tests/lockdelay.py

wix: restore COPYING.rtf

This got truncated to 0 bytes in 0ab651b5f77c when the Phabricator extension
crashed because it's a binary file.  That caused the license page in the WIX
installer to be empty.  I don't remember if I needed to resubmit after the bug
was fixed, so let's try this again with the current stable.  If this fails, I'll
retry with 5.1 to see if this is a regression in the API changeover last cycle.

Differential Revision: https://phab.mercurial-scm.org/D8052

# 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