Add bot_update_lite into recipes

recipe_modules/bot_update/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.
 
 
 """Recipe module to ensure a checkout is consistant on a bot."""
 
 from recipe_engine import recipe_api
 
 
 # This is just for testing, to indicate if a master is using a Git scheduler
 # or not.
 SVN_MASTERS = (
     'experimental.svn',
 )
 
 
 class BotUpdateApi(recipe_api.RecipeApi):
 
   def __init__(self, mastername, buildername, slavename, issue, patchset,
                patch_url, repository, gerrit_ref, rietveld, revision,
                parent_got_revision, deps_revision_overrides, fail_patch,
-               *args, **kwargs):
+               lite, *args, **kwargs):
     self._mastername = mastername
     self._buildername = buildername
     self._slavename = slavename
     self._issue = issue
     self._patchset = patchset
     self._patch_url = patch_url
     self._repository = repository
     self._gerrit_ref = gerrit_ref
     self._rietveld = rietveld
     self._revision = revision
     self._parent_got_revision = parent_got_revision
     self._deps_revision_overrides = deps_revision_overrides
     self._fail_patch = fail_patch
+    self._lite = lite
 
     self._last_returned_properties = {}
     super(BotUpdateApi, self).__init__(*args, **kwargs)
 
   def __call__(self, name, cmd, **kwargs):
     """Wrapper for easy calling of bot_update."""
     assert isinstance(cmd, (list, tuple))
     bot_update_path = self.resource('bot_update.py')
+    # TODO(hinoka): This should eventually be default.
+    if self._lite:
+      bot_update_path = self.resource('bot_update_lite.py')
     kwargs.setdefault('infra_step', True)
     kwargs.setdefault('env', {})
     kwargs['env'].setdefault('PATH', '%(PATH)s')
     kwargs['env']['PATH'] = self.m.path.pathsep.join([
         kwargs['env']['PATH'], str(self._module.PACKAGE_REPO_ROOT)])
     return self.m.python(name, bot_update_path, cmd, **kwargs)
 
   @property
   def last_returned_properties(self):
       return self._last_returned_properties
@@ skipping 71 matching lines @@
     else:
       email_file = key_file = None
 
     # Allow patch_project's revision if necessary.
     # This is important for projects which are checked out as DEPS of the
     # gclient solution.
     self.m.gclient.set_patch_project_revision(
         self.m.properties.get('patch_project'), cfg)
 
     rev_map = cfg.got_revision_mapping.as_jsonish()
+    flags = []
 
-    flags = [
+    if not self._lite:

[hinoka, 2016/05/05 20:36:48]

This is ordered first on purpose, to avoid a no-op change that causes 10000000
different recipe expectations to change.

         # 1. Do we want to run? (master/builder/slave).
-        ['--master', master],
-        ['--builder', builder],
-        ['--slave', slave],
+        flags.extend([
+            ['--master', master],
+            ['--builder', builder],
+            ['--slave', slave],
+        ])
 
+    flags.extend([
         # 2. What do we want to check out (spec/root/rev/rev_map).
         ['--spec', self.m.gclient.config_to_pythonish(cfg)],
         ['--root', root],
         ['--revision_mapping_file', self.m.json.input(rev_map)],
         ['--git-cache-dir', cfg.cache_dir],
 
         # 3. How to find the patch, if any (issue/patchset/patch_url).
         ['--issue', issue],
         ['--patchset', patchset],
         ['--patch_url', patch_url],
         ['--rietveld_server', rietveld or self._rietveld],
         ['--gerrit_repo', gerrit_repo],
         ['--gerrit_ref', gerrit_ref],
         ['--apply_issue_email_file', email_file],
         ['--apply_issue_key_file', key_file],
 
         # 4. Hookups to JSON output back into recipes.
-        ['--output_json', self.m.json.output()],]
+        ['--output_json', self.m.json.output()],])
+
+
 
 
     # Collect all fixed revisions to simulate them in the json output.
     # Fixed revision are the explicit input revisions of bot_update.py, i.e.
     # every command line parameter "--revision name@value".
     fixed_revisions = {}
 
     revisions = {}
     for solution in cfg.solutions:
       if solution.revision:
@@ skipping 18 matching lines @@
     # Add extra fetch refspecs.
     for ref in refs:
       flags.append(['--refs', ref])
 
     # Filter out flags that are None.
     cmd = [item for flag_set in flags
            for item in flag_set if flag_set[1] is not None]
 
     if clobber:
       cmd.append('--clobber')
-    if force:
+    if force and not self._lite:
       cmd.append('--force')
     if no_shallow:
       cmd.append('--no_shallow')
     if output_manifest:
       cmd.append('--output_manifest')
     if with_branch_heads or cfg.with_branch_heads:
       cmd.append('--with_branch_heads')
     if gerrit_no_reset:
       cmd.append('--gerrit_no_reset')
 
@@ skipping 64 matching lines @@
 
       # bot_update actually just sets root to be the folder name of the
       # first solution.
       if step_result.json.output['did_run']:
         co_root = step_result.json.output['root']
         cwd = kwargs.get('cwd', self.m.path['slave_build'])
         if 'checkout' not in self.m.path:
           self.m.path['checkout'] = cwd.join(*co_root.split(self.m.path.sep))
 
     return step_result