Add decorations to bot names for modifying parts of try sets.

scripts/master/try_job_base_bb8.py

 # Copyright (c) 2011 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.
 
 from twisted.python import log
 from twisted.web import client
 
 from buildbot.schedulers.trysched import TryBase  # pylint: disable=W0611
 from buildbot.schedulers.trysched import BadJobfile  # pylint: disable=W0611
 from twisted.internet import defer
 
-
 class TryJobBaseMixIn:
   _last_lkgr = None
 
   def __init__(self):
     pass
 
   def SubmitJob(self, parsed_job, changeids):
     if not parsed_job['bot']:
       raise BadJobfile(
           'incoming Try job did not specify any allowed builder names')
 
     d = self.master.db.sourcestamps.addSourceStamp(
         branch=parsed_job['branch'],
         revision=parsed_job['revision'],
         patch_body=parsed_job['patch'],
         patch_level=parsed_job['patchlevel'],
         patch_subdir=parsed_job['root'],
         project=parsed_job['project'],
         repository=parsed_job['repository'] or '',
         changeids=changeids)
     def create_buildset(ssid):
-      log.msg('Creating try job %s' % ssid)
-      return self.addBuildsetForSourceStamp(ssid=ssid,
-          reason=parsed_job['name'],
-          external_idstring=parsed_job['name'],
-          builderNames=parsed_job['bot'],
-          properties=self.get_props(parsed_job))
+      log.msg('Creating try job(s) %s' % ssid)
+      result = None
+      for build in parsed_job['bot']:
+        bot = build.split(':', 1)[0]
+        result = self.addBuildsetForSourceStamp(ssid=ssid,
+            reason=parsed_job['name'],
+            external_idstring=parsed_job['name'],
+            builderNames=[bot],
+            properties=self.parse_decoration(
+                self.get_props(parsed_job), ''.join(build.split(':', 1)[1:])))
+
+      return result
     d.addCallback(create_buildset)
     d.addErrback(log.err, "Failed to queue a try job!")
     return d
 
   def get_lkgr(self, options):
     """Grabs last known good revision number if necessary."""
     options['rietveld'] = (self.code_review_sites or {}).get(options['project'])
     last_good_url = (self.last_good_urls or {}).get(options['project'])
     if options['revision'] or not last_good_url:
       return defer.succeed(0)
 
     def Success(result):
       try:
         new_value = int(result.strip())
       except (TypeError, ValueError):
         new_value = None
       if new_value and (not self._last_lkgr or new_value > self._last_lkgr):
         self._last_lkgr = new_value
       options['revision'] = self._last_lkgr or 'HEAD'
 
     def Failure(result):
       options['revision'] = self._last_lkgr or 'HEAD'
 
     connection = client.getPage(last_good_url, agent='buildbot')
     connection.addCallbacks(Success, Failure)
     return connection