Add annotated steps for dart_services

tools/bots/dart_services.py

+#!/usr/bin/python
+
+# Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+"""
+Buildbot steps for stress testing analysis engine
+"""
+import os
+import shutil
+import sys
+import bot
+import bot_utils
+
+utils = bot_utils.GetUtils()
+
+def ServicesConfig(name, is_buildbot):
+  """Returns info for the current buildbot.
+  We only run this bot on linux, so all of this is just hard coded.
+  """
+  return bot.BuildInfo('none', 'none', 'release', 'linux')
+
+def Run(args):
+  print "Running: %s" % ' '.join(args)
+  sys.stdout.flush()
+  bot.RunProcess(args)
+
+def ServicesSteps(build_info):
+  build_root = utils.GetBuildRoot('linux')
+  sdk_bin = utils.GetBuildSdkBin('linux', mode='release', arch='ia32')
+  dart_services = os.path.join('third_party', 'dart-services')
+  dart_services_copy = os.path.join(build_root, 'dart-services')
+
+  with bot.BuildStep('Create copy of dart_services'):
+    print 'Removing existing copy of dart_services'
+    shutil.rmtree(dart_services_copy, ignore_errors=True)
+    args = ['cp', '-R', dart_services, dart_services_copy]
+    Run(args)
+
+  with bot.BuildStep('Fixing pubspec file'):
+    pubspec = os.path.join(dart_services_copy, 'pubspec.yaml')
+    # TODO(lukechurch): Actually provide the name of the alternative pubspec
+    testing_pubspec = os.path.join(dart_services_copy, 'pubspec.foobar.yaml')
+    print 'Fixing pubspec up for stress testing'
+    # TODO(lukechurch): change to do the mv of the testing pubspec
+    Run(['ls', pubspec])
+
+  with bot.BuildStep('Run pub'):
+    print 'Print running pub'
+    pub = os.path.join(sdk_bin, 'pub')
+    with utils.ChangedWorkingDirectory(dart_services_copy):
+      args = [pub, 'get']
+
+  with bot.BuildStep('Stress testing'):
+    # Consider doing something more useful here.
+    args = ['ls', 'third_party']
+    Run(args)
+
+
+if __name__ == '__main__':
+  bot.RunBot(ServicesConfig, ServicesSteps)
+