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@@ -1,384 +1,384 b'' | |||
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1 | 1 | # verify.py - repository integrity checking for Mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2006, 2007 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms of the |
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6 | 6 | # GNU General Public License version 2 or any later version. |
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7 | 7 | |
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8 | 8 | from __future__ import absolute_import |
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9 | 9 | |
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10 | 10 | import os |
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11 | 11 | |
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12 | 12 | from .i18n import _ |
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13 | 13 | from .node import ( |
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14 | 14 | nullid, |
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15 | 15 | short, |
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16 | 16 | ) |
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17 | 17 | |
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18 | 18 | from . import ( |
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19 | 19 | error, |
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20 | 20 | revlog, |
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21 | 21 | util, |
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22 | 22 | ) |
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23 | 23 | |
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24 | 24 | def verify(repo): |
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25 | 25 | with repo.lock(): |
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26 | 26 | return verifier(repo).verify() |
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27 | 27 | |
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28 | 28 | def _normpath(f): |
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29 | 29 | # under hg < 2.4, convert didn't sanitize paths properly, so a |
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30 | 30 | # converted repo may contain repeated slashes |
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31 | 31 | while '//' in f: |
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32 | 32 | f = f.replace('//', '/') |
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33 | 33 | return f |
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34 | 34 | |
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35 | 35 | def _validpath(repo, path): |
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36 | 36 | """Returns False if a path should NOT be treated as part of a repo. |
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37 | 37 | |
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38 | 38 | For all in-core cases, this returns True, as we have no way for a |
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39 | 39 | path to be mentioned in the history but not actually be |
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40 | 40 | relevant. For narrow clones, this is important because many |
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41 | 41 | filelogs will be missing, and changelog entries may mention |
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42 | 42 | modified files that are outside the narrow scope. |
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43 | 43 | """ |
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44 | 44 | return True |
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45 | 45 | |
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46 | 46 | class verifier(object): |
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47 | 47 | def __init__(self, repo): |
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48 | 48 | self.repo = repo.unfiltered() |
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49 | 49 | self.ui = repo.ui |
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50 | 50 | self.badrevs = set() |
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51 | 51 | self.errors = 0 |
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52 | 52 | self.warnings = 0 |
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53 | 53 | self.havecl = len(repo.changelog) > 0 |
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54 | 54 | self.havemf = len(repo.manifest) > 0 |
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55 | 55 | self.revlogv1 = repo.changelog.version != revlog.REVLOGV0 |
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56 | 56 | self.lrugetctx = util.lrucachefunc(repo.changectx) |
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57 | 57 | self.refersmf = False |
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58 | 58 | self.fncachewarned = False |
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59 | 59 | |
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60 | 60 | def warn(self, msg): |
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61 | 61 | self.ui.warn(msg + "\n") |
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62 | 62 | self.warnings += 1 |
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63 | 63 | |
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64 | 64 | def err(self, linkrev, msg, filename=None): |
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65 | 65 | if linkrev is not None: |
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66 | 66 | self.badrevs.add(linkrev) |
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67 | 67 | else: |
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68 | 68 | linkrev = '?' |
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69 | 69 | msg = "%s: %s" % (linkrev, msg) |
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70 | 70 | if filename: |
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71 | 71 | msg = "%s@%s" % (filename, msg) |
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72 | 72 | self.ui.warn(" " + msg + "\n") |
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73 | 73 | self.errors += 1 |
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74 | 74 | |
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75 | 75 | def exc(self, linkrev, msg, inst, filename=None): |
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76 | 76 | if not str(inst): |
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77 | 77 | inst = repr(inst) |
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78 | 78 | self.err(linkrev, "%s: %s" % (msg, inst), filename) |
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79 | 79 | |
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80 | 80 | def checklog(self, obj, name, linkrev): |
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81 | 81 | if not len(obj) and (self.havecl or self.havemf): |
