chrome/tools/build/appid.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 """
   7 appid.py -- Chromium appid header file generation utility.
   8 """
   9
  10 import optparse
  11 import sys
  12
  13 GENERATED_APPID_INCLUDE_FILE_CONTENTS = """
  14 // This file is automatically generated by appid.py.
  15 // It contains the Google Update Appid used for this build. Note that
  16 // the Appid will be empty for non Google Chrome builds.
  17 namespace google_update {
  18 const wchar_t kChromeGuid[] = L"%s";
  19 }
  20 """
  21
  22 def GenerateAppIdHeader(opts):
  23   contents = GENERATED_APPID_INCLUDE_FILE_CONTENTS % opts.appid
  24
  25   try:
  26     ofp = open(opts.output_file, 'r')
  27   except EnvironmentError:
  28     current_contents = None
  29   else:
  30     current_contents = ofp.read()
  31
  32   if contents != current_contents:
  33     open(opts.output_file, 'w').write(contents)
  34
  35 def main():
  36   parser = optparse.OptionParser()
  37   parser.add_option('-a', '--appid',
  38                     help='The Google Update App Id of the Chrome being built.')
  39   parser.add_option('-o', '--output_file',
  40                     help='The path to the generated output header file')
  41
  42   (opts, args) = parser.parse_args()
  43
  44   if opts.appid is None or not opts.output_file:
  45     parser.print_help()
  46     return 1
  47
  48   # Log a trace in the build output when we run.
  49   print "Generating appid header... ",
  50   GenerateAppIdHeader(opts)
  51
  52   print "Done."
  53
  54
  55 if __name__ == '__main__':
  56   sys.exit(main())