Add build steps to functional testing annotated steps script

tools/bots/functional_testing.py

 #!/usr/bin/python
 
 # Copyright (c) 2014, 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 functional testing master and slaves
 """
 
+import os
+import re
+import shutil
+import sys
+
+import bot
+import bot_utils
+
+FT_BUILDER = r'ft-slave-(linux|mac)'
+
+EDITOR_LOCATION='/home/chrome-bot/Desktop'
+
+def SrcConfig(name, is_buildbot):
+  """Returns info for the current buildbot based on the name of the builder.
+
+  - mode: always "release"
+  - system: always "linux" or "mac"
+  """
+  pattern = re.match(FT_BUILDER, name)
+  if not pattern:
+    return None
+  return bot.BuildInfo('none', 'none', 'release', pattern.group(1))
+
+def Run(args):
+  print "Running: %s" % ' '.join(args)
+  sys.stdout.flush()
+  bot.RunProcess(args)
+
+def FTSteps(config):
+  revision = int(os.environ['BUILDBOT_GOT_REVISION'])
+  bot_name, _ = bot.GetBotName()
+  print bot_name
+  channel = bot_utils.GetChannelFromName(bot_name)
+  namer = bot_utils.GCSNamer(channel=channel)
+  system = config.system
+  if system == 'mac':
+    system = 'macos'
+  editor_path = namer.editor_zipfilepath(revision, system, 'x64')
+  gsutils = bot_utils.GSUtil()
+  local_path = os.path.join(EDITOR_LOCATION, 'editor.zip')
+  if os.path.exists(local_path):
+    os.remove(local_path)
+  local_extracted = os.path.join(EDITOR_LOCATION, 'dart')
+  shutil.rmtree(local_extracted, ignore_errors=True)
+  gsutils.execute(['cp', editor_path, local_path])
+  Run(['unzip', local_path, '-d', EDITOR_LOCATION])
+
 if __name__ == '__main__':
-  print "Functional testing placeholder"
+    bot.RunBot(SrcConfig, FTSteps)