Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/version.py @ 653:94cdd02792b5
Fix corruption resulting from skipping parts of a revision group
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Fix corruption resulting from skipping parts of a revision group
We were occassionally losing track of what revision a delta applied to
when we skipped over deltas we already had and applying the delta
against the wrong base. This could result in coredumps from mpatch,
consistency errors, or failed verify.
manifest hash: fcf20a8abfd81f08fae2398136b2ed66216b2083
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author | Matt Mackall <mpm@selenic.com> |
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date | Fri, 08 Jul 2005 13:21:22 -0800 |
parents | 50da4bb9cab6 |
children | 7eb694a1c1af |
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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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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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Support for 'hg --version'. setup.py stores version from hg repository.
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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(): |
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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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28 |
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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"): |
461 | 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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62 |
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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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67 |