annotate mercurial/repair.py @ 26610:f9f82c444ff7

filemerge: only copy to backup during premerge step The premerge might leave the original file in an unclean state. Therefore it's important to only copy the file in the beginning.
author Siddharth Agarwal <sid0@fb.com>
date Sun, 11 Oct 2015 20:04:40 -0700
parents 56b2bcea2529
children bcace0fbb4c8
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1 # repair.py - functions for repository repair for mercurial
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2 #
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3 # Copyright 2005, 2006 Chris Mason <mason@suse.com>
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4 # Copyright 2007 Matt Mackall
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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 from __future__ import absolute_import
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10
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11 import errno
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12
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13 from .i18n import _
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14 from .node import short
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15 from . import (
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16 bundle2,
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17 changegroup,
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18 error,
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19 exchange,
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20 util,
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21 )
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22
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23 def _bundle(repo, bases, heads, node, suffix, compress=True):
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24 """create a bundle with the specified revisions as a backup"""
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25 cgversion = '01'
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26 if 'generaldelta' in repo.requirements:
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27 cgversion = '02'
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28
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29 cg = changegroup.changegroupsubset(repo, bases, heads, 'strip',
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30 version=cgversion)
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31 backupdir = "strip-backup"
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32 vfs = repo.vfs
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33 if not vfs.isdir(backupdir):
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34 vfs.mkdir(backupdir)
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35
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36 # Include a hash of all the nodes in the filename for uniqueness
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37 allcommits = repo.set('%ln::%ln', bases, heads)
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38 allhashes = sorted(c.hex() for c in allcommits)
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39 totalhash = util.sha1(''.join(allhashes)).hexdigest()
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40 name = "%s/%s-%s-%s.hg" % (backupdir, short(node), totalhash[:8], suffix)
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41
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42 comp = None
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43 if cgversion != '01':
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44 bundletype = "HG20"
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45 if compress:
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46 comp = 'BZ'
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47 elif compress:
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48 bundletype = "HG10BZ"
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49 else:
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50 bundletype = "HG10UN"
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51 return changegroup.writebundle(repo.ui, cg, name, bundletype, vfs,
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52 compression=comp)
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53
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54 def _collectfiles(repo, striprev):
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55 """find out the filelogs affected by the strip"""
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56 files = set()
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57
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58 for x in xrange(striprev, len(repo)):
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59 files.update(repo[x].files())
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60
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61 return sorted(files)
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62
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63 def _collectbrokencsets(repo, files, striprev):
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64 """return the changesets which will be broken by the truncation"""
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65 s = set()
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66 def collectone(revlog):
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67 _, brokenset = revlog.getstrippoint(striprev)
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68 s.update([revlog.linkrev(r) for r in brokenset])
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69
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70 collectone(repo.manifest)
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71 for fname in files:
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72 collectone(repo.file(fname))
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73
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74 return s
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75
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76 def strip(ui, repo, nodelist, backup=True, topic='backup'):
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77
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78 # Simple way to maintain backwards compatibility for this
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79 # argument.
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80 if backup in ['none', 'strip']:
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81 backup = False
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82
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83 repo = repo.unfiltered()
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84 repo.destroying()
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85
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86 cl = repo.changelog
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87 # TODO handle undo of merge sets
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88 if isinstance(nodelist, str):
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89 nodelist = [nodelist]
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90 striplist = [cl.rev(node) for node in nodelist]
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91 striprev = min(striplist)
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92
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93 # Some revisions with rev > striprev may not be descendants of striprev.
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94 # We have to find these revisions and put them in a bundle, so that
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95 # we can restore them after the truncations.
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96 # To create the bundle we use repo.changegroupsubset which requires
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97 # the list of heads and bases of the set of interesting revisions.
