke-sketches
 
-DEFAULT_GOAL: smoke-sketches
+.PHONY: setup
-
+setup: $(ARDUINO_CLI_PATH) $(ARDUINO_DIRECTORIES_DATA)/arduino-cli.yaml install-arduino-core-avr install-arduino-core-kaleidoscope checkout-platform prepare-virtual
-PLUGIN_TEST_SUPPORT_DIR ?= $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/build-tools/
-PLUGIN_TEST_BIN_DIR ?= $(PLUGIN_TEST_SUPPORT_DIR)/../toolchain/$(shell gcc --print-multiarch)/bin
-
-setup: $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/boards.txt $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/virtual/boards.txt $(ARDUINO_CLI_PATH) configure-arduino-cli install-arduino-core-avr
 	@:
 
-
+.PHONY: checkout-platform
 checkout-platform: $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/boards.txt
 	@:
 
+$(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/boards.txt:
+	git clone -c core.symlinks=true \
+		--recurse-submodules \
+		--shallow-submodules \
+		--recurse-submodules=':(exclude)avr/bootloaders' \
+		--recurse-submodules=':(exclude)avr/libraries/Kaleidoscope' \
+		https://github.com/keyboardio/Kaleidoscope-Bundle-Keyboardio \
+		$(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio
+	git clone -c core.symlinks=true \
+		--recurse-submodules \
+		--shallow-submodules \
+		--recurse-submodules=':(exclude)libraries/Kaleidoscope' \
+		https://github.com/keyboardio/ArduinoCore-GD32-Keyboardio $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/gd32
+
+.PHONY: prepare-virtual
 prepare-virtual: $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/virtual/boards.txt
 	@:
 
 $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/virtual/boards.txt:
 	$(MAKE) -C $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio prepare-virtual
 
-
+.PHONY: update
-$(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/boards.txt:
+update:
-	git clone -c core.symlinks=true --recurse-submodules=":(exclude)avr/libraries/Kaleidoscope" --recurse-submodules=build-tools --recurse-submodules=toolchain --recurse-submodules=avr/libraries/ git://github.com/keyboardio/Kaleidoscope-Bundle-Keyboardio $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio
+	cd $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio; git pull; \
-	rm -d $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/libraries/Kaleidoscope
+		git submodule update --init --recursive
-	ln -s $(KALEIDOSCOPE_DIR) $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/libraries/Kaleidoscope
+	cd $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/gd32; git pull; \
-
+		git submodule update --init --recursive
-simulator-tests: configure-arduino-cli $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/virtual/boards.txt 
+
+.PHONY: simulator-tests
+simulator-tests:
+ifneq ($(_using_old_make),)
+	$(info You're using an older version of GNU Make that doesn't offer the --output-sync option. If you're running the test suite in parallel, output may be garbled. You might consider using GNU Make 4.0 or later instead)
+endif
 	$(MAKE) -C tests all
 
+.PHONY: docker-simulator-tests
 docker-simulator-tests:
 	ARDUINO_DIRECTORIES_USER="$(ARDUINO_DIRECTORIES_USER)" ./bin/run-docker "make simulator-tests $(TEST_PATH_ARG)"
 
+.PHONY: docker-clean
 docker-clean:
-	ARDUINO_DIRECTORIES_USER="$(ARDUINO_DIRECTORIES_USER)" ./bin/run-docker "make clean"
+	_NO_SYNC_KALEIDOSCOPE=1 ARDUINO_DIRECTORIES_USER="$(ARDUINO_DIRECTORIES_USER)" ./bin/run-docker "rm -rf -- testing/googletest/build/* _build/* /kaleidoscope-persist/temp/*"
 
+.PHONY: docker-bash
 docker-bash:
-	ARDUINO_DIRECTORIES_USER="$(ARDUINO_DIRECTORIES_USER)" ./bin/run-docker "bash"
+	_NO_SYNC_KALEIDOSCOPE=1 DOCKER_LIVE_KALEIDOSCOPE_DIR=1 ARDUINO_DIRECTORIES_USER="$(ARDUINO_DIRECTORIES_USER)" ./bin/run-docker "bash"
-
-run-tests: $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/virtual/boards.txt build-gtest-gmock
-	$(MAKE) -c tests
-	@: # blah
 
 build-gtest-gmock:
-	(cd testing/googletest && cmake .)
+	(cd testing/googletest && cmake -H. -Bbuild -DCMAKE_C_COMPILER=$(call _arduino_prop,compiler.path)$(call _arduino_prop,compiler.c.cmd) -DCMAKE_CXX_COMPILER=$(call _arduino_prop,compiler.path)$(call _arduino_prop,compiler.cpp.cmd)  .)
 	$(MAKE) -C testing/googletest
 
-adjust-git-timestamps:
+.PHONY: find-filename-conflicts
-	bin/set-timestamps-from-git
-
 find-filename-conflicts:
-	@if [ -d "bin" ]; then \
+	bin/find-filename-conflicts.py src plugins/*
-		bin/find-filename-conflicts; \
+
-	fi
+.PHONY: format
-
+format:
-.PHONY: astyle test cpplint cpplint-noisy shellcheck smoke-examples find-filename-conflicts prepare-virtual checkout-platform adjust-git-timestamps docker-bash docker-simulator-tests run-tests simulator-tests setup
+	bin/format-code.py \
-
+		--exclude-dir 'testing/googletest' \
-astyle:
+		--exclude-file 'generated-testcase.cpp' \
-	find ./* -type f \( -name  '*.h' -o -name '*.cpp' -o -name '*.ino' \) | grep -v "testing/googletest" | xargs -n 1 astyle --project
+		src plugins examples testing
-
+
-check-astyle: astyle
+.PHONY: check-code-style
-	if ! git diff --exit-code; then \
+check-code-style:
-  	 >&2 echo "'astyle' found code style differences. Please make astyle and commit your changes"; \
+	bin/format-code.py \
-	 exit 1; \
+		--exclude-dir 'testing/googletest' \
-	fi; \
+		--exclude-file 'generated-testcase.cpp' \
-	exit 0;
+		--check \
-
+		--verbose \
+		src plugins examples testing
+
+.PHONY: check-includes
+check-includes:
+	bin/fix-header-includes
+
+.PHONY: check-all-includes
+check-all-includes:
+	bin/iwyu.py -v src plugins
+	bin/iwyu.py -v \
+		-I=$(KALEIDOSCOPE_DIR) \
+		-I=$(KALEIDOSCOPE_DIR)/testing/googletest/googlemock/include \
+		-I=$(KALEIDOSCOPE_DIR)/testing/googletest/googletest/include \
+		testing
+	bin/format-code.py -f -v --check \
+		--exclude-dir 'testing/googletest' \
+		src plugins testing
+
+.PHONY: cpplint-noisy
 cpplint-noisy:
-	-bin/cpplint.py  --filter=-legal/copyright,-build/include,-readability/namespace,-whitespace/line_length,-runtime/references  --recursive --extensions=cpp,h,ino src examples
+	-bin/cpplint.py --config=.cpplint-noisy --recursive src plugins examples
-
 
+.PHONY: cpplint
 cpplint:
-	bin/cpplint.py  --quiet --filter=-whitespace,-legal/copyright,-build/include,-readability/namespace,-runtime/references  --recursive --extensions=cpp,h,ino src examples
+	bin/cpplint.py --config=.cpplint --quiet --recursive src plugins examples
-
-
-SHELL_FILES = $(shell if [ -d bin ]; then egrep -n -r -l "(env (ba)?sh)|(/bin/(ba)?sh)" bin; fi)
 
+.PHONY: shellcheck
 shellcheck:
-	@if [ -d "bin" ]; then \
+	bin/check-shell-scripts.sh
-		shellcheck ${SHELL_FILES}; \
-	fi
-
 
-check-docs:
+SMOKE_SKETCHES := $(sort $(shell if [ -d ./examples ]; then find ./examples -type f -name \*ino | xargs -n 1 dirname; fi))
-	doxygen $(PLUGIN_TEST_SUPPORT_DIR)/quality/etc/check-docs.conf 2> /dev/null >/dev/null
-	python $(PLUGIN_TEST_SUPPORT_DIR)/quality/doxy-coverage.py /tmp/undocced/xml
-
-
-SMOKE_SKETCHES=$(sort $(shell if [ -d ./examples ]; then find ./examples -type f -name \*ino | xargs -n 1 dirname; fi))
 
 smoke-sketches: $(SMOKE_SKETCHES)
 	@echo "Smoke-tested all the sketches"
 
-.PHONY: force all clean test
+.PHONY: force
+$(SMOKE_SKETCHES): force
+	$(MAKE) -C $@ -f $(KALEIDOSCOPE_ETC_DIR)/makefiles/sketch.mk compile
 
+.PHONY: clean
 clean: 
 	$(MAKE) -C tests clean
 	rm -rf -- "testing/googletest/build/*"
 	rm -rf -- "_build/*"
 
-
-$(SMOKE_SKETCHES): force
-	$(MAKE) -C $@ -f $(KALEIDOSCOPE_ETC_DIR)/makefiles/sketch.mk compile
-
-
 build-arduino-nightly-package:
 	perl bin/build-arduino-package \
 		--kaleidoscope-tag=master \
-		--version `date +%Y.%m.%d%H%M%S` \
+		--version `date +%Y.%-m.%-d%H%M%S` \
 		--index-filename-slug=kaleidoscope_master \
 		--only-one-platform-revision \
 		--push \

README.md

@@ -5,7 +5,7 @@ Flexible firmware for Arduino-powered keyboards.
 
 This package contains the "core" of Kaleidoscope and a number of [example firmware "Sketches"](https://github.com/keyboardio/Kaleidoscope/tree/master/examples).
 
-If you're just getting started with the Keyboardio Model 01, the [introductory docs are here](https://github.com/keyboardio/Kaleidoscope/wiki/Keyboardio-Model-01-Introduction) and the source for the basic firmware package is here: https://github.com/keyboardio/Model01-Firmware. It's probably a good idea to start there, learn how to modify your keymap and maybe turn some modules on or off, and then come back to the full repository when you have more complex changes in mind.
+If you're just getting started with the Keyboardio Model 01, the [introductory docs are here](https://github.com/keyboardio/Kaleidoscope/wiki/Keyboardio-Model-01-Introduction) and the source for the basic firmware package is here: https://github.com/keyboardio/Model01-Firmware. It's probably a good idea to start there, learn how to modify your keymap and maybe turn some modules on or off, and then come back to the full repository when you have more complex changes in mind. (The firmware for all other devices is inside examples/Devices in this Kaleidoscope repo.)
 
 # Getting Started
 

bin/build-arduino-package

@@ -7,153 +7,290 @@
 ###################
 ###################
 
-my $executed_as = join(' ', @ARGV);
+my $executed_as = join( ' ', @ARGV );
 
 use warnings;
 use strict;
 use File::Temp qw/tempdir/;
 use Cwd qw/abs_path cwd/;
 use JSON::PP;
-      use Getopt::Long;
+use Getopt::Long;
 
-my $sha256 = 0;
+my @ARCHES = 	(qw(avr gd32));
-my $size   = 0;
 
+my $platforms_template = {
+    avr => {
+        'toolsDependencies' => [
+            {
+                "packager" => "arduino",
+                "name"     => "avr-gcc",
+                "version"  => "7.3.0-atmel3.6.1-arduino7"
+            },
+            {
+                "packager" => "arduino",
+                "name"     => "avrdude",
+                "version"  => "6.3.0-arduino17"
+            }
+        ],
+        'name'   => "Kaleidoscope keyboards",
+        'boards' => [
+            { 'name' => 'Keyboardio Model 01' },
+            { 'name' => 'Keyboardio Atreus' }
+        ],
+        'architecture' => 'avr',
+        'category'     => 'Contributed',
+        'help'         => {
+            'online' => 'https://community.keyboard.io'
+        }
+    },
+    gd32 => {
+        'name'              => "Kaleidoscope keyboards (GD32)",
+        'architecture'      => 'gd32',
+        'toolsDependencies' => [
+            {
+                'name'     => 'xpack-arm-none-eabi-gcc',
+                'packager' => 'keyboardio',
+                'version'  => '9.3.1-1.3'
+            },
+            {
+                'packager' => 'keyboardio',
+                'version'  => '0.11.0-1',
+                'name'     => 'xpack-openocd'
+            },
+            {
+                'name'     => 'dfu-util',
+                'version'  => '0.10.0-arduino1',
+                'packager' => 'keyboardio'
+            }
+        ],
+        'version' => '0.0.1',
+        'name'    => 'Kaleidoscope Keyboards (GD32)',
+        'boards'  => [
+            {
+                'name' => 'Keyboardio Model 100'
+            }
+        ],
+        'category' => 'Contributed',
+        'help'     => {
+            'online' => 'https://community.keyboard.io'
+        }
+    }
+};
 my $version             = '';
 my $tag                 = 'master';
+my $gd32_tag	= 'main';
 my $kaleidoscope_tag    = 'master';
-my $temp_dir         = tempdir( CLEANUP => 0 );
+my $working_dir         = tempdir( CLEANUP => 0 );
-my $index_filename_slug  ='keyboardio';
+my $index_filename_slug = 'keyboardio';
+my $output_dir          = $working_dir . '/boards_manager_repo';
+my $builds_dir          = $output_dir . '/builds';
 
 my $only_latest_platform = 0;
 
 my $bundle_repo = 'https://github.com/keyboardio/Kaleidoscope-Bundle-Keyboardio';
-my $boards_repo = 'https://github.com/keyboardio/boardsmanager';
+my $gd32_core_repo = 'https://github.com/keyboardio/ArduinoCore-GD32-Keyboardio';
-my $push_package_repo = 0;
+my $package_repo       = 'https://github.com/keyboardio/boardsmanager';
-
 
+my $push_package_repo = 0;
 
-      GetOptions ("bundle-tag=s" => \$tag,
+GetOptions(
+    "bundle-tag=s"               => \$tag,
+    "arch-gd32-tag=s"               => \$gd32_tag,
     "kaleidoscope-tag=s"         => \$kaleidoscope_tag,
     "bundle-repo=s"              => \$bundle_repo,
-		  "output-repo=s" => \$boards_repo,
+    "output-repo=s"              => \$package_repo,
     "index-filename-slug=s"      => \$index_filename_slug,
     "version=s"                  => \$version,
     "only-one-platform-revision" => \$only_latest_platform,
-		  "push" => \$push_package_repo)
+    "push"                       => \$push_package_repo
-      or die("Error in command line arguments\n");
+) or die("Error in command line arguments\n");
 
-my $index_filename = 'package_'.$index_filename_slug.'_index.json';
+my $index_filename = 'package_' . $index_filename_slug . '_index.json';
+
+my $main_branch_name = 'main';
 
 if ( $version eq '' && $tag =~ /^v(\d.*)$/ ) {
     $version = $1;
 }
 
-my $checkout_dir     = "Kaleidoscope-$tag-$version";
+my $checkout_dir = 'kaleidoscope-checkout';
-my $filename         = $checkout_dir . ".tar.bz2";
 
-my $build_base_url = $boards_repo."/master/builds/";
+my $build_base_url = $package_repo . "/raw/$main_branch_name/builds";
-$build_base_url =~ s|ssh://git\@github.com|https://raw.githubusercontent.com|;
+$build_base_url =~ s|ssh://git@|https://|;
 
-my @bundle_dirs_to_remove = qw|toolchain etc doc avr/build-tools avr/bootloaders/*/lufa avr/libraries/Kaleidoscope/testing avr/libraries/Kaleidoscope/tests avr/libraries/Kaleidoscope/docs|;
+print "Working directory: $working_dir\n";
+chdir($working_dir);
 
-chdir($temp_dir);
+clone_repos( $tag, $gd32_tag, $bundle_repo, $gd32_core_repo, $checkout_dir, $package_repo );
 
-`git clone --depth=1 --quiet --recurse-submodules --branch $tag $bundle_repo $checkout_dir`;
+chdir( $working_dir . "/" . $checkout_dir );
-`git clone $boards_repo boardsmanager`;
+if ($only_latest_platform) {
+    `rm -rf $builds_dir/*`;
+}
 
+foreach my $arch (@ARCHES) {
+
+    remove_unneeded_files($arch);
+
+    # Get the specified Kaleidoscope build and all its plugins as libraries
+    # into the checkout
+    chdir("$working_dir/$checkout_dir/$arch/libraries/Kaleidoscope");
+    checkout_kaleidoscope($kaleidoscope_tag);
+
+    lift_plugins_to_arduino_libs();
+    set_plugin_versions( $working_dir, $checkout_dir, $arch, $version );
+
+    chdir($working_dir);
+
+    my $release_dir = "Kaleidoscope-$arch-$version";
+    my $filename    = $release_dir . ".tar.bz2";
+
+    build_archive( $arch, $checkout_dir, $release_dir, $filename );
+    deploy_build( $builds_dir, $filename );
 
-chdir($checkout_dir);
-foreach my $dir_to_remove (@bundle_dirs_to_remove) {
-    `rm -rf $dir_to_remove`;
 }
 
-chdir("avr/libraries/Kaleidoscope");
+update_index_file( $output_dir, $index_filename );
-`git checkout --quiet $kaleidoscope_tag`;
+chdir("$output_dir");
+commit_results($index_filename);
+finalize_action($push_package_repo);
 
-if ( -d 'plugins') { 
+exit 0;
-chdir("plugins");
+
-# move the plugins to where they should live
+sub set_plugin_versions {
-`mv * ../../`;
+    my $working_dir  = shift;
+    my $checkout_dir = shift;
+    my $arch         = shift;
+    my $version      = shift;
+    chdir("$working_dir/$checkout_dir/$arch/libraries");
+    `perl -pi -e's/version=0.0.0/version=$version/' */library.properties`;
 }
 
-set_plugin_versions();
+sub clone_repos {
+    my $tag          = shift;
+    my $gd32_tag = shift;
+    my $bundle_repo  = shift;
+    my $gd32_repo = shift;
+    my $checkout_dir = shift;
+    my $package_repo  = shift;
+`git clone --depth=1 --quiet --recurse-submodules --branch $tag $bundle_repo $checkout_dir`;
 
+`git clone --depth=1 --quiet --recurse-submodules --branch $gd32_tag $gd32_repo $checkout_dir/gd32`;
+    `git clone $package_repo $output_dir`;
+}
 
-chdir($temp_dir);
+sub checkout_kaleidoscope {
-`mv $checkout_dir/avr $checkout_dir/$checkout_dir`
+    my $tag = shift;
-  ;    # A hack to get consistent naming with the old setup
+    `git checkout --quiet $tag`;
-`find $checkout_dir -name .git |xargs rm -rf`;
+}
-`tar cjvf $filename -C $checkout_dir/ $checkout_dir `;
 
-$sha256 = `sha256sum $filename | cut -d' ' -f 1 `;
+sub lift_plugins_to_arduino_libs {
-chomp($sha256);
+    if ( -d 'plugins' ) {
-die "There was a problem generating the sha256" unless ($sha256);
+        chdir("plugins");
 
-$size = -s $filename;
+        # move the plugins to be fullfledged arduino libraries
-`mkdir -p boardsmanager/builds`;
+        `mv * ../../`;
-if ($only_latest_platform) {
+    }
-`rm -rf boardsmanager/builds/*`;
 }
-`cp $filename boardsmanager/builds/`;
 
-my $platform_template = {
+sub update_index_file {
-    'archiveFileName'   => $filename,
+    my $output_dir     = shift;
-    'toolsDependencies' => [
+    my $index_filename = shift;
-        {
+
-            "packager" => "arduino",
+    my $json = JSON::PP->new->allow_nonref;
-            "name"     => "avr-gcc",
+    local $/;
-            "version"  => "7.3.0-atmel3.6.1-arduino7"
+
-        },
+    my $index_path = $output_dir . '/' . $index_filename;
-        {
+
-            "packager" => "arduino",
+    open( my $fh, '<', $index_path ) || die "Could not open $index_path $!";
-            "name"     => "avrdude",
+    my $json_text = <$fh>;
-            "version"  => "6.3.0-arduino17"
+    my $data      = decode_json($json_text);
+
+    #my $this_packager = $data->{'packages'}->[0]->{'name'};
+    #foreach my $tool (@{$platforms_template->{'gd32'}->{'toolsDependencies'}}) {
+    #		# we need to set the packager of these tools to ourself, since that's what arduino expects
+    #	    $tool->{"packager"} = $this_packager;
+    #	}
+
+    if ($only_latest_platform) {
+        @{ $data->{'packages'}->[0]->{'platforms'} } =
+          ( $platforms_template->{'avr'}, $platforms_template->{'gd32'} );
     }
-    ],
+    else {
-    'url'      => $build_base_url . '/' . $filename,
+        push @{ $data->{'packages'}->[0]->{'platforms'} },
-    'name'     => "Kaleidoscope keyboards - nightly builds",
+          $platforms_template->{'avr'},
-    'version'  => $version,
+          $platforms_template->{'gd32'};
-    'checksum' => 'SHA-256:' . $sha256,
-    'size'     => $size,
-    'boards'   => [
-        { 'name' => 'Keyboardio Model 01' }, { 'name' => 'Keyboardio Atreus' }
-    ],
-    'architecture' => 'avr',
-    'category'     => 'Contributed',
-    'help'         => {
-        'online' => 'https://community.keyboard.io'
     }
-};
+    my $json_out = $json->canonical->pretty->encode($data);
+    open( my $out_fh, '>', $index_path );
+    print $out_fh $json_out;
+    close($out_fh);
+}
 
-my $json = JSON::PP->new->allow_nonref;
+sub commit_results {
-local $/;
+    my $index_filename = shift;
-open( my $fh, '<', 'boardsmanager/'.$index_filename) || die "Could not open boardsmanager/$index_filename $!";
+    `git add $index_filename`;
-my $json_text = <$fh>;
+    `git add builds`;
-my $data      = decode_json($json_text);
+    `git commit -a -m 'Built by $executed_as'`;
-if ($only_latest_platform) {
+}
-@{ $data->{'packages'}->[0]->{'platforms'} } = ( $platform_template);
+
-} else {
+sub remove_unneeded_files {
-push @{ $data->{'packages'}->[0]->{'platforms'} }, $platform_template;
+    my $arch = shift;
+
+    my @bundle_dirs_to_remove = (
+        "etc",
+        "doc",
+        $arch . '/bootloaders/*/lufa',
+        "$arch/libraries/Kaleidoscope/testing",
+        "$arch/libraries/Kaleidoscope/tests",
+        "$arch/libraries/Kaleidoscope/docs"
+    );
+
+    foreach my $dir_to_remove (@bundle_dirs_to_remove) {
+        print "rm -rf $dir_to_remove\n";
+        `rm -rf $dir_to_remove`;
+    }
 }
-my $json_out = $json->canonical->pretty->encode($data);
-open( my $out_fh, '>',  'boardsmanager/'.$index_filename);
-print $out_fh $json_out;
-close($out_fh);
-chdir('boardsmanager');
-`git add $index_filename`;
-`git add builds`;
-`git commit -a -m 'Built by $executed_as'`;
-if ($push_package_repo) {
-	`git push`;
-} else {
 
-print
+sub deploy_build {
-"Now, you need to cd to $temp_dir/boardsmanager check the content and push it\n";
+    my $builds_dir = shift;
+    my $filename   = shift;
+    `mkdir -p $builds_dir`;
+    `cp $filename $builds_dir/`;
 }
 
+sub build_archive {
+    my $arch         = shift;
+    my $checkout_dir = shift;
+    my $release_dir  = shift;
+    my $filename     = shift;
+
+    `mv $checkout_dir/$arch $checkout_dir/$release_dir`;
+    ;    # A hack to get consistent naming with the old setup
+    `find "$checkout_dir/$release_dir" -name .git |xargs rm -rf`;
+    `tar cjvf $filename -C $checkout_dir/ $release_dir `;
+
+    my $sha256 = `sha256sum $filename | cut -d' ' -f 1 `;
+    chomp($sha256);
+    die "There was a problem generating the sha256" unless ($sha256);
+    my $size = -s $filename;
+
+    $platforms_template->{$arch}->{'archiveFileName'} = $filename;
+    $platforms_template->{$arch}->{'url'} = $build_base_url . '/' . $filename;
+    $platforms_template->{$arch}->{'version'}  = $version;
+    $platforms_template->{$arch}->{'checksum'} = 'SHA-256:' . $sha256;
+    $platforms_template->{$arch}->{'size'}     = $size;
+
+}
+
+sub finalize_action {
+    my $do_push = shift;
+
+    if ($do_push) {
+        `git push`;
+    }
+    else {
+        print "Now, you need to cd to $output_dir check the content and push it\n";
+    }
 
-sub set_plugin_versions {
-	chdir("$temp_dir/$checkout_dir/avr/libraries");
-	`perl -pi -e's/version=0.0.0/version=$version/' */library.properties`
 }

bin/check-shell-scripts.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+: "${KALEIDOSCOPE_DIR:=$(pwd)}"
+cd "${KALEIDOSCOPE_DIR}" || exit 1
+
+ERROR_COUNT=0
+
+while read -r SCRIPT; do
+    shellcheck "${SCRIPT}"
+    (( ERROR_COUNT += $? ))
+done < <(grep -E -n -r -l '(env (ba)?sh)|(/bin/(ba)?sh)' "${KALEIDOSCOPE_DIR}/bin")
+
+exit $ERROR_COUNT

bin/common.py

@@ -0,0 +1,110 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------------
+# Copyright (c) 2022 Michael Richters <gedankenexperimenter@gmail.com>
+
+# This is free and unencumbered software released into the public domain.
+
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+# For more information, please refer to <http://unlicense.org/>
+# ------------------------------------------------------------------------------
+"""Utilities shared by Kaleidoscope code maintenance tools."""
+
+import logging
+import os
+import subprocess
+import sys
+
+from contextlib import contextmanager
+
+
+# ==============================================================================
+@contextmanager
+def cwd(temp_wd):
+    """Execute code in a different working directory
+    
+    Parameters:
+        `temp_wd` (`str`): The name of a directory to (temporarily) change to
+
+    Change the current working directory, then automatically restore the previous working
+    directory when done.  Invoke `cwd()` like this:
+    ```py
+    with cwd(temp_wd):
+        ...
+    ```
+    """
+    old_wd = os.getcwd()
+    os.chdir(temp_wd)
+    try:
+        yield
+    finally:
+        os.chdir(old_wd)
+
+
+# ==============================================================================
+def split_on_newlines(string):
+    """Split the string using newlines as the separator."""
+    return string.splitlines()
+
+
+# ------------------------------------------------------------------------------
+def split_on_nulls(string):
+    """Split the input string using NULL characters as the separator."""
+    targets = [_ for _ in string.split('\0') if _ != '']
+    return targets or []
+
+
+# ==============================================================================
+def setup_logging(loglevel):
+    """Set up basic logging."""
+    logformat = "%(message)s"
+    logging.basicConfig(
+        level=loglevel,
+        stream=sys.stdout,
+        format=logformat,
+        datefmt="",
+    )
+    return logging.getLogger()
+
+
+# ==============================================================================
+def check_git_diff():
+    """Check for unstaged changes with `git diff`
+
+    Returns: a list of the names of files with unstaged changes
+
+    This check isn't perfect, because it can give false positives (if there are unrelated
+    unstaged changes).
+    """
+    git_diff_cmd = ['git', 'diff', '-z', '--exit-code', '--name-only']
+
+    changed_files = []
+    proc = subprocess.run(git_diff_cmd, capture_output=True)
+    if proc.returncode != 0:
+        changed_files = split_on_nulls(proc.stdout.decode('utf-8'))
+    return changed_files
+
+
+# ==============================================================================
+if __name__ == "__main__":
+    sys.exit(1)

bin/cpplint.py

@@ -41,6 +41,11 @@ We do a small hack, which is to ignore //'s with "'s after them on the
 same line, but it is far from perfect (in either direction).
 """
 
+# cpplint predates fstrings
+# pylint: disable=consider-using-f-string
+
+# pylint: disable=invalid-name
+
 import codecs
 import copy
 import getopt
@@ -59,7 +64,7 @@ import xml.etree.ElementTree
 # if empty, use defaults
 _valid_extensions = set([])
 
-__VERSION__ = '1.4.4'
+__VERSION__ = '1.6.0'
 
 try:
   xrange          # Python 2
@@ -69,7 +74,7 @@ except NameError:
 
 
 _USAGE = """
-Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit]
+Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit|sed|gsed]
                    [--filter=-x,+y,...]
                    [--counting=total|toplevel|detailed] [--root=subdir]
                    [--repository=path]
@@ -77,6 +82,8 @@ Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit]
                    [--recursive]
                    [--exclude=path]
                    [--extensions=hpp,cpp,...]
+                   [--includeorder=default|standardcfirst]
+                   [--config=filename]
                    [--quiet]
                    [--version]
         <file> [file] ...
@@ -102,11 +109,16 @@ Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit]
 
   Flags:
 
-    output=emacs|eclipse|vs7|junit
+    output=emacs|eclipse|vs7|junit|sed|gsed
       By default, the output is formatted to ease emacs parsing.  Visual Studio
       compatible output (vs7) may also be used.  Further support exists for
       eclipse (eclipse), and JUnit (junit). XML parsers such as those used
-      in Jenkins and Bamboo may also be used.  Other formats are unsupported.
+      in Jenkins and Bamboo may also be used.
+      The sed format outputs sed commands that should fix some of the errors.
+      Note that this requires gnu sed. If that is installed as gsed on your
+      system (common e.g. on macOS with homebrew) you can use the gsed output
+      format. Sed commands are written to stdout, not stderr, so you should be
+      able to pipe output straight to a shell to run the fixes.
 
     verbose=#
       Specify a number 0-5 to restrict errors to certain verbosity levels.
@@ -121,11 +133,11 @@ Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit]
       error messages whose category names pass the filters will be printed.
       (Category names are printed with the message and look like
       "[whitespace/indent]".)  Filters are evaluated left to right.
-      "-FOO" and "FOO" means "do not print categories that start with FOO".
+      "-FOO" means "do not print categories that start with FOO".
       "+FOO" means "do print categories that start with FOO".
 
       Examples: --filter=-whitespace,+whitespace/braces
-                --filter=whitespace,runtime/printf,+runtime/printf_format
+                --filter=-whitespace,-runtime/printf,+runtime/printf_format
                 --filter=-,+build/include_what_you_use
 
       To see a list of all the categories used in cpplint, pass no arg:
@@ -209,6 +221,18 @@ Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit]
       Examples:
         --extensions=%s
 
+    includeorder=default|standardcfirst
+      For the build/include_order rule, the default is to blindly assume angle
+      bracket includes with file extension are c-system-headers (default),
+      even knowing this will have false classifications.
+      The default is established at google.
+      standardcfirst means to instead use an allow-list of known c headers and
+      treat all others as separate group of "other system headers". The C headers
+      included are those of the C-standard lib and closely related ones.
+
+    config=filename
+      Search for config files with the specified name instead of CPPLINT.cfg
+
     headers=x,y,...
       The header extensions that cpplint will treat as .h in checks. Values are
       automatically added to --extensions list.
@@ -282,6 +306,7 @@ _ERROR_CATEGORIES = [
     'build/include_alpha',
     'build/include_order',
     'build/include_what_you_use',
+    'build/namespaces_headers',
     'build/namespaces_literals',
     'build/namespaces',
     'build/printf_format',
@@ -338,6 +363,13 @@ _ERROR_CATEGORIES = [
     'whitespace/todo',
     ]
 
+# keywords to use with --outputs which generate stdout for machine processing
+_MACHINE_OUTPUTS = [
+  'junit',
+  'sed',
+  'gsed'
+]
+
 # These error categories are no longer enforced by cpplint, but for backwards-
 # compatibility they may still appear in NOLINT comments.
 _LEGACY_ERROR_CATEGORIES = [
@@ -514,6 +546,186 @@ _CPP_HEADERS = frozenset([
     'cwctype',
     ])
 
+# C headers
+_C_HEADERS = frozenset([
+    # System C headers
+    'assert.h',
+    'complex.h',
+    'ctype.h',
+    'errno.h',
+    'fenv.h',
+    'float.h',
+    'inttypes.h',
+    'iso646.h',
+    'limits.h',
+    'locale.h',
+    'math.h',
+    'setjmp.h',
+    'signal.h',
+    'stdalign.h',
+    'stdarg.h',
+    'stdatomic.h',
+    'stdbool.h',
+    'stddef.h',
+    'stdint.h',
+    'stdio.h',
+    'stdlib.h',
+    'stdnoreturn.h',
+    'string.h',
+    'tgmath.h',
+    'threads.h',
+    'time.h',
+    'uchar.h',
+    'wchar.h',
+    'wctype.h',
+    # additional POSIX C headers
+    'aio.h',
+    'arpa/inet.h',
+    'cpio.h',
+    'dirent.h',
+    'dlfcn.h',
+    'fcntl.h',
+    'fmtmsg.h',
+    'fnmatch.h',
+    'ftw.h',
+    'glob.h',
+    'grp.h',
+    'iconv.h',
+    'langinfo.h',
+    'libgen.h',
+    'monetary.h',
+    'mqueue.h',
+    'ndbm.h',
+    'net/if.h',
+    'netdb.h',
+    'netinet/in.h',
+    'netinet/tcp.h',
+    'nl_types.h',
+    'poll.h',
+    'pthread.h',
+    'pwd.h',
+    'regex.h',
+    'sched.h',
+    'search.h',
+    'semaphore.h',
+    'setjmp.h',
+    'signal.h',
+    'spawn.h',
+    'strings.h',
+    'stropts.h',
+    'syslog.h',
+    'tar.h',
+    'termios.h',
+    'trace.h',
+    'ulimit.h',
+    'unistd.h',
+    'utime.h',
+    'utmpx.h',
+    'wordexp.h',
+    # additional GNUlib headers
+    'a.out.h',
+    'aliases.h',
+    'alloca.h',
+    'ar.h',
+    'argp.h',
+    'argz.h',
+    'byteswap.h',
+    'crypt.h',
+    'endian.h',
+    'envz.h',
+    'err.h',
+    'error.h',
+    'execinfo.h',
+    'fpu_control.h',
+    'fstab.h',
+    'fts.h',
+    'getopt.h',
+    'gshadow.h',
+    'ieee754.h',
+    'ifaddrs.h',
+    'libintl.h',
+    'mcheck.h',
+    'mntent.h',
+    'obstack.h',
+    'paths.h',
+    'printf.h',
+    'pty.h',
+    'resolv.h',
+    'shadow.h',
+    'sysexits.h',
+    'ttyent.h',
+    # Additional linux glibc headers
+    'dlfcn.h',
+    'elf.h',
+    'features.h',
+    'gconv.h',
+    'gnu-versions.h',
+    'lastlog.h',
+    'libio.h',
+    'link.h',
+    'malloc.h',
+    'memory.h',
+    'netash/ash.h',
+    'netatalk/at.h',
+    'netax25/ax25.h',
+    'neteconet/ec.h',
+    'netipx/ipx.h',
+    'netiucv/iucv.h',
+    'netpacket/packet.h',
+    'netrom/netrom.h',
+    'netrose/rose.h',
+    'nfs/nfs.h',
+    'nl_types.h',
+    'nss.h',
+    're_comp.h',
+    'regexp.h',
+    'sched.h',
+    'sgtty.h',
+    'stab.h',
+    'stdc-predef.h',
+    'stdio_ext.h',
+    'syscall.h',
+    'termio.h',
+    'thread_db.h',
+    'ucontext.h',
+    'ustat.h',
+    'utmp.h',
+    'values.h',
+    'wait.h',
+    'xlocale.h',
+    # Hardware specific headers
+    'arm_neon.h',
+    'emmintrin.h',
+    'xmmintin.h',
+    ])
+
+# Folders of C libraries so commonly used in C++,
+# that they have parity with standard C libraries.
+C_STANDARD_HEADER_FOLDERS = frozenset([
+    # standard C library
+    "sys",
+    # glibc for linux
+    "arpa",
+    "asm-generic",
+    "bits",
+    "gnu",
+    "net",
+    "netinet",
+    "protocols",
+    "rpc",
+    "rpcsvc",
+    "scsi",
+    # linux kernel header
+    "drm",
+    "linux",
+    "misc",
+    "mtd",
+    "rdma",
+    "sound",
+    "video",
+    "xen",
+  ])
+
 # Type names
 _TYPES = re.compile(
     r'^(?:'
@@ -600,9 +812,10 @@ _ALT_TOKEN_REPLACEMENT_PATTERN = re.compile(
 # _IncludeState.CheckNextIncludeOrder().
 _C_SYS_HEADER = 1
 _CPP_SYS_HEADER = 2
-_LIKELY_MY_HEADER = 3
+_OTHER_SYS_HEADER = 3
-_POSSIBLE_MY_HEADER = 4
+_LIKELY_MY_HEADER = 4
-_OTHER_HEADER = 5
+_POSSIBLE_MY_HEADER = 5
+_OTHER_HEADER = 6
 
 # These constants define the current inline assembly state
 _NO_ASM = 0       # Outside of inline assembly block
@@ -622,6 +835,22 @@ _SEARCH_C_FILE = re.compile(r'\b(?:LINT_C_FILE|'
 # Match string that indicates we're working on a Linux Kernel file.
 _SEARCH_KERNEL_FILE = re.compile(r'\b(?:LINT_KERNEL_FILE)')
 
+# Commands for sed to fix the problem
+_SED_FIXUPS = {
+  'Remove spaces around =': r's/ = /=/',
+  'Remove spaces around !=': r's/ != /!=/',
+  'Remove space before ( in if (': r's/if (/if(/',
+  'Remove space before ( in for (': r's/for (/for(/',
+  'Remove space before ( in while (': r's/while (/while(/',
+  'Remove space before ( in switch (': r's/switch (/switch(/',
+  'Should have a space between // and comment': r's/\/\//\/\/ /',
+  'Missing space before {': r's/\([^ ]\){/\1 {/',
+  'Tab found, replace by spaces': r's/\t/  /g',
+  'Line ends in whitespace.  Consider deleting these extra spaces.': r's/\s*$//',
+  'You don\'t need a ; after a }': r's/};/}/',
+  'Missing space after ,': r's/,\([^ ]\)/, \1/g',
+}
+
 _regexp_compile_cache = {}
 
 # {str, set(int)}: a map from error categories to sets of linenumbers
@@ -641,13 +870,19 @@ _repository = None
 # Files to exclude from linting. This is set by the --exclude flag.
 _excludes = None
 
-# Whether to supress PrintInfo messages
+# Whether to supress all PrintInfo messages, UNRELATED to --quiet flag
 _quiet = False
 
 # The allowed line length of files.
 # This is set by --linelength flag.
 _line_length = 80
 
+# This allows to use different include order rule than default
+_include_order = "default"
+
+# This allows different config files to be used
+_config_filename = "CPPLINT.cfg"
+
 try:
   unicode
 except NameError:
@@ -678,7 +913,7 @@ def unicode_escape_decode(x):
 
 # Treat all headers starting with 'h' equally: .h, .hpp, .hxx etc.
 # This is set by --headers flag.
-_hpp_headers = set(['h', 'hh', 'hpp', 'hxx', 'h++', 'cuh'])
+_hpp_headers = set([])
 
 # {str, bool}: a map from error categories to booleans which indicate if the
 # category should be suppressed for every line.
@@ -687,30 +922,48 @@ _global_error_suppressions = {}
 def ProcessHppHeadersOption(val):
   global _hpp_headers
   try:
-    _hpp_headers = set(val.split(','))
+    _hpp_headers = {ext.strip() for ext in val.split(',')}
-    # Automatically append to extensions list so it does not have to be set 2 times
-    _valid_extensions.update(_hpp_headers)
   except ValueError:
     PrintUsage('Header extensions must be comma separated list.')
 
+def ProcessIncludeOrderOption(val):
+  if val is None or val == "default":
+    pass
+  elif val == "standardcfirst":
+    global _include_order
+    _include_order = val
+  else:
+    PrintUsage('Invalid includeorder value %s. Expected default|standardcfirst')
+
 def IsHeaderExtension(file_extension):
-  return file_extension in _hpp_headers
+  return file_extension in GetHeaderExtensions()
 
 def GetHeaderExtensions():
-  return _hpp_headers or ['h']
+  if _hpp_headers:
+    return _hpp_headers
+  if _valid_extensions:
+    return {h for h in _valid_extensions if 'h' in h}
+  return set(['h', 'hh', 'hpp', 'hxx', 'h++', 'cuh'])
 
 # The allowed extensions for file names
 # This is set by --extensions flag
 def GetAllExtensions():
-  if not _valid_extensions:
+  return GetHeaderExtensions().union(_valid_extensions or set(
-    return GetHeaderExtensions().union(set(['c', 'cc', 'cpp', 'cxx', 'c++', 'cu']))
+    ['c', 'cc', 'cpp', 'cxx', 'c++', 'cu']))
-  return _valid_extensions
+
+def ProcessExtensionsOption(val):
+  global _valid_extensions
+  try:
+    extensions = [ext.strip() for ext in val.split(',')]
+    _valid_extensions = set(extensions)
+  except ValueError:
+    PrintUsage('Extensions should be a comma-separated list of values;'
+               'for example: extensions=hpp,cpp\n'
+               'This could not be parsed: "%s"' % (val,))
 
 def GetNonHeaderExtensions():
   return GetAllExtensions().difference(GetHeaderExtensions())
 
-
-
 def ParseNolintSuppressions(filename, raw_line, linenum, error):
   """Updates the global list of line error-suppressions.
 
@@ -843,11 +1096,13 @@ class _IncludeState(object):
   _MY_H_SECTION = 1
   _C_SECTION = 2
   _CPP_SECTION = 3
-  _OTHER_H_SECTION = 4
+  _OTHER_SYS_SECTION = 4
+  _OTHER_H_SECTION = 5
 
   _TYPE_NAMES = {
       _C_SYS_HEADER: 'C system header',
       _CPP_SYS_HEADER: 'C++ system header',
+      _OTHER_SYS_HEADER: 'other system header',
       _LIKELY_MY_HEADER: 'header this file implements',
       _POSSIBLE_MY_HEADER: 'header this file may implement',
       _OTHER_HEADER: 'other header',
@@ -857,6 +1112,7 @@ class _IncludeState(object):
       _MY_H_SECTION: 'a header this file implements',
       _C_SECTION: 'C system header',
       _CPP_SECTION: 'C++ system header',
+      _OTHER_SYS_SECTION: 'other system header',
       _OTHER_H_SECTION: 'other header',
       }
 
@@ -970,6 +1226,12 @@ class _IncludeState(object):
       else:
         self._last_header = ''
         return error_message
+    elif header_type == _OTHER_SYS_HEADER:
+      if self._section <= self._OTHER_SYS_SECTION:
+        self._section = self._OTHER_SYS_SECTION
+      else:
+        self._last_header = ''
+        return error_message
     elif header_type == _LIKELY_MY_HEADER:
       if self._section <= self._MY_H_SECTION:
         self._section = self._MY_H_SECTION
@@ -1011,6 +1273,8 @@ class _CppLintState(object):
     # "eclipse" - format that eclipse can parse
     # "vs7" - format that Microsoft Visual Studio 7 can parse
     # "junit" - format that Jenkins, Bamboo, etc can parse
+    # "sed" - returns a gnu sed command to fix the problem
+    # "gsed" - like sed, but names the command gsed, e.g. for macOS homebrew users
     self.output_format = 'emacs'
 
     # For JUnit output, save errors and failures until the end so that they
@@ -1099,7 +1363,9 @@ class _CppLintState(object):
       self.PrintInfo('Total errors found: %d\n' % self.error_count)
 
   def PrintInfo(self, message):
-    if not _quiet and self.output_format != 'junit':
+    # _quiet does not represent --quiet flag.
+    # Hide infos from stdout to keep stdout pure for machine consumption
+    if not _quiet and self.output_format not in _MACHINE_OUTPUTS:
       sys.stdout.write(message)
 
   def PrintError(self, message):
@@ -1117,9 +1383,9 @@ class _CppLintState(object):
     num_failures = len(self._junit_failures)
 
     testsuite = xml.etree.ElementTree.Element('testsuite')
-    testsuite.attrib['name'] = 'cpplint'
     testsuite.attrib['errors'] = str(num_errors)
     testsuite.attrib['failures'] = str(num_failures)
+    testsuite.attrib['name'] = 'cpplint'
 
     if num_errors == 0 and num_failures == 0:
       testsuite.attrib['tests'] = str(1)
@@ -1313,7 +1579,7 @@ class FileInfo(object):
     If we have a real absolute path name here we can try to do something smart:
     detecting the root of the checkout and truncating /path/to/checkout from
     the name so that we get header guards that don't include things like
-    "C:\Documents and Settings\..." or "/home/username/..." in them and thus
+    "C:\\Documents and Settings\\..." or "/home/username/..." in them and thus
     people on different computers who have checked the source out to different
     locations won't see bogus errors.
     """
@@ -1459,6 +1725,13 @@ def Error(filename, linenum, category, confidence, message):
     elif _cpplint_state.output_format == 'junit':
       _cpplint_state.AddJUnitFailure(filename, linenum, message, category,
           confidence)
+    elif _cpplint_state.output_format in ['sed', 'gsed']:
+      if message in _SED_FIXUPS:
+        sys.stdout.write(_cpplint_state.output_format + " -i '%s%s' %s # %s  [%s] [%d]\n" % (
+            linenum, _SED_FIXUPS[message], filename, message, category, confidence))
+      else:
+        sys.stderr.write('# %s:%s:  "%s"  [%s] [%d]\n' % (
+            filename, linenum, message, category, confidence))
     else:
       final_message = '%s:%s:  %s  [%s] [%d]\n' % (
           filename, linenum, message, category, confidence)
@@ -1599,7 +1872,7 @@ def FindNextMultiLineCommentEnd(lines, lineix):
 
 def RemoveMultiLineCommentsFromRange(lines, begin, end):
   """Clears a range of lines for multi-line comments."""
-  # Having // dummy comments makes the lines non-empty, so we will not get
+  # Having // <empty> comments makes the lines non-empty, so we will not get
   # unnecessary blank line warnings later in the code.
   for i in range(begin, end):
     lines[i] = '/**/'
@@ -1654,6 +1927,7 @@ class CleansedLines(object):
     self.raw_lines = lines
     self.num_lines = len(lines)
     self.lines_without_raw_strings = CleanseRawStrings(lines)
+    # # pylint: disable=consider-using-enumerate
     for linenum in range(len(self.lines_without_raw_strings)):
       self.lines.append(CleanseComments(
           self.lines_without_raw_strings[linenum]))
@@ -1973,7 +2247,7 @@ def CheckForCopyright(filename, lines, error):
   """Logs an error if no Copyright message appears at the top of the file."""
 
   # We'll say it should occur by line 10. Don't forget there's a
-  # dummy line at the front.
+  # placeholder line at the front.
   for line in xrange(1, min(len(lines), 11)):
     if re.search(r'Copyright', lines[line], re.I): break
   else:                       # means no copyright line was found
@@ -2076,7 +2350,8 @@ def GetHeaderGuardCPPVariable(filename):
 
     #   --root=.. , will prepend the outer directory to the header guard
     full_path = fileinfo.FullName()
-    root_abspath = os.path.abspath(_root)
+    # adapt slashes for windows
+    root_abspath = os.path.abspath(_root).replace('\\', '/')
 
     maybe_path = StripListPrefix(PathSplitToList(full_path),
                                  PathSplitToList(root_abspath))
@@ -2216,16 +2491,22 @@ def CheckHeaderFileIncluded(filename, include_state, error):
       continue
     headername = FileInfo(headerfile).RepositoryName()
     first_include = None
+    include_uses_unix_dir_aliases = False
     for section_list in include_state.include_list:
       for f in section_list:
-        if headername in f[0] or f[0] in headername:
+        include_text = f[0]
+        if "./" in include_text:
+          include_uses_unix_dir_aliases = True
+        if headername in include_text or include_text in headername:
           return
         if not first_include:
           first_include = f[1]
 
-    error(filename, first_include, 'build/include', 5,
+    message = '%s should include its header file %s' % (fileinfo.RepositoryName(), headername)
-          '%s should include its header file %s' % (fileinfo.RepositoryName(),
+    if include_uses_unix_dir_aliases:
-                                                    headername))
+      message += ". Relative paths like . and .. are not allowed."
+
+    error(filename, first_include, 'build/include', 5, message)
 
 
 def CheckForBadCharacters(filename, lines, error):
@@ -2876,7 +3157,7 @@ class NestingState(object):
     #   };
     class_decl_match = Match(
         r'^(\s*(?:template\s*<[\w\s<>,:=]*>\s*)?'
-        r'(class|struct)\s+(?:[A-Z_]+\s+)*(\w+(?:::\w+)*))'
+        r'(class|struct)\s+(?:[a-zA-Z0-9_]+\s+)*(\w+(?:::\w+)*))'
         r'(.*)$', line)
     if (class_decl_match and
         (not self.stack or self.stack[-1].open_parentheses == 0)):
@@ -3144,7 +3425,8 @@ def CheckForNonStandardConstructs(filename, clean_lines, linenum,
         Search(r'\bstd\s*::\s*initializer_list\b', constructor_args[0]))
     copy_constructor = bool(
         onearg_constructor and
-        Match(r'(const\s+)?%s(\s*<[^>]*>)?(\s+const)?\s*(?:<\w+>\s*)?&'
+        Match(r'((const\s+(volatile\s+)?)?|(volatile\s+(const\s+)?))?'
+              r'%s(\s*<[^>]*>)?(\s+const)?\s*(?:<\w+>\s*)?&'
               % re.escape(base_classname), constructor_args[0].strip()))
 
     if (not is_marked_explicit and
@@ -3203,7 +3485,7 @@ def CheckSpacingForFunctionCall(filename, clean_lines, linenum, error):
   # Note that we assume the contents of [] to be short enough that
   # they'll never need to wrap.
   if (  # Ignore control structures.
-      not Search(r'\b(if|for|while|switch|return|new|delete|catch|sizeof)\b',
+      not Search(r'\b(if|elif|for|while|switch|return|new|delete|catch|sizeof)\b',
                  fncall) and
       # Ignore pointers/references to functions.
       not Search(r' \([^)]+\)\([^)]*(\)|,$)', fncall) and
@@ -3316,7 +3598,7 @@ def CheckForFunctionLengths(filename, clean_lines, linenum,
       if Search(r'(;|})', start_line):  # Declarations and trivial functions
         body_found = True
         break                              # ... ignore
-      elif Search(r'{', start_line):
+      if Search(r'{', start_line):
         body_found = True
         function = Search(r'((\w|:)*)\(', line).group(1)
         if Match(r'TEST', function):    # Handle TEST... macros
@@ -3509,9 +3791,10 @@ def CheckSpacing(filename, clean_lines, linenum, nesting_state, error):
   # get rid of comments and strings
   line = clean_lines.elided[linenum]
 
-  # You shouldn't have spaces before your brackets, except maybe after
+  # You shouldn't have spaces before your brackets, except for C++11 attributes
-  # 'delete []' or 'return []() {};'
+  # or maybe after 'delete []', 'return []() {};', or 'auto [abc, ...] = ...;'.
-  if Search(r'\w\s+\[', line) and not Search(r'(?:delete|return)\s+\[', line):
+  if (Search(r'\w\s+\[(?!\[)', line) and
+      not Search(r'(?:auto&?|delete|return)\s+\[', line)):
     error(filename, linenum, 'whitespace/braces', 5,
           'Extra space before [')
 
@@ -4029,11 +4312,11 @@ def CheckBraces(filename, clean_lines, linenum, error):
   # its line, and the line after that should have an indent level equal to or
   # lower than the if. We also check for ambiguous if/else nesting without
   # braces.
-  if_else_match = Search(r'\b(if\s*\(|else\b)', line)
+  if_else_match = Search(r'\b(if\s*(|constexpr)\s*\(|else\b)', line)
   if if_else_match and not Match(r'\s*#', line):
     if_indent = GetIndentLevel(line)
     endline, endlinenum, endpos = line, linenum, if_else_match.end()
-    if_match = Search(r'\bif\s*\(', line)
+    if_match = Search(r'\bif\s*(|constexpr)\s*\(', line)
     if if_match:
       # This could be a multiline if condition, so find the end first.
       pos = if_match.end() - 1
@@ -4092,9 +4375,9 @@ def CheckTrailingSemicolon(filename, clean_lines, linenum, error):
 
   # Block bodies should not be followed by a semicolon.  Due to C++11
   # brace initialization, there are more places where semicolons are
-  # required than not, so we use a whitelist approach to check these
+  # required than not, so we explicitly list the allowed rules rather
-  # rather than a blacklist.  These are the places where "};" should
+  # than listing the disallowed ones.  These are the places where "};"
-  # be replaced by just "}":
+  # should be replaced by just "}":
   # 1. Some flavor of block following closing parenthesis:
   #    for (;;) {};
   #    while (...) {};
@@ -4150,11 +4433,11 @@ def CheckTrailingSemicolon(filename, clean_lines, linenum, error):
     #  - INTERFACE_DEF
     #  - EXCLUSIVE_LOCKS_REQUIRED, SHARED_LOCKS_REQUIRED, LOCKS_EXCLUDED:
     #
-    # We implement a whitelist of safe macros instead of a blacklist of
+    # We implement a list of safe macros instead of a list of
     # unsafe macros, even though the latter appears less frequently in
     # google code and would have been easier to implement.  This is because
-    # the downside for getting the whitelist wrong means some extra
+    # the downside for getting the allowed checks wrong means some extra
-    # semicolons, while the downside for getting the blacklist wrong
+    # semicolons, while the downside for getting disallowed checks wrong
     # would result in compile errors.
     #
     # In addition to macros, we also don't want to warn on
@@ -4575,7 +4858,7 @@ def CheckStyle(filename, clean_lines, linenum, file_extension, nesting_state,
   # if(match($0, " <<")) complain = 0;
   # if(match(prev, " +for \\(")) complain = 0;
   # if(prevodd && match(prevprev, " +for \\(")) complain = 0;
-  scope_or_label_pattern = r'\s*\w+\s*:\s*\\?$'
+  scope_or_label_pattern = r'\s*(?:public|private|protected|signals)(?:\s+(?:slots\s*)?)?:\s*\\?$'
   classinfo = nesting_state.InnermostClass()
   initial_spaces = 0
   cleansed_line = clean_lines.elided[linenum]
@@ -4699,13 +4982,14 @@ def _DropCommonSuffixes(filename):
   return os.path.splitext(filename)[0]
 
 
-def _ClassifyInclude(fileinfo, include, is_system):
+def _ClassifyInclude(fileinfo, include, used_angle_brackets, include_order="default"):
   """Figures out what kind of header 'include' is.
 
