Mercurial > hg
annotate mercurial/repair.py @ 28359:f6b5b041c6c9
commit: block amend while histedit is in progress (issue4800)
author | timeless <timeless@mozdev.org> |
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date | Sun, 14 Feb 2016 07:35:50 +0000 |
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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 |
10263 | 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 = changegroup.safeversion(repo) |
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26 |
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27 cg = changegroup.changegroupsubset(repo, bases, heads, 'strip', |
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28 version=cgversion) |
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29 backupdir = "strip-backup" |
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30 vfs = repo.vfs |
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31 if not vfs.isdir(backupdir): |
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32 vfs.mkdir(backupdir) |
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33 |
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34 # Include a hash of all the nodes in the filename for uniqueness |
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35 allcommits = repo.set('%ln::%ln', bases, heads) |
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36 allhashes = sorted(c.hex() for c in allcommits) |
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37 totalhash = util.sha1(''.join(allhashes)).hexdigest() |
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38 name = "%s/%s-%s-%s.hg" % (backupdir, short(node), totalhash[:8], suffix) |
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39 |
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40 comp = None |
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41 if cgversion != '01': |
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42 bundletype = "HG20" |
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43 if compress: |
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44 comp = 'BZ' |
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45 elif compress: |
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46 bundletype = "HG10BZ" |
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47 else: |
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48 bundletype = "HG10UN" |
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49 return changegroup.writebundle(repo.ui, cg, name, bundletype, vfs, |
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50 compression=comp) |
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51 |
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52 def _collectfiles(repo, striprev): |
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53 """find out the filelogs affected by the strip""" |
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54 files = set() |
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55 |
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56 for x in xrange(striprev, len(repo)): |
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57 files.update(repo[x].files()) |
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58 |
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59 return sorted(files) |
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60 |
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61 def _collectbrokencsets(repo, files, striprev): |
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62 """return the changesets which will be broken by the truncation""" |
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63 s = set() |
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64 def collectone(revlog): |
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65 _, brokenset = revlog.getstrippoint(striprev) |
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66 s.update([revlog.linkrev(r) for r in brokenset]) |
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67 |
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68 collectone(repo.manifest) |
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69 for fname in files: |
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70 collectone(repo.file(fname)) |
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71 |
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72 return s |
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73 |
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74 def strip(ui, repo, nodelist, backup=True, topic='backup'): |
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75 # This function operates within a transaction of its own, but does |
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76 # not take any lock on the repo. |
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77 # Simple way to maintain backwards compatibility for this |
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78 # argument. |
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79 if backup in ['none', 'strip']: |
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80 backup = False |
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81 |
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82 repo = repo.unfiltered() |
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83 repo.destroying() |
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84 |
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85 cl = repo.changelog |
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86 # TODO handle undo of merge sets |
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87 if isinstance(nodelist, str): |
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88 nodelist = [nodelist] |
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89 striplist = [cl.rev(node) for node in nodelist] |
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90 striprev = min(striplist) |
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91 |
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92 # Some revisions with rev > striprev may not be descendants of striprev. |
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93 # We have to find these revisions and put them in a bundle, so that |
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94 # we can restore them after the truncations. |
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95 # To create the bundle we use repo.changegroupsubset which requires |
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96 # the list of heads and bases of the set of interesting revisions. |
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97 # (head = revision in the set that has no descendant in the set; |
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98 # base = revision in the set that has no ancestor in the set) |
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99 tostrip = set(striplist) |
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100 for rev in striplist: |
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101 for desc in cl.descendants([rev]): |
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102 tostrip.add(desc) |
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103 |
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104 files = _collectfiles(repo, striprev) |
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105 saverevs = _collectbrokencsets(repo, files, striprev) |
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106 |
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107 # compute heads |
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108 saveheads = set(saverevs) |
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109 for r in xrange(striprev + 1, len(cl)): |
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110 if r not in tostrip: |
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111 saverevs.add(r) |
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parents:
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|
112 saveheads.difference_update(cl.parentrevs(r)) |
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113 saveheads.add(r) |
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114 saveheads = [cl.node(r) for r in saveheads] |
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115 |
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116 # compute base nodes |
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117 if saverevs: |
16867
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revlog: descendants(*revs) becomes descendants(revs) (API)
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118 descendants = set(cl.descendants(saverevs)) |
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119 saverevs.difference_update(descendants) |
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120 savebases = [cl.node(r) for r in saverevs] |
16252
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strip: enhance repair.strip to receive a list of nodes (issue3299)
Wagner Bruna <wbruna@softwareexpress.com.br>
parents:
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121 stripbases = [cl.node(r) for r in tostrip] |
18040
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strip: make query to get new bookmark target cheaper
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122 |
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123 # For a set s, max(parents(s) - s) is the same as max(heads(::s - s)), but |
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124 # is much faster |
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|
125 newbmtarget = repo.revs('max(parents(%ld) - (%ld))', tostrip, tostrip) |
17264
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strip: move bookmarks to nearest ancestor rather than '.'
