/usr/share/pyshared/mercurial/verify.py is in mercurial-common 2.0.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 | # verify.py - repository integrity checking for Mercurial
#
# Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from node import nullid, short
from i18n import _
import os
import revlog, util, error
def verify(repo):
lock = repo.lock()
try:
return _verify(repo)
finally:
lock.release()
def _verify(repo):
mflinkrevs = {}
filelinkrevs = {}
filenodes = {}
revisions = 0
badrevs = set()
errors = [0]
warnings = [0]
ui = repo.ui
cl = repo.changelog
mf = repo.manifest
lrugetctx = util.lrucachefunc(repo.changectx)
if not repo.cancopy():
raise util.Abort(_("cannot verify bundle or remote repos"))
def err(linkrev, msg, filename=None):
if linkrev is not None:
badrevs.add(linkrev)
else:
linkrev = '?'
msg = "%s: %s" % (linkrev, msg)
if filename:
msg = "%s@%s" % (filename, msg)
ui.warn(" " + msg + "\n")
errors[0] += 1
def exc(linkrev, msg, inst, filename=None):
if isinstance(inst, KeyboardInterrupt):
ui.warn(_("interrupted"))
raise
if not str(inst):
inst = repr(inst)
err(linkrev, "%s: %s" % (msg, inst), filename)
def warn(msg):
ui.warn(msg + "\n")
warnings[0] += 1
def checklog(obj, name, linkrev):
if not len(obj) and (havecl or havemf):
err(linkrev, _("empty or missing %s") % name)
return
d = obj.checksize()
if d[0]:
err(None, _("data length off by %d bytes") % d[0], name)
if d[1]:
err(None, _("index contains %d extra bytes") % d[1], name)
if obj.version != revlog.REVLOGV0:
if not revlogv1:
warn(_("warning: `%s' uses revlog format 1") % name)
elif revlogv1:
warn(_("warning: `%s' uses revlog format 0") % name)
def checkentry(obj, i, node, seen, linkrevs, f):
lr = obj.linkrev(obj.rev(node))
if lr < 0 or (havecl and lr not in linkrevs):
if lr < 0 or lr >= len(cl):
msg = _("rev %d points to nonexistent changeset %d")
else:
msg = _("rev %d points to unexpected changeset %d")
err(None, msg % (i, lr), f)
if linkrevs:
if f and len(linkrevs) > 1:
try:
# attempt to filter down to real linkrevs
linkrevs = [l for l in linkrevs
if lrugetctx(l)[f].filenode() == node]
except:
pass
warn(_(" (expected %s)") % " ".join(map(str, linkrevs)))
lr = None # can't be trusted
try:
p1, p2 = obj.parents(node)
if p1 not in seen and p1 != nullid:
err(lr, _("unknown parent 1 %s of %s") %
(short(p1), short(n)), f)
if p2 not in seen and p2 != nullid:
err(lr, _("unknown parent 2 %s of %s") %
(short(p2), short(p1)), f)
except Exception, inst:
exc(lr, _("checking parents of %s") % short(node), inst, f)
if node in seen:
err(lr, _("duplicate revision %d (%d)") % (i, seen[n]), f)
seen[n] = i
return lr
if os.path.exists(repo.sjoin("journal")):
ui.warn(_("abandoned transaction found - run hg recover\n"))
revlogv1 = cl.version != revlog.REVLOGV0
if ui.verbose or not revlogv1:
ui.status(_("repository uses revlog format %d\n") %
(revlogv1 and 1 or 0))
havecl = len(cl) > 0
havemf = len(mf) > 0
ui.status(_("checking changesets\n"))
seen = {}
checklog(cl, "changelog", 0)
total = len(repo)
for i in repo:
ui.progress(_('checking'), i, total=total, unit=_('changesets'))
n = cl.node(i)
checkentry(cl, i, n, seen, [i], "changelog")
try:
changes = cl.read(n)
mflinkrevs.setdefault(changes[0], []).append(i)
for f in changes[3]:
filelinkrevs.setdefault(f, []).append(i)
except Exception, inst:
exc(i, _("unpacking changeset %s") % short(n), inst)
ui.progress(_('checking'), None)
ui.status(_("checking manifests\n"))
seen = {}
checklog(mf, "manifest", 0)
total = len(mf)
for i in mf:
ui.progress(_('checking'), i, total=total, unit=_('manifests'))
n = mf.node(i)
lr = checkentry(mf, i, n, seen, mflinkrevs.get(n, []), "manifest")
if n in mflinkrevs:
del mflinkrevs[n]
else:
err(lr, _("%s not in changesets") % short(n), "manifest")