   Args:
     fileinfo: The current file cpplint is running over. A FileInfo instance.
     include: The path to a #included file.
-    is_system: True if the #include used <> rather than "".
+    used_angle_brackets: True if the #include used <> rather than "".
+    include_order: "default" or other value allowed in program arguments
 
   Returns:
     One of the _XXX_HEADER constants.
@@ -4715,6 +4999,8 @@ def _ClassifyInclude(fileinfo, include, is_system):
     _C_SYS_HEADER
     >>> _ClassifyInclude(FileInfo('foo/foo.cc'), 'string', True)
     _CPP_SYS_HEADER
+    >>> _ClassifyInclude(FileInfo('foo/foo.cc'), 'foo/foo.h', True, "standardcfirst")
+    _OTHER_SYS_HEADER
     >>> _ClassifyInclude(FileInfo('foo/foo.cc'), 'foo/foo.h', False)
     _LIKELY_MY_HEADER
     >>> _ClassifyInclude(FileInfo('foo/foo_unknown_extension.cc'),
@@ -4725,17 +5011,23 @@ def _ClassifyInclude(fileinfo, include, is_system):
   """
   # This is a list of all standard c++ header files, except
   # those already checked for above.
-  is_cpp_h = include in _CPP_HEADERS
+  is_cpp_header = include in _CPP_HEADERS
+
+  # Mark include as C header if in list or in a known folder for standard-ish C headers.
+  is_std_c_header = (include_order == "default") or (include in _C_HEADERS
+            # additional linux glibc header folders
+            or Search(r'(?:%s)\/.*\.h' % "|".join(C_STANDARD_HEADER_FOLDERS), include))
 
   # Headers with C++ extensions shouldn't be considered C system headers
-  if is_system and os.path.splitext(include)[1] in ['.hpp', '.hxx', '.h++']:
+  is_system = used_angle_brackets and not os.path.splitext(include)[1] in ['.hpp', '.hxx', '.h++']
-    is_system = False
 
   if is_system:
-    if is_cpp_h:
+    if is_cpp_header:
       return _CPP_SYS_HEADER
-    else:
+    if is_std_c_header:
       return _C_SYS_HEADER
+    else:
+      return _OTHER_SYS_HEADER
 
   # If the target file and the include we're checking share a
   # basename when we drop common extensions, and the include
@@ -4789,10 +5081,12 @@ def CheckIncludeLine(filename, clean_lines, linenum, include_state, error):
   #
   # We also make an exception for Lua headers, which follow google
   # naming convention but not the include convention.
-  match = Match(r'#include\s*"([^/]+\.h)"', line)
+  match = Match(r'#include\s*"([^/]+\.(.*))"', line)
-  if match and not _THIRD_PARTY_HEADERS_PATTERN.match(match.group(1)):
+  if match:
+    if (IsHeaderExtension(match.group(2)) and
+        not _THIRD_PARTY_HEADERS_PATTERN.match(match.group(1))):
       error(filename, linenum, 'build/include_subdir', 4,
-          'Include the directory when naming .h files')
+            'Include the directory when naming header files')
 
   # we shouldn't include a file more than once. actually, there are a
   # handful of instances where doing so is okay, but in general it's
@@ -4800,7 +5094,7 @@ def CheckIncludeLine(filename, clean_lines, linenum, include_state, error):
   match = _RE_PATTERN_INCLUDE.search(line)
   if match:
     include = match.group(2)
-    is_system = (match.group(1) == '<')
+    used_angle_brackets = (match.group(1) == '<')
     duplicate_line = include_state.FindHeader(include)
     if duplicate_line >= 0:
       error(filename, linenum, 'build/include', 4,
@@ -4815,7 +5109,19 @@ def CheckIncludeLine(filename, clean_lines, linenum, include_state, error):
               'Do not include .' + extension + ' files from other packages')
         return
 
-    if not _THIRD_PARTY_HEADERS_PATTERN.match(include):
+    # We DO want to include a 3rd party looking header if it matches the
+    # filename. Otherwise we get an erroneous error "...should include its
+    # header" error later.
+    third_src_header = False
+    for ext in GetHeaderExtensions():
+      basefilename = filename[0:len(filename) - len(fileinfo.Extension())]
+      headerfile = basefilename + '.' + ext
+      headername = FileInfo(headerfile).RepositoryName()
+      if headername in include or include in headername:
+        third_src_header = True
+        break
+
+    if third_src_header or not _THIRD_PARTY_HEADERS_PATTERN.match(include):
       include_state.include_list[-1].append((include, linenum))
 
       # We want to ensure that headers appear in the right order:
@@ -4830,7 +5136,7 @@ def CheckIncludeLine(filename, clean_lines, linenum, include_state, error):
       # track of the highest type seen, and complains if we see a
       # lower type after that.
       error_message = include_state.CheckNextIncludeOrder(
-          _ClassifyInclude(fileinfo, include, is_system))
+          _ClassifyInclude(fileinfo, include, used_angle_brackets, _include_order))
       if error_message:
         error(filename, linenum, 'build/include_order', 4,
               '%s. Should be: %s.h, c system, c++ system, other.' %
@@ -5084,7 +5390,7 @@ def CheckLanguage(filename, clean_lines, linenum, file_extension,
   if (IsHeaderExtension(file_extension)
       and Search(r'\bnamespace\s*{', line)
       and line[-1] != '\\'):
-    error(filename, linenum, 'build/namespaces', 4,
+    error(filename, linenum, 'build/namespaces_headers', 4,
           'Do not use unnamed namespaces in header files.  See '
           'https://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Namespaces'
           ' for more information.')
@@ -5374,19 +5680,19 @@ def CheckForNonConstReference(filename, clean_lines, linenum,
   #
   # We also accept & in static_assert, which looks like a function but
   # it's actually a declaration expression.
-  whitelisted_functions = (r'(?:[sS]wap(?:<\w:+>)?|'
+  allowed_functions = (r'(?:[sS]wap(?:<\w:+>)?|'
                            r'operator\s*[<>][<>]|'
                            r'static_assert|COMPILE_ASSERT'
                            r')\s*\(')
-  if Search(whitelisted_functions, line):
+  if Search(allowed_functions, line):
     return
   elif not Search(r'\S+\([^)]*$', line):
-    # Don't see a whitelisted function on this line.  Actually we
+    # Don't see an allowed function on this line.  Actually we
     # didn't see any function name on this line, so this is likely a
     # multi-line parameter list.  Try a bit harder to catch this case.
     for i in xrange(2):
       if (linenum > i and
-          Search(whitelisted_functions, clean_lines.elided[linenum - i - 1])):
+          Search(allowed_functions, clean_lines.elided[linenum - i - 1])):
         return
 
   decls = ReplaceAll(r'{[^}]*}', ' ', line)  # exclude function body
@@ -5461,7 +5767,7 @@ def CheckCasts(filename, clean_lines, linenum, error):
 
   if not expecting_function:
     CheckCStyleCast(filename, clean_lines, linenum, 'static_cast',
-                    r'\((int|float|double|bool|char|u?int(16|32|64))\)', error)
+                    r'\((int|float|double|bool|char|u?int(16|32|64)|size_t)\)', error)
 
   # This doesn't catch all cases. Consider (const char * const)"hello".
   #
@@ -5553,7 +5859,8 @@ def CheckCStyleCast(filename, clean_lines, linenum, cast_type, pattern, error):
     return False
 
   # operator++(int) and operator--(int)
-  if context.endswith(' operator++') or context.endswith(' operator--'):
+  if (context.endswith(' operator++') or context.endswith(' operator--') or
+      context.endswith('::operator++') or context.endswith('::operator--')):
     return False
 
   # A single unnamed argument for a function tends to look like old style cast.
@@ -5614,11 +5921,11 @@ _HEADERS_CONTAINING_TEMPLATES = (
                      )),
     ('<limits>', ('numeric_limits',)),
     ('<list>', ('list',)),
-    ('<map>', ('map', 'multimap',)),
+    ('<map>', ('multimap',)),
     ('<memory>', ('allocator', 'make_shared', 'make_unique', 'shared_ptr',
                   'unique_ptr', 'weak_ptr')),
     ('<queue>', ('queue', 'priority_queue',)),
-    ('<set>', ('set', 'multiset',)),
+    ('<set>', ('multiset',)),
     ('<stack>', ('stack',)),
     ('<string>', ('char_traits', 'basic_string',)),
     ('<tuple>', ('tuple',)),
@@ -5652,6 +5959,16 @@ for _header, _templates in _HEADERS_MAYBE_TEMPLATES:
         (re.compile(r'[^>.]\b' + _template + r'(<.*?>)?\([^\)]'),
             _template,
             _header))
+# Match set<type>, but not foo->set<type>, foo.set<type>
+_re_pattern_headers_maybe_templates.append(
+    (re.compile(r'[^>.]\bset\s*\<'),
+        'set<>',
+        '<set>'))
+# Match 'map<type> var' and 'std::map<type>(...)', but not 'map<type>(...)''
+_re_pattern_headers_maybe_templates.append(
+    (re.compile(r'(std\b::\bmap\s*\<)|(^(std\b::\b)map\b\(\s*\<)'),
+        'map<>',
+        '<map>'))
 
 # Other scripts may reach in and modify this pattern.
 _re_pattern_templates = []
@@ -5734,9 +6051,7 @@ def UpdateIncludeState(filename, include_dict, io=codecs):
   """
   headerfile = None
   try:
-    headerfile = io.open(filename, 'r', 'utf8', 'replace')
+    with io.open(filename, 'r', 'utf8', 'replace') as headerfile:
-  except IOError:
-    return False
       linenum = 0
       for line in headerfile:
         linenum += 1
@@ -5746,6 +6061,9 @@ def UpdateIncludeState(filename, include_dict, io=codecs):
           include = match.group(2)
           include_dict.setdefault(include, linenum)
     return True
+  except IOError:
+    return False
+
 
 
 def CheckForIncludeWhatYouUse(filename, clean_lines, include_state, error,
@@ -6215,13 +6533,13 @@ def ProcessConfigOverrides(filename):
     if not base_name:
       break  # Reached the root directory.
 
-    cfg_file = os.path.join(abs_path, "CPPLINT.cfg")
+    cfg_file = os.path.join(abs_path, _config_filename)
     abs_filename = abs_path
     if not os.path.isfile(cfg_file):
       continue
 
     try:
-      with open(cfg_file) as file_handle:
+      with open(cfg_file, encoding='utf-8') as file_handle:
         for line in file_handle:
           line, _, _ = line.partition('#')  # Remove comments.
           if not line.strip():
@@ -6259,20 +6577,15 @@ def ProcessConfigOverrides(filename):
             except ValueError:
               _cpplint_state.PrintError('Line length must be numeric.')
           elif name == 'extensions':
-            global _valid_extensions
+            ProcessExtensionsOption(val)
-            try:
-              extensions = [ext.strip() for ext in val.split(',')]
-              _valid_extensions = set(extensions)
-            except ValueError:
-              sys.stderr.write('Extensions should be a comma-separated list of values;'
-                               'for example: extensions=hpp,cpp\n'
-                               'This could not be parsed: "%s"' % (val,))
           elif name == 'root':
             global _root
             # root directories are specified relative to CPPLINT.cfg dir.
             _root = os.path.join(os.path.dirname(cfg_file), val)
           elif name == 'headers':
             ProcessHppHeadersOption(val)
+          elif name == 'includeorder':
+            ProcessIncludeOrderOption(val)
           else:
             _cpplint_state.PrintError(
                 'Invalid configuration option (%s) in file %s\n' %
@@ -6329,7 +6642,8 @@ def ProcessFile(filename, vlevel, extra_check_functions=None):
                                         codecs.getwriter('utf8'),
                                         'replace').read().split('\n')
     else:
-      lines = codecs.open(filename, 'r', 'utf8', 'replace').read().split('\n')
+      with codecs.open(filename, 'r', 'utf8', 'replace') as target_file:
+        lines = target_file.read().split('\n')
 
     # Remove trailing '\r'.
     # The -1 accounts for the extra trailing blank line we get from split()
@@ -6389,10 +6703,10 @@ def PrintUsage(message):
   Args:
     message: The optional error message.
   """
-  sys.stderr.write(_USAGE  % (list(GetAllExtensions()),
+  sys.stderr.write(_USAGE  % (sorted(list(GetAllExtensions())),
-       ','.join(list(GetAllExtensions())),
+       ','.join(sorted(list(GetAllExtensions()))),
-       GetHeaderExtensions(),
+       sorted(GetHeaderExtensions()),
-       ','.join(GetHeaderExtensions())))
+       ','.join(sorted(GetHeaderExtensions()))))
 
   if message:
     sys.exit('\nFATAL ERROR: ' + message)
@@ -6438,6 +6752,8 @@ def ParseArguments(args):
                                                  'exclude=',
                                                  'recursive',
                                                  'headers=',
+                                                 'includeorder=',
+                                                 'config=',
                                                  'quiet'])
   except getopt.GetoptError:
     PrintUsage('Invalid arguments.')
@@ -6455,9 +6771,9 @@ def ParseArguments(args):
     if opt == '--version':
       PrintVersion()
     elif opt == '--output':
-      if val not in ('emacs', 'vs7', 'eclipse', 'junit'):
+      if val not in ('emacs', 'vs7', 'eclipse', 'junit', 'sed', 'gsed'):
         PrintUsage('The only allowed output formats are emacs, vs7, eclipse '
-                   'and junit.')
+                   'sed, gsed and junit.')
       output_format = val
     elif opt == '--quiet':
       quiet = True
@@ -6489,15 +6805,16 @@ def ParseArguments(args):
         _excludes = set()
       _excludes.update(glob.glob(val))
     elif opt == '--extensions':
-      global _valid_extensions
+      ProcessExtensionsOption(val)
-      try:
-        _valid_extensions = set(val.split(','))
-      except ValueError:
-        PrintUsage('Extensions must be comma seperated list.')
     elif opt == '--headers':
       ProcessHppHeadersOption(val)
     elif opt == '--recursive':
       recursive = True
+    elif opt == '--includeorder':
+      ProcessIncludeOrderOption(val)
+    elif opt == '--config':
+      global _config_filename
+      _config_filename = val
 
   if not filenames:
     PrintUsage('No files were specified.')
@@ -6514,6 +6831,7 @@ def ParseArguments(args):
   _SetFilters(filters)
   _SetCountingStyle(counting_style)
 
+  filenames.sort()
   return filenames
 
 def _ExpandDirectories(filenames):
@@ -6545,15 +6863,35 @@ def _ExpandDirectories(filenames):
   for filename in expanded:
     if os.path.splitext(filename)[1][1:] in GetAllExtensions():
       filtered.append(filename)
-
   return filtered
 
-def _FilterExcludedFiles(filenames):
+def _FilterExcludedFiles(fnames):
   """Filters out files listed in the --exclude command line switch. File paths
   in the switch are evaluated relative to the current working directory
   """
   exclude_paths = [os.path.abspath(f) for f in _excludes]
-  return [f for f in filenames if os.path.abspath(f) not in exclude_paths]
+  # because globbing does not work recursively, exclude all subpath of all excluded entries
+  return [f for f in fnames
+          if not any(e for e in exclude_paths
+                  if _IsParentOrSame(e, os.path.abspath(f)))]
+
+def _IsParentOrSame(parent, child):
+  """Return true if child is subdirectory of parent.
+  Assumes both paths are absolute and don't contain symlinks.
+  """
+  parent = os.path.normpath(parent)
+  child = os.path.normpath(child)
+  if parent == child:
+    return True
+
+  prefix = os.path.commonprefix([parent, child])
+  if prefix != parent:
+    return False
+  # Note: os.path.commonprefix operates on character basis, so
+  # take extra care of situations like '/foo/ba' and '/foo/bar/baz'
+  child_suffix = child[len(prefix):]
+  child_suffix = child_suffix.lstrip(os.sep)
+  return child == os.path.join(prefix, child_suffix)
 
 def main():
   filenames = ParseArguments(sys.argv[1:])

bin/docs/example-to-doc

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-export EXAMPLE=$1
+export EXAMPLE="$1"
 EXNAME=$(echo "${EXAMPLE}" |cut -c 3-)
 cd examples ||exit; \
 install -d dirname "${EXAMPLE}"

bin/find-device-port-freebsd

@@ -1,24 +0,0 @@
-#!/usr/bin/env perl
-
-use warnings;
-use strict;
-
-#
-# Scan all USB devices to find the Model 01's modem device number.
-#
-my @output = qx(/usr/sbin/usbconfig show_ifdrv);
-my $serial_port_number;
-
-foreach my $line (@output) {
-  chomp $line;
-
-  next unless $line =~ m/umodem(\d+):.*Keyboardio Model 01/;
-  $serial_port_number = $1;
-}
-
-die "Can't find Model 01" unless defined($serial_port_number);
-
-my $serial_port_name = "/dev/cuaU$serial_port_number";
-die "Missing serial port at $serial_port_name" unless -e $serial_port_name;
-print "$serial_port_name\n";
-exit 0;

bin/find-device-port-linux-udev

@@ -1,92 +0,0 @@
-#!/usr/bin/env perl
-# find-device-port-linux-udev - Kaleidoscope helper tool
-# Copyright (C) 2017-2018  Keyboard.io, Inc.
-#
-# This program is free software: you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free Software
-# Foundation, version 3.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program. If not, see <http://www.gnu.org/licenses/>.
-
-use warnings;
-use strict;
-
-use FindBin qw{$Bin};
-
-die "Usage: $0 VID PID [-v]\n" unless @ARGV >= 2;
-
-my $vid    = shift @ARGV;
-my $pid    = shift @ARGV;
-my $verbose = shift @ARGV if (@ARGV);
-my $prefix = '/dev/serial/by-id/';
-my @paths  = `ls $prefix`;
-my %devices;
-my @log;
-
-sub debug {
-   if ($verbose) {
-	 print STDERR @_;
-   } else {
-	push @log, @_;
-   }
-}
-
-sub print_warning {
-    print STDERR @_;
-}
-
-
-debug "Looking for USB device with vid=$vid and pid=$pid\n";
-
-for my $path (@paths) {
-    chomp($path);
-    debug "Examining $path\n";
-    debug "  not symlink\n" unless -l $prefix . $path;
-    next unless -l $prefix . $path;
-    my @data = `udevadm info -q property --name=${prefix}${path}`;
-    for my $line (@data) {
-        chomp($line);
-        my ( $key, $val ) = split( /=/, $line, 2 );
-        $devices{$path}{$key} = $val;
-    }
-    if ( hex $devices{$path}{'ID_VENDOR_ID'} != hex $vid ) {
-        debug "  ID_VENDOR_ID $devices{$path}{'ID_VENDOR_ID'} != $vid\n";
-        next;
-    }
-    if ( hex $devices{$path}{'ID_MODEL_ID'} != hex $pid ) {
-        debug "  ID_MODEL_ID $devices{$path}{'ID_MODEL_ID'} != $pid\n";
-        next;
-    }
-
-    debug "  Found keyboard!\n";
-
-    if ( $devices{$path}{'ID_MM_DEVICE_IGNORE'} ) {
-        debug "  ID_MM_DEVICE_IGNORE is set - good!\n";
-    }
-
-    if ( $devices{$path}{'ID_MM_CANDIDATE'}) {
-      my $rules = "$Bin/../etc/60-kaleidoscope.rules";
-      print_warning <<EOWARN
-
-WARNING: your udev rules are currently configured to suggest
-that your keyboard is suitable for use by ModemManager.  This
-means that there is a risk of ModemManager interfering.  To avoid
-this, copy
-
-    $rules
-
-to /etc/udev/rules.d
-EOWARN
-    }
-
-    print $devices{$path}{DEVNAME};
-    exit(0);
-}
-
-#debug("ERROR: I couldn't find a USB device matching the keyboard's USB Vendor and Device IDs\n");
-#print_warning(join("\n",@log));

bin/find-device-port-macos

@@ -1,113 +0,0 @@
-#!/usr/bin/env perl
-
-# Based on listArduinos.pl from https://github.com/todbot/usbSearch (License: MIT)
-# Original (C) 2012, Tod E. Kurt, http://todbot.com/blog/
-# This version by Michael Richters <gedankenexperimenter@gmail.com> and Jesse Vincent <jesse@keyboard.io>
-
-use warnings;
-use strict;
-
-my $vid = shift @ARGV;
-my $pid = shift @ARGV;
-
-if (!defined $vid || !defined $pid) {
-  die "$0 has two required parameters, VID and PID";
-}
-
-# ioreg might be more machine-readable than system_profiler, but I haven't been able to
-# get it to produce useful output
-my @output = qx(/usr/sbin/system_profiler SPUSBDataType 2> /dev/null);
-
-my $serial   = "";
-my $location = "";
-
-my $output = join('', @output);
-
-my @stanzas = split(/\n\n/, $output);
-foreach my $stanza (@stanzas) {
-    if ($stanza =~ /Product ID: ${pid}/ && $stanza =~ /Vendor ID: ${vid}/) {
-        if ($stanza =~ /Serial Number: (.*?)$/m) {
-            $serial = $1;
-        }
-        if ($stanza =~ /Location ID: (.*?)$/m) {
-            $location = $1;
-        }
-
-        if ($serial) {
-            try_for_raw_serialnum($serial);
-        }
-        if ($location) {
-            try_for_location_id($location);
-        }
-        if ($serial) {
-            try_for_sn_prefix($serial);
-        }
-
-    }
-}
-
-sub try_for_raw_serialnum {
-    my $sn = shift;
-
-    my $serial_port_name = "/dev/cu.usbmodem" . $sn;
-    exit_with_port_if_exists($serial_port_name);
-
-    # High Sierra sometimes has a mismatch between the serial number and the device
-    # filename. I'm not sure why, but system_profiler has a serial number ending in "E",
-    # whereas the device filename ends in "1". In fact, when I change HID.getShortName()
-    # to return "kbio02", the final character is replaced with a "1". 
-    
-    if ($serial_port_name =~ /\d$/) {
-    	chop $serial_port_name;
-    	exit_with_port_if_exists($serial_port_name . "1");
-    } else {
-	# If the serial port name doesn't end with a digit, try -appending- rather than replacing 
-	# the last character of the port name
-    	exit_with_port_if_exists($serial_port_name . "1");
-    
-	# and if that didn't work, try replacing the last character with a "1" anyway.
-    	# Jason Koh reports that he saw this behavior as required on Catalina in May 2020.
-    
-    	chop $serial_port_name;
-    	exit_with_port_if_exists($serial_port_name . "1");
-    }
-
-
-}
-
-sub try_for_location_id {
-    my $location_id = shift;
-
-    # macOS truncates the string of "0"s from the right of the location id.
-    # Here, also, the final character is an appended "1", so if macOS ever stops doing that,
-    # this will need an update, as well. 
-    if ($location_id =~ /0x(\d+?)0*\b/) {
-        my $loc = $1;
-        exit_with_port_if_exists("/dev/cu.usbmodem" . $loc . "1");
-    }
-}
-
-sub try_for_sn_prefix {
-    my $sn = shift;
-    # If macOS has appended 'E', take it off to maximise our chances of a match.
-    $sn =~ s/E$//;
-
-    # If none of the above tests succeeds, just list the directory and see if there are any
-    # files that have the device shortname that we expect:
-    foreach my $line (qx(ls /dev/cu.usbmodem*)) {
-        if ($line =~ /${sn}/) {
-            chomp $line;
-            print $line;
-            exit 0;
-        }
-    }
-}
-
-sub exit_with_port_if_exists {
-    my $serial_port_name = shift;
-
-    if (-e $serial_port_name) {
-        print $serial_port_name;
-        exit 0;
-    }
-}

bin/find-device-port-windows.ps1

@@ -1,41 +0,0 @@
-# Usage:
-#
-# > find-device-port-cygwin.ps1 '1209' '2300' -Format COM
-# COM7
-# > find-device-port-cygwin.ps1 '1209' '2300' -Format WSL
-# /dev/ttyS7
-# > find-device-port-cygwin.ps1 '1209' '2300' -Format Cygwin
-# /dev/ttyS6
-Param(
-    [string]$VendorID,
-    [string]$ProductID, # Careful; $PID is a different builtin
-    [ValidateSet('COM','Cygwin','WSL')][string]$Format
-)
-
-$DeviceParametersRegKey = @(Get-ChildItem -ErrorAction SilentlyContinue -Recurse 'HKLM:\SYSTEM\CurrentControlSet\Enum' |
-    Where-Object Name -match "VID_$VendorID&PID_$ProductID" |
-    Where-Object Property -eq PortName)
-
-if ($DeviceParametersRegKey.Count -eq 0) {
-    throw "Could not find any devices matching VID $VendorID and PID $ProductID which were mapped to a COM port"
-}
-
-if ($DeviceParametersRegKey.Count -ge 2) {
-    throw "More than one devices matching VID $VendorID and PID $ProductID were found mapped to a COM port"
-}
-
-# This will be of form 'COM6'
-$COMPortName = ($DeviceParametersRegKey | Get-ItemProperty).PortName
-$COMPortNumber = [int]$COMPortName.Substring(3)
-
-if ($Format -eq 'COM') {
-    $Output = $COMPortName
-} elseif ($Format -eq 'WSL') {
-    $Output = "/dev/ttyS$COMPortNumber"
-} elseif ($Format -eq 'Cygwin') {
-    $CygwinPortNumber = $COMPortNumber - 1
-    $Output = "/dev/ttyS$CygwinPortNumber"
-}
-
-# "-NoNewline" below is important to prevent bash from seeing an extra trailing '\r'
-Write-Host -NoNewline $Output

bin/find-filename-conflicts

@@ -1,55 +0,0 @@
-#!/usr/bin/env bash
-# find-filename-conflicts - Finds cpp files with conflicting filenames
-# Copyright (C) 2020  Keyboard.io, Inc.
-#
-# This program is free software: you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free Software
-# Foundation, version 3.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program. If not, see <http://www.gnu.org/licenses/>.
-
-## When building Kaleidoscope, the compiled object files are linked together
-## into a static archive. This static archive has a very simple structure, and
-## only stores filenames, not paths, not even relative ones. As such, we can't
-## have files with the same name, because they will conflict, and one will
-## override the other.
-##
-## To avoid this situation, this script will find all cpp source files (we don't
-## need to care about header-only things, those do not result in an object
-## file), and will comb through them to find conflicting filenames.
-##
-## If a conflict is found, it will print all files that share the name, and will
-## exit with an error at the end. It does not exit at the first duplicate, but
-## will find and print all of them.
-##
-## If no conflict is found, the script just prints its status message and exits
-## with zero.
-
-set -e
-
-FILE_LIST="$(find src -name '*.cpp' | sed -e 's,\(\(.*\)/\([^/]*\)\),\3 \1,')"
-
-exit_code=0
-
-echo -n "Looking for conflicting filenames... "
-
-for f in $(echo "${FILE_LIST}" | cut -f1 -d" "); do
-    count=$(echo "${FILE_LIST}" | grep -c "^${f}")
-    if [ "$count" -gt 1 ]; then
-        echo >&2
-        echo " Conflict found for ${f}: " >&2
-        echo "${FILE_LIST}" | grep "${f}" | cut -d" " -f2 | sed -e 's,^,   ,' >&2
-        exit_code=1
-    fi
-done
-
-if [ "${exit_code}" -eq 0 ]; then
-    echo "done."
-fi
-
-exit ${exit_code}

bin/find-filename-conflicts.py

@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------------
+# Copyright (c) 2022 Michael Richters <gedankenexperimenter@gmail.com>
+
+# This is free and unencumbered software released into the public domain.
+
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+# For more information, please refer to <http://unlicense.org/>
+# ------------------------------------------------------------------------------
+"""When building Kaleidoscope, the compiled object files are linked together
+into a static archive. This static archive has a very simple structure, and only
+stores filenames, not paths, not even relative ones. As such, we can't have
+files with the same name, because they will conflict, and one will override the
+other.
+
+To avoid this situation, this script will find all cpp source files (we don't
+need to care about header-only things, those do not result in an object file),
+and will comb through them to find conflicting filenames.
+
+If a conflict is found, it will print all files that share the name, and will
+exit with an error at the end. It does not exit at the first duplicate, but will
+find and print all of them.
+
+If no conflict is found, the script just prints its status message and exits
+with zero."""
+
+import os
+import re
+import sys
+
+cpp_regex = re.compile('.*\.cpp')
+
+
+def find_duplicates(root):
+    """Search for files with the same basename, but in different directories in
+    the tree under <root>.  Prints a message for each conflict found, and
+    returns a count of the number of non-unique basenames."""
+
+    # Search the specified tree for matching basenames:
+    basenames = {}
+    for dir_path, dirs, files in os.walk(root):
+        for file_name in files:
+            if cpp_regex.match(file_name):
+                if file_name not in basenames:
+                    basenames[file_name] = []
+                basenames[file_name].append(dir_path)
+
+    conflict_count = 0
+    for file_name, dirs in basenames.items():
+        # Prune unique basenames from the dict:
+        if len(dirs) <= 1:
+            continue
+
+        conflict_count += 1
+        # Print info about basenames with conflicts:
+        print(f"Conflict found for file name '{file_name}':")
+        for root in dirs:
+            path = os.path.join(root, file_name)
+            print(f'  -> {path}')
+
+    return conflict_count
+
+
+def main(args):
+    print('Searching for conflicting filenames...')
+    exit_code = 0
+    for path in args:
+        exit_code += find_duplicates(path)
+    if exit_code != 0:
+        sys.exit(exit_code)
+    print('No filename conflicts found.')
+
+
+if __name__ == "__main__":
+    main(sys.argv[1:])

bin/fix-header-includes

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+# In case it hasn't been set, assume we're being run from the root of the local
+# Kaleidoscope repository.
+: "${KALEIDOSCOPE_DIR:=$(pwd)}"
+
+# This variable is a git ref that should point to the current master branch of
+# the primary Kaleidoscope repository.  In most cases, this would be
+# `origin/master`.
+: "${KALEIDOSCOPE_MERGE_BASE:=origin/master}"
+
+# Don't do anything if the working tree has unstaged changes, to avoid
+# unintentional combining of contentful changes with formatting changes.
+if ! git diff -z --exit-code --quiet; then
+    echo "Working tree has unstaged changes; aborting."
+    exit 1
+fi
+
+# Run git-diff so we only run IWYU on files that differ from `master`.  This
+# isn't necessarily what we want, but if the current branch has been rebased, it
+# shouldn't touch any extra files.
+git diff -z --name-only "${KALEIDOSCOPE_MERGE_BASE}" -- src plugins \
+    | "${KALEIDOSCOPE_DIR}/bin/iwyu.py" -z -v
+
+# After running it on Kaleidoscope source files, run it on the test simulator,
+# which requires some additional include dirs.
+git diff -z --name-only "${KALEIDOSCOPE_MERGE_BASE}" -- testing \
+    | "${KALEIDOSCOPE_DIR}/bin/iwyu.py" \
+          -z -v \
+          -I="${KALEIDOSCOPE_DIR}" \
+          -I="${KALEIDOSCOPE_DIR}/testing/googletest/googlemock/include" \
+          -I="${KALEIDOSCOPE_DIR}/testing/googletest/googletest/include"
+
+# Always run clang-format after IWYU, because they have different indentation
+# rules for comments added by IWYU.
+git diff -z --name-only "${KALEIDOSCOPE_MERGE_BASE}" -- src plugins testing \
+    | "${KALEIDOSCOPE_DIR}/bin/format-code.py" \
+          -z -v \
+          --exclude-dir='testing/googletest' \
+          --exclude-file='generated-testcase.cpp' \
+          --force \
+          --check \
+          --verbose

bin/focus-send

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+# focus-send - Trivial Focus testing tool
+# Copyright (C) 2018-2022  Keyboard.io, Inc.
+#
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation, version 3.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+set -e
+
+OS=$(uname -s)
+
+# igncr absorbs CR from Focus CRLF line endings
+# -echo is needed because raw doesn't turn it off on Linux
+STTY_ARGS="9600 raw igncr -echo"
+
+case ${OS} in
+    Linux)
+        DEVICE="${DEVICE:-/dev/ttyACM0}"
+        ;;
+    Darwin)
+        # bash on macOS has a bug that randomly drops serial input
+        if [ -n "$BASH_VERSION" ] && [ -x /bin/dash ]; then
+            # Prevent loop in case someone exported it
+            export -n BASH_VERSION
+            exec /bin/dash "$0" "$@"
+        fi
+        DEVICE="${DEVICE:-/dev/cu.usbmodemCkbio01E}"
+        ;;
+    *)
+        echo "Error Unknown OS : ${OS}" >&2
+        exit 1
+        ;;
+esac
+
+# Redirect prior to running stty, because macOS sometimes resets termios
+# state upon last close of a terminal device.
+exec < "${DEVICE}"
+# shellcheck disable=SC2086 # intentional word splitting
+stty $STTY_ARGS
+
+read_reply () {
+    while read -r line; do
+        if [ "${line}" = "." ]; then
+            break
+        fi
+        echo "${line}"
+    done
+}
+
+# Flush any invalid commands out of input buffer.
+# This could happen after a failed upload.
+echo ' ' > "${DEVICE}"
+read_reply > /dev/null
+echo "$@" >"${DEVICE}"
+read_reply

bin/focus-test

@@ -1,45 +0,0 @@
-#!/usr/bin/env bash
-# focus-test - Trivial Focus testing tool
-# Copyright (C) 2018  Keyboard.io, Inc.
-#
-# This program is free software: you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free Software
-# Foundation, version 3.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program. If not, see <http://www.gnu.org/licenses/>.
-
-set -e
-
-OS=$(uname -s)
-
-case ${OS} in
-    Linux)
-        DEVICE="${DEVICE:-/dev/ttyACM0}"
-        stty -F "${DEVICE}" 9600 raw -echo
-        ;;
-    Darwin)
-        DEVICE="${DEVICE:-/dev/cu.usbmodemCkbio01E}"
-        stty -f "${DEVICE}" 9600 raw -echo
-        ;;
-    *)
-        echo "Error Unknown OS : ${OS}" >&2
-        exit 1
-        ;;
-esac
-
-
-exec 3<"${DEVICE}"
-echo "$@" >"${DEVICE}"
-
-while read -r line <&3; do
-    line="$(echo -n "${line}" | tr -d '\r')"
-    if [ "${line}" == "." ]; then
-        break
-    fi
-    echo "${line}"
-done

bin/format-code.py

@@ -0,0 +1,275 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------------
+# Copyright (c) 2022 Michael Richters <gedankenexperimenter@gmail.com>
+
+# This is free and unencumbered software released into the public domain.
+
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+# For more information, please refer to <http://unlicense.org/>
+# ------------------------------------------------------------------------------
+"""This script runs clang-format on a Kaleidoscope repository."""
+
+import argparse
+import logging
+import os
+import re
+import shutil
+import subprocess
+import sys
+
+sys.dont_write_bytecode = True
+
+from common import check_git_diff, setup_logging, split_on_newlines, split_on_nulls
+
+
+# ==============================================================================
+def parse_args(args):
+    """Parse command line parameters
+
+    Args:
+      args (list[str]): command line parameters as list of strings
+          (for example  ``["--help"]``).
+
+    Returns:
+      :obj:`argparse.Namespace`: command line parameters namespace
+    """
+    parser = argparse.ArgumentParser(
+        description="""
+        Recursively search specified directories and format source files with
+        clang-format.  By default, it operates on Arduino C++ source files with
+        extensions: *.{cpp,h,hpp,inc,ino}.""")
+    parser.add_argument(
+        '-q',
+        '--quiet',
+        dest='loglevel',
+        action='store_const',
+        const=logging.ERROR,
+        default=logging.WARNING,
+        help="""
+        Suppress output except warnings and errors.""",
+    )
+    parser.add_argument(
+        '-v',
+        '--verbose',
+        action='store_const',
+        dest='loglevel',
+        const=logging.INFO,
+        help="""
+        Output verbose debugging information.""",
+    )
+    parser.add_argument(
+        '-d',
+        '--debug',
+        action='store_const',
+        dest='loglevel',
+        const=logging.DEBUG,
+        help="""
+        Save output from `include-what-you-use` for processed files beside the originals, with
+        a '.iwyu' suffix, for debugging purposes.""",
+    )
+    parser.add_argument(
+        '-X',
+        '--exclude-dir',
+        action='append',
+        dest='exclude_dirs',
+        default=[],
+        metavar="<path>",
+        help="""
+        Exclude dir from search (path relative to the pwd)""",
+    )
+    parser.add_argument(
+        '-x',
+        '--exclude-file',
+        action='append',
+        dest='exclude_files',
+        default=[],
+        metavar="<file>",
+        help="""
+        Exclude <file> (base name only, not a full path) from formatting""",
+    )
+    parser.add_argument(
+        '-r',
+        '--regex',
+        dest='regex',
+        default=r'\.(cpp|h|hpp|inc|ino)$',
+        metavar="<regex>",
+        help="""
+        Regular expression for matching source file names""",
+    )
+    parser.add_argument(
+        '-z',
+        '-0',
+        action='store_const',
+        dest='input_splitter',
+        const=split_on_nulls,
+        default=split_on_newlines,
+        help="""
+        When reading target filenames from standard input, break on NULL characters instead
+        of newlines.""",
+    )
+    parser.add_argument(
+        '-f',
+        '--force',
+        action='store_true',
+        help="""
+        Format code even if there are unstaged changes""",
+    )
+    parser.add_argument(
+        '--check',
+        action='store_true',
+        help="""
+        Check for changes after formatting by running `git diff --exit-code`.  If there are any
+        changes after formatting, a non-zero exit code is returned.""",
+    )
+    parser.add_argument(
+        'targets',
+        metavar="<search_dir>",
+        nargs='*',
+        help="""
+        A list of files and/or directories to search for source files to format.""",
+    )
+    return parser.parse_args(args)
+
+
+# ==============================================================================
+def main():
+    """Parse command-line arguments and format source files.
+    """
+    # Parse command-line argumets:
+    opts = parse_args(sys.argv[1:])
+    # Set up logging system:
+    setup_logging(opts.loglevel)
+
+    # ----------------------------------------------------------------------
+    # Unless we've been given the `--force` option, check for unstaged changes to avoid
+    # clobbering any work in progress:
+    exit_code = 0
+    if not opts.force:
+        changed_files = check_git_diff()
+        if len(changed_files) > 0:
+            logging.error("Working tree has unstaged changes; aborting")
+            return 1
+
+    # Locate `clang-format` executable:
+    clang_format_exe = os.getenv('KALEIDOSCOPE_CODE_FORMATTER')
+    if clang_format_exe is None:
+        clang_format_exe = shutil.which('clang-format')
+    logging.debug("Found `clang-format` executable: %s", clang_format_exe)
+    clang_format_cmd = [clang_format_exe, '-i']
+    if opts.loglevel <= logging.INFO:
+        clang_format_cmd.append('--verbose')
+
+    # ----------------------------------------------------------------------
+    # Read targets from command line:
+    targets = opts.targets
+    logging.debug("CLI target parameters: %s", targets)
+
+    # If stdin is a pipe, read target filenames from it:
+    if not sys.stdin.isatty():
+        targets += opts.input_splitter(sys.stdin.read())
+    logging.debug("All targets: %s", targets)
+
+    # Prepare exclusion lists.  The file excludes are basenames only, and the dirs get
+    # converted to absolute path names.
+    exclude_files = set(opts.exclude_files)
+    exclude_dirs = set(os.path.abspath(_) for _ in opts.exclude_dirs)
+
+    # Convert target paths to absolute, and remove any that are excluded:
+    target_paths = set(os.path.abspath(_) for _ in targets if _ not in exclude_dirs)
+    logging.debug("Target paths: %s", target_paths)
+
+    # Build separate sets of target files and dirs.  Later, we'll search target dirs and add
+    # matching target files to the files set.
+    target_files = set()
+    target_dirs = set()
+    for t in target_paths:
+        if os.path.isfile(t):
+            target_files.add(os.path.abspath(t))
+        elif os.path.isdir(t):
+            target_dirs.add(os.path.abspath(t))
+    logging.debug("Target files after separating: %s", target_files)
+    logging.debug("Target dirs after separating: %s", target_dirs)
+
+    # Remove excluded filenames:
+    target_files -= set(_ for _ in target_files if os.path.basename(_) in exclude_files)
+
+    # Remove files and dirs in excluded dirs:
+    target_files -= set(_ for _ in target_files for x in exclude_dirs if _.startswith(x))
+    target_dirs -= set(_ for _ in target_dirs for x in exclude_dirs if _.startswith(x))
+
+    # Compile regex for matching files to be formatted:
+    target_matcher = re.compile(opts.regex)
+
+    # Remove target files that don't match the regex:
+    logging.debug("Target files before matching regex: %s", target_files)
+    target_files = set(_ for _ in target_files if target_matcher.search(_))
+    logging.debug("Target files after matching regex: %s", target_files)
+
+    # Search target dirs for non-excluded files, and add them to `target_files`:
+    logging.debug("Searching target dirs: %s", target_dirs)
+    for path in target_dirs:
+        for root, dirs, files in os.walk(path):
+            # Prune excluded dirs
+            for x in exclude_dirs:
+                if x in (os.path.join(root, _) for _ in dirs):
+                    dirs.remove(os.path.basename(x))
+            # Add non-excluded files
+            for f in files:
+                if target_matcher.search(f) and f not in exclude_files:
+                    target_files.add(os.path.join(root, f))
+
+    if len(target_files) == 0:
+        logging.error("No target files found; exiting.")
+        return 1
+
+    # Run clang-format on target files:
+    proc = subprocess.run(clang_format_cmd + sorted(target_files))
+    if proc.returncode != 0:
+        logging.error("Error: clang-format returned non-zero status: %s", proc.returncode)
+        return proc.returncode
+    else:
+        logging.info("Finished formatting target files.")
+
+    # If we've been asked to check for changes made by the formatter:
+    if opts.check:
+        logging.warning('Checking for changes made by the formatter...')
+        changed_files = check_git_diff()
+        if len(changed_files) == 0:
+            logging.warning("No files changed.  Congratulations!")
+        else:
+            logging.warning("Found files with changes after formatting:")
+            exit_code = 1
+        for f in changed_files:
+            logging.warning("    %s", f)
+
+    return exit_code
+
+
+# ==============================================================================
+if __name__ == "__main__":
+    try:
+        sys.exit(main())
+    except KeyboardInterrupt:
+        logging.info("Aborting")
+        sys.exit(1)

bin/format-code.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+: "${KALEIDOSCOPE_DIR:=$(pwd)}"
+cd "${KALEIDOSCOPE_DIR}" || exit 1
+
+: "${VERBOSE:=}"
+
+"${KALEIDOSCOPE_DIR}/bin/format-code.py" \
+    --exclude-dir 'testing/googletest' \
+    --exclude-file 'generated-testcase.cpp' \
+    --verbose \
+    src plugins testing

