Add input content checking to some build scripts

build/android/jar.py

-#!/usr/bin/env python
-#
-# Copyright 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import fnmatch
-import optparse
-import os
-import sys
-
-from pylib import build_utils
-
-
-def DoJar(options):
-  class_files = build_utils.FindInDirectory(options.classes_dir, '*.class')
-  for exclude in build_utils.ParseGypList(options.excluded_classes):
-    class_files = filter(
-        lambda f: not fnmatch.fnmatch(f, exclude), class_files)
-
-  jar_path = os.path.abspath(options.jar_path)
-
-  # The paths of the files in the jar will be the same as they are passed in to
-  # the command. Because of this, the command should be run in
-  # options.classes_dir so the .class file paths in the jar are correct.
-  jar_cwd = options.classes_dir
-  class_files = [os.path.relpath(f, jar_cwd) for f in class_files]
-  jar_cmd = ['jar', 'cf0', jar_path] + class_files
-  build_utils.CheckCallDie(jar_cmd, cwd=jar_cwd)
-
-
-def main(argv):
-  parser = optparse.OptionParser()
-  parser.add_option('--classes-dir', help='Directory containing .class files.')
-  parser.add_option('--jar-path', help='Jar output path.')
-  parser.add_option('--excluded-classes',
-      help='List of .class file patterns to exclude from the jar.')
-  parser.add_option('--stamp', help='Path to touch on success.')
-
-  # TODO(newt): remove this once http://crbug.com/177552 is fixed in ninja.
-  parser.add_option('--ignore', help='Ignored.')
-
-  options, _ = parser.parse_args()
-
-  DoJar(options)
-
-  if options.stamp:
-    build_utils.Touch(options.stamp)
-
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))
-