tools/android/loading Add timestamps to backend logs.

tools/android/loading/cloud/frontend/clovis_frontend.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.
 
 import logging
 import os
 import sys
 import time
 
 import cloudstorage
 import flask
 from google.appengine.api import (app_identity, taskqueue)
 from google.appengine.ext import deferred
 from oauth2client.client import GoogleCredentials
 
 import common.clovis_paths
 from common.clovis_task import ClovisTask
 import common.google_bigquery_helper
 import common.google_instance_helper
 from common.loading_trace_database import LoadingTraceDatabase
 import email_helper
 from memory_logs import MemoryLogs
 
 
 # Global variables.
+logging.Formatter.converter = time.gmtime
 clovis_logger = logging.getLogger('clovis_frontend')
 clovis_logger.setLevel(logging.DEBUG)
 project_name = app_identity.get_application_id()
 instance_helper = common.google_instance_helper.GoogleInstanceHelper(
     credentials=GoogleCredentials.get_application_default(),
     project=project_name,
     logger=clovis_logger)
 app = flask.Flask(__name__)
 
 
@@ skipping 420 matching lines @@
 @app.errorhandler(404)
 def PageNotFound(e):  # pylint: disable=unused-argument
   """Return a custom 404 error."""
   return 'Sorry, Nothing at this URL.', 404
 
 
 @app.errorhandler(500)
 def ApplicationError(e):
   """Return a custom 500 error."""
   return 'Sorry, unexpected error: {}'.format(e), 499