view tests/lockdelay.py @ 44794:3cfcbb219496

nodemap: move and update the commend about persistence being experimental

The comment was at the wrong place (on the developer option instead of the
activation switch). So we move it at the right location and update it.

Differential Revision: https://phab.mercurial-scm.org/D8420

# Dummy extension that adds a delay after acquiring a lock.
#
# This extension can be used to test race conditions between lock acquisition.

from __future__ import absolute_import

import os
import time


def reposetup(ui, repo):
    class delayedlockrepo(repo.__class__):
        def lock(self):
            delay = float(os.environ.get('HGPRELOCKDELAY', '0.0'))
            if delay:
                time.sleep(delay)
            res = super(delayedlockrepo, self).lock()
            delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0'))
            if delay:
                time.sleep(delay)
            return res

    repo.__class__ = delayedlockrepo