git cl refactoring: "hide" non-public functions.

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 and Gerrit."""
 
 from __future__ import print_function
@@ skipping 4259 matching lines @@
     print('It will show up on %s in ~1 min, once it gets a Cr-Commit-Position '
           'footer.' % branch)
 
   hook = POSTUPSTREAM_HOOK_PATTERN % cmd
   if os.path.isfile(hook):
     RunCommand([hook, merge_base], error_ok=True)
 
   return 1 if killed else 0
 
 
-def WaitForRealCommit(remote, pushed_commit, local_base_ref, real_ref):
+def _WaitForRealCommit(remote, pushed_commit, local_base_ref, real_ref):
   print()
   print('Waiting for commit to be landed on %s...' % real_ref)
   print('(If you are impatient, you may Ctrl-C once without harm)')
   target_tree = RunGit(['rev-parse', '%s:' % pushed_commit]).strip()
   current_rev = RunGit(['rev-parse', local_base_ref]).strip()
   mirror = settings.GetGitMirror(remote)
 
   loop = 0
   while True:
     sys.stdout.write('fetching (%d)...        \r' % loop)
     sys.stdout.flush()
     loop += 1
 
     if mirror:
       mirror.populate()
     RunGit(['retry', 'fetch', remote, real_ref], stderr=subprocess2.VOID)
     to_rev = RunGit(['rev-parse', 'FETCH_HEAD']).strip()
     commits = RunGit(['rev-list', '%s..%s' % (current_rev, to_rev)])
     for commit in commits.splitlines():
       if RunGit(['rev-parse', '%s:' % commit]).strip() == target_tree:
         print('Found commit on %s' % real_ref)
         return commit
 
     current_rev = to_rev
 
 
-def PushToGitPending(remote, pending_ref, upstream_ref):
+def _PushToGitPending(remote, pending_ref, upstream_ref):
   """Fetches pending_ref, cherry-picks current HEAD on top of it, pushes.
 
   Returns:
     (retcode of last operation, output log of last operation).
   """
   assert pending_ref.startswith('refs/'), pending_ref
   local_pending_ref = 'refs/git-cl/' + pending_ref[len('refs/'):]
   cherry = RunGit(['rev-parse', 'HEAD']).strip()
   code = 0
   out = ''
@@ skipping 956 matching lines @@
 if __name__ == '__main__':
   # These affect sys.stdout so do it outside of main() to simplify mocks in
   # unit testing.
   fix_encoding.fix_encoding()
   setup_color.init()
   try:
     sys.exit(main(sys.argv[1:]))
   except KeyboardInterrupt:
     sys.stderr.write('interrupted\n')
     sys.exit(1)