view mercurial/verify.py @ 6789:c1c202e2d45d

Force email package to be loaded in py2exe

With Python 2.5, the email package is not fully loaded by py2exe, due to
dynamic imports which are not found by modulefinder. This breaks the patchbomb
extension. This patch forces the whole email package to be included so that
the dynamic imports work as expected.

# verify.py - repository integrity checking for Mercurial
#
# Copyright 2006, 2007 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

from node import nullid, short
from i18n import _
import revlog

def verify(repo):
    lock = repo.lock()
    try:
        return _verify(repo)
    finally:
        del lock

def _verify(repo):
    filelinkrevs = {}
    filenodes = {}
    changesets = revisions = files = 0
    firstbad = [None]
    errors = [0]
    warnings = [0]
    neededmanifests = {}

    def err(linkrev, msg, filename=None):
        if linkrev != None:
            if firstbad[0] != None:
                firstbad[0] = min(firstbad[0], linkrev)
            else:
                firstbad[0] = linkrev
        else:
            linkrev = "?"
        msg = "%s: %s" % (linkrev, msg)
        if filename:
            msg = "%s@%s" % (filename, msg)
        repo.ui.warn(" " + msg + "\n")
        errors[0] += 1

    def warn(msg):
        repo.ui.warn(msg + "\n")
        warnings[0] += 1

    def checksize(obj, name):
        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)

    def checkversion(obj, 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)

    revlogv1 = repo.changelog.version != revlog.REVLOGV0
    if repo.ui.verbose or not revlogv1:
        repo.ui.status(_("repository uses revlog format %d\n") %
                       (revlogv1 and 1 or 0))

    havecl = havemf = 1
    seen = {}
    repo.ui.status(_("checking changesets\n"))
    if repo.changelog.count() == 0 and repo.manifest.count() > 1:
        havecl = 0
        err(0, _("empty or missing 00changelog.i"))
    else:
        checksize(repo.changelog, "changelog")

    for i in xrange(repo.changelog.count()):
        changesets += 1
        n = repo.changelog.node(i)
        l = repo.changelog.linkrev(n)
        if l != i:
            err(i, _("incorrect link (%d) for changeset") %(l))
        if n in seen:
            err(i, _("duplicates changeset at revision %d") % seen[n])
        seen[n] = i

        for p in repo.changelog.parents(n):
            if p not in repo.changelog.nodemap:
                err(i, _("changeset has unknown parent %s") % short(p))
        try:
            changes = repo.changelog.read(n)
        except KeyboardInterrupt:
            repo.ui.warn(_("interrupted"))
            raise
        except Exception, inst:
            err(i, _("unpacking changeset: %s") % inst)
            continue

        if changes[0] not in neededmanifests:
            neededmanifests[changes[0]] = i

        for f in changes[3]:
            filelinkrevs.setdefault(f, []).append(i)

    seen = {}
    repo.ui.status(_("checking manifests\n"))
    if repo.changelog.count() > 0 and repo.manifest.count() == 0:
        havemf = 0
        err(0, _("empty or missing 00manifest.i"))
    else:
        checkversion(repo.manifest, "manifest")
        checksize(repo.manifest, "manifest")

    for i in xrange(repo.manifest.count()):
        n = repo.manifest.node(i)
        l = repo.manifest.linkrev(n)

        if l < 0 or (havecl and l >= repo.changelog.count()):
            err(None, _("bad link (%d) at manifest revision %d") % (l, i))

        if n in neededmanifests:
            del neededmanifests[n]

        if n in seen:
            err(l, _("duplicates manifest from %d") % seen[n])

        seen[n] = l

        for p in repo.manifest.parents(n):
            if p not in repo.manifest.nodemap:
                err(l, _("manifest has unknown parent %s") % short(p))

        try:
            for f, fn in repo.manifest.readdelta(n).iteritems():
                fns = filenodes.setdefault(f, {})
                if fn not in fns:
                    fns[fn] = n
        except KeyboardInterrupt:
            repo.ui.warn(_("interrupted"))
            raise
        except Exception, inst:
            err(l, _("reading manifest delta: %s") % inst)
            continue

    repo.ui.status(_("crosschecking files in changesets and manifests\n"))

    if havemf > 0:
        nm = [(c, m) for m, c in neededmanifests.items()]
        nm.sort()
        for c, m in nm:
            err(c, _("changeset refers to unknown manifest %s") % short(m))
        del neededmanifests, nm

