Make bot_update on win more resilient

gclient.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Meta checkout dependency manager for Git."""
 # Files
 #   .gclient      : Current client configuration, written by 'config' command.
 #                   Format is a Python script defining 'solutions', a list whose
 #                   entries each are maps binding the strings "name" and "url"
@@ skipping 1580 matching lines @@
   def target_os(self):
     return self._enforced_os
 
 
 #### gclient commands.
 
 
 def CMDcleanup(parser, args):
   """DEPRECATED: SVN-only. Cleaned up all working copies.
 
   This is a no-op in Git.

[agable, 2016/10/28 16:55:34]

Update this docstring. No longer deprecated, no longer a no-op in Git.

   """
   parser.add_option('--deps', dest='deps_os', metavar='OS_LIST',
                     help='override deps for the specified (comma-separated) '
                          'platform(s); \'all\' will process all deps_os '
                          'references')
+  parser.add_option('--break_repo_locks', action='store_true',

[agable, 2016/10/28 16:55:34]

Honestly I wouldn't even bother with this. This will now be the sole purpose of
the 'cleanup' command, so there's no need for the flag.

[katthomas, 2016/10/28 23:40:29]

Done.

+                    help='GIT ONLY - Forcibly remove repo locks (e.g. '
+                      'index.lock). This should only be used if you know for '
+                      'certain that this invocation of gclient is the only '
+                      'thing operating on the git repos (e.g. on a bot).')
   (options, args) = parser.parse_args(args)
   client = GClient.LoadCurrentConfig(options)
   if not client:
     raise gclient_utils.Error('client not configured; see \'gclient config\'')
   if options.verbose:
     client.PrintLocationAndContents()
   return client.RunOnDeps('cleanup', args)
 
 
 @subcommand.usage('[command] [args ...]')
@@ skipping 563 matching lines @@
 
 
 if '__main__' == __name__:
   try:
     sys.exit(main(sys.argv[1:]))
   except KeyboardInterrupt:
     sys.stderr.write('interrupted\n')
     sys.exit(1)
 
 # vim: ts=2:sw=2:tw=80:et: