Build coffeescript file

build-coffeescript.sh

#!/bin/bash

if [ $# -ne 1 ]; then
	echo "Usage: $(basename $0) COFFEEFILE"
	echo " - Compile COFFEEFILE into a minified javascript on file changes."
	exit 64
fi

COFFEE=coffee
UGLIFYJS=uglifyjs
WARNBROKEN="tput bel"

echo Watching $1 for changes...

while inotifywait -q --format "%T: %w changed, building..." --timefmt "%c" -e close_write "$1"; do
	$COFFEE -c -m "$1" &&
	  $UGLIFYJS "${1%.coffee}.js" \
	    --source-map "${1%.coffee}.min.map" \
	    --in-source-map "${1%.coffee}.map" \
	    -o "${1%.coffee}.min.js" ||
	  $WARNBROKEN
	echo -ne "  done.\033[0K\r"
done