Disable version increment and tagging until after the git migration.

tools/push-to-trunk/auto_tag.py

 #!/usr/bin/env python
 # Copyright 2014 the V8 project 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 argparse
 import sys
 
 from common_includes import *
 
 
 class Preparation(Step):
   MESSAGE = "Preparation."
 
   def RunStep(self):
+    # TODO(machenbach): Remove after the git switch.
+    if self.Config("PERSISTFILE_BASENAME") == "/tmp/v8-auto-tag-tempfile":
+      print "This script is disabled until after the v8 git migration."
+      return True
+
     self.CommonPrepare()
     self.PrepareBranch()
     self.GitCheckout("master")
     self.vc.Pull()
 
 
 class GetTags(Step):
   MESSAGE = "Get all V8 tags."
 
   def RunStep(self):
@@ skipping 158 matching lines @@
       GetOldestUntaggedVersion,
       GetLKGRs,
       CalculateTagRevision,
       MakeTag,
       CleanUp,
     ]
 
 
 if __name__ == "__main__":  # pragma: no cover
   sys.exit(AutoTag().Run())