Fredrik Roubert | 36a4299 | 2017-08-16 18:35:00 -0700 | [diff] [blame] | 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 | |
Luca Stefani | 23064e2 | 2019-01-04 17:09:19 +0100 | [diff] [blame] | 19 | try: |
| 20 | import itertools.izip as zip |
| 21 | except ImportError: |
| 22 | pass |
Fredrik Roubert | 36a4299 | 2017-08-16 18:35:00 -0700 | [diff] [blame] | 23 | |
| 24 | from operator import attrgetter |
| 25 | from zipfile import ZipFile |
Nikita Iashchenko | f936814 | 2019-07-02 18:59:49 +0100 | [diff] [blame] | 26 | import os |
Fredrik Roubert | 36a4299 | 2017-08-16 18:35:00 -0700 | [diff] [blame] | 27 | |
| 28 | |
| 29 | def ZipCompare(path_a, path_b): |
| 30 | """Compares the contents of two Zip archives, returns True if equal.""" |
| 31 | |
Nikita Iashchenko | f936814 | 2019-07-02 18:59:49 +0100 | [diff] [blame] | 32 | if not os.path.isfile(path_a) or not os.path.isfile(path_b): |
| 33 | return False |
| 34 | |
Fredrik Roubert | 36a4299 | 2017-08-16 18:35:00 -0700 | [diff] [blame] | 35 | with ZipFile(path_a, 'r') as zip_a: |
| 36 | info_a = zip_a.infolist() |
| 37 | |
| 38 | with ZipFile(path_b, 'r') as zip_b: |
| 39 | info_b = zip_b.infolist() |
| 40 | |
| 41 | if len(info_a) != len(info_b): |
| 42 | return False |
| 43 | |
| 44 | info_a.sort(key=attrgetter('filename')) |
| 45 | info_b.sort(key=attrgetter('filename')) |
| 46 | |
| 47 | return all( |
| 48 | a.filename == b.filename and |
| 49 | a.file_size == b.file_size and |
| 50 | a.CRC == b.CRC |
Luca Stefani | 23064e2 | 2019-01-04 17:09:19 +0100 | [diff] [blame] | 51 | for a, b in zip(info_a, info_b)) |