view tests/lockdelay.py @ 35336:c3e4f196b6e0

debugformat: add a 'debugformat' command

The command displays basic data about all format variants registered for repo
upgrades. This gives a quick way to peek into a repository format.

The 'fm.write()' calls are very independent because more data will be added in
later changeset. Having more separate call make the later patch clearer.

# 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