bin/iwyu.py

@@ -0,0 +1,508 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------------
+# Copyright (c) 2022 Michael Richters <gedankenexperimenter@gmail.com>
+
+# This is free and unencumbered software released into the public domain.
+
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+# For more information, please refer to <http://unlicense.org/>
+# ------------------------------------------------------------------------------
+"""Run `include-what-you-use` on Kaleidoscope sources
+
+This is a script for maintenance of the headers included in Kaleidoscope source
+files.  It is not currently possible to run this automatically on all
+Kaleidoscope source files, because of the peculiarities therein.  It uses
+llvm/clang to determine which headers should be included in a given file, but
+there's no avr-clang, so we're limited to using the virtual hardware device.
+
+It takes any number of source files as its input, examines them and updates the
+list of header `#include` directives.
+
+It is safe to run on most Kaleidoscope source files, and a good idea to run it
+on new ones (after staging them, so you can easily see what changes have been
+made).
+"""
+
+# Example invocation:
+# $ git ls-files -m | grep '\.\(h\|cpp\)' | bin/iwyu.py
+
+import argparse
+import glob
+import logging
+import os
+import re
+import shlex
+import shutil
+import subprocess
+import sys
+
+sys.dont_write_bytecode = True
+
+from common import cwd, setup_logging, split_on_newlines, split_on_nulls
+
+
+# ==============================================================================
+def parse_args(args):
+    """Parse command line parameters
+
+    Args:
+      args (list[str]): command line parameters as list of strings
+          (for example  ``["--help"]``).
+
+    Returns:
+      :obj:`argparse.Namespace`: command line parameters namespace
+    """
+    parser = argparse.ArgumentParser(
+        description="""
+        Run `include-what-you-use` on source files given as command-line arguments and/or read
+        from standard input.  When reading target filenames from standard input, they should be
+        either absolute or relative to the current directory, and each line of input (minus the
+        line-ending character(s) is treated as a filename.""")
+    parser.add_argument(
+        '-q',
+        '--quiet',
+        dest='loglevel',
+        action='store_const',
+        const=logging.ERROR,
+        default=logging.WARNING,
+        help="""
+        Suppress output except warnings and errors.""",
+    )
+    parser.add_argument(
+        '-v',
+        '--verbose',
+        action='store_const',
+        dest='loglevel',
+        const=logging.INFO,
+        help="""
+        Output verbose debugging information.""",
+    )
+    parser.add_argument(
+        '-d',
+        '--debug',
+        action='store_const',
+        dest='loglevel',
+        const=logging.DEBUG,
+        help="""
+        Save output from `include-what-you-use` for processed files beside the originals, with
+        a '.iwyu' suffix, for debugging purposes.""",
+    )
+    parser.add_argument(
+        '-r',
+        '--regex',
+        action='store',
+        dest='regex',
+        default=r'\.(h|cpp)$',
+        help="""
+        A regular expression for matching filenames Only the basename of the file is
+        matched, and the regex is only used when searching a directory for files to process,
+        not on target filenames specified in arguments or read from standard input.""",
+    )
+    parser.add_argument(
+        '-i',
+        '--ignores_file',
+        action='store',
+        dest='ignores_file',
+        default='.iwyu_ignore',
+        metavar='<ignores_file>',
+        help="""
+        The name of a file (relative to KALEIDOSCOPE_DIR) that contains a list of glob patterns
+        that will be ignored when a target directory is searched for filenames that match
+        <regex>.""",
+    )
+    parser.add_argument(
+        '-I',
+        '--include',
+        action='append',
+        dest='include_dirs',
+        metavar='<dir>',
+        help="""
+        Add <dir> to the list of directories that will be searched for header files.""",
+    )
+    parser.add_argument(
+        '-z',
+        '-0',
+        action='store_const',
+        dest='input_splitter',
+        const=split_on_nulls,
+        default=split_on_newlines,
+        help="""
+        When reading target filenames from standard input, break on NULL characters instead
+        of newlines.""",
+    )
+    parser.add_argument(
+        '--update_comments',
+        action='store_true',
+        help="""
+        Call `include-what-you-use` with `--update_comments` to always rewrite its 'for'
+        comments regarding which symbols are used.""",
+    )
+    parser.add_argument(
+        'targets',
+        nargs='*',
+        metavar="<target>",
+        help="""
+        A list of target files and/or directories to search for source files to format.  Any
+        target file will be processed, regardless of the filename.  Any target directory will
+        be recursively searched for files matching the regular expression given by --regex.
+        Filenames and directories beginning with a '.' will always be excluded from the search,
+        but can still be processed if specified as a command-line target.""",
+    )
+    return parser.parse_args(args)
+
+
+# ==============================================================================
+def main():
+    """Main entry point function."""
+    # Parse command-line arguments:
+    opts = parse_args(sys.argv[1:])
+    # Set up logging system:
+    setup_logging(opts.loglevel)
+
+    # ----------------------------------------------------------------------
+    # Find include-what-you-use:
+    iwyu = shutil.which('include-what-you-use')
+    logging.debug("Found `include-what-you-use` executable: %s", iwyu)
+    iwyu_opts = [
+        '--no_fwd_decls',  # No forward declarations
+        '--max_line_length=100',
+    ]
+    if opts.update_comments:
+        iwyu_opts.append('--update_comments')
+    # Prepend '-Xiwyu' to each `include-what-you-use` option:
+    iwyu_opts = [_ for opt in iwyu_opts for _ in ('-Xiwyu', opt)]
+
+    # ----------------------------------------------------------------------
+    # Find fix_includes:
+    fix_includes = shutil.which('fix_includes.py')
+    logging.debug("Found `fix_includes` executable: %s", fix_includes)
+
+    # ----------------------------------------------------------------------
+    # Find clang (first checking environment variable):
+    clang = os.getenv('CLANG_COMPILER')
+    if clang is None:
+        clang = shutil.which('clang')
+    logging.debug("Found `clang` executable: %s", clang)
+
+    # Get system include dir from `clang`:
+    clang_cmd = [clang, '-print-resource-dir']
+    logging.debug("Running command: `%s`", shlex.join(clang_cmd))
+    result = subprocess.run(clang_cmd, capture_output=True, check=True)
+    clang_resource_dir = result.stdout.decode('utf-8').rstrip()
+    system_include_dir = os.path.join(clang_resource_dir, 'include')
+    logging.debug("Using system include dir: %s", system_include_dir)
+
+    # ----------------------------------------------------------------------
+    # Get $KALEIDOSCOPE_DIR from enironment, falling back on `pwd`:
+    kaleidoscope_dir = os.getenv('KALEIDOSCOPE_DIR')
+    if kaleidoscope_dir is None:
+        kaleidoscope_dir = os.getcwd()
+    logging.debug("Using Kaleidoscope dir: %s", kaleidoscope_dir)
+    kaleidoscope_src_dir = os.path.join(kaleidoscope_dir, 'src')
+
+    # Define locations of other dirs to find Arduino libraries:
+    virtual_hardware_dir = os.path.join(
+        kaleidoscope_dir, '.arduino', 'user', 'hardware', 'keyboardio', 'virtual')
+    logging.debug("Using virtual hardware dir: %s", virtual_hardware_dir)
+
+    virtual_arduino_core_dir = os.path.join(virtual_hardware_dir, 'cores', 'arduino')
+    logging.debug("Using virtual arduino core: %s", virtual_arduino_core_dir)
+
+    virtual_model01_dir = os.path.join(virtual_hardware_dir, 'variants', 'model01')
+    logging.debug("Using virtual Model01 dir: %s", virtual_model01_dir)
+
+    virtual_keyboardiohid_dir = os.path.join(
+        virtual_hardware_dir, 'libraries', 'KeyboardioHID', 'src')
+    logging.debug("Using virtual KeyboardioHID dir: %s", virtual_keyboardiohid_dir)
+
+    # ----------------------------------------------------------------------
+    # Create the long list of options passed to `clang` via `include-what-you-use`.
+    # First, we tell it we're using C++:
+    clang_opts = ['-x', 'c++']
+    # General compiler options:
+    clang_opts += [
+        '-c',
+        '-g',
+        '-Wall',
+        '-Wextra',
+        '-std=gnu++14',  # Not `c++14`, because we're using clang, not gcc
+        '-ffunction-sections',
+        '-fdata-sections',
+        '-fno-threadsafe-statics',
+        '-MMD',
+        '-Woverloaded-virtual',
+        '-Wno-unused-parameter',
+        '-Wno-unused-variable',
+        '-Wno-ignored-qualifiers',
+        '-Wno-type-limits',
+        '-Wno-pragma-once-outside-header',
+    ]
+
+    # Variables we define to do a Kaleidoscope build:
+    defines = [
+        'KALEIDOSCOPE_VIRTUAL_BUILD=1',
+        'KEYBOARDIOHID_BUILD_WITHOUT_HID=1',
+        'USBCON=dummy',
+        'ARDUINO_ARCH_AVR=1',
+        'ARDUINO=10607',
+        'ARDUINO_AVR_MODEL01',
+        'ARDUINO_ARCH_VIRTUAL',
+        'USB_VID=0x1209',
+        'USB_PID=0x2301',
+        'USB_MANUFACTURER="Keyboardio"',
+        'USB_PRODUCT="Model 01"',
+        'KALEIDOSCOPE_HARDWARE_H="Kaleidoscope-Hardware-Keyboardio-Model01.h"',
+        'TWI_BUFFER_LENGTH=32',
+    ]
+    clang_opts += ['-D' + _ for _ in defines]
+
+    # Directories to search for libraries to include:
+    includes = [
+        system_include_dir,
+        kaleidoscope_src_dir,
+        virtual_arduino_core_dir,
+        virtual_model01_dir,
+        virtual_keyboardiohid_dir,
+    ]
+    # Include plugin source dirs for plugins that depend on other plugins:
+    includes += glob.glob(os.path.join(kaleidoscope_dir, 'plugins', '*', 'src'))
+    # Include dirs specified on the command line, if any:
+    if opts.include_dirs:
+        includes += [os.path.abspath(_) for _ in opts.include_dirs]
+    clang_opts += ['-I' + _ for _ in includes]
+
+    # ----------------------------------------------------------------------
+    # Define the `include-what-you-use` command (sans target files)
+    iwyu_cmd = [iwyu] + iwyu_opts + clang_opts
+    logging.debug("Using IWYU command: %s", ' \\\n\t'.join(iwyu_cmd))
+
+    fix_includes_cmd = [
+        fix_includes,
+        '--nosafe_headers',
+        '--reorder',
+        '--separate_project_includes=' + kaleidoscope_src_dir,  # Does this help?
+    ]
+    if opts.update_comments:
+        fix_includes_cmd.append('--update_comments')
+    logging.debug("Using `fix_includes` command: %s", ' \\\n\t'.join(fix_includes_cmd))
+
+    # ----------------------------------------------------------------------
+    targets = opts.targets
+    # If stdin is a pipe, read pathname targets, one per line.  This allows us to connect the
+    # output of `find` to our input conveniently:
+    if not sys.stdin.isatty():
+        logging.debug("Reading targets from STDIN...")
+        targets += opts.input_splitter(sys.stdin.read())
+        for t in targets:
+            logging.debug("    Target path: %s", t)
+
+    # ----------------------------------------------------------------------
+    iwyu_ignores_file = os.path.join(kaleidoscope_dir, opts.ignores_file)
+    ignores = build_ignores_list(iwyu_ignores_file)
+
+    # ----------------------------------------------------------------------
+    regex = re.compile(opts.regex)
+    # Process source files first, then header files, because a source file might have been
+    # relying on a header included by its associated header, but which that header does not
+    # need on its own.  In this case, if we process the header first, IWYU won't be able to
+    # parse the source file, and we'll get an error, but if we do them in the other order,
+    # the source file will get all the includes it needs before the header removes any of them.
+    source_files = []
+    header_files = []
+    for target_file in (_ for t in targets for _ in build_target_list(t, regex, ignores)):
+        if target_file.endswith('.cpp') or target_file.endswith('.ino'):
+            source_files.append(target_file)
+        else:
+            header_files.append(target_file)
+
+    # If there's an error processing any file, return an error code.
+    exit_code = 0
+    for target_file in source_files + header_files:
+        # Run IWYU and fix_headers:
+        if not run_iwyu(os.path.relpath(target_file), iwyu_cmd, fix_includes_cmd):
+            exit_code = 1
+
+    return exit_code
+
+
+# ==============================================================================
+def build_target_list(target, regex, ignores):
+    """Build the list of target files, starting from a file or directory.
+
+    Parameters:
+        target (str): The name of the file or directory to search
+        regex (Pattern): A compiled regular expression to match target file names
+        ignores (list): A list of (absolute) file names to be excluded from the target list
+    Returns:
+        targets (list): A list of (absolute) file names to be processed
+
+    Given a filename or directory (`path`), returns a list of target filenames to run IWYU
+    on.  Target filenames will all be absolute, but `path` can be relative to the current
+    directory.  All target filenames will match `regex`, and any items in `ignores` will be
+    excluded.  If an element of the `ignores` list is a directory, all files and directories
+    beneath it will be excluded from the search.
+    """
+    logging.debug("Searching target: %s", target)
+
+    # Convert all paths to absolute.
+    root = os.path.abspath(target)
+
+    # If `path` is a file, and it matches `regex`, add it to the target list.
+    if os.path.isfile(target) and regex.search(target) and root not in ignores:
+        return [root]
+
+    # If the specified path is not valid, just return an empty list.
+    if not os.path.isdir(target):
+        logging.error("Error: File not found: %s", target)
+        return []
+
+    # Start with an empty list.
+    targets = []
+
+    # The specified path is a directory, so we search recursively for files
+    # contained therein that match the specified regular expression.
+    for path, dirs, files in os.walk(root):
+        logging.debug("Searching dir: %s", os.path.relpath(path))
+        # First, ignore all dotfiles (and directories).
+        for x in (os.path.basename(_)
+                  for _ in ignores + glob.glob(os.path.join(path, '.*'))
+                  if os.path.dirname(_) == path):
+            if x in dirs:
+                logging.info("Skipping ignored dir: %s", os.path.join(path, x))
+                dirs.remove(x)
+            if x in files:
+                logging.info("Skipping ignored file: %s", os.path.join(path, x))
+                files.remove(x)
+
+        logging.debug("Files found: %s", ', '.join(files))
+        # Add all matching files to the list of source files to be formatted.
+        for f in (_ for _ in files if regex.search(_)):
+            t = os.path.join(path, f)
+            logging.debug("Source file found: %s", t)
+            targets.append(t)
+
+    return targets
+
+
+# ==============================================================================
+def build_ignores_list(ignores_file_path):
+    """Build a list of files and dirs to exclude from processing by IWYU
+
+    Parameters:
+        ignores_file_path (str): The name of the file to read ignores globs from
+    Returns:
+        ignores_list (list): A list of (absolute) file names to exclude from processing
+
+    Reads `ignores_file` and expands each line as a glob, returning a list of all the target
+    file names to be excluded from processing.  Each path in the file is treated as a relative
+    pathname (unless it is already absolute), relative to the directory in which `ignores_file`
+    is located.
+    """
+    logging.debug("Searching for ignores file: %s", ignores_file_path)
+    # If the ignores file doesn't exist, return an empty list:
+    if not os.path.isfile(ignores_file_path):
+        logging.debug("Ignores file not found")
+        return []
+
+    ignores_list = []
+    with open(ignores_file_path) as f:
+        for line in f.read().splitlines():
+            # Lines starting with `#` are treated as comments.
+            if line.startswith('#'):
+                continue
+            logging.debug("Ignoring files like: %s", line)
+            ignores_list += glob.glob(line, recursive=True)
+
+    # Get the dir of the ignores file so we can construct absolute pathnames.
+    ignores_file_dir = os.path.dirname(ignores_file_path)
+    with cwd(ignores_file_dir):
+        ignores_list[:] = [os.path.abspath(_) for _ in ignores_list]
+
+    logging.debug("Ignores list:\n\t%s", "\n\t".join(ignores_list))
+    return ignores_list
+
+
+# ==============================================================================
+def run_iwyu(source_file, iwyu_cmd, fix_includes_cmd):
+    """Run IWYU and fix_includes on a single source file
+    
+    Parameters:
+        source_file (str): The name of a file to run IWYU on
+        iwyu_cmd (list): The command name and options list for `include-what-you-use`
+        fix_includes_cmd (list): The command name and options list for `fix_headers.py`
+    Returns:
+        True on success, False if either IWYU or fix_headers returns an error code
+    
+    Run `include-what-you-use` on <source_file>, an update that file's header includes by
+    sending the output to `fix_includes.py`.  If either command returns an error code, return
+    `False`, otherwise return `True`.
+    """
+    logging.info("Fixing headers in file: %s", source_file)
+
+    # Run IWYU on <source_file>
+    iwyu_proc = subprocess.run(iwyu_cmd + [source_file], capture_output=True, check=False)
+
+    # If IWYU returns an error, report on it:
+    if iwyu_proc.returncode != 0:
+        logging.error("Error: failed to parse file: %s", source_file)
+        logging.debug("IWYU returned: %s", iwyu_proc.returncode)
+        logging.debug("STDOUT:\n%s", iwyu_proc.stdout.decode('utf-8'))
+        logging.debug("STDERR:\n%s", iwyu_proc.stderr.decode('utf-8'))
+        # In addition to reporting the error, save the output for analysis:
+        with open(source_file + '.iwyu', 'wb') as f:
+            f.write(iwyu_proc.stderr)
+        # Don't run fix_includes if there was an error (or if we've got an old version of IWYU
+        # that returns bogus exit codes):
+        return False
+
+    # IWYU reports on the associated header of *.cpp files, but if we want to skip processing
+    # that header, we need to use only the part of the output for the *.cpp file.  Fortunately,
+    # the header is listed first, so we only need to search for the start of the target file's
+    # section of the output.
+    n = iwyu_proc.stderr.find(f"\n{source_file} should".encode('utf-8'))
+    iwyu_stderr = iwyu_proc.stderr[n:]
+
+    # Run fix_includes.py, using the output (stderr) of IWYU:
+    fix_includes_proc = subprocess.run(
+        fix_includes_cmd, input=iwyu_stderr, capture_output=True, check=False)
+
+    # Report any errors returned by fix_includes.py:
+    if fix_includes_proc.returncode != 0:
+        logging.error("Error: failed to fix includes for file: %s", source_file)
+        logging.debug("fix_includes.py returned: %s", fix_includes_proc.returncode)
+        logging.debug("STDOUT:\n%s", fix_includes_proc.stdout.decode('utf-8'))
+        logging.debug("STDERR:\n%s", fix_includes_proc.stderr.decode('utf-8'))
+        return False
+
+    # Return true on success, false otherwise:
+    return True
+
+
+# ==============================================================================
+if __name__ == "__main__":
+    try:
+        sys.exit(main())
+    except KeyboardInterrupt:
+        logging.info("Aborting")
+        sys.exit(1)

bin/kaleidoscope-builder

@@ -1,738 +0,0 @@
-#!/usr/bin/env bash
-# kaleidoscope-builder - Kaleidoscope helper tool
-# Copyright (C) 2017-2018  Keyboard.io, Inc.
-#
-# This program is free software: you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free Software
-# Foundation, version 3.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program. If not, see <http://www.gnu.org/licenses/>.
-
-set -e
-
-######
-###### Build and output configuration
-######
-
-absolute_filename() {
-    echo "$(cd "$(dirname "$1")" && pwd)/$(basename "$1")"
-}
-
-
-
-build_version () {
-    : "${LIB_PROPERTIES_PATH:="../.."}"
-    GIT_VERSION="$(cd "${SKETCH_DIR}"; if [ -d .git ]; then echo -n '-g' && git describe --abbrev=4 --dirty --always; fi)"
-    LIB_VERSION="$(cd "${SKETCH_DIR}"; (grep version= "${LIB_PROPERTIES_PATH}/library.properties" 2>/dev/null || echo version=0.0.0) | cut -d= -f2)${GIT_VERSION}"
-}
-
-build_paths() {
-    # We need that echo because we\re piping to cksum
-    # shellcheck disable=SC2005
-    SKETCH_IDENTIFIER="$(echo "${SKETCH_FILE_PATH}" | cksum | cut -d ' ' -f 1)-${SKETCH_FILE_NAME}"
-    : "${KALEIDOSCOPE_TEMP_PATH:=${TMPDIR:-/tmp}/kaleidoscope-${USER}}"
-
-    : "${KALEIDOSCOPE_BUILD_PATH:=${KALEIDOSCOPE_TEMP_PATH}/sketch}"
-    : "${KALEIDOSCOPE_OUTPUT_PATH:=${KALEIDOSCOPE_TEMP_PATH}/sketch}"
-
-    : "${SKETCH_OUTPUT_DIR:=${SKETCH_IDENTIFIER}/output}"
-    : "${SKETCH_BUILD_DIR:=${SKETCH_IDENTIFIER}/build}"
-
-    : "${BUILD_PATH:=${KALEIDOSCOPE_BUILD_PATH}/${SKETCH_BUILD_DIR}}"
-    : "${OUTPUT_PATH:=${KALEIDOSCOPE_OUTPUT_PATH}/${SKETCH_OUTPUT_DIR}}"
-
-    : "${CCACHE_WRAPPER_PATH:=${KALEIDOSCOPE_TEMP_PATH}/ccache/bin}"
-    : "${CORE_CACHE_PATH:=${KALEIDOSCOPE_TEMP_PATH}/arduino-cores}"
-
-    mkdir -p "$CORE_CACHE_PATH"
-    mkdir -p "$BUILD_PATH"
-}
-
-build_filenames () {
-    : "${OUTPUT_FILE_PREFIX:=${SKETCH_BASE_NAME}-${LIB_VERSION}}"
-    : "${HEX_FILE_PATH:=${OUTPUT_PATH}/${OUTPUT_FILE_PREFIX}.hex}"
-    : "${HEX_FILE_WITH_BOOTLOADER_PATH:=${OUTPUT_PATH}/${OUTPUT_FILE_PREFIX}-with-bootloader.hex}"
-    : "${ELF_FILE_PATH:=${OUTPUT_PATH}/${OUTPUT_FILE_PREFIX}.elf}"
-    : "${LIB_FILE_PATH:=${OUTPUT_PATH}/${OUTPUT_FILE_PREFIX}.a}"
-}
-
-
-enable_ccache () {
-    if [ -z "${CCACHE_NOT_SUPPORTED}" ] && [ "$(command -v ccache)" ]; then
-      if ! [ -d "$CCACHE_WRAPPER_PATH" ]; then
-         mkdir -p "$CCACHE_WRAPPER_PATH"
-
-          if ! [ -h "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}${C_COMPILER_BASENAME}" ]; then
-             ln -s "$(command -v ccache)" "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}${C_COMPILER_BASENAME}"
-          fi
-    
-          if ! [ -h "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}${CXX_COMPILER_BASENAME}" ]; then
-             ln -s "$(command -v ccache)" "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}${CXX_COMPILER_BASENAME}"
-          fi
-    
-          if ! [ -h "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}nm" ]; then
-             ln -s "${AVR_NM}" "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}nm"
-          fi
-    
-          if ! [ -h "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}objcopy" ]; then
-             ln -s "${AVR_OBJCOPY}" "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}objcopy"
-          fi
-    
-          if ! [ -h "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}ar" ]; then
-             ln -s "${AVR_AR}" "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}ar"
-          fi
-    
-          if ! [ -h "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}size" ]; then
-             ln -s "${AVR_SIZE}" "${CCACHE_WRAPPER_PATH}/${COMPILER_PREFIX}size"
-          fi
-      fi
-
-      export CCACHE_PATH=${COMPILER_PATH}/
-      CCACHE_ENABLE="-prefs compiler.path=${CCACHE_WRAPPER_PATH}/"
-    fi
-}
-
-
-firmware_size () {
-    if [ "${ARCH}" = "virtual" ]; then
-        echo "[Size not computed for virtual build]"
-        return
-    fi
-
-    : "${MAX_PROG_SIZE:=$(get_arduino_pref 'upload.maximum_size')}"
-
-    ## This is a terrible hack, please don't hurt me. - algernon
-
-    set +e
-    raw_output=$("$@" 2> /dev/null)
-    rc=$?
-    set -e
-
-    if [ $rc -eq 0 ]; then
-        output="$(echo "${raw_output}"| grep "\\(Program\\|Data\\):" | sed -e 's,^,  - ,' && echo)"
-
-        PROGSIZE="$(echo "${output}" | grep "Program:" | cut -d: -f2 | awk '{print $1}')"
-
-        PERCENT="$(echo "${PROGSIZE}" "${MAX_PROG_SIZE}" | awk "{ printf \"%02.01f\", \$1 / \$2 * 100 }")"
-
-        # we want the sed there, doing with shell builtins would be worse.
-        # shellcheck disable=SC2001 disable=SC1117
-        echo "${output}" | sed -e "s/\(Program:.*\)(\([0-9\.]*%\) Full)/\1(${PERCENT}% Full)/"
-    else
-        echo "Unable to determine image size."
-    fi
-}
-
-
-find_sketch () {
-    if [ -z "${SKETCH}" ]; then
-        echo "SKETCH needs to be set before including this file!" >&2
-        exit 1
-    fi
-  
-    SKETCH_DIR="${SKETCH}"
-    SKETCH_BASE_NAME=$(basename "$SKETCH")
-    SKETCH_FILE_NAME="${SKETCH_BASE_NAME}.ino"
-
-    for path in "${SKETCH_DIR}" \
-                    "src" \
-		    "."; do
-        if [ -f "${path}/${SKETCH_FILE_NAME}" ]; then
-      	    SKETCH_DIR="${path}"
-      	    SKETCH_FILE_PATH=$(absolute_filename "${SKETCH_DIR}/${SKETCH_FILE_NAME}")
-            return
-        fi
-    done
-    echo "I couldn't find your sketch (.ino file)" >&2
-    exit 1
-}
-
-
-
-prompt_before_flashing () {
-    flashing_instructions=$(get_arduino_pref 'build.flashing_instructions')
-
-    if [ "x${flashing_instructions}x" = "xx" ]; then
-	flashing_instructions="If your keyboard needs you to do something to put it in flashing mode, do that now."
-    fi
-
-    printf '%b\n\n' "${flashing_instructions}"
-    echo ""
-    echo "When you're ready to proceed, press 'Enter'."
-
-    # We do not want to permit line continuations here. We just want a newline.
-    # shellcheck disable=SC2162
-    read
-}
-
-flash () {
-    compile "$@"
-
-    # Check to see if we can see a keyboard bootloader port.
-    # If we -can-, then we should skip over the "reset to bootloader" thing
-    find_bootloader_ports
-    if [ -z "${DEVICE_PORT_BOOTLOADER}" ]; then
-        prompt_before_flashing
-
-        # This is defined in the (optional) user config.
-        # shellcheck disable=SC2154
-        ${preFlash_HOOKS}
-
-	# If we're -not- doing a manual reset, then try to do it automatically
-        if [ -z "${MANUAL_RESET}" ]; then
-            reset_device
-            sleep 2
-            find_bootloader_ports
-	# Otherwise, poll for a bootloader port.
-        else
-           wait_for_bootloader_port
-        fi
-
-    fi
-
-    check_bootloader_port_and_flash
-
-    # This is defined in the (optional) user config.
-    # shellcheck disable=SC2154
-    ${postFlash_HOOKS}
-}
-
-wait_for_bootloader_port() {
-    declare -i tries
-    tries=15
-
-    while [ "$tries" -gt 0 ] && [ -z "${DEVICE_PORT_BOOTLOADER}" ]; do
-        sleep 1
-        printf "."
-        find_bootloader_ports
-        # the variable annotations do appear to be necessary
-        # shellcheck disable=SC2004
-        tries=$(($tries-1))
-    done
-
-    if [ "$tries" -gt 0 ]; then
-        echo "Found."
-    else
-        echo "Timed out."
-    fi
-}
-
-check_bootloader_port () {
-    if [ -z "${DEVICE_PORT_BOOTLOADER}" ]; then
-        echo "Unable to detect a keyboard in bootloader mode."
-	echo "You may need to hold a key or hit a reset button."
-	echo "Please check your keyboard's documentation"
-        return 1
-    fi
-
-}
-
-check_bootloader_port_and_flash () {
-
-    if ! check_bootloader_port; then
-        return 1
-    fi
-
-    echo "Flashing your keyboard:"
-
-    # If the flash fails, try a second time
-    if ! flash_over_usb; then
-        sleep 2
-        if  ! flash_over_usb; then
-            if [ "${ARDUINO_VERBOSE}" != "-verbose" ]; then
-                echo "Something went wrong."
-    	        echo "You might want to try flashing again with the VERBOSE environment variable set"
-            fi
-
-            return 1
-        fi
-    fi
-    echo "Keyboard flashed successfully!"
-    return 0
-}
-
-flash_over_usb () {
-
-    FLASH_CMD=$(${AVRDUDE} \
-		-C "${AVRDUDE_CONF}" \
-		-p"${MCU}" \
- 		-cavr109 \
-		-D \
-		-P "${DEVICE_PORT_BOOTLOADER}" \
-		-b57600 \
-		"-Uflash:w:${HEX_FILE_PATH}:i")
-
-    if [ "${ARDUINO_VERBOSE}" != "-verbose" ]; then
-	${FLASH_CMD} 2>&1 |grep -v ^avrdude | grep -v '^$' |grep -v '^ ' | grep -vi programmer
-    	return "${PIPESTATUS[0]}"
-    else
-        ${FLASH_CMD}
-	return $?
-    fi
-}
-
-flash_from_bootloader() {
-    compile "$@"
-    prompt_before_flashing
-    find_bootloader_ports
-    check_bootloader_port_and_flash
-}
-
-program() {
-    compile "$@"
-    prompt_before_flashing
-    flash_with_programmer
-}
-
-flash_with_programmer() {
-    ${AVRDUDE} -v \
-	       -C "${AVRDUDE_CONF}" \
-	       -p"${MCU}" \
-	       -cusbtiny \
-	       -D \
-	       -B 1 \
-	       "-Uflash:w:${HEX_FILE_PATH}:i"
-}
-
-find_bootloader_path() {
-    BOOTLOADER_FILE=$( get_arduino_pref 'bootloader.file' )
-    : "${BOOTLOADER_FILE:=caterina/Caterina.hex}"
-    : "${BOOTLOADER_PATH:=${BOARD_HARDWARE_PATH}/keyboardio/avr/bootloaders/${BOOTLOADER_FILE}}"
-}
-
-
-hex_with_bootloader () {
-    compile
-
-    find_bootloader_path
-
-    awk '/^:00000001FF/ == 0' "${HEX_FILE_PATH}" > "${HEX_FILE_WITH_BOOTLOADER_PATH}"
-    echo "Using ${BOOTLOADER_PATH}"
-    ${MD5} "${BOOTLOADER_PATH}"
-    cat "${BOOTLOADER_PATH}" >> "${HEX_FILE_WITH_BOOTLOADER_PATH}"
-    ln -sf -- "${OUTPUT_FILE_PREFIX}-with-bootloader.hex" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest-with-bootloader.hex"
-    cat <<- EOF
-
-		Combined firmware and bootloader are now at ${HEX_FILE_WITH_BOOTLOADER_PATH}
-		Make sure you have the bootloader version you expect.
-
-		And TEST THIS ON REAL HARDWARE BEFORE YOU GIVE IT TO ANYONE
-
-		EOF
-}
-
-build () {
-    compile "$@"
-    size "$@"
-}
-
-
-prepare_ccache () {
-    build_paths
-    enable_ccache
-}
-compile () {
-    find_sketch
-    build_version
-    build_paths
-    build_filenames
-    # If the hex file is older than the sketch file, or the hex file does not exist
-    # then rebuild. This is not as correct as letting make check our dependencies
-    # But it's less broken for most user use cases
-    # TODO(anyone): Make this suck less
-    if [ "${HEX_FILE_PATH}" -ot "${SKETCH_FILE_PATH}" ]; then
-	do_compile "$@"
-    fi
-
-}
-
-
-do_compile () {
-    prepare_ccache
-
-    install -d "${OUTPUT_PATH}"
-
-    echo "Building ${SKETCH_FILE_PATH}"
-
-    # This is defined in the (optional) user config.
-    # shellcheck disable=SC2154
-    ${compile_HOOKS}
-
-    if [ -d "${ARDUINO_LOCAL_LIB_PATH}/libraries" ]; then
-        # shellcheck disable=SC2089
-        # We want literal backslashes here, not arrays.
-        local_LIBS="-libraries \"${ARDUINO_LOCAL_LIB_PATH}/libraries\""
-    fi
-
-    ARDUINO_PACKAGES=""
-    if [ -d "${ARDUINO_PACKAGE_PATH}" ]; then
-        # shellcheck disable=SC2089
-        # We want literal backslashes here, not arrays.
-	      ARDUINO_PACKAGES="-hardware \"${ARDUINO_PACKAGE_PATH}\""
-    fi
-
-    SAVED_BOARD="${BOARD}"
-    SAVED_FQBN="${FQBN}"
-    if [ -e "${SKETCH_DIR}/.kaleidoscope-builder.conf" ]; then
-        # shellcheck disable=SC1090
-        BOARD="$(. "${SKETCH_DIR}"/.kaleidoscope-builder.conf && echo "${BOARD}")"
-        # shellcheck disable=SC1090
-        FQBN="$(. "${SKETCH_DIR}"/.kaleidoscope-builder.conf && echo "${FQBN}")"
-        if [ -n "${BOARD}" ]; then
-            if [ -z "${ARCH}" ]; then
-               FQBN="keyboardio:avr:${BOARD}"
-            else
-               FQBN="keyboardio:${ARCH}:${BOARD}"
-            fi
-        fi
-    fi
-
-    _CMD_CXX="${CXX:-${COMPILER_PREFIX}${CXX_COMPILER_BASENAME}${COMPILER_SUFFIX}}"
-    _CMD_CC="${CC:-${COMPILER_PREFIX}${C_COMPILER_BASENAME}${COMPILER_SUFFIX}}"
-    _CMD_AR="${AR:-${COMPILER_PREFIX}${AR_BASENAME}${COMPILER_SUFFIX}}"
-
-    # SC2091: We do not care if quotes or backslashes are not respected.
-    # SC2086: We want word splitting.
-    # shellcheck disable=SC2086,SC2090
-    "${ARDUINO_BUILDER}" \
-        -compile \
-	      ${ARDUINO_PACKAGES} \
-	      -hardware "${ARDUINO_PATH}/hardware" \
-	      -hardware "${BOARD_HARDWARE_PATH}" \
-	      ${ARDUINO_TOOLS_FLAG:+"${ARDUINO_TOOLS_FLAG}"} ${ARDUINO_TOOLS_PARAM:+"${ARDUINO_TOOLS_PARAM}"} \
-	      -tools "${ARDUINO_BUILDER_TOOLS_PATH}" \
-	      -fqbn "${FQBN}" \
-        -libraries "." \
-        -libraries "${KALEIDOSCOPE_DIR}" \
-	      -libraries "${BOARD_HARDWARE_PATH}/.." \
-        ${local_LIBS} \
-	      ${EXTRA_BUILDER_ARGS} \
-	      -build-cache "${CORE_CACHE_PATH}" \
-	      -build-path "${BUILD_PATH}" \
-	      -ide-version "${ARDUINO_IDE_VERSION}" \
-	      -built-in-libraries "${ARDUINO_PATH}/libraries" \
-	      -prefs "compiler.cpp.extra_flags=${ARDUINO_CFLAGS} ${LOCAL_CFLAGS}" \
-	      -prefs "compiler.path=${COMPILER_PATH}" \
-	      -prefs "compiler.c.cmd=${_CMD_CC}" \
-	      -prefs "compiler.cpp.cmd=${_CMD_CXX}" \
-        -prefs "compiler.ar.cmd=${_CMD_AR}" \
-        -prefs "compiler.c.elf.cmd=${_CMD_CXX}" \
-	      $CCACHE_ENABLE \
-	      -warnings all \
-        ${ARDUINO_VERBOSE} \
-	      ${ARDUINO_AVR_GCC_PREFIX_PARAM} \
-	      "${SKETCH_FILE_PATH}"
-
-    if [ -z "${LIBONLY}" ]; then
-      cp "${BUILD_PATH}/${SKETCH_FILE_NAME}.hex" "${HEX_FILE_PATH}"
-      cp "${BUILD_PATH}/${SKETCH_FILE_NAME}.elf" "${ELF_FILE_PATH}"
-      ln -sf "${OUTPUT_FILE_PREFIX}.hex" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest.hex"
-      ln -sf "${OUTPUT_FILE_PREFIX}.elf" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest.elf"
-    else
-      cp "${BUILD_PATH}/${SKETCH_FILE_NAME}.a" "${LIB_FILE_PATH}"
-      ln -sf "${OUTPUT_FILE_PREFIX}.a" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest.a"
-    fi
-
-    if [ "${ARDUINO_VERBOSE}" = "-verbose" ]; then
-      echo "Build artifacts can be found in ${BUILD_PATH}";
-    fi
-
-    BOARD="${SAVED_BOARD}"
-    FQBN="${SAVED_FQBN}"
-}
-
-find_all_sketches () {
-    for plugin in ./*.ino \
-  	              $([ -d examples ] && find examples -name '*.ino') \
-                  src/*.ino; do
-        if [ -d "$(dirname "${plugin}")" ] || [ -f "${plugin}" ]; then
-            p="$(basename "${plugin}" .ino)"
-            if [ "${p}" != '*' ]; then
-                case "${plugin}" in
-                    examples/*/${p}/${p}.ino)
-                        echo "${plugin}" | sed -e "s,examples/,," | sed -e "s,/${p}\\.ino,,"
-                        ;;
-                    *)
-                        echo "${p}"
-                        ;;
-                esac
-            fi
-        fi
-    done | sort
-}
-
-build_all () {
-    plugins="$(find_all_sketches)"
-
-    for plugin in ${plugins}; do
-        export SKETCH="${plugin}"
-        $0 "${plugin}" build
-    done
-}
-
-
-compile_all () {
-    plugins="$(find_all_sketches)"
-
-    for plugin in ${plugins}; do
-        export SKETCH="${plugin}"
-        $0 "${plugin}" compile
-    done
-}
-
-
-size () {
-    compile
-
-    echo "- Size: ${ELF_FILE_PATH}"
-    # shellcheck disable=SC2086
-    firmware_size "${AVR_SIZE}" ${AVR_SIZE_FLAGS} "${ELF_FILE_PATH}"
-    echo
-}
-
-size_map () {
-    compile
-
-    "${AVR_NM}" --size-sort -C -r -l -t decimal "${ELF_FILE_PATH}"
-}
-
-disassemble () {
-    compile
-
-    "${AVR_OBJDUMP}" -C -d "${ELF_FILE_PATH}"
-}
-
-decompile () {
-    disassemble
-}
-
-clean () {
-    find_sketch
-    build_paths
-    rm -rf -- "${OUTPUT_PATH}"
-    rm -rf -- "${BUILD_PATH}"
-    kaleidoscope_dir="$(dirname "$0")/.."
-    if [ -d "${kaleidoscope_dir}/testing/googletest/build" ]; then
-         ( cd "${kaleidoscope_dir}/testing/googletest/build" &&
-         cmake .. &&
-         make clean)
-    fi
-}
-
-reset_device() {
-    find_device_port
-    check_device_port
-    reset_device_cmd
-}
-
-check_device_port () {
-    if [ -z "$DEVICE_PORT" ]; then
-        cat <<EOF >&2
-
-I couldn't autodetect the keyboard's serial port.
-
-If you see this message and your keyboard is connected to your computer,
-it may mean that our serial port detection logic is buggy or incomplete.
-In that case, please report this issue at:
-	 https://github.com/keyboardio/Kaleidoscope
-EOF
-        exit 1
-    elif echo "$DEVICE_PORT" | grep -q '[[:space:]]'; then
-        cat <<EOF >&2
-Unexpected whitespace found in detected serial port:
-
-    $DEVICE_PORT
-
-If you see this message, it means that our serial port
-detection logic is buggy or incomplete.
-
-Please report this issue at:
-	 https://github.com/keyboardio/Kaleidoscope
-EOF
-        exit 1
-    fi
-
-    if ! [ -w "$DEVICE_PORT" ]; then
-        cat <<EOF >&2
-
-In order to update your keyboard's firmware you need to have permission
-to write to its serial port $DEVICE_PORT.
-
-It appears that you do not have this permission:
-
-  $(ls -l "$DEVICE_PORT")
-
-This may be because you're not in the correct unix group:
-
-  $(stat -c %G "$DEVICE_PORT").
-
-You are currently in the following groups:
-
-  $(id -Gn)
-
-Please ensure you have followed the instructions on setting up your
-account to be in the right group:
-
-https://github.com/keyboardio/Kaleidoscope/wiki/Install-Arduino-support-on-Linux
-
-EOF
-        exit 1
-    fi
-}
-
-
-deprecation_message() {
-echo "kaleidoscope-builder is deprecated and will be removed"
-echo "by February 15, 2021"
-echo ""
-echo "To switch to the new build system, replace your sketch's"
-echo "Makefile with a copy of:"
-echo ""
-echo "${KALEIDOSCOPE_DIR}/etc/Makefile.sketch"
-echo ""
-}
-
-usage () {
-    cat <<- EOF
-		Usage: $0 SKETCH commands...
-
-		Runs all of the commands in the context of the Sketch.
-
-		Available commands:
-
-		  help
-		    This help screen.
-
-		  compile
-		    Compiles the sketch.
-
-		  size
-		    Reports the size of the compiled sketch.
-
-		  build
-		    Runs compile and report-size.
-
-		  clean
-		    Cleans up the output directory.
-
-		  size-map
-		    Displays the size map for the sketch.
-
-		  disassemble
-		    Decompile the sketch.
-
-		  reset-device
-		    Reset the device.
-
-		  flash
-		    Flashes the firmware using avrdude.
-
-		  build-all
-		    Build all Sketches we can find.
-
-		EOF
-}
-
-
-KALEIDOSCOPE_DIR="$(cd "$(dirname "$0")"/..; pwd)"
-# shellcheck disable=SC2034
-KALEIDOSCOPE_BIN_DIR="${KALEIDOSCOPE_DIR}/bin/"
-
-
-help () {
-    usage
-}
-
-if [ $# -lt 1 ]; then
-    usage
-    exit 1
-fi
-
-## Parse the command-line
-##  - anything that has a =, is an env var
-##  - from the remaining stuff, the first one is the Library/Sketch
-##  - everything else are commands
-##
-##  - if there is only one argument, that's a command
-
-
-deprecation_message
-
-
-# shellcheck disable=SC2155
-export SOURCEDIR="$(pwd)"
-
-
-for conf_file in \
-    "${HOME}/.kaleidoscope-builder.conf" \
-    "${SOURCEDIR}/.kaleidoscope-builder.conf" \
-    "${SOURCEDIR}/kaleidoscope-builder.conf" \
-    "${KALEIDOSCOPE_DIR}/etc/kaleidoscope-builder.conf"; do
-    if [ -e "${conf_file}" ]; then
-        # shellcheck disable=SC1090
-        . "${conf_file}"
-    fi
-
-done
-
-# shellcheck disable=SC1090
-
-
-if [ -n "${VERBOSE}" ] && [[ "${VERBOSE}" -gt 0 ]]; then
-    ARDUINO_VERBOSE="-verbose"
-else
-    ARDUINO_VERBOSE="-quiet"
-fi
-
-cmds=""
-
-## Export vars
-for i in $(seq 1 $#); do
-    v="$1"
-    shift
-
-    case "${v}" in
-        *=*)
-            # Exporting an expansion is *precisely* what we want here.
-            # shellcheck disable=SC2086,SC2163
-            export ${v}
-            ;;
-        *)
-            cmds="${cmds} ${v}"
-            ;;
-    esac
-done
-
-# Word splitting is desired here.
-# shellcheck disable=SC2086
-set -- ${cmds}
-
-if [ $# -eq 1 ]; then
-    cmd="$(echo "$1" | tr '-' '_')"
-    ${cmd}
-    exit $?
-fi
-
-SKETCH="$1"
-shift
-
-if [ "${SKETCH}" = "default" ]; then
-    SKETCH="${DEFAULT_SKETCH}"
-fi
-
-cmds=""
-
-# shellcheck disable=2034
-for i in $(seq 1 $#); do
-    cmds="${cmds} $(echo "$1" | tr '-' '_')"
-    shift
-done
-
-for cmd in ${cmds}; do
-    ${cmd}
-done

bin/run-docker

@@ -19,13 +19,28 @@ else
     ARDUINO_LOCAL_LIB_PATH="${ARDUINO_LOCAL_LIB_PATH:-${HOME}/Arduino}"
 fi
 
-echo "Preparing Kaleidoscope and the bundle..."
+
+if [ ! -d ./.arduino/user/hardware ]; then
+	echo "Running tests in Docker requires that your Arduino environment be installed in .arduino inside the top-level Kaleidoscope directory. To set this up, run 'make setup'"
+  exit 1
+fi
+
+
 
 XFER_DIR="$(pwd)/.docker_xfer"
 mkdir -p "${XFER_DIR}"
 
+if [ -z "$_NO_SYNC_KALEIDOSCOPE" ]; then 
+
+echo "Preparing Kaleidoscope..."
+
+
+echo "The bundle is coming from ${ARDUINO_DIRECTORIES_USER}/hardware/keyboardio"
 tar  -cf "${XFER_DIR}/kaleidoscope.tar"  \
 	--exclude .arduino/data \
+	--exclude .arduino/downloads \
+	--exclude .arduino/user/hardware/keyboardio/avr/libraries/Kaleidoscope \
+	--exclude .arduino/user/hardware/keyboardio/gd32/libraries/Kaleidoscope \
 	--exclude bin/arduino-cli \
 	--exclude .docker_xfer \
 	--exclude .git \
@@ -33,22 +48,29 @@ tar  -cf "${XFER_DIR}/kaleidoscope.tar"  \
 	--exclude testing/googletest/build  \
 	.
 
-echo "The bundle is coming from ${ARDUINO_DIRECTORIES_USER}/hardware/keyboardio"
+fi
-(cd "${ARDUINO_DIRECTORIES_USER}/hardware/keyboardio" && tar  -cf "${XFER_DIR}/bundle.tar" \
+
-	--exclude .git --exclude avr/libraries/Kaleidoscope .)
+if [ -z "$DOCKER_LIVE_KALEIDOSCOPE_DIR" ]; then 
+	_KALEIDOSCOPE_MOUNT="--mount type=tmpfs,destination=/kaleidoscope:exec"
+else
+	echo "Kaleidoscope is mounted read/write inside docker"
+	_KALEIDOSCOPE_MOUNT="-v $(pwd):/kaleidoscope:"
+fi
+
 
-echo "Building the docker image..."
+echo "Building the docker image. This could take a few minutes."
 docker build -q -t kaleidoscope/docker etc
 # We do want word splitting since there are multiple options here
 # shellcheck disable=SC2086   
 docker run --rm $DOCKER_RUN_INTERACTIVE_OPTS \
-       --mount type=tmpfs,destination=/kaleidoscope:exec \
+       ${_KALEIDOSCOPE_MOUNT} \
        --mount type=bind,source="${XFER_DIR}",destination=/kaleidoscope-src,consistency=delegated,readonly \
        --mount type=volume,source=kaleidoscope-persist,destination=/kaleidoscope-persist,consistency=delegated \
        --mount type=volume,source=kaleidoscope-googletest-build,destination=/kaleidoscope/testing/googletest/build,consistency=delegated \
        --mount type=volume,source=kaleidoscope-build,destination=/kaleidoscope/_build,consistency=delegated \
        --env ARDUINO_DIRECTORIES_DATA=/arduino-cli/data \
        --env ARDUINO_DIRECTORIES_USER=/kaleidoscope/.arduino/user/ \
+       --env _NO_SYNC_KALEIDOSCOPE=${_NO_SYNC_KALEIDOSCOPE} \
        kaleidoscope/docker "$*"
 
 

bin/set-timestamps-from-git

@@ -1,15 +0,0 @@
-#!/bin/bash -e
-
-# This script sets all of the files inside src and example to have mtimes
-# that match the times of the last git commit that touched each file
-
-# This can be useful when build tools depend on file timestamps to
-# make caching decisions
-
-find src examples -type f -exec sh -c '
-  timestamp=$(git log --pretty=format:%ad --date=format:%Y%m%d%H%M.%S -n 1 HEAD "$1" 2> /dev/null)
-  if [ "x$timestamp" != "x" ]; then
-    touch -t "$timestamp" "$1"
-  fi
-' sh {} \;
-

docs/NEWS.md

@@ -12,6 +12,108 @@ See [UPGRADING.md](UPGRADING.md) for more detailed instructions about upgrading
 
 ## New features
 
+### OneShot public functions
+
+The OneShot plugin now allows other plugins to control the OneShot state of
+individual keys, by calling one of the following:
+
+- `OneShot.setPending(key_addr)`: Put the key at `key_addr` in the "pending"
+  OneShot state.  This will make that key act like any other OneShot key until
+  it is cancelled by a subsequent keypress.  Once a key is in this state,
+  OneShot will manage it from that point on, including making the key "sticky"
+  if it is double-tapped.
+- `OneShot.setSticky(key_addr)`: Put the key at `key_addr` in the "sticky"
+  OneShot state.  The key will be released by OneShot when it is tapped again.
+- `OneShot.setOneShot(key_addr)`: Put the key at `key_addr` in the "one-shot"
+  state.  This is normally the state OneShot key will be in after it has been
+  tapped.  Calling `setPending()` is more likely to be useful.
+- `OneShot.clear(key_addr)`: Clear the OneShot state of the key at `key_addr`.
+
+Note: Any plugin that calls one of these OneShot methods must either be
+registered in `KALEIDOSCOPE_INIT_PLUGINS()` after OneShot, or it must add the
+`INJECTED` bit to the keyswitch state of the event (i.e. `event.state |=
+INJECTED`) to prevent OneShot from prematurely advancing keys to the next
+OneShot state.
+
+### SpaceCadet "no-delay" mode
+
+SpaceCadet can now be enabled in "no-delay" mode, wherein the primary (modifier)
+value of the key will be sent to the host immediately when the key is pressed.
+If the SpaceCadet key is released before the timeout, the modifier is released,
+and then the alternate (symbol) value is sent.  To activate "no-delay" mode, call `SpaceCadet.enableWithoutDelay()`.
+
+### New Qukeys features
+
+#### Tap-repeat
+
+It is now possible to get the "tap" value of a qukey to repeat (as if that key
+for that character was simply being held down on a normal keyboard) by tapping
+the qukey, then quickly pressing and holding it down. The result on the OS will
+be as if the key was pressed and held just once, so that users of macOS apps
+that use the Cocoa input system can get the menu for characters with diacritics
+without an extra character in the output.
+
+The maximum interval between the two keypresses that will trigger a tap repeat
+can be configured via the `Qukeys.setMaxIntervalForTapRepeat(ms)` function,
+where the argument specifies the number of milliseconds Qukeys will wait after a
+qukey is tapped for it to be pressed a second time. If it is, but the qukey is
+released within that same interval from the first tap's release, it will be
+treated as a double-tap, and both taps will be sent to the OS.
+
+### New OneShot features
+
+#### Auto-OneShot modifiers & layers
+
+OneShot can now treat modifiers and layer-shift keys as automatic OneShot
+keys. This includes modifiers with other modifier flags applied, so it is now
+very simple to turn `Key_Meh` or `Key_Hyper` into a OneShot key. The feature is
+controlled by the following new functions:
+
+- `OneShot.toggleAutoModifiers()`: Turn auto-OneShot modifiers on or off.
+- `OneShot.toggleAutoLayers()`: Turn auto-OneShot layer shifts on or off.
+- `OneShot.toggleAutoOneShot()`: Both of the above.
+
+There are also `enable` and `disable` versions of these functions.
+
+Note, it is still possible to define a modifier key in the keymap that will not
+automatically become a OneShot key when pressed, by applying modifier flags to
+`Key_NoKey` (e.g. `LSHIFT(Key_NoKey)`).
+
+#### Two new special OneShot keys
+
+OneShot can now also turn _any_ key into a sticky key, using either of two
+special `Key` values that can be inserted in the keymap.
+
+##### `OneShot_MetaStickyKey`
+
+This is a special OneShot key (it behaves like other OneShot keys), but its
+effect is to make any key pressed while it is active sticky. Press
+`OneShot_MetaStickyKey`, then press `X`, and `X` will become sticky. Sticky
+keys can be deactivated just like other OneShot keys, by pressing them
+again. This works for any key value, so use it with caution.
+
+##### `OneShot_ActiveStickyKey`
+
+Like `OneShot_ActiveStickyKey`, this key makes other keys sticky, but rather than
+affecting a subsequent key, it affects any keys already held when it is
+pressed. Press `X`, press `OneShot_ActiveStickyKey`, and release `X`, and `X`
+will be sticky until it is pressed again to deactivate it. Again, it works on
+any key value, so use with caution.
+
+#### LED-ActiveModColor highlighting
+
+With the updates to OneShot, LED-ActiveModColor now recognizes and highlights
+OneShot keys in three different states (along with normal modifiers):
+
+- one-shot (a key that's active after release, but will time out)
+- sticky (a key that will stay active indefinitely after release)
+- normal (a key that will stay active only while physically held; also applies
+  to normal modifier keys)
+
+The colors of theses three highlights are controlled by the properties
+`ActiveModColorEffect.oneshot_color`, `ActiveModColorEffect.sticky_color`, and
+`ActiveModColorEffect.highlight_color`, respectively.
+
 ### Better protection against unintended modifiers from Qukeys
 
 Qukeys has two new configuration options for preventing unintended modifiers in
@@ -86,23 +188,23 @@ See the [Kaleidoscope-USB-Quirks][plugin:USB-Quirks] plugin for a use-case.
 
 ### Finer stickability controls for OneShot
 
-The [OneShot plugin](plugins/OneShot.md) gained finer stickability controls, one can now control whether the double-tap stickiness is enabled on a per-key basis. See [UPGRADING.md](UPGRADING.md#finer-oneshot-stickability-control) for more information.
+The [OneShot plugin](plugins/Kaleidoscope-OneShot.md) gained finer stickability controls, one can now control whether the double-tap stickiness is enabled on a per-key basis. See [UPGRADING.md](UPGRADING.md#finer-oneshot-stickability-control) for more information.
 
 ### A way to slow down Unicode input
 
-In certain cases we need to delay the unicode input sequence, otherwise the host is unable to process the input properly. For this reason, the [Unicode](plugins/Unicode.md) gained an `.input_delay()` method that lets us do just that. It still defaults to no delay.
+In certain cases we need to delay the unicode input sequence, otherwise the host is unable to process the input properly. For this reason, the [Unicode](plugins/Kaleidoscope-Unicode.md) gained an `.input_delay()` method that lets us do just that. It still defaults to no delay.
 
 ### Better support for modifiers in the Cycle plugin
 
-The [Cycle](plugins/Cycle.md) plugin has much better support for cycling through keys with modifiers applied to them, such as `LSHIFT(Key_A)`. Please see the documentation and the updated example for more information.
+The [Cycle](plugins/Kaleidoscope-Cycle.md) plugin has much better support for cycling through keys with modifiers applied to them, such as `LSHIFT(Key_A)`. Please see the documentation and the updated example for more information.
 
 ### More control over when to send reports during Macro playback
 
-There are situations where one would like to disable sending a report after each and every step of a macro, and rather have direct control over when reports are sent. The new `WITH_EXPLICIT_REPORT`, `WITH_IMPLICIT_REPORT` and `SEND_REPORT` steps help with that. Please see the [Macros](plugins/Macros.md) documentation for more information.
+There are situations where one would like to disable sending a report after each and every step of a macro, and rather have direct control over when reports are sent. The new `WITH_EXPLICIT_REPORT`, `WITH_IMPLICIT_REPORT` and `SEND_REPORT` steps help with that. Please see the [Macros](plugins/Kaleidoscope-Macros.md) documentation for more information.
 
 ### LED-ActiveModColor can be asked to not highlight normal modifiers
 
-The plugin was intended to work with OneShot primarily, and that's where it is most useful. To make it less surprising, and more suitable to include it in default-like firmware, we made it possible to ask it not to highlight normal modifiers. Please see the [LED-ActiveModColor](plugins/LED-ActiveModColor.md) documentation for more information.
+The plugin was intended to work with OneShot primarily, and that's where it is most useful. To make it less surprising, and more suitable to include it in default-like firmware, we made it possible to ask it not to highlight normal modifiers. Please see the [LED-ActiveModColor](plugins/Kaleidoscope-LED-ActiveModColor.md) documentation for more information.
 
 ### Events now trigger on layer changes
 
@@ -132,39 +234,47 @@ Kaleidoscope has been ported to the following devices:
 
 For more information, please see the hardware plugins' documentation.
 
-To make it easier to port Kaleidoscope, we introduced the [ATMegaKeyboard](plugins/ATMegaKeyboard.md) base class. For any board that's based on the ATMega MCU and a simple matrix, this might be a good foundation to develop the hardware plugin upon.
+To make it easier to port Kaleidoscope, we introduced the `ATMegaKeyboard` base class. For any board that's based on the ATMega MCU and a simple matrix, this might be a good foundation to develop the hardware plugin upon.
 
 ## New plugins
 
+### CharShift
+
+The [CharShift](plugins/Kaleidoscope-CharShift.md) plugin allows independent assignment of symbols to keys depending on whether or not a `shift` key is held.
+
+### AutoShift
+
+The [AutoShift](plugins/Kaleidoscope-AutoShift.md) plugin provides an alternative way to get shifted symbols, by long-pressing keys instead of using a separate `shift` key.
+
 ### DynamicMacros
 
-The [DynamicMacros](plugins/DynamicMacros.md) plugin provides a way to use and update macros via the Focus API, through Chrysalis.
+The [DynamicMacros](plugins/Kaleidoscope-DynamicMacros.md) plugin provides a way to use and update macros via the Focus API, through Chrysalis.
 
