kaleidoscope-builder: Pull the bootloader file from boards.txt

Fixes #697.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

bin/kaleidoscope-builder

@@ -216,6 +216,8 @@ hex_with_bootloader () {
         compile
     fi
 
+    find_bootloader_path
+
     awk '/^:00000001FF/ == 0' "${HEX_FILE_PATH}" > "${HEX_FILE_WITH_BOOTLOADER_PATH}"
     echo "Using ${BOOTLOADER_PATH}"
     ${MD5} "${BOOTLOADER_PATH}"

etc/kaleidoscope-builder.conf

@@ -95,6 +95,20 @@ find_bootloader_ports() {
     DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER} ${BOOTLOADER_VID} ${BOOTLOADER_PID})"
 }
 
+find_bootloader_path() {
+    BOOTLOADER_FILE=$("${ARDUINO_BUILDER}" \
+		            -hardware "${ARDUINO_PATH}/hardware" \
+		            -hardware "${BOARD_HARDWARE_PATH}" \
+		            ${ARDUINO_TOOLS_FLAG:+"${ARDUINO_TOOLS_FLAG}"} ${ARDUINO_TOOLS_PARAM:+"${ARDUINO_TOOLS_PARAM}"} \
+		            -tools "${ARDUINO_PATH}/tools-builder" \
+		            -fqbn "${FQBN}" \
+	 	            -build-path ${ARDUINO_PATH} \
+   		          -dump-prefs  "${SKETCH_DIR}/${SKETCH}.ino" | grep "bootloader\.file=" | cut -d= -f2)
+
+    BOOTLOADER_FILE="${BOOTLOADER_FILE:-caterina/Caterina.hex}"
+    BOOTLOADER_PATH="${BOOTLOADER_PATH:-${BOARD_HARDWARE_PATH}/keyboardio/avr/bootloaders/${BOOTLOADER_FILE}}"
+}
+
 MD5="md5sum"
 
 if [ "${uname_S}" = "Darwin" ]; then
@@ -188,11 +202,10 @@ AVRDUDE_CONF="${AVRDUDE_CONF:-${ARDUINO_TOOLS_PATH}/avr/etc/avrdude.conf}"
 ######
 
 BOARD_HARDWARE_PATH="${BOARD_HARDWARE_PATH:-${ARDUINO_LOCAL_LIB_PATH}/hardware}"
-BOOTLOADER_PATH="${BOOTLOADER_PATH:-${BOARD_HARDWARE_PATH}/keyboardio/avr/bootloaders/caterina/Caterina.hex}"
 
 if [ ! -z "${ARDUINO_TOOLS_PATH}" ]; then
     ARDUINO_TOOLS_PARAM="${ARDUINO_TOOLS_PATH}"
-    ARDUINO_TOOLS_FLAG="-tools" 
+    ARDUINO_TOOLS_FLAG="-tools"
 fi
 
 if [ ! -z "${AVR_GCC_PREFIX}" ]; then