Mercurial > hg > gitserve

annotate mercurial/version.py @ 871:c2e77581bc84

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Merge with mpm.
author Bryan O'Sullivan <bos@serpentine.com>
date Tue, 09 Aug 2005 17:24:38 -0800
parents 50da4bb9cab6
children 7eb694a1c1af
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25afb21d97ba Support for 'hg --version'. setup.py stores version from hg repository.
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1 # Copyright (C) 2005 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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17
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18 unknown_version = 'unknown'
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19 remembered_version = False
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20
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21 def get_version():
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22 """Return version information if available."""
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23 try:
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24 from mercurial.__version__ import version
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25 except ImportError:
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26 version = unknown_version
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27 return version
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29 def write_version(version):
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30 """Overwrite version file."""
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31 filename = os.path.join(os.path.dirname(__file__), '__version__.py')
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32 f = open(filename, 'w')
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33 f.write("# This file is auto-generated.\n")
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34 f.write("version = %r\n" % version)
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35 f.close()
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36
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37 def remember_version(version=None):
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38 """Store version information."""
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39 global remembered_version
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40 if not version and os.path.isdir(".hg"):
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41 f = os.popen("hg identify 2> %s" % util.nulldev) # use real hg installation
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42 ident = f.read()[:-1]
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43 if not f.close() and ident:
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44 ids = ident.split(' ', 1)
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45 version = ids.pop(0)
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46 if version[-1] == '+':
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47 version = version[:-1]
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48 modified = True
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49 else:
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50 modified = False
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51 if version.isalnum() and ids:
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52 for tag in ids[0].split('/'):
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53 # is a tag is suitable as a version number?
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54 if re.match(r'^(\d+\.)+[\w.-]+$', tag):
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55 version = tag
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56 break
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57 if modified:
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58 version += time.strftime('+%Y%m%d')
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59 if version:
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60 remembered_version = True
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61 write_version(version)
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63 def forget_version():
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64 """Remove version information."""
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65 if remembered_version:
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66 write_version(unknown_version)
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