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parents:
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126 if newbmtarget: |
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repair: use `first` instead of direct indexing
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127 newbmtarget = repo[newbmtarget.first()].node() |
17264
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128 else: |
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changeset
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129 newbmtarget = '.' |
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130 |
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131 bm = repo._bookmarks |
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132 updatebm = [] |
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133 for m in bm: |
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134 rev = repo[bm[m]].rev() |
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135 if rev in tostrip: |
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136 updatebm.append(m) |
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137 |
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138 # create a changegroup for all the branches we need to keep |
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139 backupfile = None |
20979
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repair: make "strip()" treat bundle files via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
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140 vfs = repo.vfs |
24252
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repair: define explicit local variable, don't reuse a comprehension variable
Mike Edgar <adgar@google.com>
parents:
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changeset
|
141 node = nodelist[-1] |
22057
445472225ccd
strip: remove -b/--backup codepaths
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents:
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142 if backup: |
16388
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repair: allow giving strip backup a different name
Idan Kamara <idankk86@gmail.com>
parents:
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changeset
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143 backupfile = _bundle(repo, stripbases, cl.heads(), node, topic) |
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144 repo.ui.status(_("saved backup bundle to %s\n") % |
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145 vfs.join(backupfile)) |
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146 repo.ui.log("backupbundle", "saved backup bundle to %s\n", |
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repair: make "strip()" treat bundle files via vfs
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147 vfs.join(backupfile)) |
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148 if saveheads or savebases: |
11791
00cde9bddbe4
repair: do not compress partial bundle if we do not keep it on disk
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parents:
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149 # do not compress partial bundle if we remove it from disk later |
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150 chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp', |
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strip: remove -b/--backup codepaths
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changeset
|
151 compress=False) |
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152 |
8073
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strip: make repair.strip transactional to avoid repository corruption
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153 mfst = repo.manifest |
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154 |
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repair: forbid strip from inside a transaction
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155 curtr = repo.currenttransaction() |
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156 if curtr is not None: |
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157 del curtr # avoid carrying reference to transaction for nothing |
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158 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
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changeset
|
159 raise error.Abort(msg, hint=_('contact your extension maintainer')) |
25300
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160 |
27873
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with: use context manager for transaction in strip
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parents:
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diff
changeset
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161 try: |
60ea60fea5f3
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162 with repo.transaction("strip") as tr: |
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|
163 offset = len(tr.entries) |
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164 |
27873
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165 tr.startgroup() |
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166 cl.strip(striprev, tr) |
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167 mfst.strip(striprev, tr) |
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168 for fn in files: |
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|
169 repo.file(fn).strip(striprev, tr) |
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170 tr.endgroup() |
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171 |
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172 for i in xrange(offset, len(tr.entries)): |
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|
173 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
|
174 repo.svfs(file, 'a').truncate(troffset) |
20885
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
20074
diff
changeset
|
175 if troffset == 0: |
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
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changeset
|
176 repo.store.markremoved(file) |
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|
177 |
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changeset
|
178 if saveheads or savebases: |
11202
f974fe896921
strip: hide unbundle messages by default
Matt Mackall <mpm@selenic.com>
parents:
11200
diff
changeset
|
179 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
|
180 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
|
181 gen = exchange.readbundle(ui, f, chgrpfile, vfs) |
