Add set_log_level function

Author: grktsh

src/cloud_tasks_deferred/deferred.py

@@ -75,13 +75,15 @@ def do_something_later(key, amount):
 from __future__ import unicode_literals
 
 import datetime
+import logging
 import os
 import pickle
 import types
 
 from google.cloud import tasks_v2
 from google.protobuf import timestamp_pb2
 
+_DEFAULT_LOG_LEVEL = logging.INFO
 _DEFAULT_URL = '/_tasks/deferred'
 _DEFAULT_QUEUE = 'default'
 
@@ -102,6 +104,17 @@ class InvalidTaskError(Error):
     """The parameters, headers, or method of the task is invalid."""
 
 
+def set_log_level(log_level):  # pragma: no cover
+    """Sets the log level deferred will log to in normal circumstances.
+
+    Args:
+        log_level: one of logging log levels, e.g. logging.DEBUG,
+        logging.INFO, etc.
+    """
+    global _DEFAULT_LOG_LEVEL
+    _DEFAULT_LOG_LEVEL = log_level
+
+
 def run(data):
     """Unpickle and execute a task.
 

src/cloud_tasks_deferred/wsgi.py

@@ -36,7 +36,7 @@ def abort(status):
         for k, v in six.iteritems(environ)
         if k.upper().startswith('HTTP_X_APPENGINE_')
     ]
-    logger.info(', '.join(headers))
+    logger.log(deferred._DEFAULT_LOG_LEVEL, ', '.join(headers))
 
     content_length = int(environ.get('CONTENT_LENGTH', 0))
     data = environ['wsgi.input'].read(content_length)