Reland of Propagate is_official_build to version script.

build/util/version.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 """
 version.py -- Chromium version string substitution utility.
 """
 
 import argparse
 import os
 import sys
 
 
 def fetch_values_from_file(values_dict, file_name):
   """
   Fetches KEYWORD=VALUE settings from the specified file.
 
   Everything to the left of the first '=' is the keyword,
   everything to the right is the value.  No stripping of
   white space, so beware.
 
   The file must exist, otherwise you get the Python exception from open().
   """
   for line in open(file_name, 'r').readlines():
     key, val = line.rstrip('\r\n').split('=', 1)
     values_dict[key] = val
 
 
-def fetch_values(file_list):
+def fetch_values(file_list, is_official_build=None):
   """
   Returns a dictionary of values to be used for substitution, populating
   the dictionary with KEYWORD=VALUE settings from the files in 'file_list'.
 
   Explicitly adds the following value from internal calculations:
 
     OFFICIAL_BUILD
   """
   CHROME_BUILD_TYPE = os.environ.get('CHROME_BUILD_TYPE')
-  if CHROME_BUILD_TYPE == '_official':
+  if CHROME_BUILD_TYPE == '_official' or is_official_build:
     official_build = '1'
   else:
     official_build = '0'
 
   values = dict(
     OFFICIAL_BUILD = official_build,
   )
 
   for file_name in file_list:
     fetch_values_from_file(values, file_name)
@@ skipping 55 matching lines @@
   parser.add_argument('-i', '--input', default=None,
                       help='Read strings to substitute from FILE.')
   parser.add_argument('-o', '--output', default=None,
                       help='Write substituted strings to FILE.')
   parser.add_argument('-t', '--template', default=None,
                       help='Use TEMPLATE as the strings to substitute.')
   parser.add_argument('-e', '--eval', action='append', default=[],
                       help='Evaluate VAL after reading variables. Can be used '
                            'to synthesize variables. e.g. -e \'PATCH_HI=int('
                            'PATCH)/256.')
+  parser.add_argument('--official', action='store_true',
+                      help='Whether the current build should be an official '
+                           'build, used in addition to the environment '
+                           'variable.')
   parser.add_argument('args', nargs=argparse.REMAINDER,
                       help='For compatibility: INPUT and OUTPUT can be '
                            'passed as positional arguments.')
   options = parser.parse_args()
 
   evals = {}
   for expression in options.eval:
     try:
       evals.update(dict([expression.split('=', 1)]))
     except ValueError:
       parser.error('-e requires VAR=VAL')
 
   # Compatibility with old versions that considered the first two positional
   # arguments shorthands for --input and --output.
   while len(options.args) and (options.input is None or \
                                options.output is None):
     if options.input is None:
       options.input = options.args.pop(0)
     elif options.output is None:
       options.output = options.args.pop(0)
   if options.args:
     parser.error('Unexpected arguments: %r' % options.args)
 
-  values = fetch_values(options.file)
+  values = fetch_values(options.file, options.official)
   for key, val in evals.iteritems():
     values[key] = str(eval(val, globals(), values))
 
   if options.template is not None:
     contents = subst_template(options.template, values)
   elif options.input:
     contents = subst_file(options.input, values)
   else:
     # Generate a default set of version information.
     contents = """MAJOR=%(MAJOR)s
 MINOR=%(MINOR)s
 BUILD=%(BUILD)s
 PATCH=%(PATCH)s
 LASTCHANGE=%(LASTCHANGE)s
 OFFICIAL_BUILD=%(OFFICIAL_BUILD)s
 """ % values
 
   if options.output is not None:
     write_if_changed(options.output, contents)
   else:
     print contents
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())