package_resources.py 文件源码

def main(args):
  args = build_utils.ExpandFileArgs(args)
  options = _ParseArgs(args)

  package_command = _ConstructMostAaptArgs(options)

  output_paths = [options.apk_path]

  if options.create_density_splits:
    for _, dst_path in _GenerateDensitySplitPaths(options.apk_path):
      output_paths.append(dst_path)
  output_paths.extend(
      _GenerateLanguageSplitOutputPaths(options.apk_path,
                                        options.language_splits))

  input_paths = [options.android_manifest] + options.resource_zips

  input_strings = [options.exclude_xxxhdpi] + options.xxxhdpi_whitelist
  input_strings.extend(package_command)
  if options.png_to_webp:
    # This is necessary to ensure conversion if the option is toggled.
    input_strings.extend("png_to_webp")

  # The md5_check.py doesn't count file path in md5 intentionally,
  # in order to repackage resources when assets' name changed, we need
  # to put assets into input_strings, as we know the assets path isn't
  # changed among each build if there is no asset change.
  if options.asset_dir and os.path.exists(options.asset_dir):
    asset_paths = []
    for root, _, filenames in os.walk(options.asset_dir):
      asset_paths.extend(os.path.join(root, f) for f in filenames)
    input_paths.extend(asset_paths)
    input_strings.extend(sorted(asset_paths))

  build_utils.CallAndWriteDepfileIfStale(
      lambda: _OnStaleMd5(package_command, options),
      options,
      input_paths=input_paths,
      input_strings=input_strings,
      output_paths=output_paths)