Add --output option to Swarming client and pass it through to the bot

appengine/swarming/handlers_bot.py

 # Copyright 2015 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 """Internal bot API handlers."""
 
 import base64
 import json
 import logging
 import re
@@ skipping 532 matching lines @@
         'extra_args': request.properties.extra_args,
         'grace_period': request.properties.grace_period_secs,
         'hard_timeout': request.properties.execution_timeout_secs,
         'host': utils.get_versioned_hosturl(),
         'io_timeout': request.properties.io_timeout_secs,
         'isolated': {
           'input': request.properties.inputs_ref.isolated,
           'namespace': request.properties.inputs_ref.namespace,
           'server': request.properties.inputs_ref.isolatedserver,
         } if request.properties.inputs_ref else None,
+        'outputs': request.properties.outputs,
         'service_account': request.service_account,
         'task_id': task_pack.pack_run_result_key(run_result_key),
       },
     }
     self.send_response(utils.to_json_encodable(out))
 
   def _cmd_sleep(self, sleep_streak, quarantined):
     out = {
       'cmd': 'sleep',
       'duration': task_scheduler.exponential_backoff(sleep_streak),
@@ skipping 289 matching lines @@
       ('/swarming/api/v1/bot/poll', BotPollHandler),
       ('/swarming/api/v1/bot/server_ping', ServerPingHandler),
       ('/swarming/api/v1/bot/task_update', BotTaskUpdateHandler),
       ('/swarming/api/v1/bot/task_update/<task_id:[a-f0-9]+>',
           BotTaskUpdateHandler),
       ('/swarming/api/v1/bot/task_error', BotTaskErrorHandler),
       ('/swarming/api/v1/bot/task_error/<task_id:[a-f0-9]+>',
           BotTaskErrorHandler),
   ]
   return [webapp2.Route(*i) for i in routes]