view tests/lockdelay.py @ 42926:34ed651ba7e4

cleanup: fix leakage of dirstate._map to client code

We already had proper accessors for most of the behavior of
dirstate._map that callers cared about exposed in the actual dirstate
class as public methods. Sigh.

There are two remaining privacy violations in the codebase after this change:

 1) In the perf extension, which I suspect has to stick around because
    it's really testing the dirstate implementation directly

 2) In largefiles, where we deal with standins and mutating status. Looking at
    this, I _strongly_ suspect a formal dirstate interface would allow
    this to work via composition instead of inheritance and
    monkeypatching. Fortunately, such wins are a part of my motivation
    for this work. I anticipate we'll come back to this in due time.

Differential Revision: https://phab.mercurial-scm.org/D6837

# 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