Move patch management functions into their own file, patch.py.

svn_utils.py

 # Copyright (c) 2010 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.
 """Utility functions to call subversion, apply and revert patches."""
 
 import logging
 import os
 
 import find_depot_tools  # pylint: disable=W0611
 import gclient_utils
 import scm
 
 import subprocess2
 
 
 def svn(args, **kwargs):
   """Runs svn and throws an exception if the command failed."""
   return subprocess2.check_call(
       ['svn'] + args + ['--no-auth-cache', '--non-interactive'], **kwargs)
 
 
 def capture_svn(args, **kwargs):
   """Runs svn and throws an exception if the command failed. Returns the output.
   """
   cmd = ['svn'] + args + ['--no-auth-cache', '--non-interactive']
   return subprocess2.check_capture(cmd, **kwargs)
 
 
-def apply_patch(location, patch):
-  """Applies a svn patch, manually applying svn meta data."""
-  # TODO: Do not shell out patch to enable svn cp/mv/ren and friends
-  # TODO: Add binary support
-  # TODO: Reuse some webkit svn-apply stuff?
-  cmd = ['patch', '-p0', '--forward', '--force']
-  subprocess2.check_call(cmd, stdin=patch, cwd=location)
-
-
 def parse_svn_info(output, key):
   """Returns value for key from svn info output.
 
   Case insensitive.
   """
   values = {}
   for line in output.splitlines(False):
     if not line:
       continue
     k, v = line.split(':', 1)
@@ skipping 63 matching lines @@
   credential but the original patch author needs to be assigned authorship
   of the revision.
   """
   svn(['propset', '--revprop', 'svn:author',
        '-r', revision,
        new_author,
        '--username', committer,
        '--password', password,
        url],
       cwd=cwd)