 ### IdleLEDs
 
-The [IdleLEDs](plugins/IdleLEDs.md) plugin is a simple, yet, useful one: it will turn the keyboard LEDs off after a period of inactivity, and back on upon the next key event.
+The [IdleLEDs](plugins/Kaleidoscope-IdleLEDs.md) plugin is a simple, yet, useful one: it will turn the keyboard LEDs off after a period of inactivity, and back on upon the next key event.
 
 ### LEDActiveLayerColor
 
-The [LEDActiveLayerColor][plugins/LEDActiveLayerColor.md] plugin makes it possible to set the color of all LEDs to the same color, depending on which layer is active topmost.
+The [LEDActiveLayerColor][plugins/Kaleidoscope-LEDActiveLayerColor.md] plugin makes it possible to set the color of all LEDs to the same color, depending on which layer is active topmost.
 
 ### LED-Wavepool
 
-We integrated the [LEDWavepool](plugins/LED-Wavepool.md) plugin by [ToyKeeper][wavepool:origin], with a few updates and new features added.
+We integrated the [LEDWavepool](plugins/Kaleidoscope-LED-Wavepool.md) plugin by [ToyKeeper][wavepool:origin], with a few updates and new features added.
 
  [wavepool:origin]: https://github.com/ToyKeeper/Kaleidoscope-LED-Wavepool
 
 ### Turbo
 
-The [Turbo](plugins/Turbo.md) plugin provides a way to send keystrokes in very quick succession while holding down a key.
+The [Turbo](plugins/Kaleidoscope-Turbo.md) plugin provides a way to send keystrokes in very quick succession while holding down a key.
 
 ### WinKeyToggle
 
-The [WinKeyToggle](plugins/WinKeyToggle.md) plugin assists with toggling the Windows key on and off - a little something for those of us who game under Windows and are tired of accidentally popping up the start menu.
+The [WinKeyToggle](plugins/Kaleidoscope-WinKeyToggle.md) plugin assists with toggling the Windows key on and off - a little something for those of us who game under Windows and are tired of accidentally popping up the start menu.
 
 ### FirmwareDump
 
-The [FirmwareDump](plugins/FirmwareDump.md) plugin makes it possible to dump one's firmware over Focus.
+The [FirmwareDump](plugins/Kaleidoscope-FirmwareDump.md) plugin makes it possible to dump one's firmware over Focus.
 
 ## Breaking changes
 
@@ -197,29 +307,29 @@ The `NumPad` plugin used to toggle `NumLock` when switching to the NumPad layer.
 
 ### The `RxCy` macros and peeking into the keyswitch state
 
-The `RxCy` macros changed from being indexes into a per-hand bitmap to being an index across the whole keyboard. This mostly affected the [MagicCombo](plugins/MagicCombo.md) plugin.
+The `RxCy` macros changed from being indexes into a per-hand bitmap to being an index across the whole keyboard. This mostly affected the [MagicCombo](plugins/Kaleidoscope-MagicCombo.md) plugin.
 
 Please see the [relevant upgrade notes](UPGRADING.md#the-rxcy-macros-and-peeking-into-the-keyswitch-state) for more information.
 
 ### The `Redial` plugin had a breaking API change
 
-The [Redial](plugins/Redial.md) plugin was simplified, one no longer needs to define `Key_Redial` on their own, the plugin defines it itself. See the [upgrade notes](UPGRADING.md#Redial) for more information about how to upgrade.
+The [Redial](plugins/Kaleidoscope-Redial.md) plugin was simplified, one no longer needs to define `Key_Redial` on their own, the plugin defines it itself. See the [upgrade notes](UPGRADING.md#Redial) for more information about how to upgrade.
 
 ### Color palette storage has changed
 
-The [LED-Palette-Theme](plugins/LED-Palette-Theme.md) had to be changed to store the palette colors in reverse. This change had to be made in order to not default to a bright white palette, that would draw so much power that most operating systems would disconnect the keyboard due to excessive power usage. With inverting the colors, we now default to a black palette instead. This sadly breaks existing palettes, and you will have to re-set the colors.
+The [LED-Palette-Theme](plugins/Kaleidoscope-LED-Palette-Theme.md) had to be changed to store the palette colors in reverse. This change had to be made in order to not default to a bright white palette, that would draw so much power that most operating systems would disconnect the keyboard due to excessive power usage. With inverting the colors, we now default to a black palette instead. This sadly breaks existing palettes, and you will have to re-set the colors.
 
 We also changed when we reserve space for the palette in EEPROM: we used to do it as soon as possible, but that made it impossible to go from a firmware that does not use the plugin to one that does, and still have a compatible EEPROM layout. We now reserve space as late as possible. This breaks existing EEPROM layouts however.
 
 ### EEPROM-Keymap changed Focus commands
 
-The [EEPROMKeymap](plugins/EEPROM-Keymap.md) plugin was changed to treat built-in (default) and EEPROM-stored (custom) layers separately, because that's less surprising, and easier to work with from Chrysalis. The old `keymap.map` and `keymap.roLayers` commands are gone, the new `keymap.default` and `keymap.custom` commands should be used instead.
+The [EEPROMKeymap](plugins/Kaleidoscope-EEPROM-Keymap.md) plugin was changed to treat built-in (default) and EEPROM-stored (custom) layers separately, because that's less surprising, and easier to work with from Chrysalis. The old `keymap.map` and `keymap.roLayers` commands are gone, the new `keymap.default` and `keymap.custom` commands should be used instead.
 
 ### EEPROMSettings' version() setter has been deprecated
 
 We're repurposing the `version` setting: instead of it being something end-users
 can set, we'll be using it internally to track changes made to
-[EEPROMSettings](plugins/EEPROM-Settings.md) itself, with the goal of
+[EEPROMSettings](plugins/Kaleidoscope-EEPROM-Settings.md) itself, with the goal of
 allowing external tools to aid in migrations. The setting wasn't widely used -
 if at all -, which is why we chose to repurpose it instead of adding a new
 field.

docs/UPGRADING.md

@@ -7,17 +7,24 @@ If any of this does not make sense to you, or you have trouble updating your .in
 
 * [Upgrade notes](#upgrade-notes)
   + [New features](#new-features)
+    - [New event handler](#new-event-handler)
+    - [Event-driven main loop](#event-driven-main-loop)
+    - [Keyboard state array](#keyboard-state-array)
     - [New build system](#new-build-system)
     - [New device API](#new-device-api)
     - [New plugin API](#new-plugin-api)
     - [Bidirectional communication for plugins](#bidirectional-communication-for-plugins)
     - [Consistent timing](#consistent-timing)
   + [Breaking changes](#breaking-changes)
+    - [Macros](#macros)
+    - [Removed `kaleidoscope-builder`](#removed-kaleidoscope-builder)
+    - [OneShot meta keys](#oneshot-meta-keys)
     - [git checkouts aren't compatible with Arduino IDE (GUI)]([#repository-rearchitecture)
     - [Layer system switched to activation-order](#layer-system-switched-to-activation-order)
     - [The `RxCy` macros and peeking into the keyswitch state](#the-rxcy-macros-and-peeking-into-the-keyswitch-state)
     - [HostOS](#hostos)
     - [MagicCombo](#magiccombo)
+    - [OneShot](#oneshot)
     - [Qukeys](#qukeys)
     - [TypingBreaks](#typingbreaks)
     - [Redial](#redial)
@@ -34,6 +41,107 @@ any API we've included in a release. Typically, this means that any code that us
 
 ## New features
 
+### New event handler
+
+One more `KeyEvent` handler has been added: `afterReportingState(const KeyEvent &event)`.  This handler gets called after HID reports are sent for an event, providing a point for plugins to act after an event has been fully processed by `Runtime.handleKeyEvent()`.
+
+### Event-driven main loop
+
+Kaleidoscope's main loop has been rewritten. It now responds to key toggle-on and toggle-off events, dealing with one event at a time (and possibly more than one in a given cycle). Instead of sending a keyboard HID report at the end of every scan cycle (and letting the HID module suppress duplicates), it now only sends HID reports in response to input events.
+
+Furthermore, there are now two functions for initiating the processing of key events:
+- `Runtime.handleKeyswitchEvent()` is the starting point for events that represent physical keyswitches toggling on or off.
+- `Runtime.handleKeyEvent()` is the starting point for "artificial" key events. It is also called at the end of `handleKeyswitchEvent()`.
+In general, if a plugin needs to generate a key event, it should call `handleKeyEvent()`, not `handleKeyswitchEvent()`.
+
+Each of the above functions calls its own set of plugin event handlers. When those event handlers are all done, event processing continues as `handleKeyEvent()` prepares a new keyboard HID report, then sends it:
+- `Runtime.prepareKeyboardReport()` first clears the HID report, then populates it based on the contents of the `live_keys[]` array. Note that the HID report is not cleared until _after_ the new plugin event handlers have been called.
+- `Runtime.sendKeyboardReport()`  handles generating extra HID reports required for keys with keyboard modifier flags to avoid certain bugs, then calls a new plugin event handler before finally sending the new HID report.
+These functions should rarely, if ever, need to be called by plugins.
+
+#### The `KeyEvent` data type
+
+There is a new `KeyEvent` type that encapsulates all the data relevant to a new key event, and it is used as the parameter for the new event-handling functions.
+- `event.addr` contains the `KeyAddr` associated with the event.
+- `event.state` contains the state bitfield (`uint8_t`), which can be tested with `keyToggledOn()`/`keyToggledOff()`.
+- `event.key` contains a `Key` value, usually looked up from the keymap.
+- `event.id` contains a pseudo-unique ID number of type `KeyEventId` (an 8-bit integer), used by certain plugins (see `onKeyswitchEvent()` below).
+
+#### New plugin event handlers
+##### `onKeyswitchEvent(KeyEvent &event)`
+##### `onKeyEvent(KeyEvent &event)`
+##### `onAddToReport(Key key)`
+##### `beforeReportingState(const KeyEvent &event)`
+
+#### For end-users
+
+Existing sketches should be mostly backwards-compatible, but some updates will be needed for sketches that use custom code. In particular, users of the Macros plugin are likely to need to make adjustments to the code in the user-defined `macroAction()` function, including that function's signature, the new version of which takes a `KeyEvent` parameter instead of just an event state value. In most cases, this will make the resulting code more straightforward without any loss of functionality.
+
+In addition to Macros, these changes might also affect user-defined code executed by the TapDance, Leader, and Syster plugins. Please see the documentation and examples for the affected plugins for details.
+
+### Keyboard State array
+
+The keymap cache (`Layer_::live_composite_keymap_[]`) has been replaced by a keyboard state array (`kaleidoscope::live_keys[]`). The top-level functions that handle keyswitch events have been updated to treat this new array as a representation of the current state of the keyboard, with corresponding `Key` values for any keys that are active (physically held or activated by a plugin).
+
+#### For end-users
+
+There should be no user-visible changes for anyone who simply uses core plugins. A few functions have been deprecated (`Layer.eventHandler()` & `Layer.updateLiveCompositeKeymap()`), but there are straightforward replacements for both.
+
+#### For developers
+
+The major changes are to the `handleKeyswitchEvent()` function, which has been reorganized in order to update the new keyboard state array with correct values at the appropriate times. In addition to that, two new facilities are available:
+
+##### `EventHandlerResult::ABORT`
+
+This is a new return value available to plugin event handlers, which is similar to `EVENT_CONSUMED` in that it causes the calling hook function to return early (stopping any subsequent handlers from seeing the event), but is treated differently by `handleKeyswitchEvent()`. If a handler returns `EVENT_CONSUMED`, the keyboard state array will still be updated by `handleKeyswitchEvent()`, but if it returns `ABORT`, it will not. In both cases, no further event processing will be done by the built-in event handler.
+
+##### `live_keys[key_addr]`
+
+This is the new facility for checking the value of an entry in the keyboard state array. It is indexed directly by `KeyAddr` values, without the need to convert them to integers first. For example, it could be used in a range-based `for` loop to check for values of interest:
+
+```c++
+for (KeyAddr key_addr : KeyAddr::all()) {
+  Key key = live_keys[key_addr];
+  if (key == Key_LeftShift || key == Key_RightShift) {
+    // do something special...
+  }
+}
+```
+
+Additionally, if the `KeyAddr` values are not needed, one can use the iterator from the new `KeyMap` class like so:
+
+```c++
+for (Key key : live_keys.all()) {
+  if (key == Key_X) {
+    // do something special...
+  }
+}
+```
+
+The `live_keys` object's subscript operator can also be used to set values in the keyboard state array:
+
+```c++
+live_keys[key_addr] = Key_X;
+```
+
+It also comes with several convenience functions which can be used to make the intention of the code clear:
+
+```c++
+// Set a value in the keyboard state array to a specified Key value:
+live_keys.activate(key_addr, Key_X);
+
+// Set a value to Key_Inactive, deactivating the key:
+live_keys.clear(key_addr);
+
+// Set all values in the array to Key_Inactive:
+live_keys.clear();)
+
+// Set a value to Key_Masked, masking the key until its next release event:
+live_keys.mask(key_addr);
+```
+
+In most cases, it won't be necessary for plugins or user sketches to call any of these functions directly, as the built-in event handler functions will manage the keyboard state array automatically.
+
 ### New build system
 
 In this release, we replace kaleidoscope-builder with a new Makefile based build system that uses `arduino-cli` instead of of the full Arduino IDE. This means that you can now check out development copies of Kaliedoscope into any directory, using the `KALEIDOSCOPE_DIR` environment variable to point to your installation.
@@ -48,7 +156,7 @@ For end users, this doesn't come with any breaking changes. A few things have be
 
 #### For developers
 
-For those wishing to port Kaleidoscope to devices it doesn't support yet, the new API should make most things considerably easier. Please see the (work in progress) documentation in [doc/device-apis.md](doc/device-apis.md).
+For those wishing to port Kaleidoscope to devices it doesn't support yet, the new API should make most things considerably easier. Please see the documentation in [device-apis.md](api-reference/device-apis.md).
 
 The old symbols and APIs are no longer available.
 
@@ -101,6 +209,7 @@ In practice, this boils down to implementing one or more of the following hook p
 - `beforeEachCycle()`: Called once, at the beginning of each cycle of the main loop. This is similar to the old "loop hook" with its `post_clear` argument set to false. Takes no arguments, must return `kaleidoscope::EventHandlerResult::OK`.
 - `onKeyswitchEvent`: Called for every non-idle key event. This replaces the old "event handler hook". It takes a key reference, a key address, and a key state. The key reference can be updated to change the key being processed, so that any plugin that processes it further, will see the updated key. Can return `kaleidoscope::EventHandlerResult::OK` to let other plugins process the event further, or `kaleidoscope::EventHandlerResult::EVENT_CONSUMED` to stop processing.
 - `onFocusEvent`: Used to implement [bi-directional communication](#bidirectional-communication-for-plugins). This is called whenever the firmware receives a command from the host. The only argument is the command name. Can return `kaleidoscope::EventHandlerResult::OK` to let other plugins process the event further, or `kaleidoscope::EventHandlerResult::EVENT_CONSUMED` to stop processing.
+- `onNameQuery`: Used by the [Focus](#bidirecional-communication-for-plugins) plugin, when replying to a `plugins` command. Should either send the plugin name, or not be implemented at all, if the host knowing about the plugin isn't important.
 - `beforeReportingState`: Called without arguments, just before sending the keyboard and mouse reports to the host. Must return `kaleidoscope::EventHandlerResult::OK`.
 - `afterEachCycle`: Called without arguments at the very end of each cycle. This is the replacement for the "loop hook" with its `post_clear` argument set.
 
@@ -160,8 +269,17 @@ class FocusExampleCommand : public Plugin {
  public:
   FocusExampleCommand() {}
 
-  EventHandlerResult onFocusEvent(const char *command) {
+  EventHandlerResult onNameQuery() {
-    if (strcmp_P(command, PSTR("example")) != 0)
+    return ::Focus.sendName(F("FocusExampleCommand"));
+  }
+
+  EventHandlerResult onFocusEvent(const char *input) {
+    const char *cmd = PSTR("example");
+
+    if (::Focus.inputMatchesHelp(input))
+      return ::Focus.printHelp(cmd);
+
+    if (!::Focus.inputMatchesCommand(input, cmd))
       return EventHandlerResult::OK;
 
     ::Focus.send(F("This is an example response. Hello world!"));
@@ -235,8 +353,8 @@ class ExamplePlugin : public Plugin {
  public:
   ExamplePlugin();
 
-  EventHandlerResult onFocusEvent(const char *command) {
+  EventHandlerResult onFocusEvent(const char *input) {
-    if (strcmp_P(command, PSTR("example.toggle")) != 0)
+    if (!::Focus.inputMatchesCommand(input, PSTR("example.toggle")))
       return EventHandlerResult::OK;
 
     example_toggle_ = !example_toggle_;
@@ -295,8 +413,8 @@ class ExampleOptionalCommand : public Plugin {
  public:
   ExampleOptionalCommand() {}
 
-  EventHandlerResult onFocusEvent(const char *command) {
+  EventHandlerResult onFocusEvent(const char *input) {
-    if (strcmp_P(command, PSTR("optional")) != 0)
+    if (!::Focus.inputMatchesCommand(input, PSTR("optional")))
       return EventHandlerResult::OK;
 
     ::Focus.send(Layer.getLayerState());
@@ -324,6 +442,368 @@ As a developer, one can continue using `millis()`, but migrating to `Kaleidoscop
 
 ## Breaking changes
 
+### Sketch preprocssing system
+
+We used to support the ability to amend all compiled sketches by
+adding code to
+`src/kaleidoscope_internal/sketch_preprocessing/sketch_header.h`
+and `src/kaleidoscope_internal/sketch_preprocessing/sketch_footer.h`.
+The functionality was never used by Kaleidoscope itself and frequently
+pulled the (empty) header files from the wrong copy of Kaleidoscope.
+If you need this functionality, please open a GitHub issue.
+
+### Macros
+
+This is a guide to upgrading existing Macros code to use the new version of
+Kaleidoscope and the Macros plugin.
+
+#### New `macroAction()` function
+
+There is a new version of the `macroAction()` function, which is the entry point
+for user-defined Macros code. The old version takes two integer parameters, with
+the following call signature:
+
+```c++
+const macro_t* macroAction(uint8_t macro_id, uint8_t key_state)
+```
+
+If your sketch has this function, with a `key_state` bitfield parameter, it
+might still work as expected, but depending on the specifics of the code that
+gets called from it, your macros might not work as expected. Either way, you
+should update that function to the new version, which takes a `KeyEvent`
+reference as its second parameter:
+
+```c++
+const macro_t* macroAction(uint8_t macro_id, KeyEvent &event)
+```
+
+For simple macros, it is a simple matter of replacing `key_state` in the body of
+the `macroAction()` code with `event.state`. This covers most cases where all
+that's done is a call to `Macros.type()`, or a `MACRO()` or `MACRODOWN()`
+sequence is returned.
+
+
+#### Using `MACRO()` and `MACRODOWN()`
+
+The preprocessor macro `MACRODOWN()` has been deprecated, because the event
+handler for Macros is no longer called every cycle, but only when a key is
+either pressed or released.  Instead of using `return MACRODOWN()`, you should
+test for a toggle-on event in `macroAction()` and use `MACRO()` instead.  If you
+previously had something like the following in your `macroAction()` function:
+
+```c++
+switch(macro_id) {
+case MY_MACRO:
+  return MACRODOWN(T(X), T(Y), T(Z));
+}
+```
+
+...you should replace that with:
+
+```c++
+switch(macro_id) {
+case MY_MACRO:
+  if (keyToggledOn(event.state))
+    return MACRO(T(X), T(Y), T(Z));
+}
+```
+
+...or, for a group of macros that should only fire on keypress:
+
+```c++
+if (keyToggledOn(event.state)) {
+  switch(macro_id) {
+  case MY_MACRO:
+    return MACRO(T(X), T(Y), T(Z));
+  case MY_OTHER_MACRO:
+    return MACRO(T(A), T(B), T(C));
+  }
+}
+```
+
+#### Releasing keys with `Macros.release()` or `U()`/`Ur()`/`Uc()`
+
+Macros now operates by manipulating keys on a small supplemental virtual
+keyboard when using `Macros.press()` and `Macros.release()` (which are called by
+`D()` and `U()`, _et al_, respectively).  This means that it has no built-in
+facility for releasing other keys that are held on the keyboard.  For example,
+if you had a Macro that removed `shift` keycodes from the HID report in the
+past, it won't work.  For example:
+
+```c++
+  case KEY_COMMA:
+    if (keyToggledOn(event.state)) {
+      if (Kaleidoscope.hid().keyboard().wasModifierKeyActive(Key_LeftShift)) {
+        return MACRO(U(LeftShift), T(Comma), D(LeftShift));
+      } else {
+        return MACRO(T(M));
+      }
+    }
+```
+
+In this case, holding a physical `Key_LeftShift` and pressing `M(KEY_COMMA)`
+will not cause the held `shift` to be released, and you'll get a `<` instead of
+the intended `,` (depending on the OS keymap).  To accomplish this, you'll need
+a small plugin like the following in your sketch:
+
+```c++
+namespace kaleidoscope {
+namespace plugin {
+
+// When activated, this plugin will suppress any `shift` key (including modifier
+// combos with `shift` a flag) before it's added to the HID report.
+class ShiftBlocker : public Plugin {
+
+ public:
+  EventHandlerResult onAddToReport(Key key) {
+    if (active_ && key.isKeyboardShift())
+      return EventHandlerResult::ABORT;
+    return EventHandlerResult::OK;
+  }
+
+  void enable() {
+    active_ = true;
+  }
+  void disable() {
+    active_ = false;
+  }
+
+ private:
+  bool active_{false};
+
+};
+
+} // namespace plugin
+} // namespace kaleidoscope
+
+kaleidoscope::plugin::ShiftBlocker ShiftBlocker;
+```
+
+You may also need to define a function to test for held `shift` keys:
+
+```c++
+bool isShiftKeyHeld() {
+  for (Key key : kaleidoscope::live_keys.all()) {
+    if (key.isKeyboardShift())
+      return true;
+  }
+  return false;
+}
+```
+
+Then, in your `macroAction()` function:
+
+```c++
+  if (keyToggledOn(event.state)) {
+    switch (macro_id) {
+    case MY_MACRO:
+      if (isShiftKeyHeld()) {
+        ShiftBlocker.enable();
+        Macros.tap(Key_Comma);
+        ShiftBlocker.disable();
+      } else {
+        Macros.tap(Key_M);
+      }
+      return MACRO_NONE;
+    }
+  }
+```
+
+In many simple cases, such as the above example, an even better solution is to
+use the CharShift plugin instead of Macros.
+
+#### Code that calls `handleKeyswitchEvent()` or `pressKey()`
+
+It is very likely that if you have custom code that calls
+`handleKeyswitchEvent()` or `pressKey()` directly, it will no longer function
+properly after upgrading. To adapt this code to the new `KeyEvent` system
+requires a deeper understanding of the changes to Kaleidoscope, but likely
+results in much simpler Macros code.
+
+The first thing that is important to understand is that the `macroAction()`
+function will now only be called when a Macros `Key` toggles on or off, not once
+per cycle while the key is held.  This is because the new event handling code in
+Kaleidoscope only calls plugin handlers in those cases, dealing with one event
+at a time, in a single pass through the plugin event handlers (rather than one
+pass per active key)--and only sends a keyboard HID report in response to those
+events, not once per scan cycle.
+
+This means that any Macros code that is meant to keep keycodes in the keyboard
+HID report while the Macros key is held needs to be changed. For example, if a
+macro contained the following code:
+
+```c++
+if (keyIsPressed(key_state)) {
+  Runtime.hid().keyboard().pressKey(Key_LeftShift);
+}
+```
+
+...that wouldn't work quite as expected, because as soon as the next key is
+pressed, a new report would be generated without ever calling `macroAction()`,
+and therefore that change to the HID report would not take place, effectively
+turning off the `shift` modifier immediately before sending the report with the
+keycode that it was intended to modify.
+
+Furthermore, that `shift` modifier would never even get sent in the first place,
+because the HID report no longer gets cleared at the beginning of every
+cycle. Now it doesn't get cleared until _after_ the plugin event handlers get
+called (in the case of Macros, that's `onKeyEvent()`, which calls the
+user-defined `macroAction()` function), so any changes made to the HID report
+from that function will be discarded before it's sent.
+
+Instead of the above, there are two new mechanisms for keeping keys active while
+a Macros key is pressed:
+
+##### Alter the `event.key` value
+
+If your macro only needs to keep a single `Key` value active after running some
+code, and doesn't need to run any custom code when the key is released, the
+simplest thing to do is to override the event's `Key` value:
+
+```c++
+if (keyToggledOn(event.state)) {
+  // do some macro action(s)
+  event.key = Key_LeftShift;
+}
+```
+
+This will (temporarily) replace the Macros key with the value assigned (in this
+case, `Key_LeftShift`), starting immediately after the `macroAction()` function
+returns, and lasting until the key is released. This key value can include
+modifier flags, or it can be a layer-shift, or any other valid `Key` value
+(though it won't get processed by plugins that are initialized before Macros in
+`KALEIDOSCOPE_INIT_PLUGINS()`, and Macros itself won't act on the value, if it
+gets replaced by a different Macros key).
+
+##### Use the supplemental Macros `Key` array
+
+The Macros plugin now contains a small array of `Key` values that will be
+included when building HID reports triggered by subsequent, non-Macros
+events. To use it, just call one (or more) of the following methods:
+
+```c++
+Macros.press(key);
+Macros.release(key);
+Macros.tap(key)
+```
+
+Each one of these functions generates a new artificial key event, and processes
+it (including sending a HID report, if necessary). For `press()` and
+`release()`, it also stores the specified key's value in the Macros supplemental
+`Key` array. In the case of the `tap()` function, it generates matching press
+and release events, but skips storing them, assuming that no plugin will
+generate an intervening event. All of the events generated by these functions
+will be marked `INJECTED`, which will cause Macros itself (and many other
+plugins) to ignore them.
+
+This will allow you to keep multiple `Key` values active while a Macros key is
+held, while leaving the Macros key itself active, enabling more custom code to
+be called on its release.  Note that whenever a Macros key is released, the
+supplemental key array is cleared to minimize the chances of keycodes getting
+"stuck". It is still possible to write a macro that will cause values to persist
+in this array, however, by combining both a sequence that uses key presses
+without matched releases _and_ replacing `event.key` (see above) in the same
+macro.
+
+##### Borrow an idle key (not recommended)
+
+It's also possible to "borrow" one (or more) idle keys on the keyboard by
+searching the `live_keys[]` array for an empty entry, and generating a new event
+with the address of that key. This is not recommended because surprising things
+can happen if that key is then pressed and released, but it's still an option
+for people who like to live dangerously.
+
+#### Code that calls `sendReport()`
+
+Calling `sendReport()` directly from a macro is now almost always unnecessary.
+Instead, a call to `Runtime.handleKeyEvent()` will result in a keyboard HID
+report being sent in response to the generated event without needing to make it
+explicit.
+
+#### Code that uses `Macros.key_addr`
+
+This variable is deprecated. Instead, using the new `macroAction(id, event)`
+function, the address of the Macros key is available via the `event.addr`
+variable.
+
+#### Working with other plugins
+
+##### Plugin-specific `Key` values
+
+When the the Macros plugin generates events, it marks the event state as
+`INJECTED` in order to prevent unbounded recursion (Macros ignores injected
+events).  This causes most other plugins to ignore the event, as well.
+Therefore, including a plugin-specific key (e.g. a OneShot modifier such as
+`OSM(LeftAlt)`) will most likely be ignored by the target plugin, and will
+therefore not have the desired effect. This applies to any calls to
+`Macros.play()` (including returning `MACRO()` from `macroAction()`),
+`Macros.tap()`, `Macros.press()`, and `Macros.release()`.
+
+##### Physical event plugins
+
+Macros cannot usefully produce events handled by plugins that implement the
+`onKeyswitchEvent()` handler, such as Qukeys, TapDance, and Leader.  To make
+those plugins work with Macros, it's necessary to have the other plugin produce
+a Macros key, not the other way around. A `macroAction()` function must not call
+`Runtime.handleKeyswitchEvent()`.
+
+##### OneShot
+
+This is one plugin that you might specifically want to use with a macro,
+generally at the end of a sequence.  For example, a macro for ending one
+sentence and beginning the next one might print a period followed by a space
+(`. `), then a OneShot shift key tap, so that the next character will be
+automatically capitalized. The problem, as mentioned before is that the
+following won't work:
+
+```c++
+MACRO(Tc(Period), Tc(Spacebar), Tr(OSM(LeftShift)))
+```
+
+...because OneShot will ignore the `INJECTED` event.  One solution is to change
+the value of `event.key`, turning the pressed Macros key into a OneShot
+modifier. This will only work if Macros is registered before OneShot in
+`KALEIDOSCOPE_INIT_PLUGINS()`:
+
+```c++
+const macro_t* macroNewSentence(KeyEvent &event) {
+  if (keyToggledOn(event.state)) {
+    event.key = OSM(LeftShift);
+    return MACRO(Tc(Period), Tc(Spacebar));
+  }
+  return MACRO_NONE;
+}
+```
+
+A more robust solution is to explicitly call `Runtime.handleKeyEvent()`, but
+this is more complex, because you'll need to prevent the Macros key from
+clobbering the OneShot key in the `live_keys[]` array:
+
+```c++
+void macroNewSentence(KeyEvent &event) {
+  if (keyToggledOn(event.state)) {
+    Macros.tap(Key_Period);
+    Macros.tap(Key_Spacebar);
+    event.key = OSM(LeftShift);
+    kaleidoscope::Runtime.handleKeyEvent(event);
+    // Last, we invalidate the current event's key address to prevent the Macros
+    // key value from clobbering the OneShot shift.
+    event.key = Key_NoKey;
+    event.addr.clear();
+  }
+}
+```
+
+### Removed `kaleidoscope-builder`
+
+`kaleidoscope-builder` has been removed.
+
+We replaced it with a new Makefile based build system that uses `arduino-cli` instead of of the full Arduino IDE. This means that you can now check out development copies of Kaliedoscope into any directory, using the `KALEIDOSCOPE_DIR` environment variable to point to your installation.
+
+### OneShot meta keys
+
+The special OneShot keys `OneShot_MetaStickyKey` & `OneShot_ActiveStickyKey` are no longer handled by the OneShot plugin directly, but instead by a separate OneShotMetaKeys plugin. If you use these keys in your sketch, you will need to add the new plugin, and register it after OneShot in `KALEIDOSCOPE_INIT_PLUGINS()` for those keys to work properly.
+
 ### Repository rearchitecture
 
 To improve build times and to better highlight Kaleidoscope's many plugins, plugins have been move into directories inside the Kaleidoscope directory.
@@ -338,7 +818,7 @@ The layer system used to be index-ordered, meaning that we'd look keys up on
 layers based on the _index_ of active layers. Kaleidoscope now uses activation
 order, which looks up keys based on the order of layer activation.
 
-This means that the following functions are deprecated, and will be removed by **2020-12-31**:
+The following functions have been removed as of **2021-01-01**:
 
 - `Layer.top()`, which used to return the topmost layer index. Use
   `Layer.mostRecent()` instead, which returns the most recently activated layer.
@@ -464,7 +944,7 @@ The new API is much shorter, and is inspired by the way the [Leader][leader]
 plugin works: instead of having a list, and a dispatching function like
 `magicComboActions`, we include the action method in the list too!
 
- [leader]: plugins/Leader.md
+ [leader]: plugins/Kaleidoscope-Leader.md
 
 We also don't make a difference between left- and right-hand anymore, you can
 just list keys for either in the same list. This will be very handy for
@@ -512,6 +992,12 @@ If your actions made use of the `left_hand` or `right_hand` arguments of
 more involved to get to, out of scope for this simple migration guide. Please
 open an issue, or ask for help on the forums, and we'll help you.
 
+### OneShot
+
+Older versions of the plugin were based on `Key` values; OneShot is now based on
+`KeyAddr` coordinates instead, in order to improve reliability and
+functionality.
+
 ### Qukeys
 
 Older versions of the plugin used `row` and `col` indexing for defining `Qukey`
@@ -532,7 +1018,7 @@ which accepts a value between 0 and 100 (interpreted as a percentage). User who
 used higher values for `setReleaseDelay()` will want a lower values for
 `setOverlapThreshold()`.
 
-These functions have been deprecated since 2019-08-22, and will be removed by **2020-12-31**:
+These functions have been removed as of **2020-12-31**:
 
 - `Qukeys.setTimeout(millis)`
 - `Qukeys.setReleaseDelay(millis)`
@@ -548,16 +1034,22 @@ Storing the settable settings in EEPROM makes it depend on `Kaleidoscope-EEPROM-
 
 Older versions of the plugin required one to set up `Key_Redial` manually, and let the plugin know about it via `Redial.key`. This is no longer required, as the plugin sets up the redial key itself. As such, `Redial.key` was removed, and `Key_Redial` is defined by the plugin itself. To upgrade, simply remove your definition of `Key_Redial` and the `Redial.key` assignment from your sketch.
 
-### Key masking has been deprecated
+### Key masking has been removed
 
 Key masking was a band-aid introduced to avoid accidentally sending unintended keys when key mapping changes between a key being pressed and released. Since the introduction of keymap caching, this is no longer necessary, as long as we can keep the mapping consistent. Users of key masking are encouraged to find ways to use the caching mechanism instead.
 
 As an example, if you had a key event handler that in some cases masked a key, it should now map it to `Key_NoKey` instead, until released.
 
-The masking API has been deprecated, and is scheduled to be removed after **2020-11-25**.
+The masking API has been removed on **2021-01-01**
 
 ## Deprecated APIs and their replacements
 
+### Leader plugin
+
+The `Leader.inject()` function is deprecated.  Please call `Runtime.handleKeyEvent()` directly instead.
+
+Direct access to the `Leader.time_out` configuration variable is deprecated.  Please use the `Leader.setTimeout(ms)` function instead.
+
 ### Source code and namespace rearrangement
 
 With the move towards a monorepo-based source, some headers have moved to a new location, and plenty of plugins moved to a new namespace (`kaleidoscope::plugin`). This means that the old headers, and some old names are deprecated. The old names no longer work.
@@ -565,29 +1057,121 @@ With the move towards a monorepo-based source, some headers have moved to a new
 The following headers and names have changed:
 
 - `layers.h`, `key_defs_keymaps.h` and `macro_helpers.h` are obsolete, and should not be included in the first place, as `Kaleidoscope.h` will pull them in. In the rare case that one needs them, prefixing them with `kaleidoscope/` is the way to go. Of the various headers provided under the `kaleidoscope/` space, only `kaleidoscope/macro_helpers.h` should be included directly, and only by hardware plugins that can't pull `Kaleidoscope.h` in due to circular dependencies.
-- `LED-Off.h`, provided by [LEDControl](plugins/LEDControl.md) is obsolete, the `LEDOff` LED mode is automatically provided by `Kaleidoscope-LEDControl.h`. The `LED-Off.h` includes can be safely removed.
+- `LED-Off.h`, provided by [LEDControl](plugins/Kaleidoscope-LEDControl.md) is obsolete, the `LEDOff` LED mode is automatically provided by `Kaleidoscope-LEDControl.h`. The `LED-Off.h` includes can be safely removed.
 - `LEDUtils.h` is automatically pulled in by `Kaleiodscope-LEDControl.h`, too, and there's no need to directly include it anymore.
 - Plugins that implement LED modes should subclass `kaleidoscope::plugin::LEDMode` instead of `kaleidoscope::LEDMode`.
-- [GhostInTheFirmware](plugins/GhostInTheFirmware.md) had the `kaleidoscope::GhostInTheFirmware::GhostKey` type replaced by `kaleidoscope::plugin::GhostInTheFirmware::GhostKey`.
+- [GhostInTheFirmware](plugins/Kaleidoscope-GhostInTheFirmware.md) had the `kaleidoscope::GhostInTheFirmware::GhostKey` type replaced by `kaleidoscope::plugin::GhostInTheFirmware::GhostKey`.
-- [HostOS](plugins/HostOS.md) no longer provides the `Kaleidoscope/HostOS-select.h` header, and there is no backwards compatibility header either.
+- [HostOS](plugins/Kaleidoscope-HostOS.md) no longer provides the `Kaleidoscope/HostOS-select.h` header, and there is no backwards compatibility header either.
-- [Leader](plugins/Leader.md) had the `kaleidoscope::Leader::dictionary_t` type replaced by `kaleidoscope::plugin::Leader::dictionary_t`.
+- [Leader](plugins/Kaleidoscope-Leader.md) had the `kaleidoscope::Leader::dictionary_t` type replaced by `kaleidoscope::plugin::Leader::dictionary_t`.
-- [LED-AlphaSquare](plugins/LED-AlphaSquare.md) used to provide extra symbol graphics in the `kaleidoscope::alpha_square::symbols` namespace. This is now replaced by `kaleidoscope::plugin::alpha_square::symbols`.
+- [LED-AlphaSquare](plugins/Kaleidoscope-LED-AlphaSquare.md) used to provide extra symbol graphics in the `kaleidoscope::alpha_square::symbols` namespace. This is now replaced by `kaleidoscope::plugin::alpha_square::symbols`.
-- [LEDEffect-SolidColor](plugins/LEDEffect-SolidColor.md) replaced the base class  - `kaleidoscope::LEDSolidColor` - with `kaleidoscope::plugin::LEDSolidColor`.
+- [LEDEffect-SolidColor](plugins/Kaleidoscope-LEDEffect-SolidColor.md) replaced the base class  - `kaleidoscope::LEDSolidColor` - with `kaleidoscope::plugin::LEDSolidColor`.
-- [Qukeys](plugins/Qukeys.md) had the `kaleidoscope::Qukey` type replaced by `kaleidoscope::plugin::Qukey`.
+- [Qukeys](plugins/Kaleidoscope-Qukeys.md) had the `kaleidoscope::Qukey` type replaced by `kaleidoscope::plugin::Qukey`.
-- [ShapeShifter](plugins/ShateShifter.md) had the `kaleidoscope::ShapeShifter::dictionary_t` type replaced by `kaleidoscope::plugin::ShapeShifter::dictionary_t`.
+- [ShapeShifter](plugins/Kaleidoscope-ShapeShifter.md) had the `kaleidoscope::ShapeShifter::dictionary_t` type replaced by `kaleidoscope::plugin::ShapeShifter::dictionary_t`.
-- [SpaceCadet](plugins/SpaceCadet.md) had the `kaleidoscope::SpaceCadet::KeyBinding` type replaced by `kaleidoscope::plugin::SpaceCadet::KeyBinding`.
+- [SpaceCadet](plugins/Kaleidoscope-SpaceCadet.md) had the `kaleidoscope::SpaceCadet::KeyBinding` type replaced by `kaleidoscope::plugin::SpaceCadet::KeyBinding`.
-- [Syster](plugins/Syster.md) had the `kaleidoscope::Syster::action_t` type replaced by `kaleidoscope::plugin::Syster::action_t`.
+- [Syster](plugins/Kaleidoscope-Syster.md) had the `kaleidoscope::Syster::action_t` type replaced by `kaleidoscope::plugin::Syster::action_t`.
-- [TapDance](plugins/TapDance.md) had the `kaleidoscope::TapDance::ActionType` type replaced by `kaleidoscope::plugin::TapDance::ActionType`.
+- [TapDance](plugins/Kaleidoscope-TapDance.md) had the `kaleidoscope::TapDance::ActionType` type replaced by `kaleidoscope::plugin::TapDance::ActionType`.
 
 # Removed APIs
 
+### Removed on 2022-03-03
+
+#### Pre-`KeyEvent` event handler hooks
+
+The old event handler `onKeyswitchEvent(Key &key, KeyAddr addr, uint8_t state)` was removed on **2022-03-03**.  It has been replaced with the new `onKeyEvent(KeyEvent &event)` handler (and, in some special cases the `onKeyswitchEvent(KeyEvent &event)` handler).  Plugins using the deprecated handler will need to be rewritten to use the new one(s).
+
+The old event handler `beforeReportingState()` was removed on **2022-03-03**.  It has been replaced with the new `beforeReportingState(KeyEvent &event)` handler.  However, the new handler will be called only when a report is being sent (generally in response to a key event), not every cycle, like the old one.  It was common practice in the past for plugins to rely on `beforeReportingState()` being called every cycle, so when adapting to the `KeyEvent` API, it's important to check for code that should be moved to `afterEachCycle()` instead.
+
+#### `::handleKeyswitchEvent(Key key, KeyAddr key_addr, uint8_t state)`
+
+The old master function for processing key "events" was removed on **2022-03-03**.  Functions that were calling this function should be rewritten to call `kaleidoscope::Runtime.handleKeyEvent(KeyEvent event)` instead.
+
+#### `Keyboard::pressKey(Key key, bool toggled_on)`
+
+This deprecated function was removed on **2022-03-03**.  Its purpose was to handle rollover events for keys that include modifier flags, and that handling is now done elsewhere.  Any code that called it should now simply call `Keyboard::pressKey(Key key)` instead, dropping the second argument.
+
+#### Old layer key event handler functions
+
+The deprecated `Layer.handleKeymapKeyswitchEvent()` function was removed on **2022-03-03**.  Any code that called it should now call `Layer.handleLayerKeyEvent()` instead, with `event.addr` set to the appropriate `KeyAddr` value if possible, and `KeyAddr::none()` otherwise.
+
+The deprecated `Layer.eventHandler(key, addr, state)` function was removed on **2022-03-03**.  Any code that refers to it should now call call `handleLayerKeyEvent(KeyEvent(addr, state, key))` instead.
+
+#### Keymap cache functions
+
+The deprecated `Layer.updateLiveCompositeKeymap()` function was removed on **2022-03-03**.  Plugin and user code probably shouldn't have been calling this directly, so there's no direct replacement for it.  If a plugin needs to make changes to the `live_keys` structure (equivalent in some circumstances to the old "live composite keymap"), it can call `live_keys.activate(addr, key)`, but there are probably better ways to accomplish this goal (e.g. simply changing the value of `event.key` from an `onKeyEvent(event)` handler).
+
+The deprecated `Layer.lookup(addr)` function was removed on **2022-03-03**.  Please use `Runtime.lookupKey(addr)` instead in most circumstances.  Alternatively, if you need information about the current state of the keymap regardless of any currently active keys (which may have values that override the keymap), use `Layer.lookupOnActiveLayer(addr)` instead.
+
+#### `LEDControl.syncDelay` configuration variable
+
+Direct access to this configuration variable was removed on **2022-03-03**.  Please use `LEDControl.setInterval()` to set the interval between LED updates instead.
+
+#### Obsolete active macros array removed
+
+The deprecated `Macros.active_macro_count` variable was removed on **2022-03-03**.  Any references to it are obsolete, and can simply be removed.
+
+The deprecated `Macros.active_macros[]` array was removed on **2022-03-03**.  Any references to it are obsolete, and can simply be removed.
+
+The deprecated `Macros.addActiveMacroKey()` function was removed on **2022-03-03**.  Any references to it are obsolete, and can simply be removed.
+
+#### Pre-`KeyEvent` Macros API
+
+This is a brief summary of specific elements that were removed.  There is a more comprehensive guide to upgrading existing Macros user code in the [Breaking Changes](#breaking-changes) section, under [Macros](#macros).
+
+Support for deprecated form of the `macroAction(uint8_t macro_id, uint8_t key_state)` function was removed on **2022-03-03**.  This old form must be replaced with the new `macroAction(uint8_t macro_id, KeyEvent &event)` for macros to continue working.
+
+The `Macros.key_addr` public variable was removed on **2022-03-03**.  To get access to the key address of a Macros key event, simply refer to `event.addr` from within the new `macroAction(macro_id, event)` function.
+
+The deprecated `MACRODOWN()` preprocessor macro was removed on **2022-03-03**.  Since most macros are meant to be triggered only by keypress events (not key release), and because `macroAction()` does not get called every cycle for held keys, it's better to simply do one test for `keyToggledOn(event.state)` first, then use `MACRO()` instead.
+
+#### ActiveModColor public variables
+
+The following deprecated `ActiveModColorEffect` public variables were removed on **2022-03-03**.  Please use the following methods instead:
+
+ - For `ActiveModColor.highlight_color`, use `ActiveModColor.setHighlightColor(color)`
+ - For `ActiveModColor.oneshot_color`, use `ActiveModColor.setOneShotColor(color)`
+ - For `ActiveModColor.sticky_color`, use `ActiveModColor.setStickyColor(color)`
+
+#### OneShot public variables
+
+The following deprecated `OneShot` public variables were removed on **2022-03-03**.  Please use the following methods instead:
+
+ - For `OneShot.time_out`, use `OneShot.setTimeout(ms)`
+ - For `OneShot.hold_time_out`, use `OneShot.setHoldTimeout(ms)`
+ - For `OneShot.double_tap_time_out`, use `OneShot.setDoubleTapTimeout(ms)`
+
+#### Deprecated OneShot API functions
+
+OneShot was completely rewritten in early 2021, and now is based on `KeyAddr` values (as if it keeps physical keys pressed) rather than `Key` values (with no corresponding physical key location).  This allows it to operate on any `Key` value, not just modifiers and layer shifts.
+
+The deprecated `OneShot.inject(key, key_state)` function was removed on **2022-03-03**.  Its use was very strongly discouraged, and is now unavailable.  See below for alternatives.
+
+The deprecated `OneShot.isActive(key)` function was removed on **2022-03-03**.  There is a somewhat equivalent `OneShot.isActive(KeyAddr addr)` function to use when the address of a key that might be currently held active by OneShot is known.  Any code that needs information about active keys is better served by not querying OneShot specifically.
+
+The deprecated `OneShot.isSticky(key)` function was removed on **2022-03-03**.  There is a somewhat equivalent `OneShot.isStick(KeyAddr addr)` function to use when the address of a key that may be in the one-shot sticky state is known.
+
+The deprecated `OneShot.isPressed()` function was removed on **2022-03-03**.  It was already devoid of functionality, and references to it can be safely removed.
+
+The deprecated `OneShot.isModifierActive(key)` function was removed on **2022-03-03**.  OneShot modifiers are now indistinguishable from other modifier keys, so it is better for client code to do a more general search of `live_keys` or to use another mechanism for tracking this state.
+
+#### `HostPowerManagement.enableWakeup()`
+
+This deprecated function was removed on **2022-03-03**.  The firmware now supports wakeup by default, so any references to it can be safely removed.
+
+#### `EEPROMSettings.version(uint8_t version)`
+
+This deprecated function was removed on **2022-03-03**.  The information stored is not longer intended for user code to set, but instead is used internally.
+
+#### Model01-TestMode plugin
+
+This deprecated plugin was removed on **2022-03-03**.  Please use the more generic HardwareTestMode plugin instead.
+
 ### Removed on 2020-10-10
 
-### Deprecation of the HID facade
+#### Deprecation of the HID facade
 
 With the new Device APIs it became possible to replace the HID facade (the `kaleidoscope::hid` family of functions) with a driver. As such, the old APIs are deprecated, and was removed on 2020-10-10. Please use `Kaleidoscope.hid()` instead.
 
-### Implementation of type Key internally changed from C++ union to class
+#### Implementation of type Key internally changed from C++ union to class
 
 The deprecated functions were removed on 2020-10-10.
 
@@ -658,7 +1242,7 @@ The deprecated row/col based indexing APIs have been removed on **2020-06-16**.
 
 #### EEPROMKeymap mode
 
-The [EEPROM-Keymap](plugins/EEPROM-Keymap.md) plugin had its `setup()` method changed, the formerly optional `method` argument is now obsolete and unused. It can be safely removed.
+The [EEPROM-Keymap](plugins/Kaleidoscope-EEPROM-Keymap.md) plugin had its `setup()` method changed, the formerly optional `method` argument is now obsolete and unused. It can be safely removed.
 
 ##### keymaps array and KEYMAPS and KEYMAPS_STACKED macros
 

docs/api-reference/device-apis.md

@@ -27,13 +27,13 @@ amount of custom code one has to write will be minimal.
 A `Device` is the topmost level component, it is the interface the rest of
 Kaleidoscope will work with. The [`kaleidoscope::device::Base`][k:d:Base] class
 is the ancestor of _all_ devices, everything derives from this. Devices that use
-an `ATMega32U4` MCU we also have the
+an `ATmega32U4` MCU we also have the
-[`kaleidoscope::device::ATMega32U4Keyboard`][k:d:a32u4] class, which sets up
+[`kaleidoscope::device::ATmega32U4Keyboard`][k:d:a32u4] class, which sets up
-some of the components that is common to all `ATMega32U4`-based devices (such as
+some of the components that is common to all `ATmega32U4`-based devices (such as
 the _MCU_ and the _Storage_).
 
- [k:d:Base]:../src/kaleidoscope/device/Base.h
+ [k:d:Base]: ../../src/kaleidoscope/device/Base.h
- [k:d:a32u4]: ../src/kaleidoscope/device/ATMega32U4.h
+ [k:d:a32u4]: ../../src/kaleidoscope/device/ATmega32U4Keyboard.h
 
 As hinted at above, a device - or rather, it's `Props` - describe the components
 used for the device, such as the MCU, the Bootloader, the Storage driver, LEDs,
@@ -42,7 +42,7 @@ in `Props` - the defaults are all no-ops.
 
 All devices must also come with a `Props` struct, deriving from [`kaleidoscope::device::BaseProps`][k:d:BaseProps].
 
- [k:d:BaseProps]: ../src/kaleidoscope/device/Base.h
+ [k:d:BaseProps]: ../../src/kaleidoscope/device/Base.h
 
 As an example, the most basic device we can have, that does nothing, would look
 like this:
@@ -66,16 +66,16 @@ components the device ends up using.
 
 The heart of any device will be the main controller unit, or _MCU_ for short.
 The [`kaleidoscope::driver::mcu::Base`][k:d:m:Base] class is the ancestor of our
-MCU drivers, including [`mcu::ATMega32U4`][k:d:m:a32u4].
+MCU drivers, including [`kaleidoscope::driver::mcu::ATmega32U4`][k:d:m:a32u4].
 
- [k:d:m:Base]: ../src/kaleidoscope/driver/mcu/Base.h
+ [k:d:m:Base]: ../../src/kaleidoscope/driver/mcu/Base.h
- [k:d:m:a32u4]: ../src/kaleidoscope/driver/mcu/ATMega32U4.h
+ [k:d:m:a32u4]: ../../src/kaleidoscope/driver/mcu/ATmega32U4.h
 
 The core firmware will use the `detachFromHost()` and `attachToHost()` methods
 of the MCU driver, along with `setup()`, but the driver - like any other
 driver - is free to have other methods, to be used by individual devices.
 
-For example, the [`ATMega32U4`][k:d:m:a32u4] driver implements a `disableJTAG()`
+For example, the [`ATmega32U4`][k:d:m:a32u4] driver implements a `disableJTAG()`
 and a `disableClockDivision()` method, which some of our devices use in their
 constructors.
 
@@ -88,16 +88,16 @@ thing that allows us to re-program the keyboard without additional hardware
 (aptly called a programmer). As such, the [`base class`][k:d:b:Base] has a
 single method, `rebootBootloader()`, which our bootloader components implement.
 
