upgrade: make dirstate-v2 format variant compatible with share
This only affects the dirstate and is safe to upgrade in the share.
Differential Revision: https://phab.mercurial-scm.org/D12197
from __future__ import absolute_import
from mercurial.i18n import _
from mercurial import changegroup, error, extensions
def abort(orig, *args, **kwargs):
raise error.Abort(_('this is an exercise'))
def uisetup(ui):
extensions.wrapfunction(changegroup, 'getbundler', abort)