Convert java library javac/jar to python

build/android/jar.py

Index: build/android/jar.py
diff --git a/build/android/jar.py b/build/android/jar.py
new file mode 100755
index 0000000000000000000000000000000000000000..fa5591d54e65206d902197cfc12ddec591457afa
--- /dev/null
+++ b/build/android/jar.py
@@ -0,0 +1,54 @@
+#!/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 subprocess
+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
+  subprocess.check_call(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))
+