Teach push script to commit with roll account.

tools/push-to-trunk/common_includes.py

 #!/usr/bin/env python
 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
@@ skipping 387 matching lines @@
   def RemoteBranch(self, name):
     if name in ["candidates", "master"]:
       return "origin/%s" % name
     return "branch-heads/%s" % name
 
   def Tag(self, tag, remote, message):
     # Wait for the commit to appear. Assumes unique commit message titles (this
     # is the case for all automated merge and push commits - also no title is
     # the prefix of another title).
     commit = None
-    for wait_interval in [3, 7, 15, 35]:
+    for wait_interval in [3, 7, 15, 35, 35]:
       self.step.Git("fetch")
       commit = self.step.GitLog(n=1, format="%H", grep=message, branch=remote)
       if commit:
         break
       print("The commit has not replicated to git. Waiting for %s seconds." %
             wait_interval)
       self.step._side_effect_handler.Sleep(wait_interval)
     else:
       self.step.Die("Couldn't determine commit for setting the tag. Maybe the "
                     "git updater is lagging behind?")
 
     self.step.Git("tag %s %s" % (tag, commit))
     self.step.Git("push origin %s" % tag)
 
 
 class GitReadSvnWriteInterface(GitTagsOnlyMixin, GitSvnInterface):
   pass
 
 
+class GitInterface(GitTagsOnlyMixin):
+  def Fetch(self):
+    self.step.Git("fetch")
+
+  def GitSvn(self, hsh, branch=""):
+    return ""
+
+  def SvnGit(self, rev, branch=""):
+    raise NotImplementedError()
+
+  def Land(self):
+    self.step.Git("push origin")
+
+  def CLLand(self):
+    self.step.GitCLLand()
+
+
 VC_INTERFACES = {
   "git_svn": GitSvnInterface,
   "git_read_svn_write": GitReadSvnWriteInterface,
+  "git": GitInterface,
 }
 
 
 class Step(GitRecipesMixin):
   def __init__(self, text, number, config, state, options, handler):
     self._text = text
     self._number = number
     self._config = config
     self._state = state
     self._options = options
@@ skipping 443 matching lines @@
     for (number, step_class) in enumerate(step_classes):
       steps.append(MakeStep(step_class, number, self._state, self._config,
                             options, self._side_effect_handler))
     for step in steps[options.step:]:
       if step.Run():
         return 0
     return 0
 
   def Run(self, args=None):
     return self.RunSteps(self._Steps(), args)