1#!/usr/bin/python -B 2 3# Copyright 2017 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17"""Utility methods to work with Zip archives.""" 18 19try: 20 import itertools.izip as zip 21except ImportError: 22 pass 23 24from operator import attrgetter 25from zipfile import ZipFile 26 27 28def ZipCompare(path_a, path_b): 29 """Compares the contents of two Zip archives, returns True if equal.""" 30 31 with ZipFile(path_a, 'r') as zip_a: 32 info_a = zip_a.infolist() 33 34 with ZipFile(path_b, 'r') as zip_b: 35 info_b = zip_b.infolist() 36 37 if len(info_a) != len(info_b): 38 return False 39 40 info_a.sort(key=attrgetter('filename')) 41 info_b.sort(key=attrgetter('filename')) 42 43 return all( 44 a.filename == b.filename and 45 a.file_size == b.file_size and 46 a.CRC == b.CRC 47 for a, b in zip(info_a, info_b)) 48