tests/crashgetbundler.py

discovery-helper: add an extra argument to generate only one repo

This is useful to generate left and right in parallel when dealing with very
large repositories.

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)