Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/version.py @ 4661:a7e9b6b1adeb
Backed out changeset cfa477946181824f4c769580ebf59710090ba08a
Only printenv was changed, not the actual execution of hooks.
And not setting an empty value might cause problems on platforms
which can't always remove variables from the environment.
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Thu, 21 Jun 2007 10:00:59 +0200 |
parents | cff3e4b4a8de |
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2858 | 1 # Copyright (C) 2005, 2006 by Intevation GmbH |
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Support for 'hg --version'. setup.py stores version from hg repository.
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2 # Author(s): |
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Support for 'hg --version'. setup.py stores version from hg repository.
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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 |
461 | 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(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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48 |
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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"): |
461 | 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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74 |
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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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79 |