annotate mercurial/repair.py @ 22057:445472225ccd

strip: remove -b/--backup codepaths cset ba3bc6474bbf has removed this option. This commit just tidies the code that was associated to it. It also fixes the internal calls to the strip() function. Before this change, any function that thought it would want as a final safety to keep a partial backup bundle (bundling changes not linearly related to the current change being stripped), had to explicitly pass a backup="strip" option. With this change, these backups are always kept in case of an exception and always removed if there is no exception. Only full backups can be specified with backup=True or no full backups with backup=False.
author Jordi Gutiérrez Hermoso <jordigh@octave.org>
date Thu, 24 Jul 2014 15:06:08 -0400
parents 4d9d490d7bbe
children d7b114493315
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 mercurial import changegroup, exchange
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10 from mercurial.node import short
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11 from mercurial.i18n import _
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12 import errno
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13
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14 def _bundle(repo, bases, heads, node, suffix, compress=True):
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15 """create a bundle with the specified revisions as a backup"""
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16 cg = changegroup.changegroupsubset(repo, bases, heads, 'strip')
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17 backupdir = "strip-backup"
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18 vfs = repo.vfs
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19 if not vfs.isdir(backupdir):
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20 vfs.mkdir(backupdir)
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21 name = "%s/%s-%s.hg" % (backupdir, short(node), suffix)
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22 if compress:
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23 bundletype = "HG10BZ"
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24 else:
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25 bundletype = "HG10UN"
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26 return changegroup.writebundle(cg, name, bundletype, vfs)
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27
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28 def _collectfiles(repo, striprev):
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29 """find out the filelogs affected by the strip"""
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30 files = set()
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31
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32 for x in xrange(striprev, len(repo)):
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33 files.update(repo[x].files())
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34
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35 return sorted(files)
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36
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37 def _collectbrokencsets(repo, files, striprev):
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38 """return the changesets which will be broken by the truncation"""
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39 s = set()
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40 def collectone(revlog):
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41 _, brokenset = revlog.getstrippoint(striprev)
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42 s.update([revlog.linkrev(r) for r in brokenset])
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43
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44 collectone(repo.manifest)
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45 for fname in files:
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46 collectone(repo.file(fname))
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47
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48 return s
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49
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50 def strip(ui, repo, nodelist, backup=True, topic='backup'):
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51
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52 # Simple way to maintain backwards compatibility for this
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53 # argument.
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54 if backup in ['none', 'strip']:
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55 backup = False
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56
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57 repo = repo.unfiltered()
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58 repo.destroying()
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59
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60 cl = repo.changelog
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61 # TODO handle undo of merge sets
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62 if isinstance(nodelist, str):
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63 nodelist = [nodelist]
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64 striplist = [cl.rev(node) for node in nodelist]
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65 striprev = min(striplist)
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66
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67 # Some revisions with rev > striprev may not be descendants of striprev.
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68 # We have to find these revisions and put them in a bundle, so that
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69 # we can restore them after the truncations.
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70 # To create the bundle we use repo.changegroupsubset which requires
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71 # the list of heads and bases of the set of interesting revisions.
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72 # (head = revision in the set that has no descendant in the set;
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73 # base = revision in the set that has no ancestor in the set)
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74 tostrip = set(striplist)
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75 for rev in striplist:
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76 for desc in cl.descendants([rev]):
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77 tostrip.add(desc)
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78
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79 files = _collectfiles(repo, striprev)
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80 saverevs = _collectbrokencsets(repo, files, striprev)
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81
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82 # compute heads
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83 saveheads = set(saverevs)
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84 for r in xrange(striprev + 1, len(cl)):
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85 if r not in tostrip:
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86 saverevs.add(r)
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87 saveheads.difference_update(cl.parentrevs(r))
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88 saveheads.add(r)
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89 saveheads = [cl.node(r) for r in saveheads]
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90
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91 # compute base nodes
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92 if saverevs:
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93 descendants = set(cl.descendants(saverevs))
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94 saverevs.difference_update(descendants)
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95 savebases = [cl.node(r) for r in saverevs]
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96 stripbases = [cl.node(r) for r in tostrip]
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97
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98 # For a set s, max(parents(s) - s) is the same as max(heads(::s - s)), but
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99 # is much faster
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100 newbmtarget = repo.revs('max(parents(%ld) - (%ld))', tostrip, tostrip)
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101 if newbmtarget:
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102 newbmtarget = repo[newbmtarget[0]].node()
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103 else:
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104 newbmtarget = '.'