    if havecl:
        fl = filenodes.keys()
        fl.sort()
        for f in fl:
            if f not in filelinkrevs:
                lrs = [repo.manifest.linkrev(n) for n in filenodes[f]]
                lrs.sort()
                err(lrs[0], _("in manifest but not in changeset"), f)
        del fl

    if havemf:
        fl = filelinkrevs.keys()
        fl.sort()
        for f in fl:
            if f not in filenodes:
                lr = filelinkrevs[f][0]
                err(lr, _("in changeset but not in manifest"), f)
        del fl

    repo.ui.status(_("checking files\n"))
    ff = dict.fromkeys(filenodes.keys() + filelinkrevs.keys()).keys()
    ff.sort()
    for f in ff:
        if f == "/dev/null":
            continue
        files += 1
        if not f:
            lr = filelinkrevs[f][0]
            err(lr, _("file without name in manifest"))
            continue
        fl = repo.file(f)
        checkversion(fl, f)
        checksize(fl, f)

        if fl.count() == 0:
            err(filelinkrevs[f][0], _("empty or missing revlog"), f)
            continue

        seen = {}
        nodes = {nullid: 1}
        for i in xrange(fl.count()):
            revisions += 1
            n = fl.node(i)
            flr = fl.linkrev(n)

            if flr < 0 or (havecl and flr not in filelinkrevs.get(f, [])):
                if flr < 0 or flr >= repo.changelog.count():
                    err(None, _("rev %d point to nonexistent changeset %d")
                        % (i, flr), f)
                else:
                    err(None, _("rev %d points to unexpected changeset %d")
                        % (i, flr), f)
                if f in filelinkrevs:
                    warn(_(" (expected %s)") % filelinkrevs[f][0])
                flr = None # can't be trusted
            else:
                if havecl:
                    filelinkrevs[f].remove(flr)

            if n in seen:
                err(flr, _("duplicate revision %d") % i, f)
            if f in filenodes:
                if havemf and n not in filenodes[f]:
                    err(flr, _("%s not in manifests") % (short(n)), f)
                else:
                    del filenodes[f][n]

            # verify contents
            try:
                t = fl.read(n)
            except KeyboardInterrupt:
                repo.ui.warn(_("interrupted"))
                raise
            except Exception, inst:
                err(flr, _("unpacking %s: %s") % (short(n), inst), f)

            # verify parents
            try:
                (p1, p2) = fl.parents(n)
                if p1 not in nodes:
                    err(flr, _("unknown parent 1 %s of %s") %
                        (short(p1), short(n)), f)
                if p2 not in nodes:
                    err(flr, _("unknown parent 2 %s of %s") %
                            (short(p2), short(p1)), f)
            except KeyboardInterrupt:
                repo.ui.warn(_("interrupted"))
                raise
            except Exception, inst:
                err(flr, _("checking parents of %s: %s") % (short(n), inst), f)
            nodes[n] = 1

            # check renames
            try:
                rp = fl.renamed(n)
                if rp:
                    fl2 = repo.file(rp[0])
                    if fl2.count() == 0:
                        err(flr, _("empty or missing copy source revlog %s:%s")
                            % (rp[0], short(rp[1])), f)
                    elif rp[1] == nullid:
                        err(flr, _("copy source revision is nullid %s:%s")
                            % (rp[0], short(rp[1])), f)
                    else:
                        rev = fl2.rev(rp[1])
            except KeyboardInterrupt:
                repo.ui.warn(_("interrupted"))
                raise
            except Exception, inst:
                err(flr, _("checking rename of %s: %s") %
                    (short(n), inst), f)

        # cross-check
        if f in filenodes:
            fns = [(repo.manifest.linkrev(filenodes[f][n]), n)
                   for n in filenodes[f]]
            fns.sort()
            for lr, node in fns:
                err(lr, _("%s in manifests not found") % short(node), f)

    repo.ui.status(_("%d files, %d changesets, %d total revisions\n") %
                   (files, changesets, revisions))

    if warnings[0]:
        repo.ui.warn(_("%d warnings encountered!\n") % warnings[0])
    if errors[0]:
        repo.ui.warn(_("%d integrity errors encountered!\n") % errors[0])
        if firstbad[0]:
            repo.ui.warn(_("(first damaged changeset appears to be %d)\n")
                         % firstbad[0])
        return 1