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 19import itertools 20 21from operator import attrgetter 22from zipfile import ZipFile 23 24 25def ZipCompare(path_a, path_b): 26 """Compares the contents of two Zip archives, returns True if equal.""" 27 28 with ZipFile(path_a, 'r') as zip_a: 29 info_a = zip_a.infolist() 30 31 with ZipFile(path_b, 'r') as zip_b: 32 info_b = zip_b.infolist() 33 34 if len(info_a) != len(info_b): 35 return False 36 37 info_a.sort(key=attrgetter('filename')) 38 info_b.sort(key=attrgetter('filename')) 39 40 return all( 41 a.filename == b.filename and 42 a.file_size == b.file_size and 43 a.CRC == b.CRC 44 for a, b in itertools.izip(info_a, info_b)) 45