try:
for f, fn in mf.readdelta(n).iteritems():
if not f:
err(lr, _("file without name in manifest"))
elif f != "/dev/null":
filenodes.setdefault(f, {}).setdefault(fn, lr)
except Exception, inst:
exc(lr, _("reading manifest delta %s") % short(n), inst)
ui.progress(_('checking'), None)
ui.status(_("crosschecking files in changesets and manifests\n"))
total = len(mflinkrevs) + len(filelinkrevs) + len(filenodes)
count = 0
if havemf:
for c, m in sorted([(c, m) for m in mflinkrevs
for c in mflinkrevs[m]]):
count += 1
if m == nullid:
continue
ui.progress(_('crosschecking'), count, total=total)
err(c, _("changeset refers to unknown manifest %s") % short(m))
mflinkrevs = None # del is bad here due to scope issues
for f in sorted(filelinkrevs):
count += 1
ui.progress(_('crosschecking'), count, total=total)
if f not in filenodes:
lr = filelinkrevs[f][0]
err(lr, _("in changeset but not in manifest"), f)
if havecl:
for f in sorted(filenodes):
count += 1
ui.progress(_('crosschecking'), count, total=total)
if f not in filelinkrevs:
try:
fl = repo.file(f)
lr = min([fl.linkrev(fl.rev(n)) for n in filenodes[f]])
except:
lr = None
err(lr, _("in manifest but not in changeset"), f)
ui.progress(_('crosschecking'), None)
ui.status(_("checking files\n"))
storefiles = set()
for f, f2, size in repo.store.datafiles():
if not f:
err(None, _("cannot decode filename '%s'") % f2)
elif size > 0 or not revlogv1:
storefiles.add(f)
files = sorted(set(filenodes) | set(filelinkrevs))
total = len(files)
for i, f in enumerate(files):
ui.progress(_('checking'), i, item=f, total=total)
try:
linkrevs = filelinkrevs[f]
except KeyError:
# in manifest but not in changelog
linkrevs = []
if linkrevs:
lr = linkrevs[0]
else:
lr = None
try:
fl = repo.file(f)
except error.RevlogError, e:
err(lr, _("broken revlog! (%s)") % e, f)
continue
for ff in fl.files():
try:
storefiles.remove(ff)
except KeyError:
err(lr, _("missing revlog!"), ff)
checklog(fl, f, lr)
seen = {}
rp = None
for i in fl:
revisions += 1
n = fl.node(i)
lr = checkentry(fl, i, n, seen, linkrevs, f)
if f in filenodes:
if havemf and n not in filenodes[f]:
err(lr, _("%s not in manifests") % (short(n)), f)
else:
del filenodes[f][n]
# verify contents
try:
l = len(fl.read(n))
rp = fl.renamed(n)
if l != fl.size(i):
if len(fl.revision(n)) != fl.size(i):
err(lr, _("unpacked size is %s, %s expected") %
(l, fl.size(i)), f)
except Exception, inst:
exc(lr, _("unpacking %s") % short(n), inst, f)
# check renames
try:
if rp:
if lr is not None and ui.verbose:
ctx = lrugetctx(lr)
found = False
for pctx in ctx.parents():
if rp[0] in pctx:
found = True
break
if not found:
warn(_("warning: copy source of '%s' not"
" in parents of %s") % (f, ctx))
fl2 = repo.file(rp[0])
if not len(fl2):
err(lr, _("empty or missing copy source revlog %s:%s")
% (rp[0], short(rp[1])), f)
elif rp[1] == nullid:
ui.note(_("warning: %s@%s: copy source"
" revision is nullid %s:%s\n")
% (f, lr, rp[0], short(rp[1])))
else:
fl2.rev(rp[1])
except Exception, inst:
exc(lr, _("checking rename of %s") % short(n), inst, f)
# cross-check
if f in filenodes:
fns = [(lr, n) for n, lr in filenodes[f].iteritems()]
for lr, node in sorted(fns):
err(lr, _("%s in manifests not found") % short(node), f)
ui.progress(_('checking'), None)
for f in storefiles:
warn(_("warning: orphan revlog '%s'") % f)
ui.status(_("%d files, %d changesets, %d total revisions\n") %
(len(files), len(cl), revisions))
if warnings[0]:
ui.warn(_("%d warnings encountered!\n") % warnings[0])
if errors[0]:
ui.warn(_("%d integrity errors encountered!\n") % errors[0])
if badrevs:
ui.warn(_("(first damaged changeset appears to be %d)\n")
% min(badrevs))
return 1
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