1 # Copyright 2013 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 from file_system import FileNotFoundError, FileSystem, StatInfo
6 from future import Future
8 class EmptyDirFileSystem(FileSystem):
9 '''A FileSystem with empty directories. Useful to inject places to disable
10 features such as samples.
12 def Read(self, paths, binary=False):
15 if not path.endswith('/'):
16 raise FileNotFoundError('EmptyDirFileSystem cannot read %s' % path)
18 return Future(value=result)
21 if not path.endswith('/'):
22 raise FileNotFoundError('EmptyDirFileSystem cannot stat %s' % path)
23 return StatInfo(0, child_versions=[])
25 def GetIdentity(self):
26 return self.__class__.__name__