Re: [PATCH 2/5] t1400: set core.logAllRefUpdates in "logged by touch" tests

>> I'm confused about the setup for the "logged by touch" tests.
>> d0ab05849 (tests: remove some direct access to .git/logs, 2015-07-27)
>> changed the setup to delete the log file itself rather than its
>> contents.  The reflog was then recreated by using "--create-reflog" in
>> the "create $m (logged by touch)" test.  What I don't understand is
>> how this change fits with d0ab05849, which seems to be concerned with
>> loosening the assumption that the logs are stored in .git/logs.
>
> I suspect the answer is that the conversion was incomplete. That commit
> was done for alternate ref backends, which is an ongoing saga.
>
> I think it's OK to leave it as-is for now. It's not clear what "logged
> by touch" will look like for backends that don't use the filesystem.
> Probably it will need to call "update-ref --create-reflog" to kickstart
> it, and then further updates will automatically write to it.
>
> At that point the "rm -f" would need to become "tell the backend to
> delete this reflog". There's no command for that now, but we can add one
> later. Until then, I suspect the "rm -f" would be a noop. That means
> that the first --create-reflog test is failing to test what it claims,
> but the result passes anyway.
>
> And that probably answers the question about why the conversion is
> half-done. It was enough to get the tests to stop complaining when built
> with an alternate ref backend. :)