view tests/lockdelay.py @ 38288:a9de1d28681c

show: stringify filtered list of tags before testing emptiness

`names % "{ifeq(name, 'tip', '', name)}"}"` may return [''], which shouldn't
be falsy, but it is thanks to a templater bug. This patch converts [''] to ''
before testing truthness.

# 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