Calypso AnyBar handler

calypso-anybar-handler.sh

#!/bin/bash

PORT="${PORT:-1738}"
DONE_COLOR="${DONE_COLOR:-"black"}"
PROGRESS_COLOR="${PROGRESS_COLOR:-"white"}"
INITIAL_COLOR="${INITIAL_COLOR:-"white"}"
BUILD_ERROR_COLOR="${BUILD_ERROR_COLOR:-"red"}"
TEST_ERROR_COLOR="${TEST_ERROR_COLOR:-"purple"}"

HAS_ERROR=0

main() {
	reset_icon
	tee >(update_status)
}

update_status() {
	while read line
	do
		if [[ "$line" =~ "webpack: Compiled successfully." ]]; then
			if [ $HAS_ERROR -eq 0 ]; then
				set_icon "$DONE_COLOR"
			else
				set_icon "$BUILD_ERROR_COLOR"
			fi
		elif [[ "$line" =~ "webpack: Compiling..." ]]; then
			HAS_ERROR=0
			set_icon "$PROGRESS_COLOR"
		elif [[ "$line" =~ "ERROR" ]]; then
			HAS_ERROR=1
		# for `npm run test-client:watch`
		elif [[ "$line" =~ "restarting due to changes" ]]; then
			reset_icon
		# for both test-client and test-client:watch
		elif [[ "$line" =~ "app crashed" ]] || [[ "$line" =~ ^[0-9]+\ failing$ ]]; then
			set_icon "$TEST_ERROR_COLOR"
		fi
	done
}

set_icon() {
	echo -n "$1" | nc -4u -w0 localhost $PORT
}

reset_icon() {
	if [ "$INITIAL_COLOR" != "" ] && [ "$INITIAL_COLOR" != "none" ]; then
		set_icon "$INITIAL_COLOR"
	fi
}

main