view tests/lockdelay.py @ 38930:382b055cc358

templatekw: deprecate old-style template keyword function (API)

.. api::

   `f(**kwargs)` style template keyword function is deprecated. Switch to
   new `(context, mapping)` API by declaring resource requirements.
   The new-style API will be the default in Mercurial 4.9. See
   registrar.templatekeyword for details.

# 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