tests/crashgetbundler.py

context: move dirty() to committablectx

This is a pedantic move. It should be an error if dirty() is called on a
read-only context. Based on Mads Kiilerix's and my work at the sprint.

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)