tests/helper-killhook.py

dirstate-v2: Drop parent directory cache when removing a dirstate node

The premise of the directory cache is that the dirstate contains child nodes
for every entry that `read_dir` would return. When removing nodes, that may
not be the case anymore so the cache should be invalidated.

Differential Revision: https://phab.mercurial-scm.org/D10829

import os


def killme(ui, repo, hooktype, **wkargs):
    os._exit(80)