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98 # (head = revision in the set that has no descendant in the set;
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99 # base = revision in the set that has no ancestor in the set)
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100 tostrip = set(striplist)
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101 for rev in striplist:
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102 for desc in cl.descendants([rev]):
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103 tostrip.add(desc)
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104
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105 files = _collectfiles(repo, striprev)
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106 saverevs = _collectbrokencsets(repo, files, striprev)
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107
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108 # compute heads
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109 saveheads = set(saverevs)
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110 for r in xrange(striprev + 1, len(cl)):
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111 if r not in tostrip:
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112 saverevs.add(r)
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113 saveheads.difference_update(cl.parentrevs(r))
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114 saveheads.add(r)
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115 saveheads = [cl.node(r) for r in saveheads]
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116
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117 # compute base nodes
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118 if saverevs:
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119 descendants = set(cl.descendants(saverevs))
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120 saverevs.difference_update(descendants)
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121 savebases = [cl.node(r) for r in saverevs]
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122 stripbases = [cl.node(r) for r in tostrip]
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123
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124 # For a set s, max(parents(s) - s) is the same as max(heads(::s - s)), but
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125 # is much faster
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126 newbmtarget = repo.revs('max(parents(%ld) - (%ld))', tostrip, tostrip)
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127 if newbmtarget:
22818
d7b114493315 repair: use `first` instead of direct indexing
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22057
diff changeset
128 newbmtarget = repo[newbmtarget.first()].node()
17264
ec7b9bec19c9 strip: move bookmarks to nearest ancestor rather than '.'
Augie Fackler <raf@durin42.com>
parents: 17013
diff changeset
129 else:
ec7b9bec19c9 strip: move bookmarks to nearest ancestor rather than '.'
Augie Fackler <raf@durin42.com>
parents: 17013
diff changeset
130 newbmtarget = '.'
4702
18e91c9def0c strip: move strip code to a new repair module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
131
13362
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
132 bm = repo._bookmarks
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
133 updatebm = []
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
134 for m in bm:
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
135 rev = repo[bm[m]].rev()
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
136 if rev in tostrip:
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
137 updatebm.append(m)
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
138
4702
18e91c9def0c strip: move strip code to a new repair module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
139 # create a changegroup for all the branches we need to keep
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
140 backupfile = None
20979
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
141 vfs = repo.vfs
24252
f962692853c0 repair: define explicit local variable, don't reuse a comprehension variable
Mike Edgar <adgar@google.com>
parents: 24170
diff changeset
142 node = nodelist[-1]
22057
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
143 if backup:
16388
e03d8a40521f repair: allow giving strip backup a different name
Idan Kamara <idankk86@gmail.com>
parents: 16253
diff changeset
144 backupfile = _bundle(repo, stripbases, cl.heads(), node, topic)
20979
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
145 repo.ui.status(_("saved backup bundle to %s\n") %
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
146 vfs.join(backupfile))
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
147 repo.ui.log("backupbundle", "saved backup bundle to %s\n",
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
148 vfs.join(backupfile))
15386
6051d8e7e133 strip: backout 73307643a09f (issue3077)
Matt Mackall <mpm@selenic.com>
parents: 15068
diff changeset
149 if saveheads or savebases:
11791
00cde9bddbe4 repair: do not compress partial bundle if we do not keep it on disk
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11600
diff changeset
150 # do not compress partial bundle if we remove it from disk later
15386
6051d8e7e133 strip: backout 73307643a09f (issue3077)
Matt Mackall <mpm@selenic.com>
parents: 15068
diff changeset
151 chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp',
22057
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
152 compress=False)
4702
18e91c9def0c strip: move strip code to a new repair module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
153
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
154 mfst = repo.manifest
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
155
25300
678d0bfdd31a repair: forbid strip from inside a transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 24863
diff changeset
156 curtr = repo.currenttransaction()
678d0bfdd31a repair: forbid strip from inside a transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 24863
diff changeset
157 if curtr is not None:
678d0bfdd31a repair: forbid strip from inside a transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 24863
diff changeset
158 del curtr # avoid carrying reference to transaction for nothing
678d0bfdd31a repair: forbid strip from inside a transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 24863
diff changeset
159 msg = _('programming error: cannot strip from inside a transaction')
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26425