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82 | 82 | self.err(linkrev, _("empty or missing %s") % name) |
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83 | 83 | return |
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84 | 84 | |
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85 | 85 | d = obj.checksize() |
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86 | 86 | if d[0]: |
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87 | 87 | self.err(None, _("data length off by %d bytes") % d[0], name) |
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88 | 88 | if d[1]: |
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89 | 89 | self.err(None, _("index contains %d extra bytes") % d[1], name) |
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90 | 90 | |
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91 | 91 | if obj.version != revlog.REVLOGV0: |
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92 | 92 | if not self.revlogv1: |
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93 | 93 | self.warn(_("warning: `%s' uses revlog format 1") % name) |
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94 | 94 | elif self.revlogv1: |
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95 | 95 | self.warn(_("warning: `%s' uses revlog format 0") % name) |
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96 | 96 | |
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97 | 97 | def checkentry(self, obj, i, node, seen, linkrevs, f): |
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98 | 98 | lr = obj.linkrev(obj.rev(node)) |
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99 | 99 | if lr < 0 or (self.havecl and lr not in linkrevs): |
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100 | 100 | if lr < 0 or lr >= len(self.repo.changelog): |
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101 | 101 | msg = _("rev %d points to nonexistent changeset %d") |
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102 | 102 | else: |
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103 | 103 | msg = _("rev %d points to unexpected changeset %d") |
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104 | 104 | self.err(None, msg % (i, lr), f) |
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105 | 105 | if linkrevs: |
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106 | 106 | if f and len(linkrevs) > 1: |
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107 | 107 | try: |
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108 | 108 | # attempt to filter down to real linkrevs |
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109 | 109 | linkrevs = [l for l in linkrevs |
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110 | 110 | if self.lrugetctx(l)[f].filenode() == node] |
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111 | 111 | except Exception: |
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112 | 112 | pass |
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113 | 113 | self.warn(_(" (expected %s)") % " ".join(map(str, linkrevs))) |
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114 | 114 | lr = None # can't be trusted |
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115 | 115 | |
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116 | 116 | try: |
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117 | 117 | p1, p2 = obj.parents(node) |
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118 | 118 | if p1 not in seen and p1 != nullid: |
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119 | 119 | self.err(lr, _("unknown parent 1 %s of %s") % |
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120 | 120 | (short(p1), short(node)), f) |
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121 | 121 | if p2 not in seen and p2 != nullid: |
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122 | 122 | self.err(lr, _("unknown parent 2 %s of %s") % |
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123 | 123 | (short(p2), short(node)), f) |
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124 | 124 | except Exception as inst: |
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125 | 125 | self.exc(lr, _("checking parents of %s") % short(node), inst, f) |
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126 | 126 | |
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127 | 127 | if node in seen: |
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128 | 128 | self.err(lr, _("duplicate revision %d (%d)") % (i, seen[node]), f) |
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129 | 129 | seen[node] = i |
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130 | 130 | return lr |
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131 | 131 | |
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132 | 132 | def verify(self): |
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133 | 133 | repo = self.repo |
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134 | 134 | |
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135 | 135 | ui = repo.ui |
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136 | 136 | |
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137 | 137 | if not repo.url().startswith('file:'): |
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138 | 138 | raise error.Abort(_("cannot verify bundle or remote repos")) |
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139 | 139 | |
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140 | 140 | if os.path.exists(repo.sjoin("journal")): |
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141 | 141 | ui.warn(_("abandoned transaction found - run hg recover\n")) |
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142 | 142 | |
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143 | 143 | if ui.verbose or not self.revlogv1: |
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144 | 144 | ui.status(_("repository uses revlog format %d\n") % |
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145 | 145 | (self.revlogv1 and 1 or 0)) |
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146 | 146 | |
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147 | 147 | mflinkrevs, filelinkrevs = self._verifychangelog() |
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148 | 148 | |
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149 | 149 | filenodes = self._verifymanifest(mflinkrevs) |
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150 | 150 | |
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151 | 151 | self._crosscheckfiles(mflinkrevs, filelinkrevs, filenodes) |
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152 | del mflinkrevs | |
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152 | 153 | |
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153 | 154 | totalfiles, filerevisions = self._verifyfiles(filenodes, filelinkrevs) |
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154 | 155 | |
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155 | 156 | ui.status(_("%d files, %d changesets, %d total revisions\n") % |