11202
f974fe896921
strip: hide unbundle messages by default
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diff
changeset
|
182 if not repo.ui.verbose: |
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11200
diff
changeset
|
183 # silence internal shuffling chatter |
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diff
changeset
|
184 repo.ui.pushbuffer() |
23898
b21c2e0ee8a3
repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents:
23895
diff
changeset
|
185 if isinstance(gen, bundle2.unbundle20): |
27875
add2ba16430e
with: use context manager for transaction in strip
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parents:
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changeset
|
186 with repo.transaction('strip') as tr: |
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changeset
|
187 tr.hookargs = {'source': 'strip', |
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|
188 'url': 'bundle:' + vfs.join(chgrpfile)} |
26797
75d550b7d8f5
strip: pass source and url to bundle2 processing
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parents:
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changeset
|
189 bundle2.applybundle(repo, gen, tr, source='strip', |
75d550b7d8f5
strip: pass source and url to bundle2 processing
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parents:
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changeset
|
190 url='bundle:' + vfs.join(chgrpfile)) |
23898
b21c2e0ee8a3
repair: add experimental option to write bundle2 files
Eric Sumner <ericsumner@fb.com>
parents:
23895
diff
changeset
|
191 else: |
26701
b1a0c534d9b4
repair: use cg?unpacker.apply() instead of changegroup.addchangegroup()
Augie Fackler <augie@google.com>
parents:
26624
diff
changeset
|
192 gen.apply(repo, 'strip', 'bundle:' + vfs.join(chgrpfile), True) |
11202
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parents:
11200
diff
changeset
|
193 if not repo.ui.verbose: |
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|
194 repo.ui.popbuffer() |
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195 f.close() |
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changeset
|
196 |
27157
5f2e4eb08e41
repair: use bookmarks.recordchange instead of bookmarks.write
Laurent Charignon <lcharignon@fb.com>
parents:
26797
diff
changeset
|
197 for m in updatebm: |
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repair: use bookmarks.recordchange instead of bookmarks.write
Laurent Charignon <lcharignon@fb.com>
parents:
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changeset
|
198 bm[m] = repo[newbmtarget].node() |
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changeset
|
199 lock = tr = None |
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parents:
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changeset
|
200 try: |
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changeset
|
201 lock = repo.lock() |
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changeset
|
202 tr = repo.transaction('repair') |
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changeset
|
203 bm.recordchange(tr) |
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changeset
|
204 tr.close() |
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parents:
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changeset
|
205 finally: |
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parents:
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changeset
|
206 tr.release() |
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changeset
|
207 lock.release() |
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changeset
|
208 |
16237
b5c0c7d0f83f
repair: remove undo files after strip
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parents:
15901
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changeset
|
209 # 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
|
210 for undovfs, undofile in repo.undofiles(): |
16237
b5c0c7d0f83f
repair: remove undo files after strip
Idan Kamara <idankk86@gmail.com>
parents:
15901
diff
changeset
|
211 try: |
20975
37cdf1fca1b2
localrepo: make "undofiles()" return list of tuples "(vfs, relative filename)"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
20933
diff
changeset
|
212 undovfs.unlink(undofile) |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25652
diff
changeset
|
213 except OSError as e: |
16237
b5c0c7d0f83f
repair: remove undo files after strip
Idan Kamara <idankk86@gmail.com>
parents:
15901
diff
changeset
|
214 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
|
215 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:
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diff
changeset
|
216 (undovfs.join(undofile), str(e))) |
16237
b5c0c7d0f83f
repair: remove undo files after strip
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changeset
|
217 |
16705
c2d9ef43ff6c
check-code: ignore naked excepts with a "re-raise" comment
Brodie Rao <brodie@sf.io>
parents:
16628
diff
changeset
|
218 except: # re-raises |
11197
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parents:
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diff
changeset
|
219 if backupfile: |
11600
76454cbc11e4
mark ui.warn strings for translation
Martin Geisler <mg@lazybytes.net>
parents:
11333
diff
changeset
|
220 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
|
221 % vfs.join(backupfile)) |
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parents:
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changeset
|
222 elif saveheads: |
11600
76454cbc11e4
mark ui.warn strings for translation
Martin Geisler <mg@lazybytes.net>
parents:
11333
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223 ui.warn(_("strip failed, partial bundle stored in '%s'\n") |
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224 % vfs.join(chgrpfile)) |
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225 raise |
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226 else: |
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227 if saveheads or savebases: |
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228 # Remove partial backup only if there were no exceptions |
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229 vfs.unlink(chgrpfile) |
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230 |
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231 repo.destroyed() |
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232 |
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233 def rebuildfncache(ui, repo): |
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234 """Rebuilds the fncache file from repo history. |
