Updated anybar script

anybar-calypso.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

# Regexes
WEBPACK_COMPILED_SUCCESSFULLY_REGEX="^webpack.*compiled successfully"
WEBPACK_COMPILED_WITH_WARNINGS_REGEX="^webpack.*compiled with.*warnings"
WEBPACK_BUILDING_REGEX="webpack building"
WEBPACK_COMPILED_WITH_ERROR_REGEX="webpack.*compiled with.*error"
ERROR_REGEX="ERROR"
RESTARTING_DUE_TO_CHANGES_REGEX="restarting due to changes"
APP_CRASHED_REGEX="app crashed"
TEST_ERROR_REGEX="^[0-9]+\ failing$"

# Handle Ctrl+C to reset icon
trap 'reset_icon; exit 0' SIGINT

main() {
	reset_icon
	tee >(update_status)
}

update_status() {
	while read line
	do
		if [[ "$line" =~ $WEBPACK_COMPILED_SUCCESSFULLY_REGEX ]] || [[ "$line" =~ $WEBPACK_COMPILED_WITH_WARNINGS_REGEX ]]; then
			if [ $HAS_ERROR -eq 0 ]; then
				set_icon "$DONE_COLOR"
			else
				set_icon "$BUILD_ERROR_COLOR"
			fi
		elif [[ "$line" =~ $WEBPACK_BUILDING_REGEX ]]; then
			HAS_ERROR=0
			set_icon "$PROGRESS_COLOR"
		elif [[ "$line" =~ $WEBPACK_COMPILED_WITH_ERROR_REGEX ]]; then
			HAS_ERROR=1
			set_icon "$BUILD_ERROR_COLOR"
		elif [[ "$line" =~ $ERROR_REGEX ]]; then
			HAS_ERROR=1
		# for `npm run test-client:watch`
		elif [[ "$line" =~ $RESTARTING_DUE_TO_CHANGES_REGEX ]]; then
			reset_icon
		# for both test-client and test-client:watch
		elif [[ "$line" =~ $APP_CRASHED_REGEX ]] || [[ "$line" =~ $TEST_ERROR_REGEX ]]; then
			set_icon "$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