[polymer] Merge of master into polymer10-migration

dashboard/dashboard/delete_test_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.
 
 """Task queue task which deletes a TestMetadata, its subtests, and all their
    Rows.
 
 A delete consists of listing all TestMetadata entities which match the name
 pattern, and then, for each, recursively deleting all child Row entities and
 then TestMetadatas.
 
 For any delete, there could be hundreds of TestMetadatas and many thousands of
 Rows. Datastore operations often time out after a few hundred deletes(), so this
 task is split up using the task queue.
 """
 
+import logging
+
 from google.appengine.api import mail
 from google.appengine.api import taskqueue
 from google.appengine.ext import ndb
 
 from dashboard import datastore_hooks
 from dashboard import list_tests
 from dashboard import request_handler
 from dashboard import utils
 from dashboard.models import graph_data
 
@@ skipping 99 matching lines @@
     task_params = {
         'test_key': test_key_urlsafe,
     }
     taskqueue.add(
         url='/delete_test_data',
         params=task_params,
         queue_name=_TASK_QUEUE_NAME)
 
 
 def _DeleteTestData(test_key):
+  logging.info('DELETING TEST DATA FOR %s', utils.TestPath(test_key))
   futures = []
   num_tests_processed = 0
   finished = True
   descendants = list_tests.GetTestDescendants(test_key)
   for descendant in descendants:
     rows = graph_data.GetLatestRowsForTest(
         descendant, _ROWS_TO_DELETE_AT_ONCE, keys_only=True)
     if rows:
       futures.extend(ndb.delete_multi_async(rows))
       finished = False
@@ skipping 22 matching lines @@
   if not test or not test.sheriff:
     return
   body = _SHERIFF_ALERT_EMAIL_BODY % {
       'test_path': utils.TestPath(test.key),
       'sheriff': test.sheriff.string_id(),
   }
   mail.send_mail(sender='gasper-alerts@google.com',
                  to='chrome-performance-monitoring-alerts@google.com',
                  subject='Sheriffed Test Deleted',
                  body=body)