Remove Skia's forked buildbot code

slave/skia_slave_scripts/apply_patch.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.
-
-
-""" Apply a diff to patch a Skia checkout. """
-
-
-from ast import literal_eval
-from build_step import BuildStep, BuildStepFailure
-from py.utils import shell_utils
-from py.utils.git_utils import GIT
-import os
-import shutil
-import sys
-import tempfile
-import urllib
-import urllib2
-
-
-if os.name == 'nt':
-  SVN = 'svn.bat'
-else:
-  SVN = 'svn'
-
-
-class ApplyPatch(BuildStep):
-  def _Run(self):
-    if self._args['patch'] == 'None':
-      raise BuildStepFailure('No patch given!')
-
-    # patch is a tuple of the form (int, str), where patch[0] is the "level" of
-    # the patch and patch[1] is the URL of the diff.
-    patch_level, encoded_patch_url = literal_eval(self._args['patch'].decode())
-    patch_url = urllib.quote(encoded_patch_url, safe="%/:=&?~+!$,;'@()*[]")
-    print 'Patch level: %d' % patch_level
-    print 'Diff file URL:'
-    print patch_url
-
-    # Write the patch file into a temporary directory. Unfortunately, temporary
-    # files created by the tempfile module don't behave properly on Windows, so
-    # we create a temporary directory and write the file inside it.
-    temp_dir = tempfile.mkdtemp()
-    try:
-      patch_file_name = os.path.join(temp_dir, 'skiabot_patch')
-      patch_file = open(patch_file_name, 'wb')
-      try:
-        if 'svn' in patch_url:
-          # TODO(borenet): Create an svn_utils module and use it instead.  It
-          # would be nice to find a way to share
-          # https://skia.googlesource.com/skia/+/master/tools/svn.py
-          patch_contents = shell_utils.run([SVN, 'cat', patch_url], echo=False)
-        else:
-          patch_contents = urllib2.urlopen(patch_url).read()
-        if not patch_contents:
-          raise Exception('Got an empty patch!')
-        patch_file.write(patch_contents)
-      finally:
-        patch_file.close()
-      print 'Saved patch to %s' % patch_file.name
-
-      def get_patch_cmd(level, patch_filename):
-        return [GIT, 'apply', '-p%d' % level, '-v', '--ignore-space-change',
-                '--ignore-whitespace', patch_filename]
-
-      try:
-        # First, check that the patch can be applied at the given level.
-        shell_utils.run(get_patch_cmd(patch_level, patch_file.name) +
-                        ['--check'])
-      except shell_utils.CommandFailedException as e:
-        # If the patch can't be applied at the requested level, try 0 or 1,
-        # depending on what we just tried.
-        print e
-        patch_level = (patch_level + 1) % 2
-        print 'Trying patch level %d instead...' % patch_level
-      shell_utils.run(get_patch_cmd(patch_level, patch_file.name))
-
-    finally:
-      shutil.rmtree(temp_dir)
-
-
-if '__main__' == __name__:
-  sys.exit(BuildStep.RunBuildStep(ApplyPatch))