- [k:d:b:Base]: ../src/kaleidoscope/bootloader/Base.h
+ [k:d:b:Base]: ../../src/kaleidoscope/driver/bootloader/Base.h
 
-Kaleidoscope currently supports [`Catalina`][k:d:b:Catalina],
+Kaleidoscope currently supports [`Caterina`][k:d:b:Caterina],
 [`HalfKay`][k:d:b:HalfKay], and [`FLIP`][k:d:b:FLIP] bootloaders. Please consult
 them for more information. In many cases, setting up the bootloader in the
 device props is all one needs to do.
 
- [k:d:b:Catalina]: ../src/kaleidoscope/driver/bootloader/avr/Catalina.h
+ [k:d:b:Caterina]: ../../src/kaleidoscope/driver/bootloader/avr/Caterina.h
- [k:d:b:HalfKay]: ../src/kaleidoscope/driver/bootloader/avr/HalfKay.h
+ [k:d:b:HalfKay]: ../../src/kaleidoscope/driver/bootloader/avr/HalfKay.h
- [k:d:b:FLIP]: ../src/kaleidoscope/driver/bootloader/avr/FLIP.h
+ [k:d:b:FLIP]: ../../src/kaleidoscope/driver/bootloader/avr/FLIP.h
 
 Like the _MCU_ component, the _bootloader_ does not use Props, either.
 
@@ -113,40 +113,40 @@ to flash new firmware.
 The Storage API resembles the Arduino EEPROM API very closely. In fact, our
 [`AVREEPROM`][k:d:s:AVREEPROM] class is but a thin wrapper around that!
 
- [k:d:s:Base]: ../src/kaleidoscope/driver/storage/Base.h
+ [k:d:s:Base]: ../../src/kaleidoscope/driver/storage/Base.h
  [chrysalis]: https://github.com/keyboardio/Chrysalis
- [k:d:s:AVREEPROM]: ../src/kaleidoscope/driver/storage/AVREEPROM.h
+ [k:d:s:AVREEPROM]: ../../src/kaleidoscope/driver/storage/AVREEPROM.h
 
 The `Storage` component does use Props, one that describes the length - or
-size - of it. We provide an [`ATMega32U4EEPROMProps`][k:d:s:a32u4props] helper,
+size - of it. We provide an [`ATmega32U4EEPROMProps`][k:d:s:a32u4props] helper,
-which is preconfigured for the 1k EEPROM size of the ATMega32U4.
+which is preconfigured for the 1k EEPROM size of the ATmega32U4.
 
- [k:d:s:a32u4props]: ../src/kaleidoscope/driver/storage/ATMega32U4EEPROMProps.h
+ [k:d:s:a32u4props]: ../../src/kaleidoscope/driver/storage/ATmega32U4EEPROMProps.h
 
 ### LEDs
 
 [`kaleidoscope::driver::led::Base`][k:d:l:Base]
 
- [k:d:l:Base]: ../src/kaleidoscope/driver/led/Base.h
+ [k:d:l:Base]: ../../src/kaleidoscope/driver/led/Base.h
 
 ### Keyscanner
 
 [`kaleidoscope::driver::keyscanner::Base`][k:d:ks:Base]
 
- [k:d:ks:Base]: ../src/kaleidoscope/driver/keyscanner/Base.h
+ [k:d:ks:Base]: ../../src/kaleidoscope/driver/keyscanner/Base.h
 
 ## Helpers
 
-[`kaleidoscope::device::ATMega32U4Keyboard`][k:d:a32u4k]
+[`kaleidoscope::device::ATmega32U4Keyboard`][k:d:a32u4k]
-[`kaleidoscope::driver::keyscanner::AVR`][k:d:ks:avr]
+[`kaleidoscope::driver::keyscanner::ATmega`][k:d:ks:atm]
 
- [k:d:a32u4k]: ../src/kaleidoscope/device/ATMega32U4Keyboard.h
+ [k:d:a32u4k]: ../../src/kaleidoscope/device/ATmega32U4Keyboard.h
- [k:d:ks:avr]: ../src/kaleidoscope/driver/keyscanner/AVR.h
+ [k:d:ks:atm]: ../../src/kaleidoscope/driver/keyscanner/ATmega.h
 
 ## Putting it all together
 
 To put things into perspective, and show a simple example, we'll build an
-imaginary mini keypad: `ATMega32U4` with `Caterina` as bootloader, no LEDs, and
+imaginary mini keypad: `ATmega32U4` with `Caterina` as bootloader, no LEDs, and
 four keys only.
 
 ### `ImaginaryKeypad.h`
@@ -157,9 +157,9 @@ four keys only.
 #ifdef ARDUINO_AVR_IMAGINARY_KEYPAD
 
 #include <Arduino.h>
-#include "kaleidoscope/driver/keyscanner/AVR.h"
+#include "kaleidoscope/driver/keyscanner/ATmega.h"
 #include "kaleidoscope/driver/bootloader/avr/Caterina.h"
-#include "kaleidoscope/device/ATMega32U4Keyboard.h"
+#include "kaleidoscope/device/ATmega32U4Keyboard.h"
 
 namespace kaleidoscope {
 namespace device {
@@ -175,7 +175,7 @@ struct KeypadProps : kaleidoscope::device::ATmega32U4KeyboardProps {
   };
 
   typedef kaleidoscope::driver::keyscanner::ATmega<KeyScannerProps> KeyScanner;
-  typedef kaleidoscope::driver::bootloader::avr::Caterina BootLoader;
+  typedef kaleidoscope::driver::bootloader::avr::Caterina Bootloader;
   static constexpr const char *short_name = "imaginary-keypad";
 };
 

docs/api-reference/event-handler-hooks.md

@@ -0,0 +1,257 @@
+# Kaleidoscope's Plugin Event Handlers
+
+Kaleidoscope provides a set of hook functions that plugins can define in order
+to do their work. If one or more of the functions listed here are defined as
+methods in a plugin class, that plugin can act on the input events that drive
+Kaleidoscope.
+
+In response to input events (plus a few other places), Kaleidoscope calls the
+event handlers for each plugin that defines them, in sequence.
+
+## Return values
+
+Every Kaleidoscope event handler function returns a value of type
+`EventHandlerResult`, an enum with several variants. In some handlers,
+Kaleidoscope ignores the return value, but for others, the result is used as a
+signal to control Kaleidoscope's behavior. In particular, some event handler
+hooks are "abortable". For those hooks, the return value of the plugin handlers
+are used to control what Kaleidoscope does after each plugin's event handler
+returns.
+
+- `EventHandlerResult::OK` is used to signal that Kaleidoscope should continue
+  on to the next handler in the sequence.
+
+- `EventHandlerResult::ABORT` is used to signal that Kaleidoscope should not
+  continue to call the other plugin handlers in the sequence, and stop
+  processing the event entirely. This is used by some plugins to cancel events
+  and/or delay them so that they occur at a later time, possibly with different
+  values.
+
+- `EventHandlerResult::EVENT_CONSUMED` is used to signal that the plugin has
+  successfully handled the event, and that there is nothing further to be done,
+  so there is no point in continuing to call further plugin event handlers for
+  the event.
+
+## Non-event "event" handlers
+
+There are three special "event" handlers that are not called in response to
+input events, but are instead called at fixed points during Kaleidoscope's run
+time.
+
+### `onSetup()`
+
+This handler is called when Kaleidoscope first starts. If a plugin needs to do
+some work after its constructor is called, but before Kaleidoscope enters its
+main loop and starts scanning for keyswitch events, it can do it in this
+function.
+
+### `beforeEachCycle()`
+
+This handler gets called at the beginning of every keyswitch scan cycle, before
+the scan. It can be used by plugins to do things that need to be done
+repeatedly, regardless of any input from the user. Typically, this involves
+things like checking for timeouts.
+
+### `afterEachCycle()`
+
+This is just like `beforeEachCycle()`, but gets called after the keyswitches
+have been scanned (and any input events handled).
+
+## Keyswitch input event handlers
+
+This group of event handlers is triggered when keys on the keyboard are pressed
+and released. With one exception, they use a `KeyEvent` object as their one
+parameter. The `KeyEvent` class encapsulates the essential data about a key
+press (or release):
+
+- `event.addr` contains the `KeyAddr` of the key that toggled on or off.
+
+- `event.state` contains information about the current and former state of the
+  key in the form of a `uint8_t` bitfield.
+
+- `event.key` contains the `Key` value of the event. For key presses, this is
+  generally determined by means of a keymap lookup. For releases, the value is
+  taken from the `live_keys` structure. Because the `event` is passed by
+  reference, changing this value in a plugin handler will affect which value
+  ends up in the `live_keys` array, and thus, the output of the keyboard.
+
+- `event.id` contains a `KeyEventId` value: an integer, usually monotonically
+  increasing. This is useful as a tool to allow plugins to avoid re-processing
+  the same event, thus avoiding infinite loops without resorting to an
+  `INJECTED` key state flag which would cause other plugins to ignore events
+  that they might otherwise be interested in.
+
+### `onKeyswitchEvent(KeyEvent &event)`
+
+This handler is called in response to changes detected in the state of
+keyswitches, via the `Runtime.handleKeyswitchEvent()` function. After the
+keyswitches are scanned in each cycle, Kaleidoscope goes through them all and
+compares the state of each one to its previous state. For any of them that have
+either toggled on or off, plugins that define this function get called (until
+one of them returns either `ABORT` or `EVENT_CONSUMED`).
+
+This handler should be defined by any plugin that is concerned only with
+physical keyswitch events, where the user has pressed or released a physical
+key. For example, plugins that determine key values based on the timing of these
+physical events should define this handler (for example, Qukeys and
+TapDance). Plugins that don't explicitly need to use this handler should define
+`onKeyEvent()` instead.
+
+Plugins that use this handler should abide by certain rules in order to interact
+with each other to avoid infinite loops. A plugin might return `ABORT` to delay
+an event (until some other event or a timeout occurs), then later re-start
+processing of the same event by calling `Runtime.handleKeyswitchEvent()`. When
+it does this, it must take care to use the same `KeyEventId` value as that
+event's `id` parameter, and it should also take care to preserve the order of
+any such events. This way, plugins implementing `onKeyswitchEvent()` are able
+to keep track of event id numbers that they have already processed fully, and
+ignore those events when plugins later in the sequence re-start them.
+
+In more specific detail, plugins that implement `onKeyswitchEvent()` must
+guarantee that the `event.id` values they emit when returning `OK` are
+monotonically increasing, and should only include `id` values that the plugin
+has already received as input. Additionally, such plugins must ignore any event
+with an `id` value that it has recently received and finished processing. The
+class `KeyEventTracker` can help simplify following these rules.
+
+### `onKeyEvent(KeyEvent &event)`
+
+After a physical keyswitch event is processed by all of the plugins with
+`onKeyswitchEvent()` handlers (and they all return `OK`), Kaleidoscope passes
+that event on to the `Runtime.handleKeyEvent()` function, which calls plugins'
+`onKeyEvent()` handlers. This is also the starting point for events which do not
+correspond to physical key events, and can have an invalid `event.addr` value.
+
+Plugins that need to respond to keyboard input, but which do not need to be
+closely tied to physical key events (and only those events) should use
+`onKeyEvent()` to do their work.
+
+After all `onKeyEvent()` handlers have returned `OK` for an event, the
+`live_keys` state array gets updated. For a key press event, the final
+`event.key` value gets inserted into `live_keys[event.addr]`. From that point
+on, the keyboard will behave as though a key with that value is being held until
+that entry in `live_keys` is cleared (most likely as a result of a key release
+event's `onKeyEvent()` handlers returning `OK`). Thus, if an `onKeyEvent()`
+handler returns `ABORT` for a key release event, the keyboard will behave as
+though that key is still held after it has been released. This is what enables
+plugins like OneShot to function, but it also means that plugin authors need to
+take care about returning `ABORT` (but not `EVENT_CONSUMED`) from an
+`onKeyEvent()` handler, because it could result in "stuck" keys.
+
+`onKeyEvent()` handlers should not store events and release them later (by
+calling `Runtime.handleKeyEvent()`), and must never call
+`Runtime.handleKeyswitchEvent()`.
+
+### `onAddToReport(Key key)`
+
+After the `onKeyEvent()` handlers have all returned `OK`, Kaleidoscope moves on
+to sending Keyboard HID reports. It clears the current report, and iterates
+through the `live_keys` array, looking for non-empty values, and adding them to
+the report. For System Control, Consumer Control, and Keyboard HID type `Key`
+values, Kaleidoscope handles adding the keycodes to the correct report, but it
+also calls this handler, in case a plugin needs to alter that report.
+
+A return value of `OK` allows Kaleidoscope to proceed with adding the
+corresponding keycode(s) to the HID report, and `ABORT` causes it to leave and
+keycodes from `key` out of the report.
+
+Note that this only applies to the Keyboard and Consumer Control HID reports,
+not the System Control report, which has different semantics, and only supports
+a single keycode at a time.
+
+### `beforeReportingState(const KeyEvent &event)`
+
+This gets called right before a set of HID reports is sent. At this point,
+plugins have access to a (tentative) complete HID report, as well as the full
+state of all live keys on the keyboard. This is especially useful for plugins
+that might need to do things like remove keycodes (such as keyboard modifiers)
+from the forthcoming report just before it gets sent.
+
+This event handler still has access to the event information for the event that
+triggered the report, but because it is passed as a `const` reference, it is no
+longer possible to change any of its values.
+
+[Note: The older version of `beforeReportingState()` got called once per cycle,
+regardless of the pattern of keyswitches toggling on and off, and many plugins
+used it as a place to do things like check for timeouts. This new version does
+not get called every cycle, so when porting old code to the newer handlers, it's
+important to move any code that must be called every cycle to either
+`beforeEachCycle()` or `afterEachCycle()`.]
+
+[Also note: Unlike the deprecated `beforeReportingState()`, this one is
+abortable. That is, if it returns a result other than `OK` it will stop the
+subsequent handlers from getting called, and if it returns `ABORT`, it will also
+stop the report from being sent.]
+
+### `afterReportingState(const KeyEvent &event)`
+
+This gets called after the HID report is sent.  This handler allows a plugin to
+react to an event, but wait until after that event has been fully processed to
+do so.  For example, the OneShot plugin releases keys that are in the "one-shot"
+state in response to key press events, but it does so after those triggering
+press events take place.
+
+## Other events
+
+### `onLayerChange()`
+
+Called whenever one or more keymap layers are activated or deactivated (just
+after the change takes place).
+
+### `onLEDModeChange()`
+
+Called by `LEDControl` whenever the active LED mode changes.
+
+### `beforeSyncingLeds()`
+
+Called immediately before Kaleidoscope sends updated color values to the
+LEDs. This event handler is particularly useful to plugins that need to override
+the active LED mode (e.g. LED-ActiveModColor).
+
+### `onFocusEvent()`
+
+### `onNameQuery()`
+
+### `exploreSketch()`
+
+## Deprecated
+
+Two existing "event" handlers have been deprecated. In the old version of
+Kaleidoscope's main loop, the keyboard's state information was stored in the
+keyscanner (which physical switches were on in the current and former scans),
+and in the HID reports. The Keyboard HID report would be cleared at the start of
+every cycle, and re-populated, on key at a time, calling every
+`onKeyswitchEvent()` handler for every active key. Then, once the tentative HID
+report was complete, the `beforeReportingState()` handlers would be called, and
+the complete report would be sent to the host. In most cycles, that report would
+be identical to the previous report, and would be suppressed.
+
+The new system stores the keyboard's current state in the `live_keys` array
+instead, and only calls event handlers in response to keyswitch state changes
+(and artificially generated events), ultimately sending HID reports in response
+to events, rather than at the end of every cycle.
+
+### `onKeyswitchEvent(Key &key, KeyAddr key_addr, uint8_t key_state)`
+
+This handler was called in every cycle, for every non-idle key. Its concept of
+an "event" included held keys that did not have a state change. These deprecated
+handlers are still called, in response to events and also when preparing the HID
+reports, but there is no longer a reasonable mechanism to call them in every
+cycle, for every active key, so some functionality could be lost.
+
+It is strongly recommended to switch to using one of the two `KeyEvent`
+functions instead, depending on the needs of the plugin (either `onKeyEvent()`
+if it is fit for the purpose, or `onKeyswitchEvent()` if necessary). The
+`onAddToReport()` function might also be useful, particularly if the plugin in
+question uses special `Key` values not recognized by Kaleidoscope itself, but
+which should result in keycodes being added to HID reports.
+
+### `beforeReportingState()`
+
+The old version of this handler has been deprecated, but it will still be called
+both before HID reports are sent and also once per cycle. It is likely that
+these handlers will continue to function, but the code therein should be moved
+either to the new `KeyEvent` version of `beforeReportingState()` and/or
+`afterEachCycle()` (or `beforeEachCycle()`), depending on whether it needs to be
+run only in response to input events or if it must execute every cycle,
+respectively.

docs/build_default_firmware.md

@@ -42,8 +42,6 @@ If something goes wrong, the status bar turns orange and displays an error messa
 
 ![](images/arduino-setup/verify-failed.png)
 
-If you see errors, refer to [Getting help](Getting-help) for troubleshooting tips and useful resources.
-
 # Install the firmware
 
 If your keyboard has a programming interlock key, you'll need to hold it down now. On the Keyboardio Model 01, this is the `Prog` key. On the Keyboardio Atreus, this is the `Esc` key.

docs/codebase/code-style.md

@@ -21,9 +21,11 @@ Our style guide is based on the [Google C++ style guide][goog:c++-guide] which w
   - [Header Files](#header-files)
     - [Self-contained Headers](#self-contained-headers)
     - [Header Guards](#header-guards)
+    - [Include What You Use](#include-what-you-use)
     - [Forward Declarations](#forward-declarations)
     - [Inline Functions](#inline-functions)
-    - [Names and Order of Includes](#names-and-order-of-includes)
+    - [Organization of Includes](#organization-of-includes)
+    - [Top-level Arduino Library Headers](#top-level-arduino-library-headers)
   - [Scoping](#scoping)
     - [Namespaces](#namespaces)
     - [Unnamed Namespaces and Static Variables](#unnamed-namespaces-and-static-variables)
@@ -130,6 +132,7 @@ Our style guide is based on the [Google C++ style guide][goog:c++-guide] which w
     - [Vertical Whitespace](#vertical-whitespace)
   - [Exceptions to the Rules](#exceptions-to-the-rules)
     - [Existing Non-conformant Code](#existing-non-conformant-code)
+  - [Maintenance Tools](#maintenance-tools)
   - [Parting Words](#parting-words)
 
 ## Background
@@ -258,6 +261,12 @@ There are rare cases where a file designed to be included is not self-contained.
 
 All header files should have `#pragma once` guards at the top to prevent multiple inclusion.
 
+### Include What You Use
+
+If a source or header file refers to a symbol defined elsewhere, the file should directly include a header file which provides a declaration or definition of that symbol.
+
+Do not rely on transitive inclusions.  This allows maintainers to remove no-longer-needed `#include` statements from their headers without breaking clients code.  This also applies to directly associated headers - `foo.cpp` should include `bar.h` if it uses a symbol defined there, even if `foo.h` (currently) includes `bar.h`.
+
 ### Forward Declarations
 
 > Avoid using forward declarations where possible. Just `#include` the headers you need.
@@ -311,66 +320,80 @@ Another useful rule of thumb: it's typically not cost effective to inline functi
 
 It is important to know that functions are not always inlined even if they are declared as such; for example, virtual and recursive functions are not normally inlined. Usually recursive functions should not be inline. The main reason for making a virtual function inline is to place its definition in the class, either for convenience or to document its behavior, e.g., for accessors and mutators.
 
-### Names and Order of Includes
+### Organization of Includes
 
-<!-- TODO: This section could be simplified, and clarified, I believe. -->
+> Use standard order for readability and to avoid hidden dependencies:
+> - The header associated with this source file, if any
+> - System headers and Arduino library headers (including other Kaleidoscope plugins, but not Kaleidoscope itself)
+> - Kaleidoscope headers and headers for the individual plugin (other than the associated header above)
 
-> Use standard order for readability and to avoid hidden dependencies: Related header, Arduino libraries, other libraries' `.h`, your project's `.h`.
+These three sections should be separated by single blank lines, and should be sorted alphabetically.
 
-All libraries must have at least one header in their top-level `src/` directory, to be included without any path components. This is the way Arduino finds libraries, and a limitation we must adhere to. These headers should - in general - include any other headers they may need, so that the consumer of the library only has to include one header. The name of this header must be the same as the name of the library.
+When including system headers and Arduino library headers (including Kaleidoscope plugins), use angle brackets to indicate that those sources are external.
+
+For headers inside the current library and for Kaleidoscope core headers, use double quotes and a full pathname (starting below the `src/` directory).  This applies to the source file's associated header, as well; don't use a pathname relative to the source file's directory.
 
-The recommended naming is to prefix the library name with `Kaleidoscope-`.
+For the sake of clarity, the above sections can be further divided to make it clear where each included header file can be found, but this is probably not necessary in most cases, because the path name of a header usually indicates which library it is located in.
 
-If there is more than one header, they should be listed as descendants of the project's source directory without use of UNIX directory shortcuts `.` (the current directory) or `..` (the parent directory), and live in a `Kaleidoscope` subdirectory. For example, if we have a plugin named `Kaleidoscope-Something`, which has an additional header file other than `Kaleidoscope-Something.h`, it should be in `src/Kaleidoscope/Something-Other.h`, and be included as:
+For example, the includes in `Kaleidoscope-Something/src/kaleidoscope/Something.cpp` might look like this:
 
 ```c++
-#include "Kaleidoscope-Something.h"
+#include "kaleidoscope/Something.h"
-#include "Kaleidoscope/Something-Other.h"
+
+#include <Arduino.h>
+#include <Kaleidoscope-Ranges.h>
+#include <stdint.h>
+
+#include "kaleidoscope/KeyAddr.h"
+#include "kaleidoscope/KeyEvent.h"
+#include "kaleidoscope/key_defs.h"
+#include "kaleidoscope/plugin/something/utils.h"
 ```
 
-Having more than one level of subdirectories is not recommended.
+**Exception**
 
-In `dir/foo.cpp` or `dir/foo_test.cpp`, whose main purpose is to implement or test the stuff in `dir2/foo2.h`, order your includes as follows:
+Sometimes, system-specific code needs conditional includes. Such code can put conditional includes after other includes. Of course, keep your system-specific code small and localized. Example:
 
-1. `dir2/foo2.h`
+```c++
-2. Arduino libraries.
+#if defined(ARDUINO_AVR_MODEL01)
-3. Other libraries' `.h` files.
+#include "kaleidoscope/Something-AVR-Model01.h"
-4. Your project's `.h` files.
+#endif
 
-With the preferred ordering, if `dir2/foo2.h` omits any necessary includes, the build of `dir/foo.cpp` or `dir/foo_test.cpp` will break. Thus, this rule ensures that build breakages show up first for the people working on these files, not for innocent people in other packages.
+#if defined(ARDUINO_AVR_SHORTCUT)
+#include "kaleidoscope/Something-AVR-Shortcut.h"
+#endif
+```
 
-`dir/foo.cc` and `dir2/foo2.h` are usually in the same directory (e.g. `Kaleidoscope/Something_test.cpp` and `Kaleidoscope/Something.h`), but may sometimes be in different directories too.
+### Top-level Arduinio Library Headers
 
-Within each section the includes should be ordered alphabetically.
+All libraries must have at least one header in their top-level `src/` directory, to be included without any path components. This is the way Arduino finds libraries, and a limitation we must adhere to. These headers should - in general - include any other headers they may need, so that the consumer of the library only has to include one header. The name of this header must be the same as the name of the library.
 
-You should include all the headers that define the symbols you rely upon, except in the unusual case of [forward declarations](#forward-declarations). If you rely on symbols from `bar.h`, don't count on the fact that you included `foo.h` which (currently) includes `bar.h`: include `bar.h` yourself, unless `foo.h` explicitly demonstrates its intent to provide you the symbols of `bar.h`. However, any includes present in the related header do not need to be included again in the related `cc` (i.e., `foo.cc` can rely on `foo.h`'s includes).
+The naming convention for Kaleidoscope plugins is to use the `Kaleidoscope-` prefix: e.g. `Kaleidoscope-Something`, which would have a top-level header named `Kaleidoscope-Something.h` in its `src/` directory.
 
-For example, the includes in `Kaleidoscope-Something/src/Kaleidoscope/Something.cpp` might look like this:
+In the case of Kaleidoscope plugin libraries, the number of source and header files tends to be very small (usually just one `*.cpp` file and its associated header, in addition to the library's top-level header).  When one plugin depends on another, we therefore only include the top-level header of the dependency.  For example, if `Kaleidoscope-OtherThing` depends on `Kaleidoscope-Something`, the file `kaleidoscope/plugin/OtherThing.h` will contain the line:
 
 ```c++
-#include "Kaleidoscope/Something.h"
+#include <Kaleidoscope-Something.h>
+```
 
-#include "Arduino.h"
+…and `Kaleidoscope-Something.h` will look like this:
 
-#include "Kaleidoscope-LEDControl.h"
+```c++
-#include "Kaleidoscope-Focus.h"
+#include "kaleidoscope/plugin/Something.h"
 ```
 
-**Exception**
+This both makes it clearer where to find the included code, and allows the restructuring of that code without breaking the dependent library (assuming the symbols haven't changed as well).
 
