build/android/gyp/generate_resource_rewriter.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright (c) 2015 The Chromium Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style license that can be
   5 # found in the LICENSE file.
   6
   7 """Generate ResourceRewriter.java which overwrites the given package's
   8    resource id.
   9 """
  10
  11 import argparse
  12 import os
  13 import sys
  14
  15 from util import build_utils
  16
  17 # Import jinja2 from third_party/jinja2
  18 sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__),
  19                                              '..',
  20                                              '..',
  21                                              '..',
  22                                              'third_party')))
  23 import jinja2
  24
  25 RESOURCE_REWRITER="""/* AUTO-GENERATED FILE.  DO NOT MODIFY. */
  26
  27 package {{ package }};
  28 /**
  29  * Helper class used to fix up resource ids.
  30  */
  31 class ResourceRewriter {
  32     /**
  33      * Rewrite the R 'constants' for the WebView.
  34      */
  35     public static void rewriteRValues(final int packageId) {
  36         {% for res_package in res_packages %}
  37         {{ res_package }}.R.onResourcesLoaded(packageId);
  38         {% endfor %}
  39     }
  40 }
  41 """
  42
  43 def ParseArgs(args):
  44   """Parses command line options.
  45
  46   Returns:
  47     An Namespace from argparse.parse_args()
  48   """
  49   parser = argparse.ArgumentParser(prog='generate_resource_rewriter')
  50
  51   parser.add_argument('--package-name',
  52                       required=True,
  53                       help='The package name of ResourceRewriter.')
  54   parser.add_argument('--dep-packages',
  55                       required=True,
  56                       help='A list of packages whose resource id will be'
  57                            'overwritten in ResourceRewriter.')
  58   parser.add_argument('--output-dir',
  59                       required=True,
  60                       help='A output directory of generated'
  61                            ' ResourceRewriter.java')
  62
  63   return parser.parse_args(args)
  64
  65
  66 def CreateResourceRewriter(package, res_packages, output_dir):
  67   output_dir = os.path.join(output_dir, *package.split('.'))
  68   build_utils.MakeDirectory(output_dir)
  69   java_path = os.path.join(output_dir, 'ResourceRewriter.java')
  70   template = jinja2.Template(RESOURCE_REWRITER,
  71                              trim_blocks=True,
  72                              lstrip_blocks=True)
  73   output = template.render(package=package, res_packages=res_packages)
  74   with open(java_path, 'w') as f:
  75     f.write(output)
  76
  77
  78 def main():
  79   options = ParseArgs(sys.argv[1:])
  80
  81   CreateResourceRewriter(
  82       options.package_name,
  83       build_utils.ParseGypList(options.dep_packages),
  84       options.output_dir)
  85   return 0
  86
  87 if __name__ == '__main__':
  88   sys.exit(main())
  89