tests/lockdelay.py
author Koen Van Hoof <koen.van_hoof@nokia.com>
Wed, 26 Apr 2017 16:05:22 +0200
changeset 32721 c2cb0de25120
parent 30068 a76d5ba7ac43
child 43076 2372284d9457
permissions -rw-r--r--
chmod: create a new file when flags are set on a hardlinked file For performance reasons we have several repositories where the files in the working directory of 1 repo are hardlinks to the files of the other repo When an update in one repo results in a chmod of a such a file, the hardlink has to be deleted and replaced by a regular file to make sure that the change does not happen in the other repo

# 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