-Sometimes, system-specific code needs conditional includes. Such code can put conditional includes after other includes. Of course, keep your system-specific code small and localized. Example:
+If a plugin library has symbols meant to be exported, and more than one header file in which those symbols are defined, all such header files should be included in the top-level header for the library.  For example, if `Kaleidoscope-Something` defines types `kaleidoscope::plugin::Something` and `kaleidoscope::plugin::something::Helper`, both of which are meant to be accessible by `Kaleidoscope-OtherThing`, the top-level header `Kaleidoscope-Something.h` should look like this:
 
 ```c++
-#include "Kaleidoscope.h"
+#include "kaleidoscope/plugin/Something.h"
+#include "kaleidoscope/plugin/something/Helper.h"
+```
 
-#if defined(ARDUINO_AVR_MODEL01)
+### Automated header includes checking
-#include "Kaleidoscope/Something-AVR-Model01.h"
-#endif
 
-#if defined(ARDUINO_AVR_SHORTCUT)
+We have an automated wrapper for the `include-what-you-use` program from LLVM that processes most Kaleidoscope source files and updates their header includes to comply with the style guide.  It requires at least version 0.18 of `include-what-you-use` in order to function properly (because earlier versions do not return a useful exit code, so determining if there was an error was difficult).  It can be run by using the `make check-includes` target in the Kaleidoscope Makefile.
-#include "Kaleidoscope/Something-AVR-Shortcut.h"
-#endif
-```
 
 <!-- TODO: Finish converting the rest... -->
 
@@ -2380,7 +2403,7 @@ New code should not contain calls to deprecated interface points. Use the new in
 
 Coding style and formatting are pretty arbitrary, but a project is much easier to follow if everyone uses the same style. Individuals may not agree with every aspect of the formatting rules, and some of the rules may take some getting used to, but it is important that all project contributors follow the style rules so that they can all read and understand everyone's code easily.
 
-To help you format code correctly, we use "Artistic Style" 3.0. The `make astyle` target is available in the Kaleidoscope and plugin Makefiles. Our CI infrastructure enforces `astyle`'s decisions.
+To help format code in compliance with this style guide, we use `clang-format`, which many editors can be configured to call automatically.  There is also `make format` target available in the Kaleidoscope Makefile that will use `clang-format` to format all the core and plugin code.  Our CI infrastructure checks to ensure that code has been formatted to these specifications.
 
 ### Line Length
 
@@ -3133,6 +3156,40 @@ The coding conventions described above are mandatory. However, like all good rul
 
 If you find yourself modifying code that was written to specifications other than those presented by this guide, you may have to diverge from these rules in order to stay consistent with the local conventions in that code. If you are in doubt about how to do this, ask the original author or the person currently responsible for the code. Remember that *consistency* includes local consistency, too.
 
+## Maintenance Tools
+
+Kaleidoscope uses some automated tools to enforce compliance with this code style guide.  Primarily, we use `clang-format` to format source files, `cpplint` to check for potential problems, and `include-what-you-use` to update header includes.  These are invoked using python scripts that supply all of the necessary command-line parameters to both utilities.  For convenience, there are also some shell scripts and makefile targets that further simplify the process of running these utilities properly.
+
+### Code Formatting
+
+We use `clang-format`(version 12 or higher) to automatically format Kaleidoscope source files.  There is a top-level `.clang-format` config file that contains the settings that best match the style described in this guide.  However, there are some files in the repository that are, for one reason or another, exempt from formatting in this way, so we use a wrapper script, `format-code.py`, instead of invoking it directly.
+
+`format-code.py` takes a list of target filenames, either as command-line parameters or from standard input (if reading from a pipe, with each line treated as a filename), and formats those files.  If given a directory target, it will recursively search that directory for source files, and format all of the ones it finds.
+
+By default, `format-code.py` will first check for unstaged changes in the Kaleidoscope git working tree, and exit before formatting source files if any are found.  This is meant to make it easier for developers to see the changes made by the formatter in isolation.  It can be given the `--force` option to skip this check.
+
+It also has a `--check` option, which will cause `format-code.py` to check for unstaged git working tree changes after running `clang-format` on the target source files, and return an error code if there are any, allowing us to automatically verify that code submitted complies with the formatting rules.
+
+The easiest way to invoke the formatter on the whole repository is by running `make format` at the top level of the Kaleidoscope repository.
+
+For automated checking of PRs in a CI tool, there is also `make check-code-style`.
+
+### Linting
+
+We use a copy of `cpplint.py` (with a modification that allows us to set the config file) to check for potential problems in the code.  This can be invoked by running `make cpplint` at the top level of the Kaleidoscope repository.
+
+### Header Includes
+
+We use `include-what-you-use` (version 18 or higher) to automatically manage header includes in Kaleidoscope source files.  Because of the peculiarities of Kaleidoscope's build system, we use a wrapper script, `iwyu.py`, instead of invoking it directly.
+
+`iwyu.py` takes a list of target filenames, either as command-line parameters or from standard input (if reading from a pipe, with each line treated as a filename), and makes changes to the header includes.  If given a directory target, it will recursively search that directory for source files, and run `include-what-you-use` on all of the ones it finds.
+
+A number of files can't be processed this way, and are enumerated in `.iwyu_ignore`.  Files in the `testing` directory (for the test simulator) require different include path items, so cannot be combined in the same call to `iwyu.py`.
+
+The easiest way to invoke `iwyu.py` is by running `make check-includes`, which will check all files that differ between the git working tree and the current master branch of the main Kaleidoscope repository, update their headers, and return a non-zero exit code if there were any errors processing the file(s) or any changes made.
+
+For automated checking of header includes in a CI tool, there is also `make check-all-includes`, that checks the whole repository, not just the current branch's changes.
+
 ## Parting Words
 
 Use common sense and *BE CONSISTENT*.

docs/codebase/docker.md

@@ -0,0 +1,25 @@
+# Docker
+
+It's possible to use Docker to run Kaleidoscope's test suite.
+
+## Running tests in Docker
+
+```
+# make docker-simulator-tests
+```
+
+## Cleaning out stale data in the Docker image:
+
+```
+# make docker-clean
+```
+
+
+## Removing the Kaleidoscope Docker image entirely:
+
+```
+# docker volume rm kaleidoscope-persist
+# docker volume rm kaleidoscope-googletest-build
+# docker volume rm kaleidoscope-build
+# docker image rm kaleidoscope/docker
+```

docs/codebase/glossary.md

@@ -4,13 +4,82 @@ This document is intended to name and describe the concepts, functions and data
 
 It is, as yet, incredibly incomplete.
 
-Entries should be included in dictionary order. When describing an identifier of any kind from the codebase, it should be
+When describing an identifier of any kind from the codebase, it should be
 written using identical capitalization to its use in the code and surrounded by backticks: `identifierName`
 
 ## Firmware Terminology
 
 These terms commonly arise when discussing the firmware.
 
+### Keyswitch
+
+A single physical input, such as a keyswitch or other input like a knob or a slider
+
+### Key number
+
+An integer representing a Keyswitch’s position in the “Physical Layout”. Represented in the code by the `KeyAddr` type.
+
+### Physical Layout
+
+A mapping of keyswitches to key numbers
+
+### Key binding
+
+A mapping from a key number to a behavior. 
+
+### `Key`
+
+A representation of a specific behavior. Most often a representation of a specific entry in the USB HID Usage Tables.
+
+### Keymap
+
+A list of key bindings for all keyswitchess on the Physical Layout. Represented in the code by the `KeyMap` type.
+
+### Keymaps
+
+An ordered list of all the Keymaps installed on a keyboard. 
+
+### Layer
+
+An entry in that ordered list of keymaps. Each layer has a unique id number that does not change. Layer numbers start at 0.
+
+### Active Layer Stack
+
+An ordered list of all the currently-active layers, in the order they should be evaluated when figuring out what a key does.
+
+### Live keys
+
+A representation of the current state of the keyboard's keys, where non-transparent entries indicate keys that are active (logically—usually, but not necessarily, physically held). Represented in the code by the `LiveKeys` type (and the `live_keys` object).
+
+#### Active/inactive keys
+
+In the `live_keys[]` array, an _active_ key usually corresponds to a keyswitch that is physically pressed.  In the common case of HID Keyboard keys, an active key will result in one or more keycodes being inserted in any new HID report.  In some cases, an key can be active when its physical keyswitch is not pressed (e.g. OneShot keys that have been tapped), and in other cases a key might be _inactive_ even though its keyswitch is pressed (e.g. a Qukeys key whose value has not yet been resolved).  Inactive keys are represented in the `live_keys[]` array by the special value `Key_Inactive`.
+
+#### Masked keys
+
+In the `live_keys[]` array, a _masked_ key is one whose next key press (either physical or logical) will be ignored.  A masked key is automatically unmasked the next time it toggles off.  Masked keys are represented by the special value `Key_Masked`.
+
+## Keyswitch state
+
+### Pressed
+
+The state of a keyswitch that has been actuated by the user or a routine acting on behalf of the user 
+
+### Unpressed
+
+The state of a keyswitch that is not currently actuated
+
+### Toggled on
+
+The state of a keyswitch that was not pressed during the last scan cycle and is now pressed.
+
+### Toggled off
+
+The state of a keyswitch that was pressed during the last scan cycle and is no longer pressed.
+
+
+
+
 ### Cycle
 
 The `loop` method in one's sketch file is the heart of the firmware. It runs -

docs/codebase/release-testing.md

@@ -1,97 +0,0 @@
-# Release testing
-
-Before a new release of Kaleidoscope, the following test process should be run through on all supported operating systems.
-
-(As of August 2017, this whole thing really applies to Model01-Firmware, but we hope to generalize it to Kaleidoscope)
-
-# Tested operating systems
-
-* The latest stable Ubuntu Linux release running X11. (We _should_ eventually be testing both X11 and Wayland)
-* The latest stable release of macOS
-* An older Mac OS X release TBD. (There were major USB stack changes in 10.9 or so)
-* Windows 10
-* Windows 7
-* The current release of ChromeOS
-* A currentish android tablet that supports USB Host
-* an iOS device (once we fix the usb connection issue to limit power draw)
-
-# Test process
-
-## Basic testing
-1. Plug the keyboard in
-1. Make sure the host OS doesn't throw an error
-1. Make sure the LED in the top left doesn't glow red
-1. Make sure the LED in the top-right corner of the left side breathes blue for ~10s
-1. Bring up some sort of notepad app or text editor
-
-## Basic testing, part 2
-
-1. Test typing of shifted and unshifted letters and numbers with and without key repeat
-1. Test typing of fn-shifted characters: []{}|\ with and without key repeat
-1. Test that 'Any' key generates a random letter or number and that key repeat works
-1. Test fn-hjkl to move the cursor
-1. Test Fn-WASD to move the mouse
-1. Test Fn-RFV for the three mouse buttons
-1. Test Fn-BGTabEsc for mouse warp
-1. Test that LeftFn+RightFn + hjkl move the cursor
-1. Verify that leftfn+rightfn do not light up the numpad
-
-## NKRO
-
-1. Open the platform's native key event viewer
-   (If not available, visit https://www.microsoft.com/appliedsciences/KeyboardGhostingDemo.mspx in a browser)
-1. Press as many keys as your fingers will let you
-1. Verify that the keymap reports all the keys you're pressing
-
-
-## Test media keys
-
-1. Fn-Any: previous track
-1. Fn-Y: next-track
-1. Fn-Enter: play/pause
-1. Fn-Butterfly: Windows 'menu' key
-1. Fn-n: mute
-1. Fn-m: volume down
-1. Fn-,: volume up
-
-## Test numlock
-
-1. Tap "Num"
-1. Verify that the numpad lights up red
-1. Verify that the num key is breathing blue
-1. Verify that numpad keys generate numbers
-1. Tap the Num key
-1. Verify that the numpad keys stop being lit up
-1 Verify that 'jkl' don't generate numbers.
-
-## Test LED Effects 
-
-1. Tap the LED key
-1. Verify that there is a rainbow effect
-1. Tap the LED key a few more times and verify that other LED effects show up
-1. Verify that you can still type.
-
-## Second connection
-1. Unplug the keyboard
-1. Plug the keyboard back in
-1. Make sure you can still type
-
-## Programming
-1. If the OS has a way to show serial port devices, verify that the keyboard's serial port shows up.
-1. If you can run stty, as you can on linux and macos, make sure you can tickle the serial port at 1200 bps.
-    Linux: stty -F /dev/ttyACM0 1200
-    Mac: 
-1. If you tickle the serial port without holding down the prog key, verify that the Prog key does not light up red
-1. If you hold down the prog key before tickling the serial port, verify that the Prog key's LED lights up red.
-1. Unplug the keyboard
-1. While holding down prog, plug the keyboard in
-1. Verify that the prog key is glowing red.
-1. Unplug the keyboard
-1. Plug the keyboard in
-1. Verify that the prog key is not glowing red.
-
-# If the current platform supports the Arduino IDE (Win/Lin/Mac)
-1. use the Arduino IDE to reflash the current version of the software.
-1. Verify that you can type a few keys
-1. Verify that the LED key toggles between LED effects
-

docs/conf.py

@@ -100,6 +100,8 @@ html_theme_options = {
     'style_external_links': False,
     'vcs_pageview_mode': '',
     'style_nav_header_background': 'white',
+    "display_github": False, # Add 'Edit on Github' link instead of 'View page source'
+
     # Toc options
 
     'collapse_navigation': True,

docs/customization/core-plugins.md

@@ -3,11 +3,13 @@
 This is an annotated list of some of Kaleidoscope's most important core plugins. You may also want to consult the [automatically generated list of all plugins bundled with Kaleidoscope](../plugin_list).
 
 
-You can find a list of third-party plugins not distributed as part of Kaleidoscope at https://community.keyboard.io/c/programming/Discuss-Plugins-one-thread-per-plugin
+You can find a list of third-party plugins not distributed as part of Kaleidoscope [on the forums][forum:plugin-list].
+
+ [forum:plugin-list]:  https://community.keyboard.io/c/programming/discuss-kaleidoscope-plugins-one-thread-per-plugin/
 
 ## EEPROM-Keymap
 
-[EEPROM-Keymap Documentation](../plugins/EEPROM-Keymap.md)
+[EEPROM-Keymap Documentation](../plugins/Kaleidoscope-EEPROM-Keymap.md)
 
 While keyboards usually ship with a keymap programmed in, to be able to change that keymap, without flashing new firmware, we need a way to place the keymap into a place we can update at run-time, and which persists across reboots. Fortunately, we have a bit of EEPROM on the keyboard, and can use it to store either the full keymap (and saving space in the firmware then), or store an overlay there. In the latter case, whenever there is a non-transparent key on the overlay, we will use that instead of the keyboard default.
 
@@ -15,21 +17,13 @@ In short, this plugin allows us to change our keymaps, without having to compile
 
 ## Escape-OneShot
 
-[Escape-OneShot Documentation](../plugins/Escape-OneShot.md)
+[Escape-OneShot Documentation](../plugins/Kaleidoscope-Escape-OneShot.md)
 
 Turn the Esc key into a special key, that can cancel any active OneShot effect - or act as the normal Esc key if none are active. For those times when one accidentally presses a one-shot key, or change their minds.
 
-## KeyLogger
-
-[KeyLogger Documentation](../plugins/KeyLogger.md)
-
-The KeyLogger plugin, as the name suggests, implements a key logger for the Kaleidoscope firmware. It logs the row and column of every key press and release, along with the event, and the layer number, in a format that is reasonably easy to parse, to the Serial interface.
-
-**A word of warning**: Having a key logger is as dangerous as it sounds. Anyone who can read the serial events from the keyboard, will know exactly what keys you press, and when. Unless you know what you are doing, and can secure your keyboard, do not enable this plugin.
-
 ## Leader
 
-[Leader Documentation](../plugins/Leader.md)
+[Leader Documentation](../plugins/Kaleidoscope-Leader.md)
 
 Leader keys are a kind of key where when they are tapped, all following keys are swallowed, until the plugin finds a matching sequence in the dictionary, it times out, or fails to find any possibilities. When a sequence is found, the corresponding action is executed, but the processing still continues. If any key is pressed that is not the continuation of the existing sequence, processing aborts, and the key is handled normally.
 
@@ -39,7 +33,7 @@ So we put ``LEAD u`` and ``LEAD u h e a r t`` in the dictionary only. The first
 
 ## Macros
 
-[Macros Documentation](../plugins/Macros.md)
+[Macros Documentation](../plugins/Kaleidoscope-Macros.md)
 
 Macros are a standard feature on many keyboards and powered ones are no exceptions. Macros are a way to have a single key-press do a whole lot of things under the hood: conventionally, macros play back a key sequence, but with Kaleidoscope, there is much more we can do. Nevertheless, playing back a sequence of events is still the primary use of macros.
 
@@ -47,7 +41,7 @@ Playing back a sequence means that when we press a macro key, we can have it pla
 
 ## MagicCombo
 
-[MagicCombo Documentation](../plugins/MagicCombo.md)
+[MagicCombo Documentation](../plugins/Kaleidoscope-MagicCombo.md)
 
 The MagicCombo extension provides a way to perform custom actions when a particular set of keys are held down together. The functionality assigned to these keys are not changed, and the custom action triggers as long as all keys within the set are pressed. The order in which they were pressed do not matter.
 
@@ -55,7 +49,7 @@ This can be used to tie complex actions to key chords.
 
 ## OneShot
 
-[OneShot Documentation](../plugins/OneShot.md)
+[OneShot Documentation](../plugins/Kaleidoscope-OneShot.md)
 
 One-shots are a new kind of behaviour for your standard modifier and momentary layer keys: instead of having to hold them while pressing other keys, they can be tapped and released, and will remain active until any other key is pressed. In short, they turn ``Shift, A`` into ``Shift+A``, and ``Fn, 1`` to ``Fn+1``. The main advantage is that this allows us to place the modifiers and layer keys to positions that would otherwise be awkward when chording. Nevertheless, they still act as normal when held, that behaviour is not lost.
 
@@ -65,7 +59,7 @@ To make multi-modifier, or multi-layer shortcuts possible, one-shot keys remain
 
 ## Qukeys
 
-[Qukeys Documentation](../plugins/Qukeys.md)
+[Qukeys Documentation](../plugins/Kaleidoscope-Qukeys.md)
 
 A Qukey is a key that has two possible values, usually a modifier and a printable character. The name is a play on the term "qubit" (short for "quantum bit") from quantum computing. The value produced depends on how long the key press lasts, and how it is used in combination with other keys (roughly speaking, whether the key is "tapped" or "held").
 
@@ -77,7 +71,7 @@ It is also possible to use Qukeys like SpaceCadet (see below), by setting the pr
 
 ## ShapeShifter
 
-[ShapeShifter Documentation](../plugins/ShapeShifter.md)
+[ShapeShifter Documentation](../plugins/Kaleidoscope-ShapeShifter.md)
 
 ShapeShifter is a plugin that makes it considerably easier to change what symbol is input when a key is pressed together with ``Shift``. If one wants to rearrange the symbols on the number row for example, without modifying the layout on the operating system side, this plugin is where one can turn to.
 
@@ -85,7 +79,7 @@ What it does, is very simple: if any key in its dictionary is found pressed whil
 
 ## SpaceCadet
 
-[SpaceCadet Documentation](../plugins/SpaceCadet.md)
+[SpaceCadet Documentation](../plugins/Kaleidoscope-SpaceCadet.md)
 
 Space Cadet is a way to make it more convenient to input parens - those ``(`` and ``)`` things -, symbols that a lot of programming languages use frequently. If you are working with Lisp, you are using these all the time.
 
@@ -97,7 +91,7 @@ After getting used to the Space Cadet style of typing, you may wish to enable th
 
 ## TapDance
 
-[TapDance Documentation](../plugins/TapDance.md)
+[TapDance Documentation](../plugins/Kaleidoscope-TapDance.md)
 
 Tap-dance keys are general purpose, multi-use keys, which trigger a different action based on the number of times they were tapped in sequence. As an example to make this clearer, one can have a key that inputs ``A`` when tapped once, inputs ``B`` when tapped twice, and lights up the keyboard in Christmas colors when tapped a third time.
 
@@ -119,7 +113,6 @@ There is one additional value the tapDanceAction parameter can ``take: kaleidosc
 
 ## TopsyTurvy
 
-[TopsyTurvy Documentation](../plugins/TopsyTurvy.md)
+[TopsyTurvy Documentation](../plugins/Kaleidoscope-TopsyTurvy.md)
 
 TopsyTurvy is a plugin that inverts the behaviour of the Shift key for some selected keys. That is, if configured so, it will input ``!`` when pressing the ``1`` key without ``Shift``, but with the modifier pressed, it will input the original ``1`` symbol.
-

docs/customization/plugin-authors-guide.md

@@ -0,0 +1,458 @@
+# How to write a Kaleidoscope plugin
+
+This is a brief guide intended for those who want to write custom Kaleidoscope plugins.  It covers basic things you'll need to know about how Kaleidoscope calls plugin event handlers, and how it will respond to actions taken by those plugins.
+
+## What can a plugin do?
+
+There are many things that Kaleidoscope plugins are capable of, from LED effects, serial communication with the host, altering HID reports, and interacting with other plugins.  It's useful to break these capabilities down into some broad categories, based on the types of input a plugin can respond to.
+
+- Key events (key switches toggling on and off)
+- Focus commands (sent to the keyboard from software on the host via the serial port)
+- LED updates
+- Keymap layer changes
+- Timers
+
+## An example plugin
+
+To make a Kaleidoscope plugin, we create a subclass of the `kaleidoscope::Plugin` class, usually in the `kaleidoscope::plugin` namespace:
+
+```c++
+namespace kaleidoscope {
+namespace plugin {
+
+class MyPlugin : public Plugin {};
+
+} // namespace kaleidoscope
+} // namespace plugin
+```
+
+This code can be placed in a separate C++ source file, but it's simplest to just define it right in the sketch's \*.ino file for now.
+
+By convention, we create a singleton object named like the plugin's class in the global namespace.  This is typical of Arduino code.
+
+```c++
+kaleidoscope::plugin::MyPlugin MyPlugin;
+```
+
+Next, in order to connect that plugin to the Kaleidoscope event handler system, we need to register it in the call to the preprocessor macro `KALEIDOSCOPE_INIT_PLUGINS()` in the sketch:
+
+```c++
+KALEIDOSCOPE_INIT_PLUGINS(MyPlugin, OtherPlugin);
+```
+
+To make our plugin do anything useful, we need to add [[event-handler-hooks]] to it.  This is how Kaleidoscope delivers input events to its registered plugins.  Here's an example:
+
+```c++
+class MyPlugin : public Plugin {
+ public:
+  EventHandlerResult onKeyEvent(KeyEvent &event);
+};
+```
+
+This will result in `MyPlugin.onKeyEvent()` being called (along with other plugins' `onKeyEvent()` methods) when Kaleidoscope detects a key state change.  This function returns one of three `EventHandlerResult` values:
+
+- `EventHandlerResult::OK` indicates that Kaleidoscope should proceed on to the event handler for the next plugin in the chain.
+- `EventHandlerResult::ABORT` indicates that Kaleidoscope should stop processing immediately, and treat the event as if it didn't happen.
+- `EventHandlerResult::EVENT_CONSUMED` stops event processing like `ABORT`, but records that the key is being held.
+
+The `onKeyEvent()` method takes one argument: a reference to a `KeyEvent` object, which is a simple container for these essential bits of information:
+
+- `event.addr` — the physical location of the keyswitch, if any
+- `event.state` — a bitfield containing information on the current and previous state of the keyswitch (from which we can find out if it just toggled on or toggled off)
+- `event.key` — a 16-bit `Key` value containing the contents looked up from the sketch's current keymap (if the key just toggled on) or the current live value of the key (if the key just toggled off)
+
+Because the `KeyEvent` parameter is passed by (mutable) reference, our plugin's `onKeyEvent()` method can alter the components of the event, causing subsequent plugins (and, eventually, Kaleidoscope itself) to treat it as if it was a different event.  In practice, except in very rare cases, the only member of a `KeyEvent` that a plugin should alter is `event.key`.  Here's a very simple `onKeyEvent()` handler that changes all `X` keys into `Y` keys:
+
+```c++
+EventHandlerResult onKeyEvent(KeyEvent &event) {
+  if (event.key == Key_X)
+    event.key = Key_Y;
+  return EventHandlerResult::OK;
+}
+```
+
+### The difference between `ABORT` & `EVENT_CONSUMED`
+
+Here's a plugin that will suppress all `X` key events:
+
+```c++
+EventHandlerResult onKeyEvent(KeyEvent &event) {
+  if (event.key == Key_X)
+    return EventHandlerResult::ABORT;
+  return EventHandlerResult::OK;
+}
+```
+
+Here's an almost identical plugin that has an odd failure mode:
+
+```c++
+EventHandlerResult onKeyEvent(KeyEvent &event) {
+  if (event.key == Key_X)
+    return EventHandlerResult::EVENT_CONSUMED;
+  return EventHandlerResult::OK;
+}
+```
+
+In this case, when an `X` key is pressed, no Keyboard HID report will be generated and sent to the host, but the key will still be recorded by Kaleidoscope as "live".  If we hold that key down and press a `Y` key, we will suddenly see both `x` _and_ `y` in the output on the host.  This is because returning `ABORT` suppresses the key event entirely, as if it never happened, whereas `EVENT_CONSUMED` signals to Kaleidoscope that the key should still become "live", but that no further processing is necessary.  In this case, since we want to suppress all `X` keys entirely, we should return `ABORT`.
+
+### A complete in-sketch plugin
+
+Here's an example of a very simple plugin, defined as it would be in a firmware sketch (e.g. a `*.ino` file):
+
+```c++
+namespace kaleidoscope {
+namespace plugin {
+
+class KillX : public Plugin {
+ public:
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_X)
+      return EventHandlerResult::ABORT;
+    return EventHandlerResult::OK;
+  }
+};
+
+} // namespace kaleidoscope
+} // namespace plugin
+
+kaleidoscope::plugin::KillX;
+```
+
+On its own, this plugin won't have any effect unless we register it later in the sketch like this:
+
+```c++
+KALEIDOSCOPE_INIT_PLUGINS(KillX);
+```
+
+Note: `KALEIDOSCOPE_INIT_PLUGINS()` should only appear once in a sketch, with a list of all the plugins to be registered.
+
+## Plugin registration order
+
+Obviously, the `KillX` plugin isn't very useful.  But more important, it's got a potential problem.  Suppose we had another plugin defined, like so:
+
+```c++
+namespace kaleidoscope {
+namespace plugin {
+
+class YtoX : public Plugin {
+ public:
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_Y)
+      event.key = Key_X;
+    return EventHandlerResult::OK;
+  }
+};
+
+} // namespace kaleidoscope
+} // namespace plugin
+
+kaleidoscope::plugin::YtoX;
+```
+
+`YtoX` changes any `Y` key to an `X` key.  These two plugins both work fine on their own, but when we put them together, we get some undesirable behavior.  Let's try it this way first:
+
+```c++
+KALEIDOSCOPE_INIT_PLUGINS(YtoX, KillX);
+```
+
+This registers both plugins' event handlers with Kaleidoscope, in order, so for each `KeyEvent` generated in response to a keyswitch toggling on or off, `YtoX.onKeyEvent(event)` will get called first, then `KillX.onKeyEvent(event)` will get called.
+
+If we press `X`, the `YtoX` plugin will effectively ignore the event, allowing it to pass through to `KillX`, which will abort the event.
+
+If we press `Y`, `YtoX.onKeyEvent()` will change `event.key` from `Key_Y` to `Key_X`.  Then, `KillX.onKeyEvent()` will abort the event.  As a result, both `X` and `Y` keys will be suppressed by the combination of the two plugins.
+
+---
+
+Now, let's try the same two plugins in the other order:
+
+```c++
+KALEIDOSCOPE_INIT_PLUGINS(KillX, YtoX);
+```
+
+If we press `X`, its keypress event will get aborted by `KillX.onKeyEvent()`, and that key will not become live, so when it gets released, the event generated won't have the value `Key_X`, but will instead by `Key_Inactive`, which will not result in anything happening, either from the plugins or from Kaleidoscope itself.
+
+Things get interesting if we press and release `Y`, though.  First, `KillX.onKeyEvent()` will simply return `OK`, allowing `YtoX.onKeyEvent()` to change `event.key` from `Key_Y` to `Key_X`, causing that `Key_X` to become live, and sending its keycode to the host in the Keyboard USB HID report.  That's all as expected, but then we release the key, and that's were it goes wrong.
+
+`KillX.onKeyEvent()` doesn't distinguish between presses and releases.  When a key toggles off, rather than looking up that key's value in the keymap, Kaleidoscope takes it from the live keys array.  That means that `event.key` will be `Key_X` when `KillX.onKeyEvent()` is called, which will result in that event being aborted.  And when an event is aborted, the key's entry in the live keys array doesn't get updated, so Kaleidoscope will treat it as if the key is still held after release.  Thus, far from preventing the keycode for `X` getting to the host, it keeps that key pressed forever!  The `X` key becomes "stuck on" because the plugin suppresses both key _presses_ and key _releases_.
+
+### Differentiating between press and release events
+
+There is a solution to this problem, which is to have `KillX` suppress `Key_X` toggle-on events, but not toggle-off events:
+
+```c++
+EventHandlerResult KillX::onKeyEvent(KeyEvent &event) {
+  if (event.key == Key_X && keyToggledOn(event.state))
+    return EventHandlerResult::ABORT;
+  return EventHandlerResult::OK;
+}
+```
+
+Kaleidoscope provides `keyToggledOn()` and `keyToggledOff()` functions that operate on the `event.state` bitfield, allowing plugins to differentiate between the two different event states.  With this new version of the `KillX` plugin, it won't keep an `X` key live, but it will stop one from _becoming_ live.
+
+Our two plugins still yield results that depend on registration order in `KALEIDOSCOPE_INIT_PLUGINS()`, but the bug where the `X` key becomes "stuck on" is gone.
+
+It is very common for plugins to only act on key toggle-on events, or to respond differently to toggle-on and toggle-off events.
+
+## Timers
+
+Another thing that many plugins need to do is handle timeouts.  For example, the OneShot plugin keeps certain keys live for a period of time after those keys are released.  Kaleidoscope provides some infrastructure to help us keep track of time, starting with the `afterEachCycle()` "event" handler function.
+
+The `onKeyEvent()` handlers only get called in response to keyswitches toggling on and off (or as a result of plugins calling `Runtime.handleKeyEvent()`).  If the user isn't actively typing for a period, its `onKeyEvent()` handler won't get called at all, so it's not very useful to check timers in that function.  Instead, if we need to know if a timer has expired, we need to do it in a function that gets called regularly, regardless of input.  The `afterEachCycle()` handler gets called once per cycle, guaranteed.
+
+This is what an `afterEachCycle()` handler looks like:
+
+```c++
+EventHandlerResult afterEachCycle() {
+  return EventHandlerResult::OK;
+}
+```
+
+It returns an `EventHandlerResult`, like other event handlers, but this one's return value is ignored by Kaleidoscope; returning `ABORT` or `EVENT_CONSUMED` has no effect on other plugins.
+
+In addition to this, we need a way to keep track of time.  For this, Kaleidoscope provides the function `Runtime.millisAtCycleStart()`, which returns an unsigned integer representing the number of milliseconds that have elapsed since the keyboard started.  It's a 32-bit integer, so it won't overflow until about one month has elapsed, but we usually want to use as few bytes of RAM as possible on our MCU, so most timers store only as many bytes as needed, usually a `uint16_t`, which overflows after about one minute, or even a `uint8_t`, which is good for up to a quarter of a second.
+
+We need to use an integer type that's at least as big as the longest timeout we expect to be used, but integer overflow can still give us the wrong answer if we check it by naïvely comparing the current time to the time at expiration, so Kaleidoscope provides a timeout-checking service that's handles the integer overflow properly: `Runtime.hasTimeExpired(start_time, timeout)`.  To use it, your plugin should store a timestamp when the timer begins, using `Runtime.millisAtCycleStart()` (usually set in response to an event in `onKeyEvent()`).  Then, in its `afterEachCycle()` call `hasTimeExpired()`:
+
+```c++
+namespace kaleidoscope {
+namespace plugin {
+
+class MyPlugin : public Plugin {
+ public:
+  constexpr uint16_t timeout = 500;
+
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_X && keyToggledOn(event.state)) {
+      start_time_ = Runtime.millisAtCycleStart();
+      timer_running_ = true;
+    }
+    return EventHandlerResult::OK;
+  }
+
+  EventHandlerResult afterEachCycle() {
+    if (Runtime.hasTimeExpired(start_time_, timeout)) {
+      timer_running_ = false;
+      // do something...
+    }
+    return EventHandlerResult::OK;
+  }
+
+ private:
+  bool timer_running_ = false;
+  uint16_t start_time_;
+};
+
+} // namespace kaleidoscope
+} // namespace plugin
+
+kaleidoscope::plugin::MyPlugin;
+```
+
+In the above example, the private member variable `start_time_` and the constant `timeout` are the same type of unsigned integer (`uint16_t`), and we've used the additional boolean `timer_running_` to keep from checking for timeouts when `start_time_` isn't valid.  This plugin does something (unspecified) 500 milliseconds after a `Key_X` toggles on.
+
+## Creating additional events
+
+Another thing we might want a plugin to do is generate "extra" events that don't correspond to physical state changes.  An example of this is the Macros plugin, which might turn a single keypress into a series of HID reports sent to the host.  Let's build a simple plugin to illustrate how this is done, by making a key type a string of characters, rather than a single one.
+
+For the sake of simplicity, let's make the key `H` result in the string `Hi!` being typed (from the point of view of the host computer).  To do this, we'll make a plugin with an `onKeyEvent()` handler (because we want it to respond to a particular keypress event), which will call `Runtime.handleKeyEvent()` to generate new events sent to the host.
+
+The first thing we need to understand to do this is how to use the `KeyEvent()` constructor to create a new `KeyEvent` object.  For example:
+
+```c++
+KeyEvent event = KeyEvent(KeyAddr::none(), IS_PRESSED, Key_H);
+```
+
+This creates a `KeyEvent` where `event.addr` is an invalid address that doesn't correspond to a physical keyswitch, `event.state` has only the `IS_PRESSED` bit set, but not `WAS_PRESSED`, which corresponds to a key toggle-on event, and `event.key` is set to `Key_H`.
+
+We can then cause Kaleidoscope to process this event, including calling plugin handlers, by calling `Runtime.handleKeyEvent(event)`:
+
+```c++
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_H && keyToggledOn(event.state)) {
+
+      // Create and send the `H` (shift + h)
+      KeyEvent new_event = KeyEvent(KeyAddr::none(), IS_PRESSED, LSHIFT(Key_H));
+      Runtime.handleKeyEvent(new_event);
+
+      // Change the key value and send `i`
+      new_event.key = Key_I;
+      Runtime.handleKeyEvent(new_event);
+
+      // Change the key value and send `!` (shift + 1)
+      new_event.key = LSHIFT(Key_1);
+      Runtime.handleKeyEvent(new_event);
+
+      return EventHandlerResult::ABORT;
+    }
+    return EventHandlerResult::OK;
+  }
+```
+
+A few shortcuts were taken with this plugin that are worth pointing out.  First, you may have noticed that we didn't send any key _release_ events, just three presses.  This works, but there's a small chance that it could cause problems for some plugin that's trying to match key presses and releases.  To be nice (or pedantic, if you will), we could also send the matching release events, but this is probably not necessary in this case, because we've used an invalid key address (`KeyAddr::none()`) for these generated events.  This means that Kaleidoscope will not be recording these events as held keys.  If we had used valid key addresses (corresponding to physical keyswitches) instead, it would be more important to send matching release events to keep keys from getting "stuck" on.  For example, we could just use the address of the `H` key that was pressed:
+
+```c++
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_H && keyToggledOn(event.state)) {
+
+      KeyEvent new_event = KeyEvent(event.addr, IS_PRESSED, LSHIFT(Key_H));
+      Runtime.handleKeyEvent(new_event);
+
+      new_event.key = Key_I;
+      Runtime.handleKeyEvent(new_event);
+
+      new_event.key = LSHIFT(Key_1);
+      Runtime.handleKeyEvent(new_event);
+
+      return EventHandlerResult::ABORT;
+    }
+    return EventHandlerResult::OK;
+  }
+```
+
+This new version has the curious property that if the `H` key is held long enough, it will result in repeating `!!!!` characters on the host, until the key is released, which will clear it.  In fact, instead of creating a whole new `KeyEvent` object, we could further simplify this plugin by simply modifying the `event` object that we already have, instead:
+
+```c++
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_H && keyToggledOn(event.state)) {
+      event.key = LSHIFT(Key_H);
+      Runtime.handleKeyEvent(event);
+
+      event.key = Key_I;
+      Runtime.handleKeyEvent(event);
+
+      event.key = LSHIFT(Key_1);
+    }
+    return EventHandlerResult::OK;
+  }
+```
+
+Note that, with this version, we've only sent two extra events, then changed the `event.key` value, and returned `OK` instead of `ABORT`.  This is basically the same as the above pluging that turned `Y` into `X`, but with two extra events sent first.
+
+As one extra precaution, it would be wise to mark the generated event(s) as "injected" to let other plugins know that these events should be ignored.  This is a convention that is used by many existing Kaleidoscope plugins.  We do this by setting the `INJECTED` bit in the `event.state` variable:
+
+```c++
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_H && keyToggledOn(event.state)) {
+      event.state |= INJECTED;
+
+      event.key = LSHIFT(Key_H);
+      Runtime.handleKeyEvent(event);
+
+      event.key = Key_I;
+      Runtime.handleKeyEvent(event);
+
+      event.key = LSHIFT(Key_1);
+    }
+    return EventHandlerResult::OK;
+  }
+```
+
+If we wanted to be especially careful, we could also add the corresponding release events:
+
+```c++
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (event.key == Key_H && keyToggledOn(event.state)) {
+      event.key = LSHIFT(Key_H);
+      event.state = INJECTED | IS_PRESSED;
+      Runtime.handleKeyEvent(event);
+      event.state = INJECTED | WAS_PRESSED;
+      Runtime.handleKeyEvent(event);
+
+      event.key = Key_I;
+      event.state = INJECTED | IS_PRESSED;
+      Runtime.handleKeyEvent(event);
+      event.state = INJECTED | WAS_PRESSED;
+      Runtime.handleKeyEvent(event);
+
+      event.key = LSHIFT(Key_1);
+      event.state = INJECTED | IS_PRESSED;
+    }
+    return EventHandlerResult::OK;
+  }
+```
+
+### Avoiding infinite loops
+
+One very important consideration for any plugin that calls `Runtime.handleKeyEvent()` from an `onKeyEvent()` handler is recursion.  `Runtime.handleKeyEvent()` will call all plugins' `onKeyEvent()` handlers, including the one that generated the event.  Therefore, we need to take some measures to short-circuit the resulting recursive call so that our plugin doesn't cause an infinite loop.
+
+Suppose the example plugin above was changed to type the string `hi!` instead of `Hi!`.  When sending the first generated event, with `event.key` set to `Key_H`, our plugin would recognize that event as one that should be acted on, and make another call to `Runtime.handleKeyEvent()`, which would again call `MyPlugin.onKeyEvent()`, and so on until the MCU ran out of memory on the stack.
+
+The simplest mechanism used by many plugins that mark their generated events "injected" is to simply ignore all generated events:
+
+```c++
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if ((event.state & INJECTED) != 0)
+      return EventHandlerResult::OK;
+
+    if (event.key == Key_H && keyToggledOn(event.state)) {
+      event.state |= INJECTED;
+
+      event.key = LSHIFT(Key_H);
+      Runtime.handleKeyEvent(event);
+
+      event.key = Key_I;
+      Runtime.handleKeyEvent(event);
+
+      event.key = LSHIFT(Key_1);
+    }
+    return EventHandlerResult::OK;
+  }
+```
+
+There are other techniques to avoid inifinite loops, employed by plugins whose injected events should be processed by other plugins, but since most of those will be using the `onKeyswitchEvent()` handler instead of `onKeyEvent()`, we'll cover that later in this guide.
+
+## Physical keyswitch events
+
+Most plugins that respond to key events can do their work using the `onKeyEvent()` handler, but in some cases, it's necessary to use the `onKeyswitchEvent()` handler instead.  These event handlers are strictly intended for physical keyswitch events, and plugins that implement the `onKeyswitchEvent()` handler must abide by certain rules in order to work well with each other.  As a result, such a plugin is a bit more complex, but there are helper mechanisms to make things easier:
+
+```c++
+#include "kaleidoscope/KeyEventTracker.h"
+
+namespace kaleidoscope {
+namespace plugin {
+
+class MyKeyswitchPlugin : public Plugin {
+ public:
+  EventHandlerResult onKeyswitchEvent(KeyEvent &event) {
+    if (event_tracker_.shouldIgnore(event))
+      return EventHandlerResult::OK;
+    // Plugin logic goes here...
+    return EventHandlerResult::OK;
+  }
+ private:
+  KeyEventTracker event_tracker_;
+};
+
+} // namespace kaleidoscope
+} // namespace plugin
+
+kaleidoscope::plugin::MyKeyswitchPlugin;
+```
+
+We've just added a `KeyEventTracker` object to our plugin, and made the first line of its `onKeyswitchEvent()` handler call that event tracker's `shouldIgnore()` method, returning `OK` if it returns `true` (thereby ignoring the event).  Every plugin that implements `onKeyswitchEvent()` should follow this template to avoid plugin interaction bugs, including possible infinite loops.
+
+The main reason for this event tracker mechanism is that plugins with `onKeyswitchEvent()` handlers often delay events because some aspect of those events (usually `event.key`) needs to be determined by subsequent events or timeouts.  To do this, event information is stored, and the event is later regenerated by the plugin, which calls `Runtime.handleKeyswitchEvent()` so that the other `onKeyswitchEvent()` handlers can process it.
+
+We need to prevent infinite loops, but simply marking the regenerated event `INJECTED` is no good, because it would prevent the other plugins from acting on it, so we instead keep track of a monotonically increasing event id number and use the `KeyEventTracker` helper class to ignore events that our plugin has already recieved, so that when the plugin regenerates an event with the same event id, it (and all the plugins before it) can ignore that event, but the subsequent plugins, which haven't seen that event yet, will recongize it as new and process the event accordingly.
+
+### Regenerating stored events
+
+When a plugin that implements `onKeyswitchEvent()` regenerates a stored event later so that it can be processed by the next plugin in the chain, it must use the correct event id value (the same one used by the original event).  This is an object of type `EventId`, and is retrieved by calling `event.id()` (unlike the other properties of a `KeyEvent` object the event id is not directly accessible).
+
+```c++
+KeyEventId stored_id = event.id();
+```
+
+When reconstructing an event to allow it to proceed, we then use the four-argument version of the `KeyEvent` constructor:
+
+```c++
+KeyEvent event = KeyEvent(addr, state, key, stored_id);
+```
+
+In the above, `addr` and `state` are usually also the same as the original event's values, and `key` is most often the thing that changes.  If your plugin wants a keymap lookup to take place, the value `Key_Undefined` can be used instead of explicitly doing the lookup itself.
+
+## Controlling LEDs
+
+## HID reports
+
+## Layer changes

docs/index.rst

@@ -9,9 +9,9 @@ Kaleidoscope
 
 Flexible firmware for computer keyboards.
 
-This package contains the "core" of Kaleidoscope and a number of [example firmware "Sketches"](https://github.com/keyboardio/Kaleidoscope/tree/master/examples).
+This package contains the "core" of Kaleidoscope and a number of `example firmware "Sketches" <https://github.com/keyboardio/Kaleidoscope/tree/master/examples>`_
 
-If you're just getting started with the Keyboardio Model 01, the [introductory docs are here](https://github.com/keyboardio/Kaleidoscope/wiki/Keyboardio-Model-01-Introduction) and the source for the basic firmware package is here: https://github.com/keyboardio/Model01-Firmware. It's probably a good idea to start there, learn how to modify your keymap and maybe turn some modules on or off, and then come back to the full repository when you have more complex changes in mind.
+If you're just getting started with the Keyboardio Model 01, the `introductory docs are here <https://github.com/keyboardio/Kaleidoscope/wiki/Keyboardio-Model-01-Introduction>`_ and the source for the basic firmware package is here: https://github.com/keyboardio/Model01-Firmware. It's probably a good idea to start there, learn how to modify your keymap and maybe turn some modules on or off, and then come back to the full repository when you have more complex changes in mind.
 
 .. toctree::
    :caption: Installation and setup
@@ -68,10 +68,10 @@ For developers
    drivers/**
 
 .. toctree::
-   :caption: Development tips
+   :caption: Testing
    :glob:
 
-   development/**
+   testing/**
 
 
 .. toctree::
@@ -90,8 +90,8 @@ For developers
 
 
 .. toctree::
-   :caption: Docs that don't work yet 
    :maxdepth: 2
+   :caption: Examples
 
    examples
    about

docs/plugins/TriColor.md

@@ -1,35 +0,0 @@
-# TriColor
-
-The `TriColor` effect extension is a part of
-the [`LEDEffects`][plugin:ledeffects] library, not a stand-alone base library of
-its own. It is used to implement the effects in that library.
-
- [plugin:ledeffects]: LEDEffects.md
-
-It is a class that can be used to create LED effects that all follow a similar
-pattern: alphas and similar in one color; modifiers, special keys, and half the
-function keys in another, and `Esc` in a third (this latter being optional). If
-we have a color scheme that follows this pattern, the `TriColor` extension can
-make it a lot easier to implement it.
-
-## Using the extension
-
-Because the extension is part of the [`LEDEffects`][plugin:ledeffects] library,
-we need to include that header:
-
-```c++
-#include <Kaleidoscope-LEDEffects.h>
-```
-
-Then, we simply create a new instance of the `TriColor` class, with appropriate
-colors set for the constructor:
-
-```c++
-kaleidoscope::plugin::TriColor BlackAndWhiteEffect (CRGB(0x00, 0x00, 0x00),
-                                                    CRGB(0xff, 0xff, 0xff),
-                                                    CRGB(0x80, 0x80, 0x80));
-```
-
-The first argument is the base color, the second is for modifiers and special
-keys, the last one is for the `Esc` key. If the last one is omitted, the
-extension will use the modifier color for it.

docs/setup_toolchain.md

@@ -47,7 +47,7 @@ Next step: [Add keyboard support to Arduino](#add-keyboard-support-to-arduino)
    Snap:        https://snapcraft.io/arduino
    Arch:        sudo pacman -S arduino
    ``` 
-   Unfortunately, the version packaged in Ubuntu is too ancient to support Arduino's new way of doing 3rd-party hardware.
+   Unfortunately, the version of the Arduino IDE packaged in Ubuntu is unmaintained and too old to use, and the version packaged in Debian has been heavily modified and might not be able to compile your keyboard's firmware.
 
 2. Assuming you're using the tar archive, and untarring in the download directory:
 
@@ -67,13 +67,13 @@ Next step: [Add keyboard support to Arduino](#add-keyboard-support-to-arduino)
     $ sudo /etc/init.d/udev reload
     ```
     
-    For Arch based distributions the following command will be used instead of `sudo /etc/init.d/udev reload`
+    For Arch based distributions use the following command instead of `sudo /etc/init.d/udev reload`
     ```sh
     $ sudo udevadm control --reload-rules && udevadm trigger
     ```
     
 
-4. Then disconnect and reconnect the keyboard for that change to take effect.
+4. Next, disconnect and reconnect your keyboard so that your computer will apply the changes.
 
 ## <a name="Arduino-Windows"></a>Install Arduino on Windows 10
 
@@ -148,10 +148,18 @@ Next step: [Add keyboard support to Arduino](#add-keyboard-support-to-arduino)
 
 ![](images/arduino-setup/open-preferences.png)
 
-3. Paste the following url into the box labeled 'Additional Board Manager URLs':
+3. To use released versions of Kaleidoscope, paste the following url into the box labeled 'Additional Board Manager URLs':
    ```
    https://raw.githubusercontent.com/keyboardio/boardsmanager/master/package_keyboardio_index.json
    ```
+
+   If you would prefer to be able to install an 'up to the minute' build of the `master` branch of Kaleidoscope from git, use this URL:
+   ```
+   https://raw.githubusercontent.com/keyboardio/arduino-kaleidoscope-master/main/package_kaleidoscope_master_index.json
+   ```
+
+   As a warning: the `master` builds may be less stable than release builds.
+
 ![](images/arduino-setup/add-boards-manager-link.png)
 
 4. Click ‘OK’ to close the dialog

etc/60-kaleidoscope.rules

@@ -14,3 +14,5 @@ SUBSYSTEMS=="usb", ATTRS{idVendor}=="1209", ATTRS{idProduct}=="2300", SYMLINK+="
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="1209", ATTRS{idProduct}=="2301", SYMLINK+="model01", ENV{ID_MM_DEVICE_IGNORE}:="1", ENV{ID_MM_CANDIDATE}:="0", TAG+="uaccess", TAG+="seat"
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="1209", ATTRS{idProduct}=="2302", SYMLINK+="Atreus2", ENV{ID_MM_DEVICE_IGNORE}:="1", ENV{ID_MM_CANDIDATE}:="0", TAG+="uaccess", TAG+="seat"
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="1209", ATTRS{idProduct}=="2303", SYMLINK+="Atreus2", ENV{ID_MM_DEVICE_IGNORE}:="1", ENV{ID_MM_CANDIDATE}:="0", TAG+="uaccess", TAG+="seat"
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="3496", ATTRS{idProduct}=="0005", SYMLINK+="model100", ENV{ID_MM_DEVICE_IGNORE}:="1", ENV{ID_MM_CANDIDATE}:="0", TAG+="uaccess", TAG+="seat"
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="3496", ATTRS{idProduct}=="0006", SYMLINK+="model100", ENV{ID_MM_DEVICE_IGNORE}:="1", ENV{ID_MM_CANDIDATE}:="0", TAG+="uaccess", TAG+="seat"

etc/Dockerfile

@@ -3,16 +3,22 @@ LABEL maintainer="Keyboard.io, inc"
 
 RUN apt-get -qq update && \
     DEBIAN_FRONTEND=noninteractive \
-    apt-get -qq install -y xz-utils curl make build-essential libxtst-dev cmake ccache vim
+    apt-get -qq install -y xz-utils curl make build-essential libxtst-dev cmake ccache vim git
 
 RUN ccache --set-config=cache_dir=/kaleidoscope-persist/ccache/cache
 
 
 RUN curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | \
   sh
-RUN ARDUINO_DIRECTORIES_DATA=/arduino-cli/data /bin/arduino-cli config init
+
+RUN ARDUINO_DIRECTORIES_DATA=/arduino-cli/data \
+    ARDUINO_BOARD_MANAGER_ADDITIONAL_URLS=https://raw.githubusercontent.com/keyboardio/boardsmanager/master/devel/package_kaleidoscope_devel_index.json \
+    /bin/arduino-cli config init
 RUN ARDUINO_DIRECTORIES_DATA=/arduino-cli/data /bin/arduino-cli update
+RUN ARDUINO_DIRECTORIES_DATA=/arduino-cli/data /bin/arduino-cli core update-index
 RUN ARDUINO_DIRECTORIES_DATA=/arduino-cli/data /bin/arduino-cli core install arduino:avr
+RUN ARDUINO_DIRECTORIES_DATA=/arduino-cli/data /bin/arduino-cli core install "keyboardio:avr-tools-only"
+RUN ARDUINO_DIRECTORIES_DATA=/arduino-cli/data /bin/arduino-cli core install "keyboardio:gd32-tools-only"
 
 
 COPY docker-entrypoint.sh /usr/local/bin/entrypoint

etc/docker-entrypoint.sh

@@ -6,16 +6,15 @@ install -d /kaleidoscope/ \
            /kaleidoscope-persist/temp  \
            /kaleidoscope-persist/ccache/cache
 
+if [ -z $_NO_SYNC_KALEIDOSCOPE ]; then
 
 echo "Syncing Kaleidoscope..."
 tar xf /kaleidoscope-src/kaleidoscope.tar -C /kaleidoscope/
 
-echo "Syncing the bundle..."
-tar xf /kaleidoscope-src/bundle.tar -C /kaleidoscope/.arduino/user/hardware/keyboardio
-
-rm -f /kaleidoscope/.arduino/user/hardware/keyboardio/avr/libraries/Kaleidoscope
 ln -s  /kaleidoscope /kaleidoscope/.arduino/user/hardware/keyboardio/avr/libraries/Kaleidoscope
+ln -s  /kaleidoscope /kaleidoscope/.arduino/user/hardware/keyboardio/gd32/libraries/Kaleidoscope
 
+fi
 
 cd /kaleidoscope/
 export ARDUINO_DIRECTORIES_DATA=/arduino-cli/data

etc/kaleidoscope-builder.conf

@@ -1,274 +0,0 @@
-# -*- shell-script -*-
-
-## NEEDS: SKETCH
-## Should be included when the current directory is the dir of the Sketch.
-
-SKETCH="${SKETCH:-${DEFAULT_SKETCH}}"
-
-########
-######## Keyboard hardware definitions
-########
-
-: "${BOARD:=model01}"
-: "${MCU:=atmega32u4}"
-
-if [ -z "${ARCH}" ]; then
-   ARCH=$(echo "${FQBN}" | sed -n -e 's/^[^:]\+:\([^:]\+\).*/\1/p')
-fi
-
-if [ "${ARCH}" = "virtual" ]; then
-    : "${FQBN:=keyboardio:virtual:${BOARD}}"
-
-    # Set the compiler path for virtual builds
-    #
-    if [ -z "${COMPILER_PATH}" ]; then
-       COMPILER_PATH="/usr/bin/"
-    fi
-
-    COMPILER_PREFIX=""
-else
-   ARCH="avr"
-fi
-
-if [ -z "${FQBN}" ]; then
-   : "${FQBN:=keyboardio:avr:${BOARD}}"
-fi
-
-########
-######## Host OS specific commands
-########
-
-## Platform-specific overrides
-# Shamelessly stolen from git's Makefile
