annotate tests/md5sum.py @ 31976:e0b6421b2fc5

obsolescence: add test for the "branch replacement" logic during push, case A3 Mercurial checks for the introduction of new heads on push. Evolution comes into play to detect if existing branches on the server are being replaced by some of the new one we push. The current code for this logic is very basic (eg: issue4354) and was poorly tested. We have a better implementation coming in the evolve extension fixing these issues and with more serious tests coverage. In the process of upstreaming this improved logic, we start with adding the test case that are already passing with the current implementation. Once they are all in, we'll upstream the better implementation and the extra test case. See inline documentation for details about the test case added in this changeset.
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Thu, 13 Apr 2017 16:23:18 +0200
parents 8d1cdee372e6
children 3a64ac39b893
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1 #!/usr/bin/env python
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2 #
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3 # Based on python's Tools/scripts/md5sum.py
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2, which is
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7 # GPL-compatible.
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8
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9 from __future__ import absolute_import
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10
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11 import os
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12 import sys
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14 try:
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15 import hashlib
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16 md5 = hashlib.md5
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17 except ImportError:
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18 import md5
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19 md5 = md5.md5
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20
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21 try:
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22 import msvcrt
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23 msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
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24 msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
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25 except ImportError:
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26 pass
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27
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28 for filename in sys.argv[1:]:
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29 try:
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30 fp = open(filename, 'rb')
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31 except IOError as msg:
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32 sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg))
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33 sys.exit(1)
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35 m = md5()
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36 try:
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37 for data in iter(lambda: fp.read(8192), ''):
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38 m.update(data)
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39 except IOError as msg:
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40 sys.stderr.write('%s: I/O error: %s\n' % (filename, msg))
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41 sys.exit(1)
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42 sys.stdout.write('%s %s\n' % (m.hexdigest(), filename))
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43
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44 sys.exit(0)