Mercurial > hg
annotate mercurial/version.py @ 6293:9c195637ac0b
Backed out changeset 4b81eecc8aa2
author | Bryan O'Sullivan <bos@serpentine.com> |
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date | Mon, 17 Mar 2008 14:51:36 -0700 |
parents | 4b81eecc8aa2 |
children | 9cd6292abfdf |
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Remove unneeded "import os.path"
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1 # Copyright (C) 2005, 2006, 2008 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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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 re |
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14 import time |
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15 |
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16 unknown_version = 'unknown' |
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17 remembered_version = False |
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18 |
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19 def get_version(doreload=False): |
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20 """Return version information if available.""" |
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21 try: |
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22 import mercurial.__version__ |
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23 if doreload: |
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24 reload(mercurial.__version__) |
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25 version = mercurial.__version__.version |
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26 except ImportError: |
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27 version = unknown_version |
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28 return version |
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29 |
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30 def write_version(version): |
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31 """Overwrite version file.""" |
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32 if version == get_version(): |
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33 return |
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34 directory = os.path.dirname(__file__) |
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35 for suffix in ['py', 'pyc', 'pyo']: |
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36 try: |
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37 os.unlink(os.path.join(directory, '__version__.%s' % suffix)) |
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38 except OSError: |
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39 pass |
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40 f = open(os.path.join(directory, '__version__.py'), 'w') |
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41 f.write("# This file is auto-generated.\n") |
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42 f.write("version = %r\n" % version) |
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43 f.close() |
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44 # reload the file we've just written |
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45 get_version(True) |
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46 |
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47 def remember_version(version=None): |
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48 """Store version information.""" |
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49 global remembered_version |
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50 if not version and os.path.isdir(".hg"): |
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51 f = os.popen("hg identify") # use real hg installation |
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52 ident = f.read()[:-1] |
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53 if not f.close() and ident: |
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54 ids = ident.split(' ', 1) |
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55 version = ids.pop(0) |
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56 if version[-1] == '+': |
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57 version = version[:-1] |
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58 modified = True |
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59 else: |
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60 modified = False |
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61 if version.isalnum() and ids: |
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62 for tag in ids[0].split('/'): |
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63 # is a tag is suitable as a version number? |
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64 if re.match(r'^(\d+\.)+[\w.-]+$', tag): |
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65 version = tag |
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66 break |
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67 if modified: |
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68 version += time.strftime('+%Y%m%d') |
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69 if version: |
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70 remembered_version = True |
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71 write_version(version) |
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72 |
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73 def forget_version(): |
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74 """Remove version information.""" |
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75 if remembered_version: |
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76 write_version(unknown_version) |
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77 |