Change recipes to use bot_update

infra/bots/recipe_modules/core/api.py

 # Copyright 2014 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.
 
 
 # pylint: disable=W0201
 
 
 import json
 import os
@@ skipping 90 matching lines @@
       self.update_repo(self.m.vars.checkout_root, chromium)
 
     if self.m.vars.need_pdfium_checkout:
       pdfium = gclient_cfg.solutions.add()
       pdfium.name = 'pdfium'
       pdfium.managed = False
       pdfium.url = 'https://pdfium.googlesource.com/pdfium.git'
       pdfium.revision = 'origin/master'
       self.update_repo(self.m.vars.checkout_root, pdfium)
 
-    # Run 'gclient sync'.
+    # Run bot_update.
     gclient_cfg.got_revision_mapping['skia'] = 'got_revision'
     checkout_kwargs = {}
     checkout_kwargs['env'] = self.m.vars.default_env
 
-    # api.gclient.revert() assumes things about the layout of the code, so it
-    # fails for us. Run an appropriate revert sequence for trybots instead.
-    gclient_file = self.m.vars.checkout_root.join('.gclient')
-    if (self.m.tryserver.is_tryserver and
-        self.m.path.exists(gclient_file)):  # pragma: no cover
-      # These steps taken from:
-      # https://chromium.googlesource.com/chromium/tools/build/+/
-      #    81a696760ab7c25f6606c54fc781b90b8af9fdd2/scripts/slave/
-      #    gclient_safe_revert.py
-      if self.m.path.exists(entries_file):
-        self.m.gclient('recurse', [
-            'recurse', '-i', 'sh', '-c',
-            'if [ -e .git ]; then git remote update; fi'])
-      self.m.gclient(
-          'revert',
-          ['revert', '-v', '-v', '-v', '--nohooks', '--upstream'],
-          cwd=self.m.vars.checkout_root)
-
-    update_step = self.m.gclient.checkout(gclient_config=gclient_cfg,
-                                          cwd=self.m.vars.checkout_root,
-                                          revert=False,
-                                          **checkout_kwargs)
+    update_step = self.m.bot_update.ensure_checkout(
+        gclient_config=gclient_cfg,
+        cwd=self.m.vars.checkout_root,
+        **checkout_kwargs)
 
     self.m.vars.got_revision = (
         update_step.presentation.properties['got_revision'])
-    self.m.tryserver.maybe_apply_issue()
-    if self.m.properties.get('patch_storage') == 'gerrit':
-      self.m.bot_update.apply_gerrit_ref(
-          root=str(self.m.vars.checkout_root.join('skia')))
 
     if self.m.vars.need_chromium_checkout:
       self.m.gclient.runhooks(cwd=self.m.vars.checkout_root,
                               env=self.m.vars.gclient_env)