1# Copyright (C) 2010 Google Inc. All rights reserved. 2# 3# Redistribution and use in source and binary forms, with or without 4# modification, are permitted provided that the following conditions 5# are met: 6# 7# 1. Redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer. 9# 2. Redistributions in binary form must reproduce the above copyright 10# notice, this list of conditions and the following disclaimer in the 11# documentation and/or other materials provided with the distribution. 12# 13# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 14# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 20# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24from webkitpy.common.system.filesystem import FileSystem 25 26 27class FileSetFileHandle(object): 28 """Points to a file that resides in a file set""" 29 def __init__(self, fileset, filename, filesystem=None): 30 self._filename = filename 31 self._fileset = fileset 32 self._contents = None 33 self._filesystem = filesystem or FileSystem() 34 35 def __str__(self): 36 return "%s:%s" % (self._fileset, self._filename) 37 38 def close(self): 39 pass 40 41 def contents(self): 42 if self._contents is None: 43 self._contents = self._fileset.read(self._filename) 44 return self._contents 45 46 def save_to(self, path, filename=None): 47 if filename is None: 48 self._fileset.extract(self._filename, path) 49 return 50 with self._filesystem.mkdtemp() as temp_dir: 51 self._fileset.extract(self._filename, temp_dir) 52 53 src = self._filesystem.join(temp_dir, self._filename) 54 dest = self._filesystem.join(path, filename) 55 self._filesystem.copyfile(src, dest) 56 57 def delete(self): 58 self._fileset.delete(self._filename) 59 60 def name(self): 61 return self._filename 62 63 def splitext(self): 64 return self._filesystem.splitext(self.name()) 65