build/android/gyp/main_dex_list.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright 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 import argparse
   8 import os
   9 import sys
  10 import tempfile
  11
  12 from util import build_utils
  13
  14 sys.path.append(os.path.abspath(os.path.join(
  15     os.path.dirname(__file__), os.pardir)))
  16 from pylib import constants
  17
  18
  19 def main():
  20   parser = argparse.ArgumentParser()
  21   parser.add_argument('--android-sdk-tools', required=True,
  22                       help='Android sdk build tools directory.')
  23   parser.add_argument('--main-dex-rules-path', action='append', default=[],
  24                       dest='main_dex_rules_paths',
  25                       help='A file containing a list of proguard rules to use '
  26                            'in determining the class to include in the '
  27                            'main dex.')
  28   parser.add_argument('--main-dex-list-path', required=True,
  29                       help='The main dex list file to generate.')
  30   parser.add_argument('paths', nargs='+',
  31                       help='JARs for which a main dex list should be '
  32                            'generated.')
  33
  34   args = parser.parse_args()
  35
  36   with open(args.main_dex_list_path, 'w') as main_dex_list_file:
  37
  38     shrinked_android_jar = os.path.abspath(
  39         os.path.join(args.android_sdk_tools, 'lib', 'shrinkedAndroid.jar'))
  40     dx_jar = os.path.abspath(
  41         os.path.join(args.android_sdk_tools, 'lib', 'dx.jar'))
  42     paths_arg = ':'.join(args.paths)
  43     rules_file = os.path.abspath(
  44         os.path.join(args.android_sdk_tools, 'mainDexClasses.rules'))
  45
  46     with tempfile.NamedTemporaryFile(suffix='.jar') as temp_jar:
  47       proguard_cmd = [
  48         constants.PROGUARD_SCRIPT_PATH,
  49         '-forceprocessing',
  50         '-dontwarn', '-dontoptimize', '-dontobfuscate', '-dontpreverify',
  51         '-injars', paths_arg,
  52         '-outjars', temp_jar.name,
  53         '-libraryjars', shrinked_android_jar,
  54         '-include', rules_file,
  55       ]
  56       for m in args.main_dex_rules_paths:
  57         proguard_cmd.extend(['-include', m])
  58
  59       main_dex_list = ''
  60       try:
  61         build_utils.CheckOutput(proguard_cmd)
  62
  63         java_cmd = [
  64           'java', '-cp', dx_jar,
  65           'com.android.multidex.MainDexListBuilder',
  66           temp_jar.name, paths_arg
  67         ]
  68         main_dex_list = build_utils.CheckOutput(java_cmd)
  69       except build_utils.CalledProcessError as e:
  70         if 'output jar is empty' in e.output:
  71           pass
  72         elif "input doesn't contain any classes" in e.output:
  73           pass
  74         else:
  75           raise
  76
  77       main_dex_list_file.write(main_dex_list)
  78
  79   return 0
  80
  81
  82 if __name__ == '__main__':
  83   sys.exit(main())
  84