From 2ba10574d4d029ffc68aa8baea55f1a3abb10edc Mon Sep 17 00:00:00 2001
From: Jesse Vincent <jesse@keyboard.io>
Date: Thu, 22 Oct 2020 23:45:16 -0700
Subject: [PATCH] Simplify defaulting of ARCH and FQBN

---
 bin/kaleidoscope-builder | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/bin/kaleidoscope-builder b/bin/kaleidoscope-builder
index 78b36055..83fd96cc 100755
--- a/bin/kaleidoscope-builder
+++ b/bin/kaleidoscope-builder
@@ -424,11 +424,8 @@ do_compile () {
         # 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
+            : "${ARCH:=avr}"
+            FQBN="keyboardio:${ARCH}:${BOARD}"
         fi
     fi