Translate some ant to python

build/android/dex.py

Index: build/android/dex.py
diff --git a/build/android/dex.py b/build/android/dex.py
new file mode 100644
index 0000000000000000000000000000000000000000..a447a993b637dbdcb3c6495da500832829f03475
--- /dev/null
+++ b/build/android/dex.py
@@ -0,0 +1,41 @@
+#!/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 DoDex(options, paths):
+  dx_binary = os.path.join(options.android_sdk_root, 'platform-tools', 'dx')
+  dex_cmd = [dx_binary, '--dex', '--output', options.dex_path] + paths

[shashi, 2013/03/23 01:00:19]

maybe a verbose option, so that if one wants to debug dex phase, it is easier to
do so using gyp?

+  subprocess.check_call(dex_cmd)

[shashi, 2013/03/23 01:00:19]

Perhaps, later we can have a nice utility method that does subprocess.check_call
and pretty prints the output.

[cjhopman, 2013/03/25 18:00:03]

I think that both of these are things that we may want in the future. This is
already better than ant was as it will actually print the output from the dx
call rather than suppressing it and only printing "null returned 1" on error.

+
+
+def main(argv):
+  parser = optparse.OptionParser()
+  parser.add_option('--android-sdk-root', help='Android sdk root directory.')
+  parser.add_option('--dex-path', help='Dex output path.')
+  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, paths = parser.parse_args()
+
+  DoDex(options, paths)
+
+  if options.stamp:
+    build_utils.Touch(options.stamp)
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))
+