update git-cl for OWNERS file support via .git/hooks/pre-cl-*

git-cl-upload-hook

 #!/usr/bin/python
 # Copyright (c) 2009 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.
 
+import optparse
 import os
 import sys
 from subprocess import Popen, PIPE
 
 # Try locating depot_tools from the user's PATH.
 depot_tools_path = None
 
 # First parse PATH if there's a "depot_tools" inside
 for path in os.environ.get("PATH").split(os.pathsep):
   if not path.endswith("depot_tools") and not path.endswith("depot_tools/"):
@@ skipping 19 matching lines @@
   sys.exit(1)
 
 # Try importing git_cl_hooks from depot_tools.
 try:
   import git_cl_hooks
 except ImportError:
   print "ERROR: Could not import git_cl_hooks from depot_tools in your PATH."
   print "ERROR: Make sure %s is up-to-date and try again." % depot_tools_path
   sys.exit(1)
 
-# Ensure we were called with the necessary number of arguments.
-program_name = os.path.basename(sys.argv[0])
-if len(sys.argv) != 2:
-  print "usage: %s [upstream branch]" % program_name
-  sys.exit(1)
+parser = optparse.OptionParser()
+parser.set_usage('%prog [options] <upstream-branch>')
+parser.add_option('--tbr', action='store_true', default=False,
+                  help='skip checks for reviewers, owners')
+parser.add_option('--host-url', default=None,

[M-A Ruel, 2011/03/11 00:48:41]

Actually, it is safe to get this value from git config since it's always the
reference value.

+                  help='scheme, origin, and port for Rietveld server')
+options, args = parser.parse_args()
+if len(args) != 1:
+    parser.print_help()
+    sys.exit(1)
 
 # Run the hooks library with our arguments.
-exec git_cl_hooks.RunHooks(hook_name=program_name, upstream_branch=sys.argv[1])
+exec git_cl_hooks.RunHooks(hook_name=parser.get_prog_name(),
+                           upstream_branch=args[0],
+                           cmd_line_options=options)