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annotate contrib/shrink-revlog.py @ 10622:bc81f126139f

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shrink-revlog: add --sort option for user-selectable toposort algorithm.
author Greg Ward <greg-hg@gerg.ca>
date Thu, 25 Feb 2010 09:16:39 -0500
parents c93f0a23f381
children 64e286c22f29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python
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2
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3 """\
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4 reorder a revlog (the manifest by default) to save space
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5
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6 Specifically, this topologically sorts the revisions in the revlog so that
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7 revisions on the same branch are adjacent as much as possible. This is a
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8 workaround for the fact that Mercurial computes deltas relative to the
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9 previous revision rather than relative to a parent revision.
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10
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11 This is *not* safe to run on a changelog.
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12 """
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13
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14 # Originally written by Benoit Boissinot <benoit.boissinot at ens-lyon.org>
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15 # as a patch to rewrite-log. Cleaned up, refactored, documented, and
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16 # renamed by Greg Ward <greg at gerg.ca>.
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17
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18 # XXX would be nice to have a way to verify the repository after shrinking,
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19 # e.g. by comparing "before" and "after" states of random changesets
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20 # (maybe: export before, shrink, export after, diff).
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21
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22 import os, tempfile, errno
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23 from mercurial import revlog, transaction, node, util
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24 from mercurial import changegroup
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25 from mercurial.i18n import _
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26
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27 def toposort_branchsort(ui, rl):
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28
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29 children = {}
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30 root = []
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31 # build children and roots
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32 ui.status(_('reading revs\n'))
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33 try:
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34 for rev in rl:
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35 ui.progress(_('reading'), rev, total=len(rl))
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36 children[rev] = []
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37 parents = [p for p in rl.parentrevs(rev) if p != node.nullrev]
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38 # in case of duplicate parents
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39 if len(parents) == 2 and parents[0] == parents[1]:
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40 del parents[1]
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41 for p in parents:
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42 assert p in children
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43 children[p].append(rev)
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44
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45 if len(parents) == 0:
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46 root.append(rev)
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47 finally:
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48 ui.progress(_('reading'), None, total=len(rl))
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49
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50 # XXX this is a reimplementation of the 'branchsort' topo sort
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51 # algorithm in hgext.convert.convcmd... would be nice not to duplicate
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52 # the algorithm
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53 ui.status(_('sorting revs\n'))
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54 visit = root
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55 result = []
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56
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57 # suboptimal: nodes whose predecessor is not first parent
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58 suboptimal = 0
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59
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60 while visit:
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61 cur = visit.pop(0)
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62 # revlog will compute delta relative to result[-1], so keep track
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63 # of nodes where this might result in a large delta
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64 parents = rl.parentrevs(cur)
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65 if result:
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66 if result[-1] != parents[0]:
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67 suboptimal += 1
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68
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69 result.append(cur)
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70 if cur not in children:
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71 # This only happens if some node's p1 == p2, which can
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72 # happen in the manifest in certain circumstances.
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73 continue
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74 next = []
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75 for c in children.pop(cur):
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76 parents_unseen = [p for p in rl.parentrevs(c)
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77 if p != node.nullrev and p in children]
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78 if len(parents_unseen) == 0:
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79 next.append(c)
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80 visit = next + visit
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81 ui.note(_('%d suboptimal nodes\n') % suboptimal)
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82 return result
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83
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84 def writerevs(ui, r1, r2, order, tr):
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85
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86 ui.status(_('writing revs\n'))
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87
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88 count = [0]
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89 def progress(*args):
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90 ui.progress(_('writing'), count[0], total=len(order))
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91 count[0] += 1
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92
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93 order = [r1.node(r) for r in order]
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94
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95 # this is a bit ugly, but it works
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96 lookup = lambda x: "%020d" % r1.linkrev(r1.rev(x))
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97 unlookup = lambda x: int(x, 10)
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98
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99 try:
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100 group = util.chunkbuffer(r1.group(order, lookup, progress))
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101 chunkiter = changegroup.chunkiter(group)
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102 r2.addgroup(chunkiter, unlookup, tr)
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103 finally:
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104 ui.progress(_('writing'), None, len(order))
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105
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106 def report(ui, r1, r2):
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107 def getsize(r):
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108 s = 0
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109 for fn in (r.indexfile, r.datafile):
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110 try:
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111 s += os.stat(fn).st_size
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112 except OSError, inst:
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113 if inst.errno != errno.ENOENT:
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114 raise
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115 return s
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116
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117 oldsize = float(getsize(r1))
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118 newsize = float(getsize(r2))
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119
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120 # argh: have to pass an int to %d, because a float >= 2^32
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121 # blows up under Python 2.5 or earlier
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122 ui.write(_('old file size: %12d bytes (%6.1f MiB)\n')
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123 % (int(oldsize), oldsize / 1024 / 1024))
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124 ui.write(_('new file size: %12d bytes (%6.1f MiB)\n')
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125 % (int(newsize), newsize / 1024 / 1024))
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126
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
127 shrink_percent = (oldsize - newsize) / oldsize * 100
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parents:
diff changeset
128 shrink_factor = oldsize / newsize
10508
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
129 ui.write(_('shrinkage: %.1f%% (%.1fx)\n')
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
130 % (shrink_percent, shrink_factor))
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
131
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
132 def shrink(ui, repo, **opts):
10622
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
133 """shrink a revlog by reordering revisions
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
134
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
135 Rewrites all the entries in some revlog of the current repository
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
136 (by default, the manifest log) to save space.