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105
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106 bm = repo._bookmarks
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107 updatebm = []
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108 for m in bm:
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109 rev = repo[bm[m]].rev()
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110 if rev in tostrip:
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111 updatebm.append(m)
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112
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113 # create a changegroup for all the branches we need to keep
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114 backupfile = None
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115 vfs = repo.vfs
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116 if backup:
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117 backupfile = _bundle(repo, stripbases, cl.heads(), node, topic)
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118 repo.ui.status(_("saved backup bundle to %s\n") %
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119 vfs.join(backupfile))
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120 repo.ui.log("backupbundle", "saved backup bundle to %s\n",
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121 vfs.join(backupfile))
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122 if saveheads or savebases:
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123 # do not compress partial bundle if we remove it from disk later
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124 chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp',
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
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125 compress=False)
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Matt Mackall <mpm@selenic.com>
parents:
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126
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Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
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127 mfst = repo.manifest
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parents: 7361
diff changeset
128
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a685011ed38e localrepo: add desc parameter to transaction
Steve Borho <steve@borho.org>
parents: 10263
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129 tr = repo.transaction("strip")
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Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
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130 offset = len(tr.entries)
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parents: 7361
diff changeset
131
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parents: 10881
diff changeset
132 try:
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Matt Mackall <mpm@selenic.com>
parents: 10881
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133 tr.startgroup()
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
134 cl.strip(striprev, tr)
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
135 mfst.strip(striprev, tr)
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parents: 10881
diff changeset
136 for fn in files:
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
137 repo.file(fn).strip(striprev, tr)
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parents: 10881
diff changeset
138 tr.endgroup()
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Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
139
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
140 try:
4bb4895e1693 strip: be quiet about temporary internal bundle
Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
141 for i in xrange(offset, len(tr.entries)):
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
142 file, troffset, ignore = tr.entries[i]
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
143 repo.sopener(file, 'a').truncate(troffset)
20885
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Durham Goode <durham@fb.com>
parents: 20074
diff changeset
144 if troffset == 0:
f49d60fa40a5 fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents: 20074
diff changeset
145 repo.store.markremoved(file)
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
146 tr.close()
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Brodie Rao <brodie@sf.io>
parents: 16628
diff changeset
147 except: # re-raises
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parents: 10881
diff changeset
148 tr.abort()
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
149 raise
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
150
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Matt Mackall <mpm@selenic.com>
parents: 15068
diff changeset
151 if saveheads or savebases:
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Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
152 ui.note(_("adding branch\n"))
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
153 f = vfs.open(chgrpfile, "rb")
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21063
diff changeset
154 gen = exchange.readbundle(ui, f, chgrpfile, vfs)
11202
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Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
155 if not repo.ui.verbose:
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parents: 11200
diff changeset
156 # silence internal shuffling chatter
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parents: 11200
diff changeset
157 repo.ui.pushbuffer()
20933
d3775db748a0 localrepo: move the addchangegroup method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20927
diff changeset
158 changegroup.addchangegroup(repo, gen, 'strip',
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
159 'bundle:' + vfs.join(chgrpfile), True)
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Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
160 if not repo.ui.verbose:
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Matt Mackall <mpm@selenic.com>
parents: 11200
diff changeset
161 repo.ui.popbuffer()
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parents: 10881
diff changeset
162 f.close()
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Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
163
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Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
164 # remove undo files
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20933
diff changeset
165 for undovfs, undofile in repo.undofiles():
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Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
166 try:
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20933
diff changeset
167 undovfs.unlink(undofile)
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Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
168 except OSError, e:
b5c0c7d0f83f repair: remove undo files after strip
Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
169 if e.errno != errno.ENOENT:
20975
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20933
diff changeset
170 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
171 (undovfs.join(undofile), str(e)))
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Idan Kamara <idankk86@gmail.com>
parents: 15901
diff changeset
172
13362
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Matt Mackall <mpm@selenic.com>
parents: 12057
diff changeset
173 for m in updatebm:
17264
ec7b9bec19c9 strip: move bookmarks to nearest ancestor rather than '.'
Augie Fackler <raf@durin42.com>
parents: 17013
diff changeset
174 bm[m] = repo[newbmtarget].node()
17922
7f5dab94e48c bookmarks: introduce a bmstore to manage bookmark persistence
Augie Fackler <raf@durin42.com>
parents: 17796
diff changeset
175 bm.write()
16705
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Brodie Rao <brodie@sf.io>
parents: 16628
diff changeset
176 except: # re-raises
11197
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
177 if backupfile:
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Martin Geisler <mg@lazybytes.net>
parents: 11333
diff changeset
178 ui.warn(_("strip failed, full bundle stored in '%s'\n")
20979
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
179 % vfs.join(backupfile))
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Matt Mackall <mpm@selenic.com>
parents: 10881
diff changeset
180 elif saveheads:
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Martin Geisler <mg@lazybytes.net>
parents: 11333
diff changeset
181 ui.warn(_("strip failed, partial bundle stored in '%s'\n")
20979
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20977
diff changeset
182 % vfs.join(chgrpfile))
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Henrik Stuart <henrik.stuart@edlund.dk>
parents: 7361
diff changeset
183 raise
22057
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
184 else:
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
185 if saveheads or savebases:
445472225ccd strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 21064
diff changeset
186 # 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
187 vfs.unlink(chgrpfile)
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Matt Mackall <mpm@selenic.com>
parents:
diff changeset
188
18395
904b7109938e destroyed: drop complex branchcache rebuilt logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 18311
diff changeset
189 repo.destroyed()