# 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

from mercurial import (

    lock as lockmod,

)

class delaylock(lockmod.lock):

    def lock(self):

        delay = float(os.environ.get('HGPRELOCKDELAY', '0.0'))

        if delay:

            time.sleep(delay)

        res = super(delaylock, self).lock()

        delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0'))

        if delay:

            time.sleep(delay)

        return res

def extsetup(ui):

    lockmod.lock = delaylock