Devserver: only populate data during cron jobs, meaning all data from instances

chrome/common/extensions/docs/server2/offline_file_system.py

+# Copyright 2013 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 file_system import FileSystem, FileNotFoundError
+
+class OfflineFileSystem(FileSystem):
+  '''An offline FileSystem which masquerades as another file system. It throws
+  FileNotFound error for all operations, and overrides GetName and GetVersion.
+  '''
+  def __init__(self, cls):
+    self._cls = cls
+
+  def Read(self, paths, binary=False):
+    raise FileNotFoundError(paths)
+
+  def Stat(self, path):
+    raise FileNotFoundError(path)
+
+  # HACK: despite GetName/GetVersion being @classmethods, these need to be
+  # instance methods so that we can grab the name and version from the class
+  # given on construction.
+
+  def GetName(self):
+    return self._cls.GetName()
+
+  def GetVersion(self):
+    return self._cls.GetVersion()