Convert gclient to use subcommand.py

git_cl.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.
 
 # Copyright (C) 2008 Evan Martin <martine@danga.com>
 
 """A git-command for integrating reviews on Rietveld."""
 
 from distutils.version import LooseVersion
@@ skipping 1059 matching lines @@
     - Red     not sent for review or broken
     - Cyan    was committed, branch can be deleted
 
   Also see 'git cl comments'.
   """
   parser.add_option('--field',
                     help='print only specific field (desc|id|patch|url)')
   parser.add_option('-f', '--fast', action='store_true',
                     help='Do not retrieve review status')
   (options, args) = parser.parse_args(args)
+  if args:
+    parser.error('Unsupported args: %s' % args)
 
   if options.field:
     cl = Changelist()
     if options.field.startswith('desc'):
       print cl.GetDescription()
     elif options.field == 'id':
       issueid = cl.GetIssue()
       if issueid:
         print issueid
     elif options.field == 'patch':
@@ skipping 86 matching lines @@
   if not cl.GetIssue():
     print 'no issue assigned.'
     return 0
   print cl.GetBranch()
   print 'Issue number: %s (%s)' % (cl.GetIssue(), cl.GetIssueURL())
   print 'Issue description:'
   print cl.GetDescription(pretty=True)
   return 0
 
 
+def colorize_CMDstatus_doc():
+  """To be called once in main() to add colors to git cl status help."""
+  colors = [i for i in dir(Fore) if i[0].isupper()]
+
+  def colorize_line(line):
+    for color in colors:
+      if color in line.upper():
+        # Extract whitespaces first and the leading '-'.
+        indent = len(line) - len(line.lstrip(' ')) + 1
+        return line[:indent] + getattr(Fore, color) + line[indent:] + Fore.RESET
+    return line
+
+  lines = CMDstatus.__doc__.splitlines()
+  CMDstatus.__doc__ = '\n'.join(colorize_line(l) for l in lines)
+
+
 @subcommand.usage('[issue_number]')
 def CMDissue(parser, args):
   """Sets or displays the current code review issue number.
 
   Pass issue number 0 to clear the current issue.
   """
   _, args = parser.parse_args(args)
 
   cl = Changelist()
   if len(args) > 0:
@@ skipping 953 matching lines @@
     self.add_option(
         '-v', '--verbose', action='count', default=0,
         help='Use 2 times for more debugging info')
 
   def parse_args(self, args=None, values=None):
     options, args = optparse.OptionParser.parse_args(self, args, values)
     levels = [logging.WARNING, logging.INFO, logging.DEBUG]
     logging.basicConfig(level=levels[min(options.verbose, len(levels) - 1)])
     return options, args
 
-  def format_description(self, _):
-    """Disables automatic reformatting."""
-    lines = self.description.rstrip().splitlines()
-    lines_fixed = [lines[0]] + [l[2:] if len(l) >= 2 else l for l in lines[1:]]
-    description = ''.join(l + '\n' for l in lines_fixed)
-    return description[0].upper() + description[1:]
-
 
 def main(argv):
   if sys.hexversion < 0x02060000:
     print >> sys.stderr, (
         '\nYour python version %s is unsupported, please upgrade.\n' %
         sys.version.split(' ', 1)[0])
     return 2
 
   # Reload settings.
   global settings
   settings = Settings()
 
+  colorize_CMDstatus_doc()
   dispatcher = subcommand.CommandDispatcher(__name__)
   try:
     return dispatcher.execute(OptionParser(), argv)
   except urllib2.HTTPError, e:
     if e.code != 500:
       raise
     DieWithError(
         ('AppEngine is misbehaving and returned HTTP %d, again. Keep faith '
           'and retry or visit go/isgaeup.\n%s') % (e.code, str(e)))
 
 
 if __name__ == '__main__':
   # These affect sys.stdout so do it outside of main() to simplify mocks in
   # unit testing.
   fix_encoding.fix_encoding()
   colorama.init()
   sys.exit(main(sys.argv[1:]))