bug#63726: time-machine without options does not get the latest commit

[Ludovic Courtès]

Hi,

Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:

> Ludovic Courtès <ludovic.courtes@inria.fr> writes:
>
>> Hey!
>>
>> Konrad Hinsen <konrad.hinsen@fastmail.net> skribis:
>>
>>> This looks good to me. In practice, I doubt anyone would use -q with
>>> time-machine, because it makes more sense to specify an explicit channel
>>> file every time.
>>
>> Yeah.  The use case I have in mind is something like:
>>
>>   guix time-machine -q --commit=XYZ -- build hello
>>
>> Useful, for example, to share a way to reproduce a bug, making sure
>> there’s nothing but the ‘guix’ channel.
>
> The '-q' short option by itself is a bit opaque / hard to memorize;
> perhaps complementing it with a self explanatory
> '--ignore-channel-files' long option name would be a good idea?

Yes, I did that in v2, as Simon suggested.

(‘-q’ seems to be a relatively common convention: emacs, guile, and also
‘guix repl’.)

Ludo’.