view tests/lockdelay.py @ 51885:adbb183c2f27

vfs: simplify the `abstractvfs.rename()` implementation

PyCharm was yapping about `util.rename()` not returning anything, because it is
typed to return `None`, but the value was captured and returned after calling
`_avoidambig()`.  Instead, drop all of that, unconditionally rename, and then
call `_avoidambig()` if appropriate.

While we're here, convert the ersatz ternary operator into a modern one to help
pytype.  When a variable is initialized the old way, pytype tends to assign the
type of the LHS of the `and`.  In this case, that's a bool, and it will get
confused that bool doesn't have a `stat` attribute once this method gets more
type annotations.  (Currently it thinks the `checkambig` arg is `Any`, so it
doesn't care.)

# Dummy extension that adds a delay after acquiring a lock.
#
# This extension can be used to test race conditions between lock acquisition.


import os
import time


def reposetup(ui, repo):
    class delayedlockrepo(repo.__class__):
        def lock(self, wait=True):
            delay = float(os.environ.get('HGPRELOCKDELAY', '0.0'))
            if delay:
                time.sleep(delay)
            res = super(delayedlockrepo, self).lock(wait=wait)
            delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0'))
            if delay:
                time.sleep(delay)
            return res

    repo.__class__ = delayedlockrepo