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
137
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
138 Different sort algorithms have different performance
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
139 characteristics. Use ``--sort`` to select a sort algorithm so you
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
140 can determine which works best for your data. The default
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
141 algorithm, ``branchsort``, works well for workflows with lots of
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
142 active (unmerged) branches, but not so well when all branches have
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
143 been merged and there is only one repository head.
10215
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
144 """
9515
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
145
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
146 if not repo.local():
10508
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
147 raise util.Abort(_('not a local repository: %s') % repo.root)
9515
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
148
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
149 fn = opts.get('revlog')
9d79b8f58bea contrib: turn shrink-revlog.py into an extension
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
150 if not fn:
9515
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
151 indexfn = repo.sjoin('00manifest.i')
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
152 else:
10215
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
153 if not fn.endswith('.i'):
10508
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
154 raise util.Abort(_('--revlog option must specify the revlog index '
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
155 'file (*.i), not %s') % opts.get('revlog'))
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
156
10215
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
157 indexfn = os.path.realpath(fn)
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
158 store = repo.sjoin('')
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
159 if not indexfn.startswith(store):
10508
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
160 raise util.Abort(_('--revlog option must specify a revlog in %s, '
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
161 'not %s') % (store, indexfn))
9515
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
162
10622
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parents: 10621
diff changeset
163 sortname = opts['sort']
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
164 try:
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
165 toposort = globals()['toposort_' + sortname]
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
166 except KeyError:
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
167 raise util.Abort(_('no such toposort algorithm: %s') % sortname)
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
168
9515
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
169 if not os.path.exists(indexfn):
10508
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
170 raise util.Abort(_('no such file: %s') % indexfn)
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
171 if '00changelog' in indexfn:
10508
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
172 raise util.Abort(_('shrinking the changelog '
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
173 'will corrupt your repository'))
10542
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
174
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
175 ui.write(_('shrinking %s\n') % indexfn)
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
176 prefix = os.path.basename(indexfn)[:-1]
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
177 (tmpfd, tmpindexfn) = tempfile.mkstemp(dir=os.path.dirname(indexfn),
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
178 prefix=prefix,
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
179 suffix='.i')
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
180 os.close(tmpfd)
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
181
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
182 r1 = revlog.revlog(util.opener(os.getcwd(), audit=False), indexfn)
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
183 r2 = revlog.revlog(util.opener(os.getcwd(), audit=False), tmpindexfn)
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
184
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
185 datafn, tmpdatafn = r1.datafile, r2.datafile
9515
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Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
186
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
187 oldindexfn = indexfn + '.old'
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
188 olddatafn = datafn + '.old'
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
189 if os.path.exists(oldindexfn) or os.path.exists(olddatafn):
10508
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
190 raise util.Abort(_('one or both of\n'
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
191 ' %s\n'
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
192 ' %s\n'
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
193 'exists from a previous run; please clean up '
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
194 'before running again') % (oldindexfn, olddatafn))
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
195
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
196 # Don't use repo.transaction(), because then things get hairy with
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
197 # paths: some need to be relative to .hg, and some need to be
10216
843f6ee6d14b contrib: small documentation fixes in shrink-revlog.py
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10215
diff changeset
198 # absolute. Doing it this way keeps things simple: everything is an
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
199 # absolute path.
