Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/version.py @ 5483:0c43f87baba3 default tip

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Fix file-changed-to-dir and dir-to-file commits (issue660). Allow adding to dirstate files that clash with previously existing but marked for removal. Protect from reintroducing clashes by revert. This change doesn't address related issues with update. Current workaround is to do "clean" update by manually removing conflicting files/dirs from working directory.
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Oct 2007 16:27:55 +0400
parents cff3e4b4a8de
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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345bac2bc4ec update copyrights.
Vadim Gelfer <vadim.gelfer@gmail.com>
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1 # Copyright (C) 2005, 2006 by Intevation GmbH
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2 # Author(s):
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3 # Thomas Arendsen Hein <thomas@intevation.de>
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4 #
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5 # This program is free software under the GNU GPL (>=v2)
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6 # Read the file COPYING coming with the software for details.
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7
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8 """
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9 Mercurial version
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10 """
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11
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12 import os
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13 import os.path
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14 import re
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15 import time
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16 import util
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18 unknown_version = 'unknown'
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19 remembered_version = False
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21 def get_version(doreload=False):
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22 """Return version information if available."""
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23 try:
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24 import mercurial.__version__
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25 if doreload:
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26 reload(mercurial.__version__)
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27 version = mercurial.__version__.version
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28 except ImportError:
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29 version = unknown_version
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30 return version
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31
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32 def write_version(version):
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33 """Overwrite version file."""
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34 if version == get_version():
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35 return
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36 directory = os.path.dirname(__file__)
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37 for suffix in ['py', 'pyc', 'pyo']:
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38 try:
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39 os.unlink(os.path.join(directory, '__version__.%s' % suffix))
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40 except OSError:
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41 pass
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42 f = open(os.path.join(directory, '__version__.py'), 'w')
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43 f.write("# This file is auto-generated.\n")
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44 f.write("version = %r\n" % version)
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45 f.close()
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46 # reload the file we've just written
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47 get_version(True)
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49 def remember_version(version=None):
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50 """Store version information."""
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51 global remembered_version
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52 if not version and os.path.isdir(".hg"):
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53 f = os.popen("hg identify 2> %s" % util.nulldev) # use real hg installation
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54 ident = f.read()[:-1]
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55 if not f.close() and ident:
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56 ids = ident.split(' ', 1)
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57 version = ids.pop(0)
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58 if version[-1] == '+':
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59 version = version[:-1]
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60 modified = True
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61 else:
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62 modified = False
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63 if version.isalnum() and ids:
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64 for tag in ids[0].split('/'):
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65 # is a tag is suitable as a version number?
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66 if re.match(r'^(\d+\.)+[\w.-]+$', tag):
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67 version = tag
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68 break
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69 if modified:
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70 version += time.strftime('+%Y%m%d')
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71 if version:
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72 remembered_version = True
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73 write_version(version)
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75 def forget_version():
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76 """Remove version information."""
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77 if remembered_version:
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78 write_version(unknown_version)
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