Automatically compile .less and .coffee files

This small python script makes use of watchdog (and sh) to monitor your code directory (recursively) and build less and CoffeeScript files upon edit.

Simply launch it from the relevant folder and it will work in the background.

It should be trivial to add minification (and linting, but I suggest linting in the editor) to the process.

#!/usr/bin/env python2 import watchdog.events import watchdog.observers import sh import time import os # Detach if os.fork(): os._exit(0) coffee = sh.coffee.bake('-c') less = sh.lessc class Handler(watchdog.events.PatternMatchingEventHandler): def __init__(self): watchdog.events.PatternMatchingEventHandler.__init__(self, patterns=['*.less', '*.coffee'], ignore_directories=True, case_sensitive=False) def on_modified(self, event): if event.src_path.lower().endswith('.less'): try: less(event.src_path, event.src_path[:-5] + '.css') except sh.ErrorReturnCode_1 as e: print e.stderr if event.src_path.lower().endswith('.coffee'): try: coffee(event.src_path) except sh.ErrorReturnCode_1 as e: print e.stderr on_created = on_modified if __name__ == "__main__": event_handler = Handler() observer = watchdog.observers.Observer() observer.schedule(event_handler, path='.', recursive=True) observer.start() try: while True: time.sleep(1) except KeyboardInterrupt: observer.stop() observer.join()

It requires coffee (npm install coffee-script) and lessc (npm install less).

Should be compatible with Mac OS X and Linux at least, BSD and Win… maybe.

PyTux

Trips of a curious penguin.

Automatically compile .less and .coffee files