| # Copyright 2016 Google Inc. All Rights Reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """Represent various types of content that can be stored in a .par file |
| |
| See: http://www.pkware.com/documents/casestudies/APPNOTE.TXT |
| |
| TODO: Timestamp normalization |
| TODO: Python source compilation |
| TODO: ELF binary stripping |
| """ |
| |
| import os |
| |
| |
| class StoredResource(object): |
| """A local resource which can be committed to a par file. |
| |
| Args: |
| stored_filename: Relative path to store content under |
| """ |
| |
| def __init__(self, stored_filename): |
| assert not os.path.isabs(stored_filename) |
| self.stored_filename = stored_filename |
| |
| def store(self, unused_zip_file): |
| """Write resource to zip file""" |
| raise NotImplementedError |
| |
| |
| class StoredFile(StoredResource): |
| """One file that will be stored in the final archive.""" |
| |
| def __init__(self, stored_filename, local_filename): |
| StoredResource.__init__(self, stored_filename) |
| self.local_filename = local_filename |
| |
| def store(self, zip_file): |
| zip_file.write(self.local_filename, self.stored_filename) |
| |
| |
| class StoredContent(StoredResource): |
| """Literal byte string to store in a par file.""" |
| |
| def __init__(self, stored_filename, content): |
| StoredResource.__init__(self, stored_filename) |
| self.content = content |
| |
| def store(self, zip_file): |
| zip_file.writestr(self.stored_filename, self.content) |
| |
| |
| class EmptyFile(StoredContent): |
| """An empty file included in the par file, usually an __init__.py file.""" |
| |
| def __init__(self, stored_filename): |
| StoredContent.__init__(self, stored_filename, b'') |