-uname_S=$(uname -s 2>/dev/null || echo not)
-uname_O=$(uname -o 2>/dev/null || echo not)
-
-
-find_device_vid_pid() {
-    : ${VID:=$(get_arduino_pref 'build.vid')}
-    : ${SKETCH_PID:=$(get_arduino_pref 'build.pid')}
-    : ${BOOTLOADER_PID:=$(get_arduino_pref 'bootloader.pid')}
-    : ${BOOTLOADER_VID:=$(get_arduino_pref 'bootloader.vid')}
-}
-
-
-get_arduino_pref() {
-	pref=$1
-	# Strip the preference name. And then strip leading and trailing quotations
-	MESSAGE=$(dump_arduino_prefs | grep --max-count=1 ${pref}= | sed -e s/^.*${pref}=// -e 's/^"//' -e 's/"$//')
-	echo $MESSAGE
-}
-
-
-dump_arduino_prefs() {
-# SKETCH and -build-path in this command are here because of a bug introduced in Arduino 1.8.10
-# https://github.com/arduino/arduino-builder/issues/341
-
-    if [ "x${_ARDUINO_PREFS}x" == "xx" ]; then
-
-	    _ARDUINO_PREFS=$("${ARDUINO_BUILDER}" \
-		-hardware "${ARDUINO_PATH}/hardware" \
-		-hardware "${BOARD_HARDWARE_PATH}" \
-		${ARDUINO_TOOLS_FLAG:+"${ARDUINO_TOOLS_FLAG}"} ${ARDUINO_TOOLS_PARAM:+"${ARDUINO_TOOLS_PARAM}"} \
-		-tools "${ARDUINO_BUILDER_TOOLS_PATH}" \
-		-fqbn "${FQBN}" \
-	 	-build-path "${ARDUINO_PATH}" \
-   		-dump-prefs  "${SKETCH_DIR}/${SKETCH}.ino" )
-    fi
-    echo "$_ARDUINO_PREFS"
-
-}
-
-find_device_port() {
-    find_device_vid_pid
-    DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-linux-udev"
-    if [[ "${DEVICE_PORT}" = "" ]]; then
-      DEVICE_PORT="$(perl ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID})"
-    else
-      echo "DEVICE_PORT=\"${DEVICE_PORT}\" predefined."
-    fi
-}
-
-reset_device_cmd() {
-    if [ -z ${NO_RESET} ]; then
-        stty -F ${DEVICE_PORT} 1200 hupcl
-    fi
-}
-
-find_bootloader_ports() {
-    find_device_vid_pid
-    : "${BOOTLOADER_VID:=${VID}}"
-    DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-linux-udev"
-    if [[ "${DEVICE_PORT_BOOTLOADER}" = "" ]]; then
-      DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER} ${BOOTLOADER_VID} ${BOOTLOADER_PID})"
-    else
-      echo "DEVICE_PORT_BOOTLOADER=\"${DEVICE_PORT_BOOTLOADER}\" predefined."
-    fi
-}
-
-
-MD5="md5sum"
-
-if [ "${uname_S}" = "Darwin" ]; then
-
-    find_device_port() {
-	DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-macos"
-        DEVICE_PORT="$(perl ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID})"
-    }
-
-    reset_device_cmd() {
-	/bin/stty -f ${DEVICE_PORT} 1200
-    }
-
-    : "${ARDUINO_PATH:=/Applications/Arduino.app/Contents/Java/}"
-    : "${ARDUINO_PACKAGE_PATH:=${HOME}/Library/Arduino15/packages}"
-    : "${ARDUINO_LOCAL_LIB_PATH:=${HOME}/Documents/Arduino}"
-
-    MD5="md5"
-
-    find_bootloader_ports() {
-        find_device_vid_pid
-        : "${BOOTLOADER_VID:=${VID}}"
-	DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-macos"
-        if [[ "${DEVICE_PORT_BOOTLOADER}" = "" ]]; then
-          DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER} ${BOOTLOADER_VID} ${BOOTLOADER_PID})"
-        else
-          echo "DEVICE_PORT_BOOTLOADER=\"${DEVICE_PORT_BOOTLOADER}\" predefined."
-        fi
-    }
-
-elif [ "${uname_S}" = "FreeBSD" ]; then
-
-    find_device_port() {
-	DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-freebsd"
-	DEVICE_PORT="$(perl ${DEVICE_PORT_PROBER})"
-    }
-
-    reset_device_cmd() {
-	/bin/stty -f ${DEVICE_PORT} 1200
-    }
-
-    MD5="md5"
-    : "${AVR_SIZE:=/usr/local/bin/avr-size}"
-    : "${AVR_NM:=/usr/local/bin/avr-nm}"
-    : "${AVR_OBJDUMP:=/usr/local/bin/avr-objdump}"
-    : "${AVRDUDE:=/usr/local/bin/avrdude}"
-    : "${AVRDUDE_CONF:=/usr/local/etc/avrdude.conf}"
-    : "${ARDUINO_BUILDER:=/usr/local/bin/arduino-builder}"
-
-    find_bootloader_ports() {
-	DEVICE_PORT_PROBER="${KALEIDOSCPE_BIN_DIR}/find-device-port-freebsd"
-	DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER})"
-    }
-
-    if [ "${ARCH}" = "virtual" ]; then
-        : "${COMPILER_PATH:=/usr/local/bin/}"
-    fi
-
-elif [ "${uname_O}" = "Cygwin" ]; then
-    # The Windows arduino-builder.exe doesn't understand being told to exec against Cygwin symlinks
-    CCACHE_NOT_SUPPORTED=1
-
-    # Note: the default ARDUINO_PATH here is the default Arduino installation path on Windows, but it won't actually
-    # work in practice right now since we haven't fixed all bugs related to interpretation of spaces in these paths.
-    #
-    # It's important that all of these be underneath /cygdrive/c so they can be converted to Windows paths that the
-    # Windows Arduino binaries can understand.
-    : "${ARDUINO_PATH:=/cygdrive/c/Program\ Files\ (x86)/Arduino}"
-    : "${ARDUINO_PACKAGE_PATH:=/cygdrive/c/Users/${USER}/AppData/Local/Arduino15/packages}"
-    : "${ARDUINO_LOCAL_LIB_PATH:=/cygdrive/c/Users/${USER}/Arduino}"
-    TMPDIR="${ARDUINO_LOCAL_LIB_PATH:-/cygdrive/c/Users/${USER}/AppData/Local/Temp}"
-
-    # We need to prevent Windows executables from being passed parameters that are absolute paths, since they won't
-    # be interpretable when of the form /cygdrive/c/foo. To work around this, we set the common path root variables
-    # to use relative paths instead of absolute paths, since those have mostly platform-agnostic behavior.
-    #
-    # Note that this trick requires that all of these paths exist on the same drive letter as the current directory,
-    # since otherwise even the relative paths would include Cygwin-specific components. So...
-    if [[ $(realpath --relative-base=/cygdrive/c .) == /* ]]; then
-        echo "kaleidoscope-builder's Cygwin support is currently limited to running from within /cygdrive/c"
-        exit 1
-    fi
-
-    ARDUINO_PATH="$(realpath --relative-to=./ ${ARDUINO_PATH})"
-    ARDUINO_PACKAGE_PATH="$(realpath --relative-to=./ ${ARDUINO_PACKAGE_PATH})"
-    ARDUINO_LOCAL_LIB_PATH="$(realpath --relative-to=./ ${ARDUINO_LOCAL_LIB_PATH})"
-    TMPDIR="$(realpath --relative-to=./ ${ARDUINO_PATH})"
-
-    find_device_port() {
-        find_device_vid_pid
-        DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-windows.ps1"
-        DEVICE_PORT="$(powershell -noprofile -executionpolicy bypass ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID} -Format Cygwin)"
-        DEVICE_COM_PORT="$(powershell -noprofile -executionpolicy bypass ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID} -Format COM)"
-    }
-
-    reset_device_cmd() {
-        cmd /c mode ${DEVICE_COM_PORT} baud=1200
-    }
-
-    find_bootloader_ports() {
-        find_device_vid_pid
-        : "${BOOTLOADER_VID:=${VID}}"
-        DEVICE_PORT_PROBER="${KALEIDOSCOPE_BIN_DIR}/find-device-port-windows.ps1"
-        DEVICE_PORT_BOOTLOADER="$(powershell -noprofile -executionpolicy bypass ${DEVICE_PORT_PROBER} ${BOOTLOADER_VID} ${BOOTLOADER_PID} -Format COM)"
-    }
-
-fi
-
-######
-###### Arduino tools configuration
-######
-
-: "${ARDUINO_PATH:=/usr/local/arduino}"
-: "${ARDUINO_LOCAL_LIB_PATH:=${HOME}/Arduino}"
-: "${ARDUINO_TOOLS_PATH:=${ARDUINO_PATH}/hardware/tools}"
-: "${ARDUINO_PACKAGE_PATH:=${HOME}/.arduino15/packages}"
-: "${ARDUINO_BUILDER:=${ARDUINO_PATH}/arduino-builder}"
-: "${ARDUINO_BUILDER_TOOLS_PATH:=${ARDUINO_PATH}/tools-builder}"
-
-ARDUINO_IDE_VERSION="10607"
-
-######
-###### Executable paths
-######
-
-# Allow the compiler path to be empty for virtual builds
-: "${COMPILER_PATH=${ARDUINO_TOOLS_PATH}/avr/bin/}"
-
-COMPILER_SUFFIX=""
-
-C_COMPILER_BASENAME=$(basename ${CC:-gcc})
-CXX_COMPILER_BASENAME=$(basename ${CXX:-g++})
-AR_BASENAME=$(basename ${AR:-ar})
-OBJCOPY_BASENAME=$(basename ${OBJCOPY:-objcopy})
-
-# Allow the compiler prefix to be empty for virtual builds
-COMPILER_PREFIX="${COMPILER_PREFIX-avr-}"
-: "${AVR_SIZE:=${COMPILER_PATH}/${COMPILER_PREFIX}size}"
-: "${AVR_SIZE_FLAGS:=-C --mcu=${MCU}}"
-: "${AVR_OBJDUMP:=${COMPILER_PATH}/${COMPILER_PREFIX}objdump}"
-: "${AVR_OBJCOPY:=${COMPILER_PATH}/${COMPILER_PREFIX}objcopy}"
-: "${AVR_NM:=${COMPILER_PATH}/${COMPILER_PREFIX}nm}"
-: "${AVR_AR:=${COMPILER_PATH}/${COMPILER_PREFIX}ar}"
-: "${AVR_GCC:=${COMPILER_PATH}/${COMPILER_PREFIX}${C_COMPILER_BASENAME}}"
-AVR_GPLUSPLUS="${AVR_GCC:-${COMPILER_PATH}/${COMPILER_PREFIX}${CXX_COMPILER_BASENAME}}"
-
-
-
-: "${AVRDUDE:=${ARDUINO_TOOLS_PATH}/avr/bin/avrdude}"
-: "${AVRDUDE_CONF:=${ARDUINO_TOOLS_PATH}/avr/etc/avrdude.conf}"
-
-######
-###### Source files and dependencies
-######
-
-: "${BOARD_HARDWARE_PATH:=${ARDUINO_LOCAL_LIB_PATH}/hardware}"
-
-if [ ! -z "${ARDUINO_TOOLS_PATH}" ]; then
-    ARDUINO_TOOLS_PARAM="${ARDUINO_TOOLS_PATH}"
-    ARDUINO_TOOLS_FLAG="-tools"
-fi
-
-if [ ! -z "${AVR_GCC_PREFIX}" ]; then
-    ARDUINO_AVR_GCC_PREFIX_PARAM="-prefs \"runtime.tools.avr-gcc.path=${AVR_GCC_PREFIX}\""
-fi

etc/makefiles/arduino-cli.mk

@@ -35,7 +35,8 @@ ARDUINO_CONTENT ?= $(KALEIDOSCOPE_DIR)/.arduino
 export ARDUINO_DIRECTORIES_DATA ?= $(ARDUINO_CONTENT)/data
 export ARDUINO_DIRECTORIES_DOWNLOADS ?= $(ARDUINO_CONTENT)/downloads
 export ARDUINO_CLI_CONFIG ?= $(ARDUINO_DIRECTORIES_DATA)/arduino-cli.yaml
-export ARDUINO_BOARD_MANAGER_ADDITIONAL_URLS ?= https://raw.githubusercontent.com/keyboardio/boardsmanager/master/package_keyboardio_index.json
+export ARDUINO_BOARD_MANAGER_ADDITIONAL_URLS ?= https://raw.githubusercontent.com/keyboardio/boardsmanager/master/devel/package_kaleidoscope_devel_index.json
+
 
 # If it looks like Kaleidoscope is inside a "traditional" Arduino hardware directory 
 # in the user's homedir, let's use that.
@@ -54,33 +55,14 @@ endif
 # Otherwise, use the arduino-cli bundle
 export ARDUINO_DIRECTORIES_USER ?= $(ARDUINO_CONTENT)/user
 
-# If we're not calling setup, we should freak out if the hardware
-# definitions don't exist
-
-ifneq ($(MAKECMDGOALS),setup)
-
-ifeq ($(wildcard $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/boards.txt),)
 
-$(info Kaleidoscope hardware definitions not found in)
-$(info $(ARDUINO_DIRECTORIES_USER))
-$(info )
-$(info You may be able to resolve this issue by running the following command)
-$(info to initialize Kaleidoscope )
-$(info )
-$(info $(MAKE) -C $(KALEIDOSCOPE_DIR) setup )
-$(info )
-$(error )
-
-endif
-
-endif
 
 arduino_env = ARDUINO_DIRECTORIES_USER=$(ARDUINO_DIRECTORIES_USER) \
 	      ARDUINO_DIRECTORIES_DATA=$(ARDUINO_DIRECTORIES_DATA)
 
 ifeq ($(ARDUINO_CLI_PATH),) 
 
-system_arduino_cli ?= $(shell command -v arduino-cli || true)
+system_arduino_cli := $(shell command -v arduino-cli || true)
 
 ifeq ($(system_arduino_cli),) 
 export ARDUINO_CLI_PATH ?= $(KALEIDOSCOPE_BIN_DIR)/arduino-cli
@@ -126,15 +108,16 @@ _arduino_prop = $(subst $1=,,$(subst 🔥, ,$(filter $1=%,$(_arduino_props))))
 # $(call _arduino_prop,recipe.hooks.sketch.prebuild.2.pattern)
 
 ifneq ($(KALEIDOSCOPE_CCACHE),) 
-ccache_wrapper_property := --build-properties "compiler.wrapper.cmd=ccache"
+ccache_wrapper_property := --build-property compiler.wrapper.cmd=ccache
 endif
 
 .PHONY: configure-arduino-cli install-arduino-core-kaleidoscope install-arduino-core-avr
 .PHONY: stupid-workaround-for-make-inclusion-semantics
 
-stupid-workaround-for-make-inclusion-semantics: DEFAULT_GOAL
+stupid-workaround-for-make-inclusion-semantics:
 	@: # This is here so that the sketch makefile including this file doesn't
 	@: # default to arduino-cli installation as its priamry target
+	@echo "No default target specified; aborting. Please set the .DEFAULT_GOAL variable in your makefile."
 
 $(KALEIDOSCOPE_BIN_DIR)/arduino-cli:
 	$(QUIET) curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | BINDIR="$(KALEIDOSCOPE_BIN_DIR)" sh
@@ -146,9 +129,38 @@ configure-arduino-cli: $(ARDUINO_DIRECTORIES_DATA)/arduino-cli.yaml
 $(ARDUINO_DIRECTORIES_DATA)/arduino-cli.yaml:
 	$(QUIET) $(ARDUINO_CLI) config init
 
-install-arduino-core-kaleidoscope:
+arduino-update-cores:
-	$(QUIET) $(ARDUINO_CLI) core install "keyboardio:avr"
+	$(QUIET) $(ARDUINO_CLI) core update-index
+
 
-install-arduino-core-avr: 
+
+install-arduino-core-kaleidoscope: arduino-update-cores
+	$(QUIET) $(ARDUINO_CLI) core install "keyboardio:avr-tools-only"
+	$(QUIET) $(ARDUINO_CLI) core install "keyboardio:gd32-tools-only"
+
+install-arduino-core-avr: arduino-update-cores
 	$(QUIET) $(ARDUINO_CLI) core install "arduino:avr"
 
+
+install-arduino-core-deps:
+	$(QUIET) $(ARDUINO_CLI) core install "keyboardio:avr-tools-only"
+	$(QUIET) $(ARDUINO_CLI) core install "keyboardio:gd32-tools-only"
+
+
+# If we're not calling setup, we should freak out if the hardware
+# definitions don't exist
+
+.PHONY: kaleidoscope-hardware-configured
+
+kaleidoscope-hardware-configured: $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/platform.txt
+
+$(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/platform.txt:
+	$(info Kaleidoscope hardware definitions not found in)
+	$(info $(ARDUINO_DIRECTORIES_USER))
+	$(info )
+	$(info You may be able to resolve this issue by running the following command)
+	$(info to initialize Kaleidoscope )
+	$(info )
+	$(info $(MAKE) -C $(KALEIDOSCOPE_DIR) setup )
+	$(info )
+	$(error )

etc/makefiles/sketch.mk

@@ -45,16 +45,11 @@ OUTPUT_FILE_PREFIX 		:= $(SKETCH_BASE_NAME)-$(GIT_VERSION)
 HEX_FILE_PATH 			:= $(OUTPUT_PATH)/$(OUTPUT_FILE_PREFIX).hex
 HEX_FILE_WITH_BOOTLOADER_PATH 	:= $(OUTPUT_PATH)/$(OUTPUT_FILE_PREFIX)-with-bootloader.hex
 ELF_FILE_PATH 			:= $(OUTPUT_PATH)/$(OUTPUT_FILE_PREFIX).elf
+BIN_FILE_PATH				:= $(OUTPUT_PATH)/$(OUTPUT_FILE_PREFIX).bin
 LIB_FILE_PATH 			:= $(OUTPUT_PATH)/$(OUTPUT_FILE_PREFIX).a
 
-
-KALEIDOSCOPE_PLATFORM_LIB_DIR := $(abspath $(KALEIDOSCOPE_DIR)/..)
-
-
-
-
 ifeq ($(FQBN),)
-possible_fqbns = $(shell $(ARDUINO_CLI) board list --format=json |grep FQBN| grep -v "keyboardio:virtual"|cut -d: -f 2-)
+possible_fqbns := $(shell $(ARDUINO_CLI) board list --format=json |grep FQBN| grep -v "keyboardio:virtual"|cut -d: -f 2-)
 
 possible_fqbn = $(firstword $(possible_fqbns))
 
@@ -105,21 +100,7 @@ endif
 
 
 
-# Flashing related config
+.DEFAULT_GOAL := compile
-ifneq ($(FQBN),)
-ifeq ($(KALEIDOSCOPE_DEVICE_PORT),)
-KALEIDOSCOPE_DEVICE_PORT = $(shell $(ARDUINO_CLI) board list --format=text | grep $(FQBN) |cut -d' ' -f 1)
-endif
-endif
-
-flashing_instructions	:= $(call _arduino_prop,build.flashing_instructions)
-ifeq ($(flashing_instructions),)
-flashing_instructions	:= "If your keyboard needs you to do something to put it in flashing mode, do that now."
-endif
-
-unescaped_flashing_instructions = $(shell printf $(flashing_instructions) )
-
-DEFAULT_GOAL: compile
 
 
 #$(SKETCH_FILE_PATH):
@@ -143,7 +124,6 @@ size-map: ${ELF_FILE_PATH}
 		$(call _arduino_prop,compiler.size-map.flags) \
 		"${ELF_FILE_PATH}"
 
-flash: ${HEX_FILE_PATH}
 
 ${ELF_FILE_PATH}: compile
 ${HEX_FILE_PATH}: compile
@@ -168,15 +148,26 @@ clean:
 
 
 ifneq ($(LOCAL_CFLAGS),)
-local_cflags_property = --build-properties "compiler.cpp.extra_flags=${LOCAL_CFLAGS}"
+local_cflags_property = --build-property "compiler.cpp.extra_flags=${LOCAL_CFLAGS}"
 else
 local_cflags_property =
 endif
 
-compile:
+# If you set KALEIDOSCOPE_LOCAL_LIB_DIR to the name of a directory, 
-	$(QUIET) install -d "${OUTPUT_PATH}"
+# all of the Arduino libraries inside that directory should be used 
-	$(QUIET) $(ARDUINO_CLI) compile --fqbn "${FQBN}" ${ARDUINO_VERBOSE} --warnings all ${ccache_wrapper_property} ${local_cflags_property} \
+# in preference to any library with the same name further dow the search path
-	  --libraries "${KALEIDOSCOPE_PLATFORM_LIB_DIR}" \
+
+ifneq ($(KALEIDOSCOPE_LOCAL_LIB_DIR),)
+_arduino_local_libraries_prop =  --libraries "${KALEIDOSCOPE_LOCAL_LIB_DIR}"
+endif
+
+compile: kaleidoscope-hardware-configured
+
+
+	-$(QUIET) install -d "${OUTPUT_PATH}"
+	$(QUIET) $(ARDUINO_CLI) compile --fqbn "${FQBN}" ${ARDUINO_VERBOSE} ${ccache_wrapper_property} ${local_cflags_property} \
+	  ${_arduino_local_libraries_prop} ${_ARDUINO_CLI_COMPILE_CUSTOM_FLAGS} \
+	  --library "${KALEIDOSCOPE_DIR}" \
 	  --libraries "${KALEIDOSCOPE_DIR}/plugins/" \
 	  --build-path "${BUILD_PATH}" \
 	  --output-dir "${OUTPUT_PATH}" \
@@ -185,8 +176,10 @@ compile:
 ifeq ($(LIBONLY),)
 	$(QUIET) cp "${BUILD_PATH}/${SKETCH_FILE_NAME}.hex" "${HEX_FILE_PATH}"
 	$(QUIET) cp "${BUILD_PATH}/${SKETCH_FILE_NAME}.elf" "${ELF_FILE_PATH}"
+	$(QUIET) if [ -e "${BUILD_PATH}/${SKETCH_FILE_NAME}.bin" ]; then cp "${BUILD_PATH}/${SKETCH_FILE_NAME}.bin" "${BIN_FILE_PATH}"; else :; fi
 	$(QUIET) ln -sf "${OUTPUT_FILE_PREFIX}.hex" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest.hex"
 	$(QUIET) ln -sf "${OUTPUT_FILE_PREFIX}.elf" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest.elf"
+	$(QUIET) if [ -e "${OUTPUT_PATH}/${OUTPUT_FILE_PREFIX}.bin" ]; then ln -sf "${OUTPUT_FILE_PREFIX}.bin" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest.bin"; else :; fi
 else    
 	$(QUIET) cp "${BUILD_PATH}/${SKETCH_FILE_NAME}.a" "${LIB_FILE_PATH}"
 	$(QUIET) ln -sf "${OUTPUT_FILE_PREFIX}.a" "${OUTPUT_PATH}/${SKETCH_BASE_NAME}-latest.a"
@@ -198,23 +191,25 @@ endif
 #TODO (arduino team) I'd love to do this with their json output
 #but it's short some of the data we kind of need
 
-.PHONY: ensure-device-port-defined
 
-ensure-device-port-defined:  
+flashing_instructions = $(call _arduino_prop,build.flashing_instructions)
-	@if [ -z $(KALEIDOSCOPE_DEVICE_PORT) ]; then \
-	echo "ERROR: Unable to detect keyboard serial port.";\
-	echo ;\
-	echo "Arduino should autodetect it, but you could also set";\
-	echo "KALEIDOSCOPE_DEVICE_PORT to your keyboard's serial port.";\
-	echo ;\
-	exit -1;fi
 
-flash: ensure-device-port-defined
+flash: ${HEX_FILE_PATH}
-	$(info $(unescaped_flashing_instructions))
+ifneq ($(flashing_instructions),)
+	$(info $(shell printf $(flashing_instructions)))
+else
+	$(info If your keyboard needs you to do something to put it in flashing mode, do that now.)
+endif
 	$(info )
 	$(info When you're ready to proceed, press 'Enter'.)
 	$(info )
-	@$(shell read)
+	@$(shell read _)
+	# If we have a device serial port available, try to trigger a Kaliedoscope reset
+	-$(QUIET) export DEVICE=$(shell $(ARDUINO_CLI) board list --format=text | grep $(FQBN) |cut -d' ' -f 1) && \
+		[ -e "$$DEVICE" ] && \
+		$(KALEIDOSCOPE_DIR)/bin/focus-send "device.reset" && \
+		sleep 2
 	$(QUIET) $(ARDUINO_CLI) upload --fqbn $(FQBN) \
+	$(shell $(ARDUINO_CLI) board list --format=text | grep $(FQBN) |cut -d' ' -f 1 | xargs -n 1 echo "--port" ) \
 	--input-dir "${OUTPUT_PATH}" \
-	  --port $(KALEIDOSCOPE_DEVICE_PORT) $(ARDUINO_VERBOSE)
+	$(ARDUINO_VERBOSE)

examples/Basic/Basic.ino

@@ -17,7 +17,7 @@
 
 #include "Kaleidoscope.h"
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -38,7 +38,7 @@ KEYMAPS(
    Key_NoKey
   ),
 )
-/* *INDENT-ON* */
+// clang-format on
 
 void setup() {
   Kaleidoscope.setup();

examples/Devices/EZ/ErgoDox/ErgoDox.ino

@@ -19,7 +19,7 @@
 
 #include "Kaleidoscope.h"
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -46,7 +46,7 @@ KEYMAPS(
       Key_PageDown, Key_Tab, Key_Enter
   ),
 )
-/* *INDENT-ON* */
+// clang-format on
 
 void setup() {
   Kaleidoscope.setup();

examples/Devices/KBDFans/KBD4x/KBD4x.ino

@@ -31,7 +31,7 @@ enum {
 
 #define MO(n) ShiftToLayer(n)
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
 
 /* Qwerty
@@ -71,13 +71,14 @@ KEYMAPS(
   ,___          ,___   ,___   ,___   ,___       ,___      ,___   ,___   ,___   ,___   ,___
 )
 );
-/* *INDENT-ON* */
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(Macros);
 
-const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
-  switch (macroIndex) {
+  switch (macro_id) {
   case RESET:
+    if (keyToggledOn(event.state))
       Kaleidoscope.rebootBootloader();
     break;
   default:

examples/Devices/Keyboardio/Atreus/.kaleidoscope-builder.conf

@@ -1,2 +0,0 @@
-DEFAULT_SKETCH="Atreus"
-BOARD="keyboardio_atreus"

examples/Devices/Keyboardio/Atreus/Atreus.ino

@@ -1,6 +1,6 @@
 /* -*- mode: c++ -*-
  * Atreus -- Chrysalis-enabled Sketch for the Keyboardio Atreus
- * Copyright (C) 2018, 2019  Keyboard.io, Inc
+ * Copyright (C) 2018-2022  Keyboard.io, Inc
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,20 +18,22 @@
  */
 
 #ifndef BUILD_INFORMATION
-#define BUILD_INFORMATION "locally built"
+#define BUILD_INFORMATION "locally built on " __DATE__ " at " __TIME__
 #endif
 
 #include "Kaleidoscope.h"
 #include "Kaleidoscope-EEPROM-Settings.h"
 #include "Kaleidoscope-EEPROM-Keymap.h"
+#include "Kaleidoscope-Escape-OneShot.h"
+#include "Kaleidoscope-FirmwareVersion.h"
 #include "Kaleidoscope-FocusSerial.h"
 #include "Kaleidoscope-Macros.h"
 #include "Kaleidoscope-MouseKeys.h"
 #include "Kaleidoscope-OneShot.h"
 #include "Kaleidoscope-Qukeys.h"
 #include "Kaleidoscope-SpaceCadet.h"
-
+#include "Kaleidoscope-DynamicMacros.h"
-
+#include "Kaleidoscope-LayerNames.h"
 
 #define MO(n) ShiftToLayer(n)
 #define TG(n) LockLayer(n)
@@ -57,7 +59,7 @@ enum {
   UPPER
 };
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
   [QWERTY] = KEYMAP_STACKED
   (
@@ -98,9 +100,10 @@ KEYMAPS(
       ,___      ,___           ,MoveToLayer(QWERTY) ,Key_PrintScreen ,Key_ScrollLock ,Consumer_PlaySlashPause
    )
 )
-/* *INDENT-ON* */
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(
+  EscapeOneShot,
   EEPROMSettings,
   EEPROMKeymap,
   Focus,
@@ -110,11 +113,15 @@ KALEIDOSCOPE_INIT_PLUGINS(
   SpaceCadet,
   OneShot,
   Macros,
-  MouseKeys
+  DynamicMacros,
-);
+  MouseKeys,
-
+  EscapeOneShotConfig,
-const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
+  FirmwareVersion,
-  switch (macroIndex) {
+  LayerNames);
+
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
+  if (keyToggledOn(event.state)) {
+    switch (macro_id) {
     case MACRO_QWERTY:
       // This macro is currently unused, but is kept around for compatibility
       // reasons. We used to use it in place of `MoveToLayer(QWERTY)`, but no
@@ -123,22 +130,26 @@ const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
       Layer.move(QWERTY);
       break;
     case MACRO_VERSION_INFO:
-    if (keyToggledOn(keyState)) {
       Macros.type(PSTR("Keyboardio Atreus - Kaleidoscope "));
       Macros.type(PSTR(BUILD_INFORMATION));
-    }
       break;
     default:
       break;
     }
-
+  }
   return MACRO_NONE;
 }
 
 void setup() {
   Kaleidoscope.setup();
   SpaceCadet.disable();
-  EEPROMKeymap.setup(10);
+  EEPROMKeymap.setup(9);
+
+  DynamicMacros.reserve_storage(48);
+
+  LayerNames.reserve_storage(63);
+
+  Layer.move(EEPROMSettings.default_layer());
 }
 
 void loop() {

examples/Devices/Keyboardio/Imago/Imago.ino

@@ -50,11 +50,12 @@
 #include "Kaleidoscope-USB-Quirks.h"
 
 
-enum {  _QWERTY,
+enum {
-     };
+  _QWERTY,
+};
 
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
 
 [_QWERTY] = KEYMAP(
@@ -67,8 +68,7 @@ Key_F5,	Key_LeftControl,Key_LeftAlt,	Key_LeftGui, 	Key_Backspace,     Key_LeftAr
 
 
 ));
-/* *INDENT-ON* */
+// clang-format on
-
 
 
 // These 'solid' color effect definitions define a rainbow of
@@ -133,13 +133,14 @@ static void toggleKeyboardProtocol(uint8_t combo_index) {
 /** Magic combo list, a list of key combo and action pairs the firmware should
  * recognise.
  */
-USE_MAGIC_COMBOS({.action = toggleKeyboardProtocol,
+USE_MAGIC_COMBOS(
+  {.action = toggleKeyboardProtocol,
    // Left Fn + Esc + Shift
-                  .keys = { R3C6, R2C6, R3C7 }
+   .keys = {R3C6, R2C6, R3C7}});
-                 });
 
 
-KALEIDOSCOPE_INIT_PLUGINS(Macros,
+KALEIDOSCOPE_INIT_PLUGINS(
+  Macros,
 
   // LEDControl provides support for other LED modes
   LEDControl,
@@ -158,7 +159,13 @@ KALEIDOSCOPE_INIT_PLUGINS(Macros,
   LEDChaseEffect,
 
   // These static effects turn your keyboard's LEDs a variety of colors
-                          solidRed, solidOrange, solidYellow, solidGreen, solidBlue, solidIndigo, solidViolet,
+  solidRed,
+  solidOrange,
+  solidYellow,
+  solidGreen,
+  solidBlue,
+  solidIndigo,
+  solidViolet,
 
   // The breathe effect slowly pulses all of the LEDs on your keyboard
   LEDBreatheEffect,
@@ -176,8 +183,7 @@ KALEIDOSCOPE_INIT_PLUGINS(Macros,
   // comfortable - or able - to do automatically, but can be useful
   // nevertheless. Such as toggling the key report protocol between Boot (used
   // by BIOSes) and Report (NKRO).
-                          USBQuirks
+  USBQuirks);
-                         );
 
 void setup() {
   Kaleidoscope.setup();

examples/Devices/Keyboardio/Model01/Makefile

@@ -1,6 +1,8 @@
 # This makefile for a Kaleidoscope sketch pulls in all the targets
 # required to build the example
 
+# Compile without deprecated code to save space
+LOCAL_CFLAGS ?= -DNDEPRECATED -DONESHOT_WITHOUT_METASTICKY
 
 
 

examples/Devices/Keyboardio/Model01/Model01.ino

@@ -1,102 +1,522 @@
-/* -*- mode: c++ -*-
+// -*- mode: c++ -*-
- * Kaleidoscope - A Kaleidoscope example
+// Copyright 2016 Keyboardio, inc. <jesse@keyboard.io>
- * Copyright (C) 2016-2019  Keyboard.io, Inc.
+// See "LICENSE" for license details
- *
+
- * This program is free software: you can redistribute it and/or modify it under
+#ifndef BUILD_INFORMATION
- * the terms of the GNU General Public License as published by the Free Software
+#define BUILD_INFORMATION "locally built on " __DATE__ " at " __TIME__
- * Foundation, version 3.
+#endif
- *
+
- * This program is distributed in the hope that it will be useful, but WITHOUT
+
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+/**
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * These #include directives pull in the Kaleidoscope firmware core,
- * details.
+ * as well as the Kaleidoscope plugins we use in the Model 01's firmware
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#define DEBUG_SERIAL false
 
+// The Kaleidoscope core
 #include "Kaleidoscope.h"
+
+// Support for storing the keymap in EEPROM
+#include "Kaleidoscope-EEPROM-Settings.h"
+#include "Kaleidoscope-EEPROM-Keymap.h"
+
+// Support for communicating with the host via a simple Serial protocol
+#include "Kaleidoscope-FocusSerial.h"
+
+// Support for querying the firmware version via Focus
+#include "Kaleidoscope-FirmwareVersion.h"
+
+// Support for keys that move the mouse
 #include "Kaleidoscope-MouseKeys.h"
+
+// Support for macros & dynamic macros
 #include "Kaleidoscope-Macros.h"
+#include "Kaleidoscope-DynamicMacros.h"
+
+// Support for controlling the keyboard's LEDs
 #include "Kaleidoscope-LEDControl.h"
+
+// Support for "Numpad" mode, which is mostly just the Numpad specific LED mode
 #include "Kaleidoscope-NumPad.h"
-#include "Kaleidoscope-HardwareTestMode.h"
-#include "Kaleidoscope-MagicCombo.h"
 
+// Support for the "Boot greeting" effect, which pulses the 'LED' button for 10s
+// when the keyboard is connected to a computer (or that computer is powered on)
+#include "Kaleidoscope-LEDEffect-BootGreeting.h"
+
+// Support for LED modes that set all LEDs to a single color
 #include "Kaleidoscope-LEDEffect-SolidColor.h"
+
+// Support for an LED mode that makes all the LEDs 'breathe'
 #include "Kaleidoscope-LEDEffect-Breathe.h"
+
+// Support for an LED mode that makes a red pixel chase a blue pixel across the keyboard
 #include "Kaleidoscope-LEDEffect-Chase.h"
+
+// Support for LED modes that pulse the keyboard's LED in a rainbow pattern
 #include "Kaleidoscope-LEDEffect-Rainbow.h"
 
-#define NUMPAD_KEYMAP 2
+// Support for shared palettes for other plugins, like Colormap below
-
+#include "Kaleidoscope-LED-Palette-Theme.h"
-
+
-#define GENERIC_FN2  KEYMAP_STACKED ( \
+// Support for an LED mode that lets one configure per-layer color maps
-         ___,      Key_F1,        Key_F2,      Key_F3,     Key_F4,          Key_F5,          XXX,            \
+#include "Kaleidoscope-Colormap.h"
-        Key_Tab,  Key_mouseBtnM, Key_mouseUp, ___,        Key_mouseWarpNW, Key_mouseWarpNE, Consumer_ScanNextTrack, \
+
-        Key_Home, Key_mouseL,    Key_mouseDn, Key_mouseR, Key_mouseWarpSW, Key_mouseWarpSE, \
+// Support for Keyboardio's internal keyboard testing mode
-        Key_End,  Key_Z,         Key_X,       Key_C,      Key_V,           Key_mouseWarpEnd, ___,    \
+#include "Kaleidoscope-HardwareTestMode.h"
-                                                        Key_LeftControl, Key_mouseBtnL, Key_LeftGui, Key_LeftShift,                \
+
-                                                                                    ___, \
+// Support for host power management (suspend & wakeup)
-\
+#include "Kaleidoscope-HostPowerManagement.h"
-        XXX,        Key_F6,         Key_F7,            Key_F8,                   Key_F9,              ___,                   ___, \
+
-        Key_Delete, Consumer_PlaySlashPause,  Key_LeftCurlyBracket, Key_RightCurlyBracket, Key_LeftBracket, Key_RightBracket, System_Sleep, \
+// Support for magic combos (key chords that trigger an action)
-                    Key_LeftArrow,            Key_DownArrow,        Key_UpArrow,           Key_RightArrow,  Key_F11,                   Key_F12, \
+#include "Kaleidoscope-MagicCombo.h"
-        ___,        Consumer_VolumeDecrement, Consumer_VolumeIncrement,   Key_BacklightDown,   Key_BacklightUp,    Key_Backslash,      Key_Pipe, \
+
-        Key_RightShift, Key_RightAlt, Key_mouseBtnR, Key_RightControl, \
+// Support for secondary actions (one action when tapped, another when held)
-        ___\
+#include "Kaleidoscope-Qukeys.h"
-)
+
-
+// Support for USB quirks, like changing the key state report protocol
-
+#include "Kaleidoscope-USB-Quirks.h"
-
+
-
+/** This 'enum' is a list of all the macros used by the Model 01's firmware
-#define NUMPAD KEYMAP  (\
+  * The names aren't particularly important. What is important is that each
-         ___, ___, ___, ___, ___, ___, ___,                           ___, ___, Key_Keypad7, Key_Keypad8,   Key_Keypad9,        Key_KeypadSubtract, ___, \
+  * is unique.
-        ___, ___, ___, ___, ___, ___, ___,                            ___, ___, Key_Keypad4, Key_Keypad5,   Key_Keypad6,        Key_KeypadAdd,  ___, \
+  *
-        ___, ___, ___, ___, ___, ___,                                      ___, Key_Keypad1, Key_Keypad2,   Key_Keypad3,        Key_Equals,      Key_Quote, \
+  * These are the names of your macros. They'll be used in two places.
-        ___, ___, ___, ___, ___, ___, ___,                            ___, ___, Key_Keypad0, Key_KeypadDot, Key_KeypadMultiply, Key_KeypadDivide, Key_Enter, \
+  * The first is in your keymap definitions. There, you'll use the syntax
-       Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl, \
+  * `M(MACRO_NAME)` to mark a specific keymap position as triggering `MACRO_NAME`
-                                 Key_Keymap1_Momentary,               Key_Keymap1_Momentary \
+  *
-)
+  * The second usage is in the 'switch' statement in the `macroAction` function.
-
+  * That switch statement actually runs the code associated with a macro when
-#define QWERTY KEYMAP ( \
+  * a macro key is pressed.
-        ___,          Key_1, Key_2, Key_3, Key_4, Key_5, Key_LEDEffectNext,         ___,        Key_6, Key_7, Key_8,     Key_9,      Key_0,         Key_KeypadNumLock, \
+  */
-        Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab,                   Key_Enter,  Key_Y, Key_U, Key_I,     Key_O,      Key_P,         Key_Equals, \
+
-        Key_PageUp,   Key_A, Key_S, Key_D, Key_F, Key_G,                                        Key_H, Key_J, Key_K,     Key_L,      Key_Semicolon, Key_Quote, \
+enum { MACRO_VERSION_INFO,
-        Key_PageDown, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape,                 ___,       Key_N, Key_M, Key_Comma, Key_Period, Key_Slash,     Key_Minus, \
+       MACRO_ANY
-                 Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,        Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl, \
+};
-                                              Key_KeymapNext_Momentary,         Key_KeymapNext_Momentary \
+
-)
+
+/** The Model 01's key layouts are defined as 'keymaps'. By default, there are three
+  * keymaps: The standard QWERTY keymap, the "Function layer" keymap and the "Numpad"
+  * keymap.
+  *
+  * Each keymap is defined as a list using the 'KEYMAP_STACKED' macro, built
+  * of first the left hand's layout, followed by the right hand's layout.
+  *
+  * Keymaps typically consist mostly of `Key_` definitions. There are many, many keys
+  * defined as part of the USB HID Keyboard specification. You can find the names
+  * (if not yet the explanations) for all the standard `Key_` defintions offered by
+  * Kaleidoscope in these files:
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs_keyboard.h
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs_consumerctl.h
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs_sysctl.h
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs_keymaps.h
+  *
+  * Additional things that should be documented here include
+  *   using ___ to let keypresses fall through to the previously active layer
+  *   using XXX to mark a keyswitch as 'blocked' on this layer
+  *   using ShiftToLayer() and LockLayer() keys to change the active keymap.
+  *   keeping NUM and FN consistent and accessible on all layers
+  *
+  * The PROG key is special, since it is how you indicate to the board that you
+  * want to flash the firmware. However, it can be remapped to a regular key.
+  * When the keyboard boots, it first looks to see whether the PROG key is held
+  * down; if it is, it simply awaits further flashing instructions. If it is
+  * not, it continues loading the rest of the firmware and the keyboard
+  * functions normally, with whatever binding you have set to PROG. More detail
+  * here: https://community.keyboard.io/t/how-the-prog-key-gets-you-into-the-bootloader/506/8
+  *
+  * The "keymaps" data structure is a list of the keymaps compiled into the firmware.
+  * The order of keymaps in the list is important, as the ShiftToLayer(#) and LockLayer(#)
+  * macros switch to key layers based on this list.
+  *
+  *
+
+  * A key defined as 'ShiftToLayer(FUNCTION)' will switch to FUNCTION while held.
+  * Similarly, a key defined as 'LockLayer(NUMPAD)' will switch to NUMPAD when tapped.
+  */
+
+/**
+  * Layers are "0-indexed" -- That is the first one is layer 0. The second one is layer 1.
+  * The third one is layer 2.
+  * This 'enum' lets us use names like QWERTY, FUNCTION, and NUMPAD in place of
+  * the numbers 0, 1 and 2.
+  *
+  */
+
+enum { PRIMARY,
+       NUMPAD,
+       FUNCTION };  // layers
+
+
+/**
+  * To change your keyboard's layout from QWERTY to DVORAK or COLEMAK, comment out the line
+  *
+  * #define PRIMARY_KEYMAP_QWERTY
+  *
+  * by changing it to
+  *
+  * // #define PRIMARY_KEYMAP_QWERTY
+  *
+  * Then uncomment the line corresponding to the layout you want to use.
+  *
+  */
+
+#define PRIMARY_KEYMAP_QWERTY
+// #define PRIMARY_KEYMAP_DVORAK
+// #define PRIMARY_KEYMAP_COLEMAK
+// #define PRIMARY_KEYMAP_CUSTOM
+
+
+/* This comment temporarily turns off astyle's indent enforcement
+ *   so we can make the keymaps actually resemble the physical key layout better
+ */
+// *INDENT-OFF*
 
 KEYMAPS(
-  QWERTY,
+
-  GENERIC_FN2,
+#if defined(PRIMARY_KEYMAP_QWERTY)
-  NUMPAD
+  [PRIMARY] = KEYMAP_STACKED(___, Key_1, Key_2, Key_3, Key_4, Key_5, Key_LEDEffectNext, Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab, Key_PageUp, Key_A, Key_S, Key_D, Key_F, Key_G, Key_PageDown, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape, Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift, ShiftToLayer(FUNCTION),
-)
+
-
+                             M(MACRO_ANY),
-
+                             Key_6,
-static kaleidoscope::plugin::LEDSolidColor solidRed(60, 0, 0);
+                             Key_7,
-static kaleidoscope::plugin::LEDSolidColor solidOrange(60, 20, 0);
+                             Key_8,
-static kaleidoscope::plugin::LEDSolidColor solidYellow(40, 35, 0);
+                             Key_9,
-static kaleidoscope::plugin::LEDSolidColor solidGreen(0, 100, 0);
+                             Key_0,
-static kaleidoscope::plugin::LEDSolidColor solidBlue(0, 15, 100);
+                             LockLayer(NUMPAD),
-static kaleidoscope::plugin::LEDSolidColor solidIndigo(0, 0, 100);
+                             Key_Enter,
-static kaleidoscope::plugin::LEDSolidColor solidViolet(70, 0, 60);
+                             Key_Y,
-
+                             Key_U,
-const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
+                             Key_I,
-  if (macroIndex == 1 && keyToggledOn(keyState)) {
+                             Key_O,
-    Kaleidoscope.serialPort().print("Keyboard.IO keyboard driver v0.00");
+                             Key_P,
-    return MACRO(I(25),
+                             Key_Equals,
-                 D(LeftShift), T(M), U(LeftShift), T(O), T(D), T(E), T(L),
+                             Key_H,
-                 T(Spacebar),
+                             Key_J,
-                 W(100),
+                             Key_K,
-                 T(0), T(1));
+                             Key_L,
+                             Key_Semicolon,
+                             Key_Quote,
+                             Key_RightAlt,
+                             Key_N,
+                             Key_M,
+                             Key_Comma,
+                             Key_Period,
+                             Key_Slash,
+                             Key_Minus,
+                             Key_RightShift,
+                             Key_LeftAlt,
+                             Key_Spacebar,
+                             Key_RightControl,
+                             ShiftToLayer(FUNCTION)),
+
+#elif defined(PRIMARY_KEYMAP_DVORAK)
+
+  [PRIMARY] = KEYMAP_STACKED(___, Key_1, Key_2, Key_3, Key_4, Key_5, Key_LEDEffectNext, Key_Backtick, Key_Quote, Key_Comma, Key_Period, Key_P, Key_Y, Key_Tab, Key_PageUp, Key_A, Key_O, Key_E, Key_U, Key_I, Key_PageDown, Key_Semicolon, Key_Q, Key_J, Key_K, Key_X, Key_Escape, Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift, ShiftToLayer(FUNCTION),
+
+                             M(MACRO_ANY),
+                             Key_6,
+                             Key_7,
+                             Key_8,
+                             Key_9,
+                             Key_0,
+                             LockLayer(NUMPAD),
+                             Key_Enter,
+                             Key_F,
+                             Key_G,
+                             Key_C,
+                             Key_R,
+                             Key_L,
+                             Key_Slash,
+                             Key_D,
+                             Key_H,
+                             Key_T,
+                             Key_N,
+                             Key_S,
+                             Key_Minus,
+                             Key_RightAlt,
+                             Key_B,
+                             Key_M,
+                             Key_W,
+                             Key_V,
+                             Key_Z,
+                             Key_Equals,
+                             Key_RightShift,
+                             Key_LeftAlt,
+                             Key_Spacebar,
+                             Key_RightControl,
+                             ShiftToLayer(FUNCTION)),
+
+#elif defined(PRIMARY_KEYMAP_COLEMAK)
+
+  [PRIMARY] = KEYMAP_STACKED(___, Key_1, Key_2, Key_3, Key_4, Key_5, Key_LEDEffectNext, Key_Backtick, Key_Q, Key_W, Key_F, Key_P, Key_G, Key_Tab, Key_PageUp, Key_A, Key_R, Key_S, Key_T, Key_D, Key_PageDown, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape, Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift, ShiftToLayer(FUNCTION),
+
+                             M(MACRO_ANY),
+                             Key_6,
+                             Key_7,
+                             Key_8,
+                             Key_9,
+                             Key_0,
+                             LockLayer(NUMPAD),
+                             Key_Enter,
+                             Key_J,
+                             Key_L,
+                             Key_U,
+                             Key_Y,
+                             Key_Semicolon,
+                             Key_Equals,
+                             Key_H,
+                             Key_N,
+                             Key_E,
+                             Key_I,
+                             Key_O,
+                             Key_Quote,
+                             Key_RightAlt,
+                             Key_K,
+                             Key_M,
+                             Key_Comma,
+                             Key_Period,
+                             Key_Slash,
+                             Key_Minus,
+                             Key_RightShift,
+                             Key_LeftAlt,
+                             Key_Spacebar,
+                             Key_RightControl,
+                             ShiftToLayer(FUNCTION)),
+
+#elif defined(PRIMARY_KEYMAP_CUSTOM)
+  // Edit this keymap to make a custom layout
+  [PRIMARY] = KEYMAP_STACKED(___, Key_1, Key_2, Key_3, Key_4, Key_5, Key_LEDEffectNext, Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab, Key_PageUp, Key_A, Key_S, Key_D, Key_F, Key_G, Key_PageDown, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape, Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift, ShiftToLayer(FUNCTION),
+
+                             M(MACRO_ANY),
+                             Key_6,
+                             Key_7,
+                             Key_8,
+                             Key_9,
+                             Key_0,
+                             LockLayer(NUMPAD),
+                             Key_Enter,
+                             Key_Y,
+                             Key_U,
+                             Key_I,
+                             Key_O,
+                             Key_P,
+                             Key_Equals,
+                             Key_H,
+                             Key_J,
+                             Key_K,
+                             Key_L,
+                             Key_Semicolon,
+                             Key_Quote,
+                             Key_RightAlt,
+                             Key_N,
+                             Key_M,
+                             Key_Comma,
+                             Key_Period,
+                             Key_Slash,
+                             Key_Minus,
+                             Key_RightShift,
+                             Key_LeftAlt,
+                             Key_Spacebar,
+                             Key_RightControl,
+                             ShiftToLayer(FUNCTION)),
+
+#else
+
+#error "No default keymap defined. You should make sure that you have a line like '#define PRIMARY_KEYMAP_QWERTY' in your sketch"
+
+#endif
+
+
+  [NUMPAD] = KEYMAP_STACKED(___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
+
+                            M(MACRO_VERSION_INFO),
+                            ___,
+                            Key_7,
+                            Key_8,
+                            Key_9,
+                            Key_KeypadSubtract,
+                            ___,
+                            ___,
+                            ___,
+                            Key_4,
+                            Key_5,
+                            Key_6,
+                            Key_KeypadAdd,
+                            ___,
+                            ___,
+                            Key_1,
+                            Key_2,
+                            Key_3,
+                            Key_Equals,
+                            ___,
+                            ___,
+                            ___,
+                            Key_0,
+                            Key_Period,
+                            Key_KeypadMultiply,
+                            Key_KeypadDivide,
+                            Key_Enter,
+                            ___,
+                            ___,
+                            ___,
+                            ___,
+                            ___),
+
+  [FUNCTION] = KEYMAP_STACKED(___, Key_F1, Key_F2, Key_F3, Key_F4, Key_F5, Key_CapsLock, Key_Tab, ___, Key_mouseUp, ___, Key_mouseBtnR, Key_mouseWarpEnd, Key_mouseWarpNE, Key_Home, Key_mouseL, Key_mouseDn, Key_mouseR, Key_mouseBtnL, Key_mouseWarpNW, Key_End, Key_PrintScreen, Key_Insert, ___, Key_mouseBtnM, Key_mouseWarpSW, Key_mouseWarpSE, ___, Key_Delete, ___, ___, ___,
+
+                              Consumer_ScanPreviousTrack,
+                              Key_F6,
+                              Key_F7,
+                              Key_F8,
+                              Key_F9,
+                              Key_F10,
+                              Key_F11,
+                              Consumer_PlaySlashPause,
+                              Consumer_ScanNextTrack,
+                              Key_LeftCurlyBracket,
+                              Key_RightCurlyBracket,
+                              Key_LeftBracket,
+                              Key_RightBracket,
+                              Key_F12,
+                              Key_LeftArrow,
+                              Key_DownArrow,
+                              Key_UpArrow,
+                              Key_RightArrow,
+                              ___,
+                              ___,
+                              Key_PcApplication,
+                              Consumer_Mute,
+                              Consumer_VolumeDecrement,
+                              Consumer_VolumeIncrement,
+                              ___,
+                              Key_Backslash,
+                              Key_Pipe,
+                              ___,
+                              ___,
+                              Key_Enter,
+                              ___,
+                              ___))  // KEYMAPS(
+
+/* Re-enable astyle's indent enforcement */
+// *INDENT-ON*
+
+/** versionInfoMacro handles the 'firmware version info' macro
+ *  When a key bound to the macro is pressed, this macro
+ *  prints out the firmware build information as virtual keystrokes
+ */
+
+static void versionInfoMacro(uint8_t key_state) {
+  if (keyToggledOn(key_state)) {
+    Macros.type(PSTR("Keyboardio Model 01 - Kaleidoscope "));
+    Macros.type(PSTR(BUILD_INFORMATION));
+  }
+}
+
+/** anyKeyMacro is used to provide the functionality of the 'Any' key.
+ *
+ * When the 'any key' macro is toggled on, a random alphanumeric key is
+ * selected. While the key is held, the function generates a synthetic
+ * keypress event repeating that randomly selected key.
+ *
+ */
+
+static void anyKeyMacro(KeyEvent &event) {
+  if (keyToggledOn(event.state)) {
+    event.key.setKeyCode(Key_A.getKeyCode() + (uint8_t)(millis() % 36));
+    event.key.setFlags(0);
+  }
+}
+
+
+/** macroAction dispatches keymap events that are tied to a macro
+    to that macro. It takes two uint8_t parameters.
+
+    The first is the macro being called (the entry in the 'enum' earlier in this file).
+    The second is the state of the keyswitch. You can use the keyswitch state to figure out
+    if the key has just been toggled on, is currently pressed or if it's just been released.
+
+    The 'switch' statement should have a 'case' for each entry of the macro enum.
+    Each 'case' statement should call out to a function to handle the macro in question.
+
+ */
+
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
+  switch (macro_id) {
+
+  case MACRO_VERSION_INFO:
+    versionInfoMacro(event.state);
+    break;
+
+  case MACRO_ANY:
+    anyKeyMacro(event);
+    break;
   }
   return MACRO_NONE;
 }
 
+
+// These 'solid' color effect definitions define a rainbow of
+// LED color modes calibrated to draw 500mA or less on the
+// Keyboardio Model 01.
+
+
+static kaleidoscope::plugin::LEDSolidColor solidRed(160, 0, 0);
+static kaleidoscope::plugin::LEDSolidColor solidOrange(140, 70, 0);
+static kaleidoscope::plugin::LEDSolidColor solidYellow(130, 100, 0);
+static kaleidoscope::plugin::LEDSolidColor solidGreen(0, 160, 0);
+static kaleidoscope::plugin::LEDSolidColor solidBlue(0, 70, 130);
+static kaleidoscope::plugin::LEDSolidColor solidIndigo(0, 0, 170);
+static kaleidoscope::plugin::LEDSolidColor solidViolet(130, 0, 120);
+
+/** toggleLedsOnSuspendResume toggles the LEDs off when the host goes to sleep,
+ * and turns them back on when it wakes up.
+ */
+void toggleLedsOnSuspendResume(kaleidoscope::plugin::HostPowerManagement::Event event) {
+  switch (event) {
+  case kaleidoscope::plugin::HostPowerManagement::Suspend:
+    LEDControl.disable();
+    break;
+  case kaleidoscope::plugin::HostPowerManagement::Resume:
+    LEDControl.enable();
+    break;
+  case kaleidoscope::plugin::HostPowerManagement::Sleep:
+    break;
+  }
+}
+
+/** hostPowerManagementEventHandler dispatches power management events (suspend,
+ * resume, and sleep) to other functions that perform action based on these
+ * events.
+ */
+void hostPowerManagementEventHandler(kaleidoscope::plugin::HostPowerManagement::Event event) {
+  toggleLedsOnSuspendResume(event);
+}
+
+/** This 'enum' is a list of all the magic combos used by the Model 01's
+ * firmware The names aren't particularly important. What is important is that
+ * each is unique.
+ *
+ * These are the names of your magic combos. They will be used by the
+ * `USE_MAGIC_COMBOS` call below.
+ */
+enum {
+  // Toggle between Boot (6-key rollover; for BIOSes and early boot) and NKRO
+  // mode.
+  COMBO_TOGGLE_NKRO_MODE,
+  // Enter test mode
+  COMBO_ENTER_TEST_MODE
+};
+
+/** Wrappers, to be used by MagicCombo. **/
+
+/**
+ * This simply toggles the keyboard protocol via USBQuirks, and wraps it within
+ * a function with an unused argument, to match what MagicCombo expects.
+ */
+static void toggleKeyboardProtocol(uint8_t combo_index) {
+  USBQuirks.toggleKeyboardProtocol();
+}
+
 /**
  *  This enters the hardware test mode
  */
@@ -108,27 +528,168 @@ static void enterHardwareTestMode(uint8_t combo_index) {
 /** Magic combo list, a list of key combo and action pairs the firmware should
  * recognise.
  */
-USE_MAGIC_COMBOS({
+USE_MAGIC_COMBOS({.action = toggleKeyboardProtocol,
-  .action = enterHardwareTestMode,
+                  // Left Fn + Esc + Shift
+                  .keys = {R3C6, R2C6, R3C7}},
+                 {.action = enterHardwareTestMode,
                   // Left Fn + Prog + LED
-  .keys = { R3C6, R0C0, R0C6 }
+                  .keys = {R3C6, R0C0, R0C6}});
-});
+
+// First, tell Kaleidoscope which plugins you want to use.
+// The order can be important. For example, LED effects are
+// added in the order they're listed here.
+KALEIDOSCOPE_INIT_PLUGINS(
+  // The EEPROMSettings & EEPROMKeymap plugins make it possible to have an
+  // editable keymap in EEPROM.
+  EEPROMSettings,
+  EEPROMKeymap,
+
+  // Focus allows bi-directional communication with the host, and is the
+  // interface through which the keymap in EEPROM can be edited.
+  Focus,
+
+  // FocusSettingsCommand adds a few Focus commands, intended to aid in
+  // changing some settings of the keyboard, such as the default layer (via the
+  // `settings.defaultLayer` command)
+  FocusSettingsCommand,
+
+  // FocusEEPROMCommand adds a set of Focus commands, which are very helpful in
+  // both debugging, and in backing up one's EEPROM contents.
+  FocusEEPROMCommand,
+
+  // The boot greeting effect pulses the LED button for 10 seconds after the
+  // keyboard is first connected
+  BootGreetingEffect,
+
+  // The hardware test mode, which can be invoked by tapping Prog, LED and the
+  // left Fn button at the same time.
+  HardwareTestMode,
+
+  // LEDControl provides support for other LED modes
+  LEDControl,
+
+  // We start with the LED effect that turns off all the LEDs.
+  LEDOff,
+
+  // The rainbow effect changes the color of all of the keyboard's keys at the same time
+  // running through all the colors of the rainbow.
+  LEDRainbowEffect,
+
+  // The rainbow wave effect lights up your keyboard with all the colors of a rainbow
+  // and slowly moves the rainbow across your keyboard
+  LEDRainbowWaveEffect,
+
+  // The chase effect follows the adventure of a blue pixel which chases a red pixel across
+  // your keyboard. Spoiler: the blue pixel never catches the red pixel
+  LEDChaseEffect,
+
+  // These static effects turn your keyboard's LEDs a variety of colors
+  solidRed,
+  solidOrange,
+  solidYellow,
+  solidGreen,
+  solidBlue,
+  solidIndigo,
+  solidViolet,
+
+  // The breathe effect slowly pulses all of the LEDs on your keyboard
+  LEDBreatheEffect,
 
-KALEIDOSCOPE_INIT_PLUGINS(HardwareTestMode,
+  // The LED Palette Theme plugin provides a shared palette for other plugins,
-                          LEDControl, LEDOff,
+  // like Colormap below
-                          solidRed, solidOrange, solidYellow, solidGreen, solidBlue, solidIndigo, solidViolet,
+  LEDPaletteTheme,
-                          LEDBreatheEffect, LEDRainbowEffect, LEDChaseEffect, NumPad,
+
+  // The Colormap effect makes it possible to set up per-layer colormaps
+  ColormapEffect,
+
+  // The numpad plugin is responsible for lighting up the 'numpad' mode
+  // with a custom LED effect
+  NumPad,
+
+  // The macros plugin adds support for macros, DynamicMacros does the same for
+  // Chrysalis-editable, dynamic ones.
   Macros,
+  DynamicMacros,
+
+  // The MouseKeys plugin lets you add keys to your keymap which move the mouse.
   MouseKeys,
-                          MagicCombo);
 
+  // Qukeys lets you add secondary actions to keys, such that they do their
+  // original action on tap, but another action (usually a modifier or a layer
+  // shift action) when held.
+  Qukeys,
+
+  // The HostPowerManagement plugin allows us to turn LEDs off when then host
+  // goes to sleep, and resume them when it wakes up.
+  HostPowerManagement,
+
+  // The MagicCombo plugin lets you use key combinations to trigger custom
+  // actions - a bit like Macros, but triggered by pressing multiple keys at the
+  // same time.
+  MagicCombo,
+
+  // The USBQuirks plugin lets you do some things with USB that we aren't
+  // comfortable - or able - to do automatically, but can be useful
+  // nevertheless. Such as toggling the key report protocol between Boot (used
+  // by BIOSes) and Report (NKRO).
+  USBQuirks,
+
+  // The FirmwareVersion plugin lets Chrysalis query the version of the firmware
+  // programmatically.
+  FirmwareVersion);
+
+/** The 'setup' function is one of the two standard Arduino sketch functions.
+ * It's called when your keyboard first powers up. This is where you set up
+ * Kaleidoscope and any plugins.
+ */
 void setup() {
+  // First, call Kaleidoscope's internal setup function
   Kaleidoscope.setup();
 
-  NumPad.numPadLayer = NUMPAD_KEYMAP;
+  // While we hope to improve this in the future, the NumPad plugin
+  // needs to be explicitly told which keymap layer is your numpad layer
+  NumPad.numPadLayer = NUMPAD;
+
+  // We set the brightness of the rainbow effects to 150 (on a scale of 0-255)
+  // This draws more than 500mA, but looks much nicer than a dimmer effect
+  LEDRainbowEffect.brightness(150);
+  LEDRainbowWaveEffect.brightness(150);
+
+  // Set the action key the test mode should listen for to Left Fn
+  HardwareTestMode.setActionKey(R3C6);
+
+  // We want to make sure that the firmware starts with LED effects off
+  // This avoids over-taxing devices that don't have a lot of power to share
+  // with USB devices
   LEDOff.activate();
+
+  // To make the keymap editable without flashing new firmware, we store
+  // additional layers in EEPROM. For now, we reserve space for five layers. If
+  // one wants to use these layers, just set the default layer to one in EEPROM,
+  // by using the `settings.defaultLayer` Focus command, or by using the
+  // `keymap.onlyCustom` command to use EEPROM layers only.
+  EEPROMKeymap.setup(5);
+
+  // We need to tell the Colormap plugin how many layers we want to have custom
