Mercurial > hg
annotate mercurial/repair.py @ 11148:a912f26777d3
merge: introduce tool.check parameter
tool.check is a list of check options, and can be used in place of
tool.checkchanged and tool.checkconflicts:
Equivalences:
tool.checkchanged = yes
tool.checkconflicts = no
tool.check = changed
tool.checkchanged = no
tool.checkconflicts = yes
tool.check = conflicts
tool.checkchanged = yes
tool.checkconflicts = yes
tool.check = changed, conflicts
Add _toollist() wrapper for ui.configlist() to implement this consistently.
checkchanged and checkconflicts are still supported, but check is
preferred for implementing new check options.
author | David Champion <dgc@uchicago.edu> |
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date | Mon, 10 May 2010 11:04:56 -0500 |
parents | a685011ed38e |
children | 4bb4895e1693 |
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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 import changegroup |
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10 from node import nullrev, short |
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11 from i18n import _ |
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12 import os |
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13 |
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14 def _bundle(repo, bases, heads, node, suffix, extranodes=None): |
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15 """create a bundle with the specified revisions as a backup""" |
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16 cg = repo.changegroupsubset(bases, heads, 'strip', extranodes) |
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17 backupdir = repo.join("strip-backup") |
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18 if not os.path.isdir(backupdir): |
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19 os.mkdir(backupdir) |
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20 name = os.path.join(backupdir, "%s-%s" % (short(node), suffix)) |
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21 repo.ui.warn(_("saving bundle to %s\n") % name) |
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22 return changegroup.writebundle(cg, name, "HG10BZ") |
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23 |
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24 def _collectfiles(repo, striprev): |
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25 """find out the filelogs affected by the strip""" |
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26 files = set() |
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27 |
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28 for x in xrange(striprev, len(repo)): |
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29 files.update(repo[x].files()) |
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30 |
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31 return sorted(files) |
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32 |
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33 def _collectextranodes(repo, files, link): |
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34 """return the nodes that have to be saved before the strip""" |
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35 def collectone(revlog): |
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36 extra = [] |
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37 startrev = count = len(revlog) |
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38 # find the truncation point of the revlog |
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39 for i in xrange(count): |
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40 lrev = revlog.linkrev(i) |
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41 if lrev >= link: |
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42 startrev = i + 1 |
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43 break |
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44 |
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45 # see if any revision after that point has a linkrev less than link |
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46 # (we have to manually save these guys) |
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47 for i in xrange(startrev, count): |
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48 node = revlog.node(i) |
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49 lrev = revlog.linkrev(i) |
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50 if lrev < link: |
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51 extra.append((node, cl.node(lrev))) |
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52 |
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53 return extra |
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54 |
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55 extranodes = {} |
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56 cl = repo.changelog |
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57 extra = collectone(repo.manifest) |
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58 if extra: |
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59 extranodes[1] = extra |
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60 for fname in files: |
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61 f = repo.file(fname) |
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62 extra = collectone(f) |
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63 if extra: |
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64 extranodes[fname] = extra |
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65 |
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66 return extranodes |
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67 |
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68 def strip(ui, repo, node, backup="all"): |
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69 cl = repo.changelog |
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70 # TODO delete the undo files, and handle undo of merge sets |
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71 striprev = cl.rev(node) |
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72 |
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73 # Some revisions with rev > striprev may not be descendants of striprev. |
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74 # We have to find these revisions and put them in a bundle, so that |
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75 # we can restore them after the truncations. |
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76 # To create the bundle we use repo.changegroupsubset which requires |
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77 # the list of heads and bases of the set of interesting revisions. |
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78 # (head = revision in the set that has no descendant in the set; |
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79 # base = revision in the set that has no ancestor in the set) |
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80 tostrip = set((striprev,)) |
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81 saveheads = set() |
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82 savebases = [] |
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83 for r in xrange(striprev + 1, len(cl)): |
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84 parents = cl.parentrevs(r) |
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85 if parents[0] in tostrip or parents[1] in tostrip: |
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86 # r is a descendant of striprev |
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87 tostrip.add(r) |
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88 # if this is a merge and one of the parents does not descend |
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89 # from striprev, mark that parent as a savehead. |
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90 if parents[1] != nullrev: |
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91 for p in parents: |
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92 if p not in tostrip and p > striprev: |
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93 saveheads.add(p) |
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94 else: |
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95 # if no parents of this revision will be stripped, mark it as |
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96 # a savebase |
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97 if parents[0] < striprev and parents[1] < striprev: |
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98 savebases.append(cl.node(r)) |
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99 |
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100 saveheads.difference_update(parents) |
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101 saveheads.add(r) |
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102 |
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103 saveheads = [cl.node(r) for r in saveheads] |
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104 files = _collectfiles(repo, striprev) |
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105 |
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106 extranodes = _collectextranodes(repo, files, striprev) |
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107 |
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108 # create a changegroup for all the branches we need to keep |
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109 if backup == "all": |
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110 _bundle(repo, [node], cl.heads(), node, 'backup') |
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111 if saveheads or extranodes: |
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112 chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp', |
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113 extranodes) |
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114 |
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115 mfst = repo.manifest |
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116 |
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117 tr = repo.transaction("strip") |
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118 offset = len(tr.entries) |
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119 |
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120 tr.startgroup() |
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121 cl.strip(striprev, tr) |
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122 mfst.strip(striprev, tr) |
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123 for fn in files: |
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124 repo.file(fn).strip(striprev, tr) |
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125 tr.endgroup() |
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126 |
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127 try: |
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128 for i in xrange(offset, len(tr.entries)): |
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129 file, troffset, ignore = tr.entries[i] |
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130 repo.sopener(file, 'a').truncate(troffset) |
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131 tr.close() |
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132 except: |
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133 tr.abort() |
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134 raise |
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135 |
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136 if saveheads or extranodes: |
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137 ui.status(_("adding branch\n")) |
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138 f = open(chgrpfile, "rb") |
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139 gen = changegroup.readbundle(f, chgrpfile) |
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140 repo.addchangegroup(gen, 'strip', 'bundle:' + chgrpfile, True) |
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141 f.close() |
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142 if backup != "strip": |
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143 os.unlink(chgrpfile) |
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144 |
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145 repo.destroyed() |