#!/usr/bin/env python

import os

import optparse

import subprocess

import sys

here = os.path.dirname(__file__)

def main():

    usage = "usage: %prog [file1..fileN]"

    description = """With no file paths given this script will automatically

compress all jQuery-based files of the admin app. Requires the Google Closure

Compiler library and Java version 6 or later."""

    parser = optparse.OptionParser(usage, description=description)

    parser.add_option("-c", dest="compiler", default="~/bin/compiler.jar",

                      help="path to Closure Compiler jar file")

    parser.add_option("-v", "--verbose",

                      action="store_true", dest="verbose")

    parser.add_option("-q", "--quiet",

                      action="store_false", dest="verbose")

    (options, args) = parser.parse_args()

    compiler = os.path.expanduser(options.compiler)

    if not os.path.exists(compiler):

        sys.exit("Google Closure compiler jar file %s not found. Please use the -c option to specify the path." % compiler)

    if not args:

        if options.verbose:

            sys.stdout.write("No filenames given; defaulting to admin scripts\n")

        args = [os.path.join(here, f) for f in [

            "actions.js", "collapse.js", "inlines.js", "prepopulate.js"]]

    for arg in args:

        if not arg.endswith(".js"):

            arg = arg + ".js"

        to_compress = os.path.expanduser(arg)

        if os.path.exists(to_compress):

            to_compress_min = "%s.min.js" % "".join(arg.rsplit(".js"))

            cmd = "java -jar %s --js %s --js_output_file %s" % (compiler, to_compress, to_compress_min)

            if options.verbose:

                sys.stdout.write("Running: %s\n" % cmd)

            subprocess.call(cmd.split())

        else:

            sys.stdout.write("File %s not found. Sure it exists?\n" % to_compress)

if __name__ == '__main__':

    main()