[Bug 4652] New: hg pull from bundle can crash

[mercurial-bugs at selenic.com]

http://bz.selenic.com/show_bug.cgi?id=4652

          Priority: normal
            Bug ID: 4652
                CC: mercurial-devel at selenic.com,
                    pierre-yves.david at ens-lyon.org
          Assignee: bugzilla at selenic.com
           Summary: hg pull from bundle can crash
          Severity: bug
    Classification: Unclassified
                OS: Mac OS
          Reporter: lcharignon at fb.com
          Hardware: Macintosh
            Status: UNCONFIRMED
           Version: 3.4-rc
         Component: evolution
           Product: Mercurial

As far as I know, not a regression.

Repro steps:
- Create two new commits (rev num 106 and 107 here)
- Prune 107 and 106:
lcharignon at lcharignon-mbp$ ~/sandbox/repo hg prune 107
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
working directory now at bce959d16d50
1 changesets pruned
lcharignon at lcharignon-mbp$ ~/sandbox/repo hg prune 106
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
working directory now at 97ed2ffb22ae
1 changesets pruned

- Strip 107 and 106
lcharignon at lcharignon-mbp$ ~/sandbox/repo hg strip 107 --hidden
saved backup bundle to
/Users/lcharignon/sandbox/repo/.hg/strip-backup/802f58042abb-cd1713a6-backup.hg
lcharignon at lcharignon-mbp$ ~/sandbox/repo hg strip 106 --hidden
saved backup bundle to
/Users/lcharignon/sandbox/repo/.hg/strip-backup/bce959d16d50-7d77bc3b-backup.hg

- Pull from the latest backup:
lcharignon at lcharignon-mbp$ ~/sandbox/repo hg pull
.hg/strip-backup/bce959d16d50-7d77bc3b-backup.hg
pulling from .hg/strip-backup/bce959d16d50-7d77bc3b-backup.hg
** Unknown exception encountered with possibly-broken third-party extension
b2xcompat
** which supports versions unknown of Mercurial.
** Please disable b2xcompat and try your action again.
** If that fixes the bug please report it to the extension author.
** Python 2.7.6 (default, Sep  9 2014, 15:04:36) [GCC 4.2.1 Compatible Apple
LLVM 6.0 (clang-600.0.39)]
** Mercurial Distributed SCM (version 3.4-rc+33-1f9127c9239b)
** Extensions loaded: b2xcompat, backups, blackbox, chistedit, color, crecord,
fbhistedit, githelp, histedit, lz4revlog, pager, phabdiff, phrevset, progress,
purge, rebase, record, reflog, remotefilelog, remotenames, reset, shelve,
strip, tweakdefaults, smartlog, patchbomb, evolve, extdiff
Traceback (most recent call last):
  File "/usr/local/bin/hg.real", line 43, in <module>
    mercurial.dispatch.run()
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 29, in
run
    sys.exit((dispatch(request(sys.argv[1:])) or 0) & 255)
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 91, in
dispatch
    ret = _runcatch(req)
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 160, in
_runcatch
    return _dispatch(req)
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 885, in
_dispatch
    cmdpats, cmdoptions)
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 646, in
runcommand
    ret = _runcommand(ui, options, cmd, d)
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/hgext/pager.py", line 160, in pagecmd
    return orig(ui, options, cmd, cmdfunc)
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/hgext/color.py", line 521, in
colorcmd
    return orig(ui_, opts, cmd, cmdfunc)
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 976, in
_runcommand
    return checkargs()
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 947, in
checkargs
    return cmdfunc()
  File "/Library/Python/2.7/site-packages/mercurial/dispatch.py", line 882, in
<lambda>
    d = lambda: util.checksignature(func)(ui, *args, **cmdoptions)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/remotenames.py", line 455, in
expullcmd
    return orig(ui, repo, source, **opts)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/hgext/evolve.py", line 637, in
warnobserrors
    ret = orig(ui, repo, *args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/hgext/evolve.py", line 615, in
wrapmayobsoletewc
    res = origfn(ui, repo, *args, **opts)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/remotefilelog/__init__.py", line 535,
in pull
    result = orig(ui, repo, *pats, **opts)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/hgext/rebase.py", line 1055, in
pullrebase
    orig(ui, repo, *args, **opts)
  File "/Library/Python/2.7/site-packages/mercurial/util.py", line 716, in
check
    return func(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/commands.py", line 5122, in
pull
    bookmarks=opts.get('bookmark', ())).cgresult
  File "/Library/Python/2.7/site-packages/mercurial/extensions.py", line 164,
in closure
    return func(*(args + a), **kw)
  File "/Library/Python/2.7/site-packages/remotenames.py", line 50, in expull
    res = orig(repo, remote, *args, **kwargs)
  File "/Library/Python/2.7/site-packages/mercurial/exchange.py", line 886, in
pull
    _pulldiscovery(pullop)
  File "/Library/Python/2.7/site-packages/mercurial/exchange.py", line 928, in
_pulldiscovery
    step(pullop)
  File "/Library/Python/2.7/site-packages/mercurial/exchange.py", line 939, in
_pulldiscoverychangegroup
    force=pullop.force)
  File "/Library/Python/2.7/site-packages/mercurial/discovery.py", line 46, in
findcommonincoming
    abortwhenunrelated=not force)
  File "/Library/Python/2.7/site-packages/mercurial/setdiscovery.py", line 142,
in findcommonheads
    srvheadhashes = remote.heads()
  File "/Library/Python/2.7/site-packages/mercurial/localrepo.py", line 104, in
heads
    return self._repo.heads()
  File "/Library/Python/2.7/site-packages/mercurial/localrepo.py", line 1680,
in heads
    heads = self.changelog.heads(start)
  File "/Library/Python/2.7/site-packages/mercurial/revlog.py", line 754, in
heads
    return [self.node(r) for r in self.headrevs()]
  File "/Library/Python/2.7/site-packages/mercurial/changelog.py", line 211, in
node
    raise error.FilteredIndexError(rev)
mercurial.error.FilteredIndexError: 106
[Exit 1]

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