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#!/usr/bin/python -B
# Copyright 2017 The Android Open Source Project
#
# 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.
"""Utility methods to work with Zip archives."""
import itertools
from operator import attrgetter
from zipfile import ZipFile
def ZipCompare(path_a, path_b):
"""Compares the contents of two Zip archives, returns True if equal."""
with ZipFile(path_a, 'r') as zip_a:
info_a = zip_a.infolist()
with ZipFile(path_b, 'r') as zip_b:
info_b = zip_b.infolist()
if len(info_a) != len(info_b):
return False
info_a.sort(key=attrgetter('filename'))
info_b.sort(key=attrgetter('filename'))
return all(
a.filename == b.filename and
a.file_size == b.file_size and
a.CRC == b.CRC
for a, b in itertools.izip(info_a, info_b))
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