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

build/android/gyp/copy_resources_v17.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 optparse
+import os
+import sys
+
+from util import build_utils
+
+
+def copy_resources_in_dir(input_dir, output_dir):

[cjhopman, 2013/04/26 20:57:31]

Chrome uses MixedCase for function names (except for main())

[Kibeom Kim (inactive), 2013/04/27 00:05:07]

Done.

+  """Copy resources in the directory recursively.
+  """
+
+  for root, dirs, files in os.walk(input_dir, followlinks=True):
+    relative_dir = os.path.relpath(root, input_dir)
+    for file_name in files:
+      if not file_name.lower().endswith('.xml'):
+        continue

[cjhopman, 2013/04/26 20:57:31]

You could use build_utils.FindInDirectory() here. Something like:
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))
..build_utils.CopyFile(input_file, output_path)

[Kibeom Kim (inactive), 2013/04/27 00:05:07]

Done. Much shorter thanks!

+      input_filename = os.path.join(input_dir, relative_dir, file_name)
+      output_filename = os.path.join(output_dir, relative_dir, file_name)
+
+      build_utils.MakeDirectory(os.path.dirname(input_filename))

[cjhopman, 2013/04/26 20:57:31]

I don't think you need to make the input directory.

[Kibeom Kim (inactive), 2013/04/27 00:05:07]

Done.

+      build_utils.MakeDirectory(os.path.dirname(output_filename))
+      build_utils.CopyFile(input_filename, output_filename)
+
+
+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='dest directory to be copied.')
+
+  (options, args) = parser.parse_args()

[cjhopman, 2013/04/26 20:57:31]

don't need parentheses, just "options, args"

[Kibeom Kim (inactive), 2013/04/27 00:05:07]

Done.

+
+  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):
+  """Copy resource files and add -v17 to the sub directory names.

[cjhopman, 2013/04/26 20:57:31]

I'd prefer a file-level docstring (or have both).

[Kibeom Kim (inactive), 2013/04/27 00:05:07]

Done.

+  """
+  options = ParseArgs()
+
+  res_sub_dir_names = os.walk(options.res_dir).next()[1]
+  build_utils.MakeDirectory(options.res_v17_dir)
+
+  for res_sub_dir_name in res_sub_dir_names:
+    dir_pieces = res_sub_dir_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 recursively.
+    copy_resources_in_dir(os.path.join(options.res_dir,
+                                         res_sub_dir_name),
+                          os.path.join(options.res_v17_dir,
+                                       res_sub_dir_name + '-v17'))
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))
+