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235 |
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236 Missing entries will be added. Extra entries will be removed. |
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237 """ |
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238 repo = repo.unfiltered() |
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239 |
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240 if 'fncache' not in repo.requirements: |
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241 ui.warn(_('(not rebuilding fncache because repository does not ' |
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242 'support fncache)\n')) |
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243 return |
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244 |
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245 with repo.lock(): |
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246 fnc = repo.store.fncache |
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247 # Trigger load of fncache. |
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248 if 'irrelevant' in fnc: |
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249 pass |
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250 |
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251 oldentries = set(fnc.entries) |
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252 newentries = set() |
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253 seenfiles = set() |
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254 |
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255 repolen = len(repo) |
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256 for rev in repo: |
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257 ui.progress(_('changeset'), rev, total=repolen) |
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258 |
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259 ctx = repo[rev] |
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260 for f in ctx.files(): |
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261 # This is to minimize I/O. |
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262 if f in seenfiles: |
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263 continue |
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264 seenfiles.add(f) |
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265 |
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266 i = 'data/%s.i' % f |
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267 d = 'data/%s.d' % f |
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268 |
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269 if repo.store._exists(i): |
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270 newentries.add(i) |
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271 if repo.store._exists(d): |
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272 newentries.add(d) |
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273 |
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274 ui.progress(_('changeset'), None) |
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275 |
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276 if 'treemanifest' in repo.requirements: # safe but unnecessary otherwise |
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277 for dir in util.dirs(seenfiles): |
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278 i = 'meta/%s/00manifest.i' % dir |
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279 d = 'meta/%s/00manifest.d' % dir |
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280 |
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281 if repo.store._exists(i): |
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282 newentries.add(i) |
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283 if repo.store._exists(d): |
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284 newentries.add(d) |
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285 |
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286 addcount = len(newentries - oldentries) |
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287 removecount = len(oldentries - newentries) |
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288 for p in sorted(oldentries - newentries): |
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289 ui.write(_('removing %s\n') % p) |
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290 for p in sorted(newentries - oldentries): |
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291 ui.write(_('adding %s\n') % p) |
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292 |
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293 if addcount or removecount: |
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294 ui.write(_('%d items added, %d removed from fncache\n') % |
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295 (addcount, removecount)) |
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296 fnc.entries = newentries |
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297 fnc._dirty = True |
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298 |
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299 with repo.transaction('fncache') as tr: |
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300 fnc.write(tr) |
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301 else: |
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302 ui.write(_('fncache already up to date\n')) |
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303 |
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304 def stripbmrevset(repo, mark): |
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305 """ |
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306 The revset to strip when strip is called with -B mark |
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307 |
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308 Needs to live here so extensions can use it and wrap it even when strip is |
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309 not enabled or not present on a box. |
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310 """ |
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311 return repo.revs("ancestors(bookmark(%s)) - " |
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312 "ancestors(head() and not bookmark(%s)) - " |
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313 "ancestors(bookmark() and not bookmark(%s))", |
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314 mark, mark, mark) |