Add swarmbucket_wrapper recipe

infra/bots/recipes/swarmbucket_wrapper.py

Index: infra/bots/recipes/swarmbucket_wrapper.py
diff --git a/infra/bots/recipes/swarmbucket_wrapper.py b/infra/bots/recipes/swarmbucket_wrapper.py
new file mode 100644
index 0000000000000000000000000000000000000000..a594a85250cfe8adaf25e1e76cdfac575f1a8154
--- /dev/null
+++ b/infra/bots/recipes/swarmbucket_wrapper.py
@@ -0,0 +1,111 @@
+# Copyright 2016 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 wrapper used in SwarmBucket.
+
+
+DEPS = [
+  'build/file',
+  'depot_tools/bot_update',
+  'depot_tools/gclient',
+  'recipe_engine/json',
+  'recipe_engine/path',
+  'recipe_engine/properties',
+  'recipe_engine/python',
+  'recipe_engine/step',
+]
+
+
+def checkout_steps(api):

[rmistry, 2016/07/28 17:41:48]

Can we add a bunch of documentation and line breaks in this method to make it
easier to read, right now I cannot tell what the block is doing.

[borenet, 2016/07/28 17:46:00]

Done. Honestly, I'm not sure what most of the options for bot_update do, so I
don't know how to document them.

+  """Run the steps to obtain a checkout of Skia."""
+  workdir = api.path['b'].join('work')
+  if not api.path.exists(workdir):
+    api.file.makedirs('workdir', workdir, infra_step=True)
+  cache_dir = api.path['b'].join('cache')
+  api.gclient.use_mirror = True
+  gclient_cfg = api.gclient.make_config(GIT_MODE=True, CACHE_DIR=cache_dir)
+  soln = gclient_cfg.solutions.add()
+  soln.name = 'skia'
+  soln.url = 'https://skia.googlesource.com/skia.git'
+  soln.revision = api.properties.get('revision', 'origin/master')
+  api.gclient.c = gclient_cfg
+  api.gclient.c.got_revision_mapping['skia'] = 'got_revision'
+  patch = api.properties.get('patch', True)
+  clobber = True if api.properties.get('clobber') else False
+  force = True if api.properties.get('force') else False
+  no_shallow = True if api.properties.get('no_shallow') else False
+  output_manifest = api.properties.get('output_manifest', False)
+  with_branch_heads = api.properties.get('with_branch_heads', False)
+  refs = api.properties.get('refs', [])
+  oauth2 = api.properties.get('oauth2', False)
+  root_solution_revision = api.properties.get('root_solution_revision')
+  suffix = api.properties.get('suffix')
+  gerrit_no_reset = True if api.properties.get('gerrit_no_reset') else False
+  api.bot_update.ensure_checkout(force=force,
+                                 no_shallow=no_shallow,
+                                 patch=patch,
+                                 with_branch_heads=with_branch_heads,
+                                 output_manifest=output_manifest,
+                                 refs=refs, patch_oauth2=oauth2,
+                                 clobber=clobber,
+                                 root_solution_revision=root_solution_revision,
+                                 suffix=suffix,
+                                 gerrit_no_reset=gerrit_no_reset,
+                                 cwd=workdir)
+  got_revision = api.step.active_result.presentation.properties['got_revision']
+  if soln.revision != 'origin/master':  # pragma: no cover
+    assert got_revision == soln.revision
+  return got_revision
+
+
+def forward_to_recipe_in_repo(api):
+  workdir = api.path['b'].join('work')
+  recipes_py = workdir.join('skia', 'infra', 'bots', 'recipes.py')
+  cmd = ['python', recipes_py, 'run',
+         '--workdir', workdir,
+         'swarm_trigger', 'path_config=kitchen']
+  for k, v in api.properties.iteritems():
+    cmd.append('%s=%s' % (k, v))
+  api.step('run recipe', cmd=cmd, allow_subannotations=True)
+
+
+def print_properties(api):
+  """Dump out all properties for debugging purposes."""
+  props = {}
+  for k, v in api.properties.iteritems():
+    props[k] = v
+  api.python.inline(
+      'print properties',
+      '''
+import json
+import sys
+
+with open(sys.argv[1]) as f:
+  content = json.load(f)
+
+print json.dumps(content, indent=2)
+''',
+      args=[api.json.input(props)])
+
+
+def RunSteps(api):
+  api.path.c.base_paths['b'] = ('/', 'b')
+
+  # TODO(borenet): Remove this once SwarmBucket is working.
+  print_properties(api)
+
+  checkout_steps(api)
+  forward_to_recipe_in_repo(api)
+
+
+def GenTests(api):
+  yield (
+      api.test('trigger_recipe') +
+      api.properties(buildername='Some-Builder',
+                     buildnumber=5,
+                     mastername='client.skia.fyi',
+                     slavename='some-slave',
+                     path_config='swarmbucket')
+  )