+  // maps for. To make things simple, we set it to five layers, which is how
+  // many editable layers we have (see above).
+  ColormapEffect.max_layers(5);
+
+  // For Dynamic Macros, we need to reserve storage space for the editable
+  // macros.
+  DynamicMacros.reserve_storage(128);
+
+  // If there's a default layer set in EEPROM, we should set that as the default
+  // here.
+  Layer.move(EEPROMSettings.default_layer());
 }
 
+/** loop is the second of the standard Arduino sketch functions.
+  * As you might expect, it runs in a loop, never exiting.
+  *
+  * For Kaleidoscope-based keyboard firmware, you usually just want to
+  * call Kaleidoscope.loop(); and not do anything custom here.
+  */
 
 void loop() {
   Kaleidoscope.loop();

examples/Devices/Keyboardio/Model100/Model100.ino

@@ -0,0 +1,618 @@
+// -*- mode: c++ -*-
+// Copyright 2016-2022 Keyboardio, inc. <jesse@keyboard.io>
+// See "LICENSE" for license details
+
+/**
+ * These #include directives pull in the Kaleidoscope firmware core,
+ * as well as the Kaleidoscope plugins we use in the Model 100's firmware
+ */
+
+// The Kaleidoscope core
+#include "Kaleidoscope.h"
+
+// Support for storing the keymap in EEPROM
+#include "Kaleidoscope-EEPROM-Settings.h"
+#include "Kaleidoscope-EEPROM-Keymap.h"
+
+// Support for communicating with the host via a simple Serial protocol
+#include "Kaleidoscope-FocusSerial.h"
+
+// Support for querying the firmware version via Focus
+#include "Kaleidoscope-FirmwareVersion.h"
+
+// Support for keys that move the mouse
+// #include "Kaleidoscope-MouseKeys.h"
+
+// Support for macros
+#include "Kaleidoscope-Macros.h"
+
+// Support for controlling the keyboard's LEDs
+#include "Kaleidoscope-LEDControl.h"
+
+// Support for "Numpad" mode, which is mostly just the Numpad specific LED mode
+// #include "Kaleidoscope-NumPad.h"
+
+// Support for the "Boot greeting" effect, which pulses the 'LED' button for 10s
+// when the keyboard is connected to a computer (or that computer is powered on)
+#include "Kaleidoscope-LEDEffect-BootGreeting.h"
+
+// Support for LED modes that set all LEDs to a single color
+#include "Kaleidoscope-LEDEffect-SolidColor.h"
+
+// Support for an LED mode that makes all the LEDs 'breathe'
+#include "Kaleidoscope-LEDEffect-Breathe.h"
+
+// Support for an LED mode that makes a red pixel chase a blue pixel across the keyboard
+#include "Kaleidoscope-LEDEffect-Chase.h"
+
+// Support for LED modes that pulse the keyboard's LED in a rainbow pattern
+#include "Kaleidoscope-LEDEffect-Rainbow.h"
+
+// Support for an LED mode that lights up the keys as you press them
+#include "Kaleidoscope-LED-Stalker.h"
+
+// Support for an LED mode that prints the keys you press in letters 4px high
+#include "Kaleidoscope-LED-AlphaSquare.h"
+
+// Support for shared palettes for other plugins, like Colormap below
+#include "Kaleidoscope-LED-Palette-Theme.h"
+
+// Support for an LED mode that lets one configure per-layer color maps
+#include "Kaleidoscope-Colormap.h"
+
+// Support for turning the LEDs off after a certain amount of time
+#include "Kaleidoscope-IdleLEDs.h"
+
+// Support for setting and saving the default LED mode
+#include "Kaleidoscope-DefaultLEDModeConfig.h"
+
+// Support for Keyboardio's internal keyboard testing mode
+#include "Kaleidoscope-HardwareTestMode.h"
+
+// Support for host power management (suspend & wakeup)
+#include "Kaleidoscope-HostPowerManagement.h"
+
+// Support for magic combos (key chords that trigger an action)
+#include "Kaleidoscope-MagicCombo.h"
+
+// Support for USB quirks, like changing the key state report protocol
+#include "Kaleidoscope-USB-Quirks.h"
+
+// Support for secondary actions on keys
+#include "Kaleidoscope-Qukeys.h"
+
+// Support for one-shot modifiers and layer keys
+#include "Kaleidoscope-OneShot.h"
+#include "Kaleidoscope-Escape-OneShot.h"
+
+// Support for dynamic, Chrysalis-editable macros
+#include "Kaleidoscope-DynamicMacros.h"
+
+// Support for SpaceCadet keys
+#include "Kaleidoscope-SpaceCadet.h"
+
+// Support for editable layer names
+#include "Kaleidoscope-LayerNames.h"
+
+// Support for the GeminiPR Stenography protocol
+// #include "Kaleidoscope-Steno.h"
+
+/** This 'enum' is a list of all the macros used by the Model 100's firmware
+  * The names aren't particularly important. What is important is that each
+  * is unique.
+  *
+  * These are the names of your macros. They'll be used in two places.
+  * The first is in your keymap definitions. There, you'll use the syntax
+  * `M(MACRO_NAME)` to mark a specific keymap position as triggering `MACRO_NAME`
+  *
+  * The second usage is in the 'switch' statement in the `macroAction` function.
+  * That switch statement actually runs the code associated with a macro when
+  * a macro key is pressed.
+  */
+
+enum {
+  MACRO_VERSION_INFO,
+  MACRO_ANY,
+};
+
+
+/** The Model 100's key layouts are defined as 'keymaps'. By default, there are three
+  * keymaps: The standard QWERTY keymap, the "Function layer" keymap and the "Numpad"
+  * keymap.
+  *
+  * Each keymap is defined as a list using the 'KEYMAP_STACKED' macro, built
+  * of first the left hand's layout, followed by the right hand's layout.
+  *
+  * Keymaps typically consist mostly of `Key_` definitions. There are many, many keys
+  * defined as part of the USB HID Keyboard specification. You can find the names
+  * (if not yet the explanations) for all the standard `Key_` defintions offered by
+  * Kaleidoscope in these files:
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs/keyboard.h
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs/consumerctl.h
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs/sysctl.h
+  *    https://github.com/keyboardio/Kaleidoscope/blob/master/src/kaleidoscope/key_defs/keymaps.h
+  *
+  * Additional things that should be documented here include
+  *   using ___ to let keypresses fall through to the previously active layer
+  *   using XXX to mark a keyswitch as 'blocked' on this layer
+  *   using ShiftToLayer() and LockLayer() keys to change the active keymap.
+  *   keeping NUM and FN consistent and accessible on all layers
+  *
+  * The PROG key is special, since it is how you indicate to the board that you
+  * want to flash the firmware. However, it can be remapped to a regular key.
+  * When the keyboard boots, it first looks to see whether the PROG key is held
+  * down; if it is, it simply awaits further flashing instructions. If it is
+  * not, it continues loading the rest of the firmware and the keyboard
+  * functions normally, with whatever binding you have set to PROG. More detail
+  * here: https://community.keyboard.io/t/how-the-prog-key-gets-you-into-the-bootloader/506/8
+  *
+  * The "keymaps" data structure is a list of the keymaps compiled into the firmware.
+  * The order of keymaps in the list is important, as the ShiftToLayer(#) and LockLayer(#)
+  * macros switch to key layers based on this list.
+  *
+  *
+
+  * A key defined as 'ShiftToLayer(FUNCTION)' will switch to FUNCTION while held.
+  * Similarly, a key defined as 'LockLayer(NUMPAD)' will switch to NUMPAD when tapped.
+  */
+
+/**
+  * Layers are "0-indexed" -- That is the first one is layer 0. The second one is layer 1.
+  * The third one is layer 2.
+  * This 'enum' lets us use names like QWERTY, FUNCTION, and NUMPAD in place of
+  * the numbers 0, 1 and 2.
+  *
+  */
+
+enum {
+  PRIMARY,
+  // NUMPAD,
+  FUNCTION,
+  ETC,
+};  // layers
+
+
+/**
+  * To change your keyboard's layout from QWERTY to DVORAK or COLEMAK, comment out the line
+  *
+  * #define PRIMARY_KEYMAP_QWERTY
+  *
+  * by changing it to
+  *
+  * // #define PRIMARY_KEYMAP_QWERTY
+  *
+  * Then uncomment the line corresponding to the layout you want to use.
+  *
+  */
+
+// #define PRIMARY_KEYMAP_QWERTY
+// #define PRIMARY_KEYMAP_DVORAK
+// #define PRIMARY_KEYMAP_COLEMAK
+#define PRIMARY_KEYMAP_CUSTOM
+
+
+/* This comment temporarily turns off astyle's indent enforcement
+ *   so we can make the keymaps actually resemble the physical key layout better
+ */
+// clang-format off
+
+KEYMAPS(
+
+  [PRIMARY] = KEYMAP_STACKED
+  (___,          ___,        ___,   ___,   ___,   ___,   Key_LEDEffectNext,
+   ___,          Key_Q,      Key_W, Key_D, Key_F, Key_K, Key_Tab,
+   ___,          Key_A,      Key_S, Key_E, Key_T, Key_G,
+   Key_Backtick, Key_Z,      Key_X, Key_C, Key_V, Key_B, LCTRL(LALT(Key_LeftGui)),
+   GUI_T(Tab), ALT_T(Backspace), CTL_T(Escape), Key_LeftShift,
+   ShiftToLayer(FUNCTION),
+
+   M(MACRO_ANY),              ___,  Key_LeftArrow, Key_DownArrow, Key_UpArrow, Key_RightArrow, ___,
+   Consumer_VolumeIncrement, Key_J, Key_U,         Key_R,         Key_L,       Key_Semicolon,  Key_Backslash,
+                             Key_Y, Key_N,         Key_I,         Key_O,       Key_H,          Key_Quote,
+   Consumer_VolumeDecrement, Key_P, Key_M,         Key_Comma,     Key_Period,  Key_Slash,      ___,
+   Key_RightShift, ALT_T(Enter), Key_Spacebar, GUI_T(Tab),
+   ShiftToLayer(FUNCTION)),
+
+  [FUNCTION] =  KEYMAP_STACKED
+  (___,                  Key_F1,        Key_F2,        Key_F3,                  Key_F4,                   Key_F5,                ___,
+   ___,                  LSHIFT(Key_1), LSHIFT(Key_2), LSHIFT(Key_LeftBracket), LSHIFT(Key_RightBracket), LSHIFT(Key_Backslash), ___,
+   LSHIFT(Key_7),        LSHIFT(Key_3), LSHIFT(Key_4), LSHIFT(Key_9),           LSHIFT(Key_0),            Key_Backslash,
+   LSHIFT(Key_Backtick), LSHIFT(Key_5), LSHIFT(Key_6), Key_LeftBracket,         Key_RightBracket,         LSHIFT(Key_8),         ___,
+   ___, Key_Delete, ___, ___,
+   ___,
+
+   ___, Key_F6,            Key_F7, Key_F8, Key_F9, Key_F10,            Key_F11,
+   ___, Key_Equals,        Key_7,  Key_8,  Key_9,  LSHIFT(Key_Equals), Key_F12,
+        Key_Minus,         Key_4,  Key_5,  Key_6,  Key_Quote,          ___,
+   ___, LSHIFT(Key_Minus), Key_1,  Key_2,  Key_3,  LSHIFT(Key_Quote),  ___,
+   ___, ___, Key_Enter, Key_0,
+   ___),
+
+  [ETC] =  KEYMAP_STACKED
+  (___, ___, ___, ___, ___, ___, ___,
+   ___, ___, ___, ___, ___, ___, ___,
+   ___, ___, ___, ___, ___, ___,
+   ___, ___, ___, ___, ___, ___, ___,
+   ___, ___, ___, ___,
+   ___,
+
+   ___, ___, ___,    ___,    ___,    ___,        ___,
+   ___, ___, Key_F7, Key_F8, Key_F9, Key_Home,   ___,
+        ___, Key_F4, Key_F5, Key_F6, Key_End,    ___,
+   ___, ___, Key_F1, Key_F2, Key_F3, Key_Insert, ___,
+   ___, ___, ___, ___,
+   ___)
+
+) // KEYMAPS(
+
+/* Re-enable astyle's indent enforcement */
+// clang-format on
+
+/** versionInfoMacro handles the 'firmware version info' macro
+ *  When a key bound to the macro is pressed, this macro
+ *  prints out the firmware build information as virtual keystrokes
+ */
+
+static void versionInfoMacro(uint8_t key_state) {
+  if (keyToggledOn(key_state)) {
+    Macros.type(PSTR("Keyboardio Model 100 - Firmware version "));
+    Macros.type(PSTR(KALEIDOSCOPE_FIRMWARE_VERSION));
+  }
+}
+
+/** anyKeyMacro is used to provide the functionality of the 'Any' key.
+ *
+ * When the 'any key' macro is toggled on, a random alphanumeric key is
+ * selected. While the key is held, the function generates a synthetic
+ * keypress event repeating that randomly selected key.
+ *
+ */
+
+static void anyKeyMacro(KeyEvent &event) {
+  if (keyToggledOn(event.state)) {
+    event.key.setKeyCode(Key_A.getKeyCode() + (uint8_t)(millis() % 36));
+    event.key.setFlags(0);
+  }
+}
+
+
+/** macroAction dispatches keymap events that are tied to a macro
+    to that macro. It takes two uint8_t parameters.
+
+    The first is the macro being called (the entry in the 'enum' earlier in this file).
+    The second is the state of the keyswitch. You can use the keyswitch state to figure out
+    if the key has just been toggled on, is currently pressed or if it's just been released.
+
+    The 'switch' statement should have a 'case' for each entry of the macro enum.
+    Each 'case' statement should call out to a function to handle the macro in question.
+
+ */
+
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
+  switch (macro_id) {
+
+  case MACRO_VERSION_INFO:
+    versionInfoMacro(event.state);
+    break;
+
+  case MACRO_ANY:
+    anyKeyMacro(event);
+    break;
+  }
+  return MACRO_NONE;
+}
+
+
+// These 'solid' color effect definitions define a rainbow of
+// LED color modes calibrated to draw 500mA or less on the
+// Keyboardio Model 100.
+
+
+static kaleidoscope::plugin::LEDSolidColor solidRed(160, 0, 0);
+static kaleidoscope::plugin::LEDSolidColor solidOrange(140, 70, 0);
+static kaleidoscope::plugin::LEDSolidColor solidYellow(130, 100, 0);
+static kaleidoscope::plugin::LEDSolidColor solidGreen(0, 160, 0);
+static kaleidoscope::plugin::LEDSolidColor solidBlue(0, 70, 130);
+static kaleidoscope::plugin::LEDSolidColor solidIndigo(0, 0, 170);
+static kaleidoscope::plugin::LEDSolidColor solidViolet(130, 0, 120);
+
+/** toggleLedsOnSuspendResume toggles the LEDs off when the host goes to sleep,
+ * and turns them back on when it wakes up.
+ */
+void toggleLedsOnSuspendResume(kaleidoscope::plugin::HostPowerManagement::Event event) {
+  switch (event) {
+  case kaleidoscope::plugin::HostPowerManagement::Suspend:
+    LEDControl.disable();
+    break;
+  case kaleidoscope::plugin::HostPowerManagement::Resume:
+    LEDControl.enable();
+    break;
+  case kaleidoscope::plugin::HostPowerManagement::Sleep:
+    break;
+  }
+}
+
+/** hostPowerManagementEventHandler dispatches power management events (suspend,
+ * resume, and sleep) to other functions that perform action based on these
+ * events.
+ */
+void hostPowerManagementEventHandler(kaleidoscope::plugin::HostPowerManagement::Event event) {
+  toggleLedsOnSuspendResume(event);
+}
+
+/** This 'enum' is a list of all the magic combos used by the Model 100's
+ * firmware The names aren't particularly important. What is important is that
+ * each is unique.
+ *
+ * These are the names of your magic combos. They will be used by the
+ * `USE_MAGIC_COMBOS` call below.
+ */
+enum {
+  // Toggle between Boot (6-key rollover; for BIOSes and early boot) and NKRO
+  // mode.
+  COMBO_TOGGLE_NKRO_MODE,
+  // Enter test mode
+  COMBO_ENTER_TEST_MODE
+};
+
+/** Wrappers, to be used by MagicCombo. **/
+
+/**
+ * This simply toggles the keyboard protocol via USBQuirks, and wraps it within
+ * a function with an unused argument, to match what MagicCombo expects.
+ */
+static void toggleKeyboardProtocol(uint8_t combo_index) {
+  USBQuirks.toggleKeyboardProtocol();
+}
+
+/**
+ * Toggles between using the built-in keymap, and the EEPROM-stored one.
+ */
+static void toggleKeymapSource(uint8_t combo_index) {
+  if (Layer.getKey == Layer.getKeyFromPROGMEM) {
+    Layer.getKey = EEPROMKeymap.getKey;
+  } else {
+    Layer.getKey = Layer.getKeyFromPROGMEM;
+  }
+}
+
+/**
+ *  This enters the hardware test mode
+ */
+static void enterHardwareTestMode(uint8_t combo_index) {
+  HardwareTestMode.runTests();
+}
+
+
+/** Magic combo list, a list of key combo and action pairs the firmware should
+ * recognise.
+ */
+USE_MAGIC_COMBOS({.action = toggleKeyboardProtocol,
+                  // Left Fn + Esc + Shift
+                  .keys = {R3C6, R2C6, R3C7}},
+                 {.action = enterHardwareTestMode,
+                  // Left Fn + Prog + LED
+                  .keys = {R3C6, R0C0, R0C6}},
+                 {.action = toggleKeymapSource,
+                  // Left Fn + Prog + Shift
+                  .keys = {R3C6, R0C0, R3C7}});
+
+// First, tell Kaleidoscope which plugins you want to use.
+// The order can be important. For example, LED effects are
+// added in the order they're listed here.
+KALEIDOSCOPE_INIT_PLUGINS(
+  // The EEPROMSettings & EEPROMKeymap plugins make it possible to have an
+  // editable keymap in EEPROM.
+  EEPROMSettings,
+  EEPROMKeymap,
+
+  // SpaceCadet can turn your shifts into parens on tap, while keeping them as
+  // Shifts when held. SpaceCadetConfig lets Chrysalis configure some aspects of
+  // the plugin.
+  // SpaceCadet,
+  // SpaceCadetConfig,
+
+  // Focus allows bi-directional communication with the host, and is the
+  // interface through which the keymap in EEPROM can be edited.
+  Focus,
+
+  // FocusSettingsCommand adds a few Focus commands, intended to aid in
+  // changing some settings of the keyboard, such as the default layer (via the
+  // `settings.defaultLayer` command)
+  FocusSettingsCommand,
+
+  // FocusEEPROMCommand adds a set of Focus commands, which are very helpful in
+  // both debugging, and in backing up one's EEPROM contents.
+  FocusEEPROMCommand,
+
+  // The boot greeting effect pulses the LED button for 10 seconds after the
+  // keyboard is first connected
+  BootGreetingEffect,
+
+  // The hardware test mode, which can be invoked by tapping Prog, LED and the
+  // left Fn button at the same time.
+  HardwareTestMode,
+
+  // LEDControl provides support for other LED modes
+  LEDControl,
+
+  // We start with the LED effect that turns off all the LEDs.
+  LEDOff,
+
+  // The rainbow effect changes the color of all of the keyboard's keys at the same time
+  // running through all the colors of the rainbow.
+  LEDRainbowEffect,
+
+  // The rainbow wave effect lights up your keyboard with all the colors of a rainbow
+  // and slowly moves the rainbow across your keyboard
+  LEDRainbowWaveEffect,
+
+  // The chase effect follows the adventure of a blue pixel which chases a red pixel across
+  // your keyboard. Spoiler: the blue pixel never catches the red pixel
+  LEDChaseEffect,
+
+  // These static effects turn your keyboard's LEDs a variety of colors
+  solidRed,
+  solidOrange,
+  solidYellow,
+  solidGreen,
+  solidBlue,
+  solidIndigo,
+  solidViolet,
+
+  // The breathe effect slowly pulses all of the LEDs on your keyboard
+  LEDBreatheEffect,
+
+  // The AlphaSquare effect prints each character you type, using your
+  // keyboard's LEDs as a display
+  AlphaSquareEffect,
+
+  // The stalker effect lights up the keys you've pressed recently
+  StalkerEffect,
+
+  // The LED Palette Theme plugin provides a shared palette for other plugins,
+  // like Colormap below
+  LEDPaletteTheme,
+
+  // The Colormap effect makes it possible to set up per-layer colormaps
+  ColormapEffect,
+
+  // The numpad plugin is responsible for lighting up the 'numpad' mode
+  // with a custom LED effect
+  // NumPad,
+
+  // The macros plugin adds support for macros
+  Macros,
+
+  // The MouseKeys plugin lets you add keys to your keymap which move the mouse.
+  // MouseKeys,
+
+  // The HostPowerManagement plugin allows us to turn LEDs off when then host
+  // goes to sleep, and resume them when it wakes up.
+  HostPowerManagement,
+
+  // The MagicCombo plugin lets you use key combinations to trigger custom
+  // actions - a bit like Macros, but triggered by pressing multiple keys at the
+  // same time.
+  MagicCombo,
+
+  // The USBQuirks plugin lets you do some things with USB that we aren't
+  // comfortable - or able - to do automatically, but can be useful
+  // nevertheless. Such as toggling the key report protocol between Boot (used
+  // by BIOSes) and Report (NKRO).
+  USBQuirks,
+
+  // The Qukeys plugin enables the "Secondary action" functionality in
+  // Chrysalis. Keys with secondary actions will have their primary action
+  // performed when tapped, but the secondary action when held.
+  Qukeys,
+
+  // Enables the "Sticky" behavior for modifiers, and the "Layer shift when
+  // held" functionality for layer keys.
+  OneShot,
+  EscapeOneShot,
+  EscapeOneShotConfig,
+
+  // Turns LEDs off after a configurable amount of idle time.
+  IdleLEDs,
+  PersistentIdleLEDs,
+
+  // Enables dynamic, Chrysalis-editable macros.
+  DynamicMacros,
+
+  // The FirmwareVersion plugin lets Chrysalis query the version of the firmware
+  // programmatically.
+  FirmwareVersion,
+
+  // The LayerNames plugin allows Chrysalis to display - and edit - custom layer
+  // names, to be shown instead of the default indexes.
+  LayerNames,
+
+  // Enables setting, saving (via Chrysalis), and restoring (on boot) the
+  // default LED mode.
+  DefaultLEDModeConfig
+
+  // Enables the GeminiPR Stenography protocol. Unused by default, but with the
+  // plugin enabled, it becomes configurable - and then usable - via Chrysalis.
+  //GeminiPR
+  );
+
+/** The 'setup' function is one of the two standard Arduino sketch functions.
+ * It's called when your keyboard first powers up. This is where you set up
+ * Kaleidoscope and any plugins.
+ */
+void setup() {
+  // First, call Kaleidoscope's internal setup function
+  Kaleidoscope.setup();
+
+  // Set the hue of the boot greeting effect to something that will result in a
+  // nice green color.
+  BootGreetingEffect.hue = 85;
+
+  // While we hope to improve this in the future, the NumPad plugin
+  // needs to be explicitly told which keymap layer is your numpad layer
+  // NumPad.numPadLayer = NUMPAD;
+
+  // We configure the AlphaSquare effect to use RED letters
+  AlphaSquare.color = CRGB(255, 0, 0);
+
+  // We set the brightness of the rainbow effects to 150 (on a scale of 0-255)
+  // This draws more than 500mA, but looks much nicer than a dimmer effect
+  LEDRainbowEffect.brightness(255);
+  LEDRainbowWaveEffect.brightness(255);
+
+  // Set the action key the test mode should listen for to Left Fn
+  HardwareTestMode.setActionKey(R3C6);
+
+  // The LED Stalker mode has a few effects. The one we like is called
+  // 'BlazingTrail'. For details on other options, see
+  // https://github.com/keyboardio/Kaleidoscope/blob/master/docs/plugins/LED-Stalker.md
+  StalkerEffect.variant = STALKER(BlazingTrail);
+
+  // To make the keymap editable without flashing new firmware, we store
+  // additional layers in EEPROM. For now, we reserve space for eight layers. If
+  // one wants to use these layers, just set the default layer to one in EEPROM,
+  // by using the `settings.defaultLayer` Focus command, or by using the
+  // `keymap.onlyCustom` command to use EEPROM layers only.
+  EEPROMKeymap.setup(8);
+
+  // We need to tell the Colormap plugin how many layers we want to have custom
+  // maps for. To make things simple, we set it to eight layers, which is how
+  // many editable layers we have (see above).
+  ColormapEffect.max_layers(8);
+
+  // For Dynamic Macros, we need to reserve storage space for the editable
+  // macros. A kilobyte is a reasonable default.
+  DynamicMacros.reserve_storage(1024);
+
+  // If there's a default layer set in EEPROM, we should set that as the default
+  // here.
+  Layer.move(EEPROMSettings.default_layer());
+
+  // To avoid any surprises, SpaceCadet is turned off by default. However, it
+  // can be permanently enabled via Chrysalis, so we should only disable it if
+  // no configuration exists.
+  // SpaceCadetConfig.disableSpaceCadetIfUnconfigured();
+  // SpaceCadet.disable();
+
+  // Editable layer names are stored in EEPROM too, and we reserve 16 bytes per
+  // layer for them. We need one extra byte per layer for bookkeeping, so we
+  // reserve 17 / layer in total.
+  LayerNames.reserve_storage(17 * 8);
+
+  // Unless configured otherwise with Chrysalis, we want to make sure that the
+  // firmware starts with LED effects off. This avoids over-taxing devices that
+  // don't have a lot of power to share with USB devices
+  DefaultLEDModeConfig.activateLEDModeIfUnconfigured(&LEDOff);
+}
+
+/** loop is the second of the standard Arduino sketch functions.
+  * As you might expect, it runs in a loop, never exiting.
+  *
+  * For Kaleidoscope-based keyboard firmware, you usually just want to
+  * call Kaleidoscope.loop(); and not do anything custom here.
+  */
+
+void loop() {
+  Kaleidoscope.loop();
+}

examples/Devices/Keyboardio/Model100/sketch.json

@@ -0,0 +1,6 @@
+{
+  "cpu": {
+    "fqbn": "keyboardio:gd32:keyboardio_model_100",
+    "port": ""
+  }
+}

examples/Devices/OLKB/Planck/Planck.ino

@@ -20,17 +20,18 @@
 #include "Kaleidoscope.h"
 #include "Kaleidoscope-Macros.h"
 
-enum {  _QWERTY,
+enum {
+  _QWERTY,
   _COLEMAK,
   _DVORAK,
   _LOWER,
   _RAISE,
   _PLOVER,
   _ADJUST
-     };
+};
 
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
 
 /* Qwerty
@@ -161,7 +162,7 @@ KEYMAPS(
 //    ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___
 //)
 );
-/* *INDENT-ON* */
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(Macros);
 

examples/Devices/SOFTHRUF/Splitography/Splitography.ino

@@ -24,7 +24,7 @@ enum {
   _STENO,
 };
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
 
 /* Steno (GeminiPR)
@@ -45,7 +45,7 @@ KEYMAPS(
                                ,S(A)  ,S(O)     ,S(E)   ,S(U)
   )
 );
-/* *INDENT-ON* */
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(GeminiPR);
 

examples/Devices/Technomancy/Atreus/Atreus.ino

@@ -37,7 +37,7 @@ enum {
 #define Key_Star        LSHIFT(Key_8)
 #define Key_Plus        LSHIFT(Key_Equals)
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
   [QWERTY] = KEYMAP_STACKED
   (
@@ -78,13 +78,14 @@ KEYMAPS(
       ,___      ,___           ,M(QWERTY),Key_PrintScreen ,Key_ScrollLock ,Consumer_PlaySlashPause
    )
 )
-/* *INDENT-ON* */
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(Macros);
 
-const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
-  switch (macroIndex) {
+  switch (macro_id) {
   case QWERTY:
+    if (keyToggledOn(event.state))
       Layer.move(QWERTY);
     break;
   default:

examples/Devices/gHeavy/ButterStick/ButterStick.ino

@@ -24,14 +24,14 @@ enum {
 };
 
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
     [_DEFAULT] = KEYMAP(
       Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Y, Key_U, Key_I, Key_O, Key_P,
       Key_A, Key_S, Key_D, Key_F, Key_G, Key_H, Key_J, Key_K, Key_L, Key_Semicolon
     )
 );
-/* *INDENT-ON* */
+// clang-format on
 
 void setup() {
   Kaleidoscope.setup();

examples/Devices/gHeavy/FaunchPad/FaunchPad.ino

@@ -24,13 +24,13 @@ enum {
 };
 
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
     [_DEFAULT] = KEYMAP(
       Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Y, Key_U, Key_I
     )
 );
-/* *INDENT-ON* */
+// clang-format on
 
 void setup() {
   Kaleidoscope.setup();

examples/Features/AppSwitcher/AppSwitcher.cpp

@@ -0,0 +1,79 @@
+/* -*- mode: c++ -*-
+ * AppSwitcher -- A Kaleidoscope Example
+ * Copyright (C) 2021  Keyboardio, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define KALEIDOSCOPE_HOSTOS_GUESSER 1
+
+#include <Kaleidoscope-HostOS.h>
+
+#include "AppSwitcher.h"
+
+namespace kaleidoscope {
+namespace plugin {
+
+EventHandlerResult AppSwitcher::onKeyEvent(KeyEvent &event) {
+  // Ignore all key releases
+  if (keyToggledOff(event.state))
+    return EventHandlerResult::OK;
+
+  if (event.key == AppSwitcher_Next || event.key == AppSwitcher_Prev) {
+    bool add_shift_flag = false;
+    if (event.key == AppSwitcher_Prev) {
+      add_shift_flag = true;
+    }
+
+    // For good measure:
+    event.state |= INJECTED;
+
+    // If AppSwitcher was not already active, hold its modifier first.
+    if (!active_addr_.isValid()) {
+      if (::HostOS.os() == hostos::MACOS) {
+        event.key = Key_LeftGui;
+      } else {
+        event.key = Key_LeftAlt;
+      }
+      Runtime.handleKeyEvent(event);
+    }
+
+    // Clear the event's key address so we don't clobber the modifier.
+    event.addr.clear();
+    event.key = Key_Tab;
+    if (add_shift_flag)
+      event.key.setFlags(SHIFT_HELD);
+    // Press tab
+    Runtime.handleKeyEvent(event);
+    // Change state to release; this will get processed when we return OK below.
+    event.state = WAS_PRESSED | INJECTED;
+  } else if (active_addr_.isValid()) {
+    // If any non-AppSwitcher key is pressed while AppSwitcher is active, that
+    // will close AppSwitcher instead of processing that keypress. We mask the
+    // address of the key that closed AppSwitcher so that its release doesn't
+    // have any effect. Then we turn the event for that key's press into an
+    // event for the release of the AppSwitcher's modifier key.
+    live_keys.mask(event.addr);
+    event.addr  = active_addr_;
+    event.state = WAS_PRESSED | INJECTED;
+    event.key   = live_keys[event.addr];
+    // Turn off AppSwitcher:
+    active_addr_.clear();
+  }
+  return EventHandlerResult::OK;
+}
+
+}  // namespace plugin
+}  // namespace kaleidoscope
+
+kaleidoscope::plugin::AppSwitcher AppSwitcher;

examples/Features/AppSwitcher/AppSwitcher.h

@@ -0,0 +1,42 @@
+/* -*- mode: c++ -*-
+ * AppSwitcher -- A Kaleidoscope Example
+ * Copyright (C) 2021  Keyboardio, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <Kaleidoscope.h>
+#include "Kaleidoscope-Ranges.h"
+
+constexpr Key AppSwitcher_Next{kaleidoscope::ranges::SAFE_START};
+constexpr uint16_t _prev_val = AppSwitcher_Next.getRaw() + 1;
+constexpr Key AppSwitcher_Prev{_prev_val};
+
+namespace kaleidoscope {
+namespace plugin {
+
+class AppSwitcher : public kaleidoscope::Plugin {
+
+ public:
+  EventHandlerResult onKeyEvent(KeyEvent &event);
+
+ private:
+  KeyAddr active_addr_ = KeyAddr::none();
+};
+
+}  // namespace plugin
+}  // namespace kaleidoscope
+
+extern kaleidoscope::plugin::AppSwitcher AppSwitcher;

examples/Features/AppSwitcher/AppSwitcher.ino

@@ -17,12 +17,12 @@
 
 #include "Kaleidoscope.h"
 #include "Kaleidoscope-EEPROM-Settings.h"
-#include "Kaleidoscope-Macros.h"
 #include "Kaleidoscope-HostOS.h"
+#include "Kaleidoscope-Ranges.h"
 
-#include "Macros.h"
+#include "AppSwitcher.h"
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -32,7 +32,7 @@ KEYMAPS(
    Key_PageDown,   Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape,
 
    Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,
-   M(M_APPSWITCH),
+   AppSwitcher_Next,
 
    Key_skip,  Key_6, Key_7, Key_8,     Key_9,      Key_0,         Key_skip,
    Key_Enter, Key_Y, Key_U, Key_I,     Key_O,      Key_P,         Key_Equals,
@@ -40,24 +40,13 @@ KEYMAPS(
    Key_skip,  Key_N, Key_M, Key_Comma, Key_Period, Key_Slash,     Key_Minus,
 
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
-   M(M_APPCANCEL)
+   AppSwitcher_Prev
    ),
 )
-/* *INDENT-ON* */
+// clang-format on
 
-const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
+KALEIDOSCOPE_INIT_PLUGINS(HostOS,
-  switch (macroIndex) {
+                          AppSwitcher);
-  case M_APPSWITCH:
-    return macroAppSwitch(keyState);
-  case M_APPCANCEL:
-    return macroAppCancel(keyState);
-  }
-  return MACRO_NONE;
-}
-
-KALEIDOSCOPE_INIT_PLUGINS(EEPROMSettings,
-                          HostOS,
-                          Macros);
 
 void setup() {
   Kaleidoscope.setup();
@@ -67,6 +56,5 @@ void setup() {
 }
 
 void loop() {
-  macroAppSwitchLoop();
   Kaleidoscope.loop();
 }

examples/Features/AppSwitcher/Macros.cpp

@@ -1,65 +0,0 @@
-/* -*- mode: c++ -*-
- * AppSwitcher -- A Kaleidoscope Example
- * Copyright (C) 2016-2018  Keyboardio, Inc.
- *
- * This program is free software: you can redistribute it and/or modify it under
- * the terms of the GNU General Public License as published by the Free Software
- * Foundation, version 3.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define KALEIDOSCOPE_HOSTOS_GUESSER 1
-
-#include <Kaleidoscope-HostOS.h>
-
-#include "Macros.h"
-
-namespace H = kaleidoscope::hostos;
-
-static bool appSwitchActive = false;
-
-const macro_t *macroAppSwitch(uint8_t keyState) {
-  appSwitchActive = true;
-
-  // Key was just pressed, or is being held
-  if (keyIsPressed(keyState)) {
-    if (HostOS.os() == H::OSX)
-      return MACRO(Dr(Key_LeftGui), D(Tab));
-    else
-      return MACRO(Dr(Key_LeftAlt), D(Tab));
-  }
-  // Key was just released
-  if (keyToggledOff(keyState)) {
-    if (HostOS.os() == H::OSX)
-      return MACRO(U(Tab), Dr(Key_LeftGui));
-    else
-      return MACRO(U(Tab), Dr(Key_LeftAlt));
-  }
-  // otherwise we do nothing
-  return MACRO_NONE;
-}
-
-const macro_t *macroAppCancel(uint8_t keyState) {
-  if (keyToggledOn(keyState))
-    appSwitchActive = false;
-  return MACRO_NONE;
-}
-
-void macroAppSwitchLoop() {
-  Key mod = Key_LeftAlt;
-
-  if (HostOS.os() == H::OSX)
-    mod = Key_LeftGui;
-
-  // if appSwitchActive is true, we continue holding Alt.
-  if (appSwitchActive) {
-    handleKeyswitchEvent(mod, UnknownKeyswitchLocation, IS_PRESSED);
-  }
-}

examples/Features/CycleTimeReport/CycleTimeReport.ino

@@ -18,7 +18,7 @@
 #include <Kaleidoscope.h>
 #include <Kaleidoscope-CycleTimeReport.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -38,13 +38,22 @@ KEYMAPS(
     Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
     Key_skip),
 )
-// *INDENT-ON*
+// clang-format on
+
+// Override CycleTimeReport's reporting function:
+void kaleidoscope::plugin::CycleTimeReport::report(uint16_t mean_cycle_time) {
+  Serial.print(F("average loop time = "));
+  Serial.println(mean_cycle_time, DEC);
+}
 
 KALEIDOSCOPE_INIT_PLUGINS(CycleTimeReport);
 
 void setup() {
   Kaleidoscope.serialPort().begin(9600);
   Kaleidoscope.setup();
+
+  // Change the report interval to 2 seconds:
+  CycleTimeReport.setReportInterval(2000);
 }
 
 void loop() {

examples/Features/EEPROM/DynamicMacros/DynamicMacros.ino

@@ -21,7 +21,7 @@
 #include <Kaleidoscope-DynamicMacros.h>
 #include <Kaleidoscope-FocusSerial.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (Key_NoKey,         Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -40,14 +40,13 @@ KEYMAPS(
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
    Key_skip),
 )
-// *INDENT-ON*
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(
   EEPROMSettings,
   EEPROMKeymap,
   DynamicMacros,
-  Focus
+  Focus);
-);
 
 void setup() {
   Kaleidoscope.setup();

examples/Features/EEPROM/EEPROM-Keymap-Programmer/EEPROM-Keymap-Programmer.ino

@@ -21,7 +21,7 @@
 #include <Kaleidoscope-EEPROM-Keymap-Programmer.h>
 #include <Kaleidoscope-Macros.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (M(0),              Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -40,10 +40,10 @@ KEYMAPS(
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
    Key_NoKey),
 )
-// *INDENT-ON*
+// clang-format on
 
-const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
-  if (macroIndex == 0 && keyToggledOff(keyState)) {
+  if (macro_id == 0 && keyToggledOff(event.state)) {
     EEPROMKeymapProgrammer.activate();
   }
 

examples/Features/EEPROM/EEPROM-Keymap/EEPROM-Keymap.ino

@@ -19,7 +19,7 @@
 #include <Kaleidoscope-EEPROM-Keymap.h>
 #include <Kaleidoscope-FocusSerial.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (Key_NoKey,         Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -38,7 +38,7 @@ KEYMAPS(
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
    Key_skip),
 )
-// *INDENT-ON*
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(EEPROMKeymap, Focus);
 

examples/Features/EEPROM/EEPROM-Settings/EEPROM-Settings.ino

@@ -18,7 +18,7 @@
 #include <Kaleidoscope.h>
 #include <Kaleidoscope-EEPROM-Settings.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (Key_NoKey,         Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -37,7 +37,7 @@ KEYMAPS(
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
    Key_skip),
 )
-// *INDENT-ON*
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(EEPROMSettings);
 

examples/Features/FocusSerial/FocusSerial.ino

@@ -18,7 +18,7 @@
 #include <Kaleidoscope.h>
 #include <Kaleidoscope-FocusSerial.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (Key_NoKey,         Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -37,20 +37,20 @@ KEYMAPS(
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
    Key_skip),
 )
-// *INDENT-OFF*
+// clang-format on
 
 namespace kaleidoscope {
 class FocusTestCommand : public Plugin {
  public:
   FocusTestCommand() {}
 
-  EventHandlerResult onFocusEvent(const char *command) {
+  EventHandlerResult onFocusEvent(const char *input) {
     const char *cmd = PSTR("test");
 
-    if (::Focus.handleHelp(command, cmd))
+    if (::Focus.inputMatchesHelp(input))
-      return EventHandlerResult::OK;
+      return ::Focus.printHelp(cmd);
 
-    if (strcmp_P(command, cmd) == 0) {
+    if (::Focus.inputMatchesCommand(input, cmd)) {
       ::Focus.send(F("ok!"));
       return EventHandlerResult::EVENT_CONSUMED;
     }
@@ -63,14 +63,15 @@ class FocusHelpCommand : public Plugin {
  public:
   FocusHelpCommand() {}
 
-  EventHandlerResult onFocusEvent(const char *command) {
+  EventHandlerResult onFocusEvent(const char *input) {
-    ::Focus.handleHelp(command, PSTR("help"));
+    if (::Focus.inputMatchesHelp(input))
+      return ::Focus.printHelp(PSTR("help"));
 
     return EventHandlerResult::OK;
   }
 };
 
-}
+}  // namespace kaleidoscope
 
 kaleidoscope::FocusTestCommand FocusTestCommand;
 kaleidoscope::FocusHelpCommand FocusHelpCommand;

examples/Features/GhostInTheFirmware/GhostInTheFirmware.ino

@@ -16,119 +16,90 @@
  */
 
 #include <Kaleidoscope.h>
+#include <Kaleidoscope-LEDControl.h>
 #include <Kaleidoscope-GhostInTheFirmware.h>
 #include <Kaleidoscope-LED-Stalker.h>
 #include <Kaleidoscope-Macros.h>
 
-// *INDENT-OFF*
+// This sketch is set up to demonstrate the GhostInTheFirmware plugin. The left
+// palm key will activate the plugin, virtually pressing each key on the bottom
+// row in sequence, and lighting up the keys using the Stalker LED effect. It
+// will type out the letters from A to N, but the right palm key can be used to
+// toggle the custom EventDropper plugin to suppress USB output.
+
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
-  (___, ___, ___, ___, ___, ___, M(0),
+  (___, ___, ___, ___, ___, ___, ___,
    ___, ___, ___, ___, ___, ___, ___,
    ___, ___, ___, ___, ___, ___,
-   ___, ___, ___, ___, ___, ___, ___,
+   Key_A, Key_B, Key_C, Key_D, Key_E, Key_F, Key_G,
 
    ___, ___, ___, ___,
-   ___,
+   M(0),
 
    ___, ___, ___, ___, ___, ___, ___,
    ___, ___, ___, ___, ___, ___, ___,
         ___, ___, ___, ___, ___, ___,
-   ___, ___, ___, ___, ___, ___, ___,
+   Key_H, Key_I, Key_J, Key_K, Key_L, Key_M, Key_N,
 
    ___, ___, ___, ___,
-   ___),
+   M(1)),
         )
-// *INDENT-ON*
+// clang-format on
 
-class EventDropper_ : public kaleidoscope::Plugin {
+namespace kaleidoscope {
- public:
+namespace plugin {
-  EventDropper_() {}
 
-  kaleidoscope::EventHandlerResult onKeyswitchEvent(Key &mapped_key, KeyAddr key_addr, uint8_t key_state) {
+class EventDropper : public Plugin {
-    return kaleidoscope::EventHandlerResult::EVENT_CONSUMED;
+ public:
+  EventHandlerResult onKeyEvent(KeyEvent &event) {
+    if (active_)
+      return EventHandlerResult::EVENT_CONSUMED;
+    return EventHandlerResult::OK;
   }
+  void toggle() {
+    active_ = !active_;
+  }
+
+ private:
+  bool active_ = false;
 };
 
-static EventDropper_ EventDropper;
+}  // namespace plugin
+}  // namespace kaleidoscope
 
-const macro_t *macroAction(uint8_t macro_index, uint8_t key_state) {
+kaleidoscope::plugin::EventDropper EventDropper;
-  if (macro_index == 0 && keyToggledOn(key_state))
+
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
+  if (macro_id == 0 && keyToggledOn(event.state))
     GhostInTheFirmware.activate();
+  if (macro_id == 1 && keyToggledOn(event.state))
+    EventDropper.toggle();
 
   return MACRO_NONE;
 }
 
 static const kaleidoscope::plugin::GhostInTheFirmware::GhostKey ghost_keys[] PROGMEM = {
-  {0, 6, 200, 50},
+  {KeyAddr(3, 0), 200, 50},
-  {0, 5, 200, 50},
+  {KeyAddr(3, 1), 200, 50},
-  {0, 4, 200, 50},
+  {KeyAddr(3, 2), 200, 50},
-  {0, 3, 200, 50},
+  {KeyAddr(3, 3), 200, 50},
-  {0, 2, 200, 50},
+  {KeyAddr(3, 4), 200, 50},
-  {0, 1, 200, 50},
+  {KeyAddr(3, 5), 200, 50},
-  {0, 0, 200, 50},
+  {KeyAddr(2, 6), 200, 50},
-  {1, 0, 200, 50},
+  {KeyAddr(2, 9), 200, 50},
-  {1, 1, 200, 50},
+  {KeyAddr(3, 10), 200, 50},
-  {1, 2, 200, 50},
+  {KeyAddr(3, 11), 200, 50},
-  {1, 3, 200, 50},
+  {KeyAddr(3, 12), 200, 50},
-  {1, 4, 200, 50},
+  {KeyAddr(3, 13), 200, 50},
-  {1, 5, 200, 50},
+  {KeyAddr(3, 14), 200, 50},
-  {1, 6, 200, 50},
+  {KeyAddr(3, 15), 200, 50},
-  {2, 6, 200, 50},
+
-  {2, 5, 200, 50},
+  {KeyAddr::none(), 0, 0}};
-  {2, 4, 200, 50},
-  {2, 3, 200, 50},
-  {2, 2, 200, 50},
-  {2, 1, 200, 50},
-  {2, 0, 200, 50},
-  {3, 0, 200, 50},
-  {3, 1, 200, 50},
-  {3, 3, 200, 50},
-  {3, 4, 200, 50},
-  {3, 5, 200, 50},
-  {0, 7, 200, 50},
-  {1, 7, 200, 50},
-  {2, 7, 200, 50},
-  {3, 7, 200, 50},
-  {3, 6, 200, 50},
-
-  {3, 9, 200, 50},
-  {3, 8, 200, 50},
-  {2, 8, 200, 50},
-  {1, 8, 200, 50},
-  {0, 8, 200, 50},
-  {3, 10, 200, 50},
-  {3, 11, 200, 50},
-  {3, 12, 200, 50},
-  {3, 13, 200, 50},
-  {3, 14, 200, 50},
-  {3, 15, 200, 50},
-  {2, 15, 200, 50},
-  {2, 14, 200, 50},
-  {2, 13, 200, 50},
-  {2, 12, 200, 50},
-  {2, 11, 200, 50},
-  {2, 10, 200, 50},
-  {2, 9, 200, 50},
-  {1, 9, 200, 50},
-  {1, 10, 200, 50},
-  {1, 11, 200, 50},
-  {1, 12, 200, 50},
-  {1, 13, 200, 50},
-  {1, 14, 200, 50},
-  {1, 15, 200, 50},
-  {0, 15, 200, 50},
-  {0, 14, 200, 50},
-  {0, 13, 200, 50},
-  {0, 12, 200, 50},
-  {0, 11, 200, 50},
-  {0, 10, 200, 50},
-  {0, 9, 200, 50},
-
-  {0, 0, 0, 0}
-};
 
 KALEIDOSCOPE_INIT_PLUGINS(GhostInTheFirmware,
+                          LEDControl,
                           StalkerEffect,
                           Macros,
                           EventDropper);

examples/Features/HostOS/HostOS.ino

@@ -19,7 +19,7 @@
 #include <Kaleidoscope-EEPROM-Settings.h>
 #include <Kaleidoscope-HostOS.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (Key_NoKey,    Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -38,7 +38,7 @@ KEYMAPS(
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
    Key_skip),
 )
-// *INDENT-ON*
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(EEPROMSettings, HostOS);
 

examples/Features/HostPowerManagement/HostPowerManagement.ino

@@ -20,7 +20,7 @@
 #include <Kaleidoscope-LEDControl.h>
 #include <Kaleidoscope-HostPowerManagement.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -41,7 +41,7 @@ KEYMAPS(
     Key_NoKey
   ),
 )
-// *INDENT-ON*
+// clang-format on
 
 void hostPowerManagementEventHandler(kaleidoscope::plugin::HostPowerManagement::Event event) {
   switch (event) {

examples/Features/Layers/Layers.ino

@@ -19,9 +19,13 @@
 #include <Kaleidoscope-FocusSerial.h>
 #include <Kaleidoscope-MouseKeys.h>
 
-enum { PRIMARY, NUMPAD, FUNCTION }; // layers
+enum {
+  PRIMARY,
+  NUMPAD,
+  FUNCTION,
+};  // layers
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [PRIMARY] = KEYMAP_STACKED
   (___,          Key_1, Key_2, Key_3, Key_4, Key_5, XXX,
@@ -68,10 +72,10 @@ KEYMAPS(
    ___, ___, Key_Enter, ___,
    ___)
 )
-// *INDENT-OFF*
+// clang-format on
 
 namespace kaleidoscope {
-class LayerDumper: public Plugin {
+class LayerDumper : public Plugin {
  public:
   LayerDumper() {}
 
@@ -89,7 +93,7 @@ class LayerDumper: public Plugin {
   }
 };
 
-}
+}  // namespace kaleidoscope
 
 kaleidoscope::LayerDumper LayerDumper;
 

examples/Features/MouseKeys/MouseKeys.ino

@@ -0,0 +1,76 @@
+/* -*- mode: c++ -*-
+ * Kaleidoscope - A Kaleidoscope example
+ * Copyright (C) 2016-2022  Keyboard.io, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DEBUG_SERIAL false
+
+#include <Kaleidoscope.h>
+#include <Kaleidoscope-MouseKeys.h>
+
+enum {
+  PRIMARY,
+  MOUSEKEYS,
+};
+
+// clang-format off
+KEYMAPS(
+  [PRIMARY] = KEYMAP_STACKED
+  (Key_NoKey,    Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
+   Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab,
+   Key_PageUp,   Key_A, Key_S, Key_D, Key_F, Key_G,
+   Key_PageDown, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape,
+
+   Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,
+   ShiftToLayer(MOUSEKEYS),
+
+   Key_skip,  Key_6, Key_7, Key_8,     Key_9,      Key_0,         Key_skip,
+   Key_Enter, Key_Y, Key_U, Key_I,     Key_O,      Key_P,         Key_Equals,
+              Key_H, Key_J, Key_K,     Key_L,      Key_Semicolon, Key_Quote,
+   Key_skip,  Key_N, Key_M, Key_Comma, Key_Period, Key_Slash,     Key_Minus,
+
+   Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
+   LockLayer(MOUSEKEYS)
+   ),
+
+  [MOUSEKEYS] =  KEYMAP_STACKED
+  (___, ___, ___,           ___,           ___,             ___,             ___,
+   ___, ___, ___,           ___,           Key_mouseWarpNW, Key_mouseWarpNE, ___,
+   ___, ___, ___,           ___,           Key_mouseWarpSW, Key_mouseWarpSE,
+   ___, ___, Key_mouseBtnL, Key_mouseBtnM, Key_mouseBtnR,   ___,             ___,
+   ___, ___, ___, ___,
+   ___,
+
+   ___, ___, ___,         ___,         ___,        ___, ___,
+   ___, ___, ___,         Key_mouseUp, ___,        ___, ___,
+        ___, Key_mouseUp, Key_mouseDn, Key_mouseR, ___, ___,
+   ___, ___, ___,         ___,         ___,        ___, ___,
+   ___, ___, ___, ___,
+   ___)
+)
+// clang-format on
+
+
+KALEIDOSCOPE_INIT_PLUGINS(MouseKeys);
+
+void setup() {
+  Kaleidoscope.setup();
+  MouseKeys.setSpeedLimit(100);
+  MouseKeys.setWarpGridSize(MOUSE_WARP_GRID_2X2);
+}
+
+void loop() {
+  Kaleidoscope.loop();
+}

examples/Features/MouseKeys/sketch.json

@@ -0,0 +1,6 @@
+{
+  "cpu": {
+    "fqbn": "keyboardio:avr:model01",
+    "port": ""
+  }
+}

examples/Features/ShiftBlocker/ShiftBlocker.ino

@@ -0,0 +1,105 @@
+/* -*- mode: c++ -*-
+ * ShiftBlocker -- A Kaleidoscope Example
+ * Copyright (C) 2016-2022  Keyboard.io, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Kaleidoscope.h"
+#include "Kaleidoscope-Macros.h"
+
+// clang-format off
+KEYMAPS(
+  [0] = KEYMAP_STACKED
+  (
+   Key_NoKey,    Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
+   Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab,
+   Key_PageUp,   Key_A, Key_S, Key_D, Key_F, Key_G,
+   Key_PageDown,   Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape,
+
+   Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,
+   M(0),
+
+   Key_skip,  Key_6, Key_7, Key_8,     Key_9,      Key_0,         Key_skip,
+   Key_Enter, Key_Y, Key_U, Key_I,     Key_O,      Key_P,         Key_Equals,
+              Key_H, Key_J, Key_K,     Key_L,      Key_Semicolon, Key_Quote,
+   Key_skip,  Key_N, Key_M, Key_Comma, Key_Period, Key_Slash,     Key_Minus,
+
+   Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
+   M(0)
+   ),
+)
+// clang-format on
+
+namespace kaleidoscope {
+namespace plugin {
+
+// When activated, this plugin will suppress any `Shift` key (including modifier
+// combos with `Shift`) before it's added to the HID report.
+class ShiftBlocker : public Plugin {
+
+ public:
+  EventHandlerResult onAddToReport(Key key) {
+    if (active_ && key.isKeyboardShift())
+      return EventHandlerResult::ABORT;
+    return EventHandlerResult::OK;
+  }
+
+  void enable() {
+    active_ = true;
+  }
+  void disable() {
+    active_ = false;
+  }
+
+ private:
+  bool active_{false};
+};
+
+}  // namespace plugin
+}  // namespace kaleidoscope
+
+kaleidoscope::plugin::ShiftBlocker ShiftBlocker;
+
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
+  if (keyToggledOn(event.state)) {
+    switch (macro_id) {
+    case 0:
+      // First, enable ShiftBlocker to suppress any held `Shift` key(s).
+      ShiftBlocker.enable();
+      // Tap `AltGr` + `7` to activate the grave accent dead key.
+      Macros.tap(RALT(Key_7));
+      // Disable ShiftBlocker so it won't affect the `E` event.
+      ShiftBlocker.disable();
+      // Change the Macros key into a plain `E` key before its press event is
+      // processed.
+      event.key = Key_E;
+      break;
+    }
+  }
+  return MACRO_NONE;
+}
+
+KALEIDOSCOPE_INIT_PLUGINS(Macros,
+                          ShiftBlocker);
+
+void setup() {
+  Kaleidoscope.setup();
+  // Uncomment to manually set the OS, as Kaleidoscope will not autodetect it.
+  // (Possible values are in HostOS.h.)
+  // HostOS.os(kaleidoscope::hostos::LINUX);
+}
+
+void loop() {
+  Kaleidoscope.loop();
+}

examples/Features/ShiftBlocker/sketch.json

@@ -0,0 +1,6 @@
+{
+  "cpu": {
+    "fqbn": "keyboardio:avr:model01",
+    "port": ""
+  }
+}

examples/Features/Steno/Steno.ino

@@ -20,7 +20,7 @@
 #include <Kaleidoscope.h>
 #include <Kaleidoscope-Steno.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (Key_NoKey,         Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -56,7 +56,7 @@ KEYMAPS(
    S(E), S(U), XXX, S(RE2),
    ___),
 )
-// *INDENT-ON*
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(GeminiPR);
 

examples/Features/TypingBreaks/TypingBreaks.ino

@@ -19,7 +19,7 @@
 #include <Kaleidoscope-EEPROM-Settings.h>
 #include <Kaleidoscope-TypingBreaks.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -39,7 +39,7 @@ KEYMAPS(
     Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
     Key_skip),
 )
-// *INDENT-ON*
+// clang-format on
 
 KALEIDOSCOPE_INIT_PLUGINS(EEPROMSettings, TypingBreaks);
 

examples/Internal/Sketch_Exploration/Sketch_Exploration.ino

@@ -21,7 +21,7 @@
 // This example demonstrates how a plugin can gather information about
 // the keymap at compile time, e.g. to adapt its behavior, safe resources, ...
 
-/* *INDENT-OFF* */
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -42,7 +42,7 @@ KEYMAPS(
    Key_NoKey
   ),
 )
-/* *INDENT-ON* */
+// clang-format on
 
 using namespace kaleidoscope::sketch_exploration;  // NOLINT(build/namespaces)
 
@@ -54,7 +54,8 @@ class CPlugin : public kaleidoscope::Plugin {};
 class APlugin : public kaleidoscope::Plugin {
 
  public:
-  APlugin() : has_key_1_{false} {}
+  APlugin()
+    : has_key_1_{false} {}
 
   template<typename _Sketch>
   kaleidoscope::EventHandlerResult exploreSketch() {
@@ -117,7 +118,6 @@ class APlugin : public kaleidoscope::Plugin {
   }
 
  private:
-
   bool has_key_1_;
 };
 
@@ -127,8 +127,7 @@ BPlugin b_plugin;
 KALEIDOSCOPE_INIT_PLUGINS(
   a_plugin1,
   b_plugin,
-  a_plugin2
+  a_plugin2)
-)
 
 void setup() {
   Kaleidoscope.setup();

examples/Keystrokes/AutoShift/AutoShift.ino

@@ -0,0 +1,78 @@
+// -*- mode: c++ -*-
+
+#include <Kaleidoscope.h>
+
+#include <Kaleidoscope-AutoShift.h>
+#include <Kaleidoscope-EEPROM-Settings.h>
+#include <Kaleidoscope-EEPROM-Keymap.h>
+#include <Kaleidoscope-FocusSerial.h>
+#include <Kaleidoscope-Macros.h>
+
+enum {
+  TOGGLE_AUTOSHIFT,
+};
+
+// clang-format off
+KEYMAPS(
+  [0] = KEYMAP_STACKED
+  (
+      Key_NoKey,    Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
+      Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab,
+      Key_PageUp,   Key_A, Key_S, Key_D, Key_F, Key_G,
+      Key_PageDown, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape,
+
+      Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,
+      XXX,
+
+      M(TOGGLE_AUTOSHIFT), Key_6, Key_7, Key_8,     Key_9,      Key_0,         Key_skip,
+      Key_Enter,           Key_Y, Key_U, Key_I,     Key_O,      Key_P,         Key_Equals,
+                           Key_H, Key_J, Key_K,     Key_L,      Key_Semicolon, Key_Quote,
+      Key_skip,            Key_N, Key_M, Key_Comma, Key_Period, Key_Slash,     Key_Minus,
+
+      Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
+      XXX
+   ),
+)
+// clang-format on
+
+// Defining a macro (on the "any" key: see above) to turn AutoShift on and off
+const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
+  switch (macro_id) {
+  case TOGGLE_AUTOSHIFT:
+    if (keyToggledOn(event.state))
+      AutoShift.toggle();
+    break;
+  }
+  return MACRO_NONE;
+}
+
+// This sketch uses the AutoShiftConfig plugin, which enables run-time
+// configuration of AutoShift configuration settings.  All of the plugins marked
+// "for AutoShiftConfig" are optional; AutoShift itself will work without them.
+KALEIDOSCOPE_INIT_PLUGINS(
+  EEPROMSettings,        // for AutoShiftConfig
+  EEPROMKeymap,          // for AutoShiftConfig
+  Focus,                 // for AutoShiftConfig
+  FocusEEPROMCommand,    // for AutoShiftConfig
+  FocusSettingsCommand,  // for AutoShiftConfig
+  AutoShift,
+  AutoShiftConfig,  // for AutoShiftConfig
+  Macros            // for toggle AutoShift Macro
+);
+
+void setup() {
+  // Enable AutoShift for letter keys and number keys only:
+  AutoShift.setEnabled(AutoShift.letterKeys() | AutoShift.numberKeys());
+  // Add symbol keys to the enabled categories:
+  AutoShift.enable(AutoShift.symbolKeys());
+  // Set the AutoShift long-press time to 150ms:
+  AutoShift.setTimeout(150);
+  // Start with AutoShift turned off:
+  AutoShift.disable();
+
+  Kaleidoscope.setup();
+}
+
+void loop() {
+  Kaleidoscope.loop();
+}

examples/Keystrokes/AutoShift/sketch.json

@@ -0,0 +1,6 @@
+{
+  "cpu": {
+    "fqbn": "keyboardio:avr:model01",
+    "port": ""
+  }
+}

examples/Keystrokes/CharShift/CharShift.ino

@@ -0,0 +1,43 @@
+// -*- mode: c++ -*-
+
+#include <Kaleidoscope.h>
+
+#include <Kaleidoscope-CharShift.h>
+
+// clang-format off
+KEYMAPS(
+  [0] = KEYMAP_STACKED
+  (
+      XXX,          Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
+      Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab,
+      Key_PageUp,   Key_A, Key_S, Key_D, Key_F, Key_G,
+      Key_PageDown, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Escape,
+
+      Key_LeftControl, Key_Backspace, Key_LeftGui, Key_LeftShift,
+      XXX,
+
+      XXX,       Key_6, Key_7, Key_8, Key_9, Key_0,     Key_skip,
+      Key_Enter, Key_Y, Key_U, Key_I, Key_O, Key_P,     Key_Equals,
+                 Key_H, Key_J, Key_K, Key_L, CS(2),     Key_Quote,
+      Key_skip,  Key_N, Key_M, CS(0), CS(1), Key_Slash, Key_Minus,
+
+      Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
+      XXX
+   ),
+)
+// clang-format on
+
+KALEIDOSCOPE_INIT_PLUGINS(CharShift);
+
+void setup() {
+  CS_KEYS(
+    kaleidoscope::plugin::CharShift::KeyPair(Key_Comma, Key_Semicolon),               // CS(0)
+    kaleidoscope::plugin::CharShift::KeyPair(Key_Period, LSHIFT(Key_Semicolon)),      // CS(1)
+    kaleidoscope::plugin::CharShift::KeyPair(LSHIFT(Key_Comma), LSHIFT(Key_Period)),  // CS(2)
+  );
+  Kaleidoscope.setup();
+}
+
+void loop() {
+  Kaleidoscope.loop();
+}

examples/Keystrokes/CharShift/sketch.json

@@ -0,0 +1,6 @@
+{
+  "cpu": {
+    "fqbn": "keyboardio:avr:model01",
+    "port": ""
+  }
+}

examples/Keystrokes/Cycle/Cycle.ino

@@ -18,7 +18,7 @@
 #include <Kaleidoscope.h>
 #include <Kaleidoscope-Cycle.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (Key_NoKey,    Key_1, Key_2, Key_3, Key_4, Key_5, Key_NoKey,
@@ -37,7 +37,7 @@ KEYMAPS(
    Key_RightShift, Key_RightAlt, Key_Spacebar, Key_RightControl,
    Key_Cycle),
 )
-// *INDENT-ON*
+// clang-format on
 
 void cycleAction(Key previous_key, uint8_t cycle_count) {
   if (previous_key == Key_E) {

examples/Keystrokes/DynamicTapDance/DynamicTapDance.ino

@@ -22,7 +22,7 @@
 #include <Kaleidoscope-TapDance.h>
 #include <Kaleidoscope-DynamicTapDance.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -42,7 +42,7 @@ KEYMAPS(
     Key_RightShift, Key_RightAlt, Key_Spacebar, TD(2),
     TD(1)),
 )
-// *INDENT-ON*
+// clang-format on
 
 enum {
   TD_TAB_ESC,

examples/Keystrokes/Escape-OneShot/Escape-OneShot.ino

@@ -1,6 +1,6 @@
 /* -*- mode: c++ -*-
  * Kaleidoscope-Escape-OneShot -- Turn ESC into a key that cancels OneShots, if active.
- * Copyright (C) 2016, 2017, 2018  Keyboard.io, Inc
+ * Copyright (C) 2016-2021  Keyboard.io, Inc
  *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
@@ -16,10 +16,12 @@
  */
 
 #include <Kaleidoscope.h>
+#include <Kaleidoscope-EEPROM-Settings.h>
 #include <Kaleidoscope-OneShot.h>
 #include <Kaleidoscope-Escape-OneShot.h>
+#include <Kaleidoscope-FocusSerial.h>
 
-// *INDENT-OFF*
+// clang-format off
 KEYMAPS(
   [0] = KEYMAP_STACKED
   (
@@ -59,10 +61,13 @@ KEYMAPS(
     ___
   ),
 )
-// *INDENT-ON*
+// clang-format on
 
-KALEIDOSCOPE_INIT_PLUGINS(OneShot,
+KALEIDOSCOPE_INIT_PLUGINS(EEPROMSettings,
-                          EscapeOneShot);
+                          Focus,
+                          OneShot,
+                          EscapeOneShot,
+                          EscapeOneShotConfig);
 
 void setup() {
   Kaleidoscope.setup();