[Android] Auto-generate API 14 resources from the existing API 17 resources.

build/android/gyp/copy_v17_resources.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.
+
+"""Copy resource files and add -v17 to the sub directory names.
+
+This is coupled with generate_v14_resources.py. Please refer to
+generate_v14_resources.py's comment for why we are doing this.
+Or crbug.com/235118 .
+"""
+
+import optparse
+import os
+import shutil
+import sys
+
+from util import build_utils
+
+
+def CopyResourcesInDir(input_dir, output_dir):
+  """Copy all XML resources from input_dir to output_dir."""
+  for input_file in build_utils.FindInDirectory(input_dir, '*.xml'):
+    output_path = os.path.join(output_dir,
+                               os.path.relpath(input_file, input_dir))
+    build_utils.MakeDirectory(os.path.dirname(output_path))
+    shutil.copy2(input_file, output_path)
+
+
+def ParseArgs():
+  """Parses command line options.
+
+  Returns:
+    An options object as from optparse.OptionsParser.parse_args()
+  """
+  parser = optparse.OptionParser()
+  parser.add_option('--res-dir',
+                    help='directory containing resources to be copied')
+  parser.add_option('--res-v17-dir',
+                    help='output directory to which resources will be copied.')
+  parser.add_option('--stamp', help='File to touch on success')
+
+  options, args = parser.parse_args()
+
+  if args:
+    parser.error('No positional arguments should be given.')
+
+  # Check that required options have been provided.
+  required_options = ('res_dir', 'res_v17_dir')
+  build_utils.CheckOptions(options, parser, required=required_options)
+  return options
+
+
+def main(argv):
+  options = ParseArgs()
+
+  build_utils.DeleteDirectory(options.res_v17_dir)
+  build_utils.MakeDirectory(options.res_v17_dir)
+
+  for name in os.listdir(options.res_dir):
+    if not os.path.isdir(os.path.join(options.res_dir, name)):
+      continue
+
+    dir_pieces = name.split('-')
+    resource_type = dir_pieces[0]
+    qualifiers = dir_pieces[1:]
+
+    # We only copy resources under layout*/ and xml*/.
+    if resource_type not in ('layout', 'xml'):
+      continue
+
+    # Skip RTL resources because they are not supported by API 14.
+    if 'ldrtl' in qualifiers:
+      continue
+
+    # Copy all the resource files.
+    input_path = os.path.join(options.res_dir, name)
+    output_path = os.path.join(options.res_v17_dir, name + '-v17')
+    CopyResourcesInDir(input_path, output_path)
+
+  if options.stamp:
+    build_utils.Touch(options.stamp)
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))
+