Findit] Flake Checker: Pipeline to trigger try jobs to identify flake culprits

appengine/findit/model/wf_try_job_data.py

 # 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.
 
 from google.appengine.ext import ndb
 
 from model.base_try_job_data import BaseTryJobData
 from model.wf_try_job import WfTryJob
 
 
 class WfTryJobData(BaseTryJobData):
   """Represents a tryjob's data for a completed compile or test try job."""
   # Number of commits in the revision range.
   regression_range_size = ndb.IntegerProperty(indexed=False)
 
-  # Number of commits analyzed to determine a culprit if any.
+  # Number of commits analyzed to determine a culprit, if any.
   number_of_commits_analyzed = ndb.IntegerProperty(indexed=False)
 
   # Culprit(s) determined to have caused the failure, if any.
   culprits = ndb.JsonProperty(indexed=False)
 
   # Whether or not the try job had compile targets passed (compile only).
   has_compile_targets = ndb.BooleanProperty(indexed=True)
 
   # Whether or not the try job had heuristic results to guide it.
   has_heuristic_results = ndb.BooleanProperty(indexed=True)
 
   # The type of try job, such as 'compile' or 'test'.
   try_job_type = ndb.StringProperty(indexed=True)
 
   @ndb.ComputedProperty
   def build_number(self):
     return WfTryJob.GetBuildNumber(self.try_job_key)
 
   @staticmethod
   def _CreateKey(build_id):  # pragma: no cover
     return ndb.Key('WfTryJobData', build_id)
 
   @staticmethod
   def Create(build_id):  # pragma: no cover
     return WfTryJobData(key=WfTryJobData._CreateKey(build_id))
 
   @staticmethod
   def Get(build_id):  # pragma: no cover
     return WfTryJobData._CreateKey(build_id).get()