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156 | 157 | (totalfiles, len(repo.changelog), filerevisions)) |
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157 | 158 | if self.warnings: |
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158 | 159 | ui.warn(_("%d warnings encountered!\n") % self.warnings) |
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159 | 160 | if self.fncachewarned: |
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160 | 161 | ui.warn(_('hint: run "hg debugrebuildfncache" to recover from ' |
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161 | 162 | 'corrupt fncache\n')) |
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162 | 163 | if self.errors: |
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163 | 164 | ui.warn(_("%d integrity errors encountered!\n") % self.errors) |
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164 | 165 | if self.badrevs: |
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165 | 166 | ui.warn(_("(first damaged changeset appears to be %d)\n") |
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166 | 167 | % min(self.badrevs)) |
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167 | 168 | return 1 |
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168 | 169 | |
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169 | 170 | def _verifychangelog(self): |
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170 | 171 | ui = self.ui |
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171 | 172 | repo = self.repo |
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172 | 173 | cl = repo.changelog |
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173 | 174 | |
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174 | 175 | ui.status(_("checking changesets\n")) |
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175 | 176 | mflinkrevs = {} |
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176 | 177 | filelinkrevs = {} |
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177 | 178 | seen = {} |
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178 | 179 | self.checklog(cl, "changelog", 0) |
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179 | 180 | total = len(repo) |
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180 | 181 | for i in repo: |
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181 | 182 | ui.progress(_('checking'), i, total=total, unit=_('changesets')) |
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182 | 183 | n = cl.node(i) |
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183 | 184 | self.checkentry(cl, i, n, seen, [i], "changelog") |
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184 | 185 | |
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185 | 186 | try: |
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186 | 187 | changes = cl.read(n) |
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187 | 188 | if changes[0] != nullid: |
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188 | 189 | mflinkrevs.setdefault(changes[0], []).append(i) |
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189 | 190 | self.refersmf = True |
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190 | 191 | for f in changes[3]: |
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191 | 192 | if _validpath(repo, f): |
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192 | 193 | filelinkrevs.setdefault(_normpath(f), []).append(i) |
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193 | 194 | except Exception as inst: |
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194 | 195 | self.refersmf = True |
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195 | 196 | self.exc(i, _("unpacking changeset %s") % short(n), inst) |
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196 | 197 | ui.progress(_('checking'), None) |
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197 | 198 | return mflinkrevs, filelinkrevs |
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198 | 199 | |
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199 | 200 | def _verifymanifest(self, mflinkrevs): |
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200 | 201 | repo = self.repo |
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201 | 202 | ui = self.ui |
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202 | 203 | mf = self.repo.manifest |
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203 | 204 | |
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204 | 205 | ui.status(_("checking manifests\n")) |
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205 | 206 | filenodes = {} |
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206 | 207 | seen = {} |
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207 | 208 | if self.refersmf: |
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208 | 209 | # Do not check manifest if there are only changelog entries with |
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209 | 210 | # null manifests. |
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210 | 211 | self.checklog(mf, "manifest", 0) |
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211 | 212 | total = len(mf) |
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212 | 213 | for i in mf: |
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213 | 214 | ui.progress(_('checking'), i, total=total, unit=_('manifests')) |
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214 | 215 | n = mf.node(i) |
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215 | 216 | lr = self.checkentry(mf, i, n, seen, mflinkrevs.get(n, []), |
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216 | 217 | "manifest") |
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217 | 218 | if n in mflinkrevs: |
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218 | 219 | del mflinkrevs[n] |
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219 | 220 | else: |
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220 | 221 | self.err(lr, _("%s not in changesets") % short(n), "manifest") |
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221 | 222 | |
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222 | 223 | try: |
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223 | 224 | for f, fn in mf.readdelta(n).iteritems(): |
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224 | 225 | if not f: |
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225 | 226 | self.err(lr, _("file without name in manifest")) |
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226 | 227 | elif f != "/dev/null": # ignore this in very old repos |
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227 | 228 | if _validpath(repo, f): |
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228 | 229 | filenodes.setdefault( |
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229 | 230 | _normpath(f), {}).setdefault(fn, lr) |
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230 | 231 | except Exception as inst: |
