[Predator] Run predator.

appengine/findit/lib/cache_decorator.py

 # Copyright 2015 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.
 
 # TODO(http://crbug.com/660466): We should try to break dependencies.
 
 """This module provides a decorator to cache the results of a function.
 
   Examples:
   1. Decorate a function:
@@ skipping 30 matching lines @@
 import hashlib
 import inspect
 import logging
 import os
 import pickle
 import threading
 import zlib
 
 from google.appengine.api import memcache
 
-_DEFAULT_LOCAL_CACHE_DIR = os.path.join(os.path.expanduser('~'),
+_PREDATOR_ROOT_DIR = os.path.join(os.path.dirname(__file__), os.path.pardir)

[stgao, 2016/11/02 01:45:48]

not "PREDATOR" here, as this is for general purpose.

[Sharu Jiang, 2016/11/11 23:10:26]

Done in rebase.

+_DEFAULT_LOCAL_CACHE_DIR = os.path.join(_PREDATOR_ROOT_DIR,
                                         '.culprit_finder', 'local_cache')
 
 
 class Cacher(object):
   """An interface to cache and retrieve data.
 
   Subclasses should implement the Get/Set functions.
   TODO: Add a Delete function (default to no-op) if needed later.
   """
   def Get(self, key):
@@ skipping 94 matching lines @@
       if not os.path.exists(path):
         return None
 
       try:
         with open(path) as f:
           return pickle.loads(zlib.decompress(f.read()))
       except Exception as e:  # pragma: no cover.
         logging.error('Failed loading cache: %s', e)
         return None
 
-  def Set(self, key, data):  # pylint: disable=W
+  def Set(self, key, data, expire_time=0):  # pylint: disable=W
     with LocalCacher.lock:
       try:
         with open(os.path.join(self.cache_dir, key), 'wb') as f:
           f.write(zlib.compress(pickle.dumps(data)))
       except Exception as e:  # pragma: no cover.
         logging.error('Failed setting cache for key %s: %s', key, e)
 
 
 def _DefaultKeyGenerator(func, args, kwargs):
   """Generates a key from the function and arguments passed to it.
@@ skipping 81 matching lines @@
         except Exception:  # pragma: no cover.
           logging.exception(
               'Failed to cache data for function %s.%s, args=%s, kwargs=%s',
               func.__module__, func.__name__, repr(args), repr(kwargs))
 
       return result
 
     return Wrapped
 
   return Decorator