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annotate contrib/compress.py @ 12021:42253a4d2be5

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contrib/compress: correct ordering of copying Changelog should always be copied last, otherwise readers can see an inconsistent repo.
author Benoit Boissinot <benoit.boissinot@ens-lyon.org>
date Sun, 22 Aug 2010 19:27:09 +0200
parents 69498b1b552b
children 6b04f1e1aa8a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # Copyright 2010 Pradeepkumar Gayam <in3xes@gmail.com>
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2 #
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3 # Author(s):
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4 # Pradeepkumar Gayam <in3xes@gmail.com>
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5 #
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6 # This software may be used and distributed according to the terms of the
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7 # GNU General Public License version 2 or any later version.
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8
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9
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10 from mercurial import hg, localrepo
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11 from mercurial.lock import release
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12 import weakref
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13
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14 def _copyrevlog(ui, src, dst, tr, progress=None):
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15 if progress:
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16 desc = 'adding %s' % progress
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17 total = len(src)
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18 def progress(count):
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19 ui.progress(desc, count, unit=('revisions'), total=total)
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20 else:
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21 progress = lambda x: None
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22 for r in src:
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23 p = [src.node(i) for i in src.parentrevs(r)]
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24 dst.addrevision(src.revision(src.node(r)), tr, src.linkrev(r),
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25 p[0], p[1])
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26 progress(r)
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27
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28 def compress(ui, repo, dest):
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29 dest = hg.localpath(ui.expandpath(dest))
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30 target = localrepo.instance(ui, dest, create=True)
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31
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32 tr = lock = tlock = None
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33 try:
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34 lock = repo.lock()
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35 tlock = target.lock()
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36 tr = target.transaction("compress")
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37 trp = weakref.proxy(tr)
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38
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39 _copyrevlog(ui, repo.manifest, target.manifest, trp, 'manifest')
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40
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41 # only keep indexes and filter "data/" prefix and ".i" suffix
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42 datafiles = [fn[5:-2] for fn, f2, size in repo.store.datafiles()
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43 if size and fn.endswith('.i')]
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44 total = len(datafiles)
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45 for cnt, f in enumerate(datafiles):
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46 _copyrevlog(ui, repo.file(f), target.file(f), trp)
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47 ui.progress(('adding files'), cnt, item=f, unit=('file'),
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48 total=total)
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49
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50 _copyrevlog(ui, repo.changelog, target.changelog, trp, 'changesets')
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51
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52 tr.close()
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53 finally:
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54 if tr:
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55 tr.release()
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56 release(tlock, lock)
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57
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58 cmdtable = {
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59 "compress" : (compress, [], "DEST")
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60 }