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231 | 232 | self.exc(lr, _("reading manifest delta %s") % short(n), inst) |
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232 | 233 | ui.progress(_('checking'), None) |
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233 | 234 | |
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234 | 235 | return filenodes |
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235 | 236 | |
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236 | 237 | def _crosscheckfiles(self, mflinkrevs, filelinkrevs, filenodes): |
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237 | 238 | repo = self.repo |
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238 | 239 | ui = self.ui |
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239 | 240 | ui.status(_("crosschecking files in changesets and manifests\n")) |
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240 | 241 | |
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241 | 242 | total = len(mflinkrevs) + len(filelinkrevs) + len(filenodes) |
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242 | 243 | count = 0 |
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243 | 244 | if self.havemf: |
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244 | 245 | for c, m in sorted([(c, m) for m in mflinkrevs |
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245 | 246 | for c in mflinkrevs[m]]): |
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246 | 247 | count += 1 |
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247 | 248 | if m == nullid: |
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248 | 249 | continue |
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249 | 250 | ui.progress(_('crosschecking'), count, total=total) |
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250 | 251 | self.err(c, _("changeset refers to unknown manifest %s") % |
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251 | 252 | short(m)) |
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252 | mflinkrevs = None # del is bad here due to scope issues | |
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253 | 253 | |
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254 | 254 | for f in sorted(filelinkrevs): |
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255 | 255 | count += 1 |
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256 | 256 | ui.progress(_('crosschecking'), count, total=total) |
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257 | 257 | if f not in filenodes: |
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258 | 258 | lr = filelinkrevs[f][0] |
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259 | 259 | self.err(lr, _("in changeset but not in manifest"), f) |
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260 | 260 | |
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261 | 261 | if self.havecl: |
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262 | 262 | for f in sorted(filenodes): |
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263 | 263 | count += 1 |
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264 | 264 | ui.progress(_('crosschecking'), count, total=total) |
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265 | 265 | if f not in filelinkrevs: |
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266 | 266 | try: |
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267 | 267 | fl = repo.file(f) |
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268 | 268 | lr = min([fl.linkrev(fl.rev(n)) for n in filenodes[f]]) |
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269 | 269 | except Exception: |
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270 | 270 | lr = None |
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271 | 271 | self.err(lr, _("in manifest but not in changeset"), f) |
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272 | 272 | |
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273 | 273 | ui.progress(_('crosschecking'), None) |
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274 | 274 | |
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275 | 275 | def _verifyfiles(self, filenodes, filelinkrevs): |
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276 | 276 | repo = self.repo |
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277 | 277 | ui = self.ui |
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278 | 278 | lrugetctx = self.lrugetctx |
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279 | 279 | revlogv1 = self.revlogv1 |
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280 | 280 | havemf = self.havemf |
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281 | 281 | ui.status(_("checking files\n")) |
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282 | 282 | |
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283 | 283 | storefiles = set() |
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284 | 284 | for f, f2, size in repo.store.datafiles(): |
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285 | 285 | if not f: |
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286 | 286 | self.err(None, _("cannot decode filename '%s'") % f2) |
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287 | 287 | elif size > 0 or not revlogv1: |
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288 | 288 | storefiles.add(_normpath(f)) |
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289 | 289 | |
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290 | 290 | files = sorted(set(filenodes) | set(filelinkrevs)) |
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291 | 291 | total = len(files) |
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292 | 292 | revisions = 0 |
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293 | 293 | for i, f in enumerate(files): |
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294 | 294 | ui.progress(_('checking'), i, item=f, total=total) |
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295 | 295 | try: |
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296 | 296 | linkrevs = filelinkrevs[f] |
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297 | 297 | except KeyError: |
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298 | 298 | # in manifest but not in changelog |
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299 | 299 | linkrevs = [] |
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300 | 300 | |
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301 | 301 | if linkrevs: |
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302 | 302 | lr = linkrevs[0] |
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303 | 303 | else: |
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304 | 304 | lr = None |
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305 | 305 | |
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306 | 306 | try: |
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307 | 307 | fl = repo.file(f) |