diff changeset
160 raise error.Abort(msg, hint=_('contact your extension maintainer'))
25300
678d0bfdd31a repair: forbid strip from inside a transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 24863
diff changeset
161
10881
a685011ed38e localrepo: add desc parameter to transaction
Steve Borho <steve@borho.org>
parents: 10263
diff changeset
162 tr = repo.transaction("strip")
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
163 offset = len(tr.entries)
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
164
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
165 try:
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
166 tr.startgroup()
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
167 cl.strip(striprev, tr)
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
168 mfst.strip(striprev, tr)
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
169 for fn in files:
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
170 repo.file(fn).strip(striprev, tr)
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
171 tr.endgroup()
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
172
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
173 try:
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
174 for i in xrange(offset, len(tr.entries)):
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
175 file, troffset, ignore = tr.entries[i]
23878
37a92908a382 localrepo: remove all external users of localrepo.sopener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23835
diff changeset
176 repo.svfs(file, 'a').truncate(troffset)
20885
f49d60fa40a5 fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents: 20074
diff changeset
177 if troffset == 0:
f49d60fa40a5 fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents: 20074
diff changeset
178 repo.store.markremoved(file)
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
179 tr.close()
26012
d815a5997576 strip: use the 'finally: tr.release' pattern during stripping
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25874
diff changeset
180 finally:
d815a5997576 strip: use the 'finally: tr.release' pattern during stripping
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25874
diff changeset
181 tr.release()
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
182
15386
6051d8e7e133 strip: backout 73307643a09f (issue3077)
Matt Mackall <mpm@selenic.com>
parents: 15068
diff changeset
183 if saveheads or savebases:
11202
f974fe896921 strip: hide unbundle messages by default
Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
184 ui.note(_("adding branch\n"))
20979
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
185 f = vfs.open(chgrpfile, "rb")
21064
4d9d490d7bbe bundle2: add a ui argument to readbundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21063
diff changeset
186 gen = exchange.readbundle(ui, f, chgrpfile, vfs)
11202
f974fe896921 strip: hide unbundle messages by default
Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
187 if not repo.ui.verbose:
f974fe896921 strip: hide unbundle messages by default
Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
188 # silence internal shuffling chatter
f974fe896921 strip: hide unbundle messages by default
Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
189 repo.ui.pushbuffer()
23898
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
190 if isinstance(gen, bundle2.unbundle20):
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
191 tr = repo.transaction('strip')
24170
fbc4d550a6ab repair: setup hookargs when processing bundle2s
Eric Sumner <ericsumner@fb.com>
parents: 23939
diff changeset
192 tr.hookargs = {'source': 'strip',
fbc4d550a6ab repair: setup hookargs when processing bundle2s
Eric Sumner <ericsumner@fb.com>
parents: 23939
diff changeset
193 'url': 'bundle:' + vfs.join(chgrpfile)}
23898
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
194 try:
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
195 bundle2.processbundle(repo, gen, lambda: tr)
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
196 tr.close()
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
197 finally:
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
198 tr.release()
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
199 else:
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
200 changegroup.addchangegroup(repo, gen, 'strip',
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
201 'bundle:' + vfs.join(chgrpfile),
b21c2e0ee8a3 repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents: 23895
diff changeset
202 True)
11202
f974fe896921 strip: hide unbundle messages by default
Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
203 if not repo.ui.verbose:
f974fe896921 strip: hide unbundle messages by default
Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
204 repo.ui.popbuffer()
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
205 f.close()
13362
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
206
16237
b5c0c7d0f83f repair: remove undo files after strip
Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
207 # remove undo files
20975
37cdf1fca1b2 localrepo: make "undofiles()" return list of tuples "(vfs, relative filename)"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20933
diff changeset
208 for undovfs, undofile in repo.undofiles():
16237
b5c0c7d0f83f repair: remove undo files after strip
Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
209 try:
20975
37cdf1fca1b2 localrepo: make "undofiles()" return list of tuples "(vfs, relative filename)"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20933
diff changeset
210 undovfs.unlink(undofile)
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25652
diff changeset
211 except OSError as e:
16237
b5c0c7d0f83f repair: remove undo files after strip
Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
212 if e.errno != errno.ENOENT:
20975
37cdf1fca1b2 localrepo: make "undofiles()" return list of tuples "(vfs, relative filename)"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20933
diff changeset
213 ui.warn(_('error removing %s: %s\n') %
37cdf1fca1b2 localrepo: make "undofiles()" return list of tuples "(vfs, relative filename)"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20933
diff changeset
214 (undovfs.join(undofile), str(e)))
16237
b5c0c7d0f83f repair: remove undo files after strip
Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
215
13362
ee01d9d84115 bookmarks: move strip support to repair
Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
216 for m in updatebm:
17264
ec7b9bec19c9 strip: move bookmarks to nearest ancestor rather than '.'