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
200 lock = repo.lock(wait=False)
10234
c8d6f339bbd7 shrink-revlog: make it work on windows (issue1976)
Patrick Mezard <pmezard@gmail.com>
parents: 10230
diff changeset
201 tr = transaction.transaction(ui.warn,
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
202 open,
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
203 repo.sjoin('journal'))
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
204
10542
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
205 def ignoremissing(func):
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
206 def f(*args, **kw):
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
207 try:
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
208 return func(*args, **kw)
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
209 except OSError, inst:
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
210 if inst.errno != errno.ENOENT:
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
211 raise
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
212 return f
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
213
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
214 try:
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
215 try:
10213
9e6848f352b0 contrib: use ui to write in shrink-revlog.py
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10009
diff changeset
216 order = toposort(ui, r1)
9e6848f352b0 contrib: use ui to write in shrink-revlog.py
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10009
diff changeset
217 writerevs(ui, r1, r2, order, tr)
10542
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
218 report(ui, r1, r2)
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
219 tr.close()
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
220 except:
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
221 # Abort transaction first, so we truncate the files before
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
222 # deleting them.
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
223 tr.abort()
10542
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
224 for fn in (tmpindexfn, tmpdatafn):
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
225 ignoremissing(os.unlink)(fn)
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
226 raise
10241
4b2a086bee31 shrink-revlog: add --dry-run option
Patrick Mezard <pmezard@gmail.com>
parents: 10236
diff changeset
227 if not opts.get('dry_run'):
10542
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
228 # racy, both files cannot be renamed atomically
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
229 # copy files
10241
4b2a086bee31 shrink-revlog: add --dry-run option
Patrick Mezard <pmezard@gmail.com>
parents: 10236
diff changeset
230 util.os_link(indexfn, oldindexfn)
10542
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
231 ignoremissing(util.os_link)(datafn, olddatafn)
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
232 # rename
10241
4b2a086bee31 shrink-revlog: add --dry-run option
Patrick Mezard <pmezard@gmail.com>
parents: 10236
diff changeset
233 util.rename(tmpindexfn, indexfn)
10542
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
234 try:
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
235 util.rename(tmpdatafn, datafn)
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
236 except OSError, inst:
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
237 if inst.errno != errno.ENOENT:
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
238 raise
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
239 ignoremissing(os.unlink)(datafn)
10241
4b2a086bee31 shrink-revlog: add --dry-run option
Patrick Mezard <pmezard@gmail.com>
parents: 10236
diff changeset
240 else:
10542
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
241 for fn in (tmpindexfn, tmpdatafn):
989b2a5eaaba shrink: handle all combinations of inline/non-inline revlogs
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10509
diff changeset
242 ignoremissing(os.unlink)(fn)
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
243 finally:
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
244 lock.release()
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
245
10241
4b2a086bee31 shrink-revlog: add --dry-run option
Patrick Mezard <pmezard@gmail.com>
parents: 10236
diff changeset
246 if not opts.get('dry_run'):
10508
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
247 ui.write(_('note: old revlog saved in:\n'
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
248 ' %s\n'
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
249 ' %s\n'
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
250 '(You can delete those files when you are satisfied that your\n'
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
251 'repository is still sane. '
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
252 'Running \'hg verify\' is strongly recommended.)\n')
10241
4b2a086bee31 shrink-revlog: add --dry-run option
Patrick Mezard <pmezard@gmail.com>
parents: 10236
diff changeset
253 % (oldindexfn, olddatafn))
9515
f7d85980261c Add script to rewrite revlog to workaround lack of parent deltas.
Greg Ward <greg-hg@gerg.ca>
parents:
diff changeset
254
10215
9d79b8f58bea contrib: turn shrink-revlog.py into an extension
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
255 cmdtable = {
9d79b8f58bea contrib: turn shrink-revlog.py into an extension
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
256 'shrink': (shrink,
10508
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
257 [('', 'revlog', '', _('index (.i) file of the revlog to shrink')),
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
258 ('n', 'dry-run', None, _('do not shrink, simulate only')),
10622
bc81f126139f shrink-revlog: add --sort option for user-selectable toposort algorithm.
Greg Ward <greg-hg@gerg.ca>
parents: 10621
diff changeset
259 ('', 'sort', 'branchsort', 'name of sort algorithm to use'),
10241
4b2a086bee31 shrink-revlog: add --dry-run option
Patrick Mezard <pmezard@gmail.com>
parents: 10236
diff changeset
260 ],
10508
cc35ad583e66 shrink-revlog: add strings for translation / import _ before using it
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10496
diff changeset
261 _('hg shrink [--revlog PATH]'))
10215
9d79b8f58bea contrib: turn shrink-revlog.py into an extension
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 10214
diff changeset
262 }
10236
49a8625b8cac shrink-revlog: help/doc tweaks
Greg Ward <greg-hg@gerg.ca>
parents: 10234
diff changeset
263
49a8625b8cac shrink-revlog: help/doc tweaks
Greg Ward <greg-hg@gerg.ca>
parents: 10234
diff changeset
264 if __name__ == "__main__":
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10241
diff changeset
265 print "shrink-revlog.py is now an extension (see hg help extensions)"