Roll Chrome into Mojo.

build/get_syzygy_binaries.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.
 
 """A utility script for downloading versioned Syzygy binaries."""
 
 import cStringIO
 import hashlib
 import errno
@@ skipping 244 matching lines @@
     raise RuntimeError('Failed to download "%s".' % url)
   return response.read()
 
 
 def _InstallBinaries(options, deleted={}):
   """Installs Syzygy binaries. This assumes that the output directory has
   already been cleaned, as it will refuse to overwrite existing files."""
   contents = {}
   state = { 'revision': options.revision, 'contents': contents }
   archive_url = _SYZYGY_ARCHIVE_URL % { 'revision': options.revision }
-  for (base, name, subdir, filt) in _RESOURCES:
+  if options.resources:
+    resources = [(resource, resource, '', None)
+                 for resource in options.resources]
+  else:
+    resources = _RESOURCES
+  for (base, name, subdir, filt) in resources:
     # Create the output directory if it doesn't exist.
     fulldir = os.path.join(options.output_dir, subdir)
     if os.path.isfile(fulldir):
       raise Exception('File exists where a directory needs to be created: %s' %
                       fulldir)
     if not os.path.exists(fulldir):
       _LOGGER.debug('Creating directory: %s', fulldir)
       if not options.dry_run:
         os.makedirs(fulldir)
 
@@ skipping 38 matching lines @@
   option_parser.add_option('--output-dir', type='string',
       help='The path where the binaries will be replaced. Existing binaries '
            'will only be overwritten if not up to date.')
   option_parser.add_option('--overwrite', action='store_true', default=False,
       help='If specified then the installation will happily delete and rewrite '
            'the entire output directory, blasting any local changes.')
   option_parser.add_option('--revision', type='string',
       help='The SVN revision or GIT hash associated with the required version.')
   option_parser.add_option('--revision-file', type='string',
       help='A text file containing an SVN revision or GIT hash.')
+  option_parser.add_option('--resource', type='string', action='append',
+      dest='resources', help='A resource to be downloaded.')
   option_parser.add_option('--verbose', dest='log_level', action='store_const',
       default=logging.INFO, const=logging.DEBUG,
       help='Enables verbose logging.')
   option_parser.add_option('--quiet', dest='log_level', action='store_const',
       default=logging.INFO, const=logging.ERROR,
       help='Disables all output except for errors.')
   options, args = option_parser.parse_args()
   if args:
     option_parser.error('Unexpected arguments: %s' % args)
   if not options.output_dir:
@@ skipping 101 matching lines @@
   # Install the new binaries. In a dry-run this will actually download the
   # archives, but it won't write anything to disk.
   state = _InstallBinaries(options, deleted)
 
   # Build and save the state for the directory.
   _SaveState(options.output_dir, state, options.dry_run)
 
 
 if __name__ == '__main__':
   main()