Augie Fackler <raf@durin42.com>
parents: 17013
diff changeset
217 bm[m] = repo[newbmtarget].node()
17922
7f5dab94e48c bookmarks: introduce a bmstore to manage bookmark persistence
Augie Fackler <raf@durin42.com>
parents: 17796
diff changeset
218 bm.write()
16705
c2d9ef43ff6c check-code: ignore naked excepts with a "re-raise" comment
Brodie Rao <brodie@sf.io>
parents: 16628
diff changeset
219 except: # re-raises
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
220 if backupfile:
11600
76454cbc11e4 mark ui.warn strings for translation
Martin Geisler <mg@lazybytes.net>
parents: 11333
diff changeset
221 ui.warn(_("strip failed, full bundle stored in '%s'\n")
20979
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
222 % vfs.join(backupfile))
11197
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
223 elif saveheads:
11600
76454cbc11e4 mark ui.warn strings for translation
Martin Geisler <mg@lazybytes.net>
parents: 11333
diff changeset
224 ui.warn(_("strip failed, partial bundle stored in '%s'\n")
20979
ad5b61370514 repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
225 % vfs.join(chgrpfile))
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
226 raise
22057
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
227 else:
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
228 if saveheads or savebases:
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
229 # Remove partial backup only if there were no exceptions
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
230 vfs.unlink(chgrpfile)
4702
18e91c9def0c strip: move strip code to a new repair module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
231
18395
904b7109938e destroyed: drop complex branchcache rebuilt logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 18311
diff changeset
232 repo.destroyed()
25652
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
233
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
234 def rebuildfncache(ui, repo):
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
235 """Rebuilds the fncache file from repo history.
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
236
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
237 Missing entries will be added. Extra entries will be removed.
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
238 """
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
239 repo = repo.unfiltered()
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
240
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
241 if 'fncache' not in repo.requirements:
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
242 ui.warn(_('(not rebuilding fncache because repository does not '
25874
3e84f40232c7 repair: fix typo in warning message
Wagner Bruna <wbruna@yahoo.com>
parents: 25845
diff changeset
243 'support fncache)\n'))
25652
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
244 return
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
245
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
246 lock = repo.lock()
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
247 try:
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
248 fnc = repo.store.fncache
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
249 # Trigger load of fncache.
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
250 if 'irrelevant' in fnc:
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
251 pass
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
252
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
253 oldentries = set(fnc.entries)
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
254 newentries = set()
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
255 seenfiles = set()
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
256
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
257 repolen = len(repo)
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
258 for rev in repo:
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
259 ui.progress(_('changeset'), rev, total=repolen)
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
260
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
261 ctx = repo[rev]
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
262 for f in ctx.files():
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25404
diff changeset
263 # This is to minimize I/O.
2882d6886919 repair: add functionality to rebuild fncache
Gregory Szorc <gregory.szorc@gmail.com>
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264 if f in seenfiles:
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265 continue
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266 seenfiles.add(f)
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267
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268 i = 'data/%s.i' % f
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269 d = 'data/%s.d' % f
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270
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271 if repo.store._exists(i):
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272 newentries.add(i)
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273 if repo.store._exists(d):
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274 newentries.add(d)
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275
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276 ui.progress(_('changeset'), None)
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277
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278 addcount = len(newentries - oldentries)
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279 removecount = len(oldentries - newentries)
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280 for p in sorted(oldentries - newentries):
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281 ui.write(_('removing %s\n') % p)
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282 for p in sorted(newentries - oldentries):
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283 ui.write(_('adding %s\n') % p)
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284
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285 if addcount or removecount:
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286 ui.write(_('%d items added, %d removed from fncache\n') %
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287 (addcount, removecount))
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288 fnc.entries = newentries
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289 fnc._dirty = True
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290
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291 tr = repo.transaction('fncache')
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292 try:
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293 fnc.write(tr)
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294 tr.close()
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295 finally:
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296 tr.release()
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297 else:
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298 ui.write(_('fncache already up to date\n'))
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299 finally:
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300 lock.release()
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301