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308 | 308 | except error.RevlogError as e: |
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309 | 309 | self.err(lr, _("broken revlog! (%s)") % e, f) |
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310 | 310 | continue |
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311 | 311 | |
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312 | 312 | for ff in fl.files(): |
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313 | 313 | try: |
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314 | 314 | storefiles.remove(ff) |
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315 | 315 | except KeyError: |
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316 | 316 | self.warn(_(" warning: revlog '%s' not in fncache!") % ff) |
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317 | 317 | self.fncachewarned = True |
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318 | 318 | |
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319 | 319 | self.checklog(fl, f, lr) |
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320 | 320 | seen = {} |
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321 | 321 | rp = None |
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322 | 322 | for i in fl: |
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323 | 323 | revisions += 1 |
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324 | 324 | n = fl.node(i) |
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325 | 325 | lr = self.checkentry(fl, i, n, seen, linkrevs, f) |
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326 | 326 | if f in filenodes: |
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327 | 327 | if havemf and n not in filenodes[f]: |
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328 | 328 | self.err(lr, _("%s not in manifests") % (short(n)), f) |
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329 | 329 | else: |
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330 | 330 | del filenodes[f][n] |
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331 | 331 | |
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332 | 332 | # verify contents |
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333 | 333 | try: |
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334 | 334 | l = len(fl.read(n)) |
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335 | 335 | rp = fl.renamed(n) |
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336 | 336 | if l != fl.size(i): |
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337 | 337 | if len(fl.revision(n)) != fl.size(i): |
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338 | 338 | self.err(lr, _("unpacked size is %s, %s expected") % |
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339 | 339 | (l, fl.size(i)), f) |
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340 | 340 | except error.CensoredNodeError: |
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341 | 341 | # experimental config: censor.policy |
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342 | 342 | if ui.config("censor", "policy", "abort") == "abort": |
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343 | 343 | self.err(lr, _("censored file data"), f) |
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344 | 344 | except Exception as inst: |
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345 | 345 | self.exc(lr, _("unpacking %s") % short(n), inst, f) |
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346 | 346 | |
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347 | 347 | # check renames |
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348 | 348 | try: |
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349 | 349 | if rp: |
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350 | 350 | if lr is not None and ui.verbose: |
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351 | 351 | ctx = lrugetctx(lr) |
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352 | 352 | found = False |
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353 | 353 | for pctx in ctx.parents(): |
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354 | 354 | if rp[0] in pctx: |
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355 | 355 | found = True |
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356 | 356 | break |
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357 | 357 | if not found: |
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358 | 358 | self.warn(_("warning: copy source of '%s' not" |
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359 | 359 | " in parents of %s") % (f, ctx)) |
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360 | 360 | fl2 = repo.file(rp[0]) |
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361 | 361 | if not len(fl2): |
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362 | 362 | self.err(lr, _("empty or missing copy source " |
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363 | 363 | "revlog %s:%s") % (rp[0], short(rp[1])), f) |
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364 | 364 | elif rp[1] == nullid: |
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365 | 365 | ui.note(_("warning: %s@%s: copy source" |
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366 | 366 | " revision is nullid %s:%s\n") |
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367 | 367 | % (f, lr, rp[0], short(rp[1]))) |
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368 | 368 | else: |
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369 | 369 | fl2.rev(rp[1]) |
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370 | 370 | except Exception as inst: |
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371 | 371 | self.exc(lr, _("checking rename of %s") % short(n), inst, f) |
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372 | 372 | |
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373 | 373 | # cross-check |
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374 | 374 | if f in filenodes: |
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375 | 375 | fns = [(lr, n) for n, lr in filenodes[f].iteritems()] |
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376 | 376 | for lr, node in sorted(fns): |
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377 | 377 | self.err(lr, _("%s in manifests not found") % short(node), |
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378 | 378 | f) |
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379 | 379 | ui.progress(_('checking'), None) |
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380 | 380 | |
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381 | 381 | for f in storefiles: |
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382 | 382 | self.warn(_("warning: orphan revlog '%s'") % f) |
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383 | 383 | |
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384 | 384 | return len(files), revisions |
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