compress.py

#!/usr/bin/env python
import re
import os
import commands
import sys

EXT = ('js', 'css')
JAR = '~/workspace/yuicompressor-2.4.2.jar'

re_ext = re.compile(r'.*\.(%s)$' % '|'.join(EXT), re.I)
re_min = re.compile(r'\.min\.')

def find_file(basedir):
	for fname in os.listdir(basedir):
		string = os.path.join(basedir, fname)
		if os.path.isdir(string):
			for s in find_file(string):
				yield s
		elif re_ext.match(string) and not re_min.search(string):
			yield string


def inject_min(fname):
	return re.sub(r'^(.*)\.([^.]+)$', r'\1.min.\2', fname)


def main(basedir):
	for fname in find_file(basedir):
		fname_min = inject_min(fname)
	 	print '%s -> %s' % (fname, fname_min), commands.getoutput('java -jar %s -o %s %s' % (JAR, fname_min,fname))

if __name__ == '__main__':
	main(sys.argv[1])