view tests/lockdelay.py @ 42270:19b95afb0c01

record: avoid modifying the matcher passed as a method parameter

No problem observed, but I remember the previous pattern causing problems with
largefiles and/or subrepos.  This special matcher was added in 419ac63fe29c, so
directly modifying the `fail` callback was probably an oversight in
44611ad4fbd9.

Differential Revision: https://phab.mercurial-scm.org/D6371

# 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