Re: error: %guix-register-program: unbound variable on guix time-machine

[Maxim Cournoyer <maxim.cournoyer@gmail.com>]

Hi Simon,

Simon Tournier <zimon.toutoune@gmail.com> writes:

> Hi Maxim,
>
> On Wed, 31 May 2023 at 21:15, Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:
>> Hello,
>>
>> Attempting to navigate to a relatively distant past (Wed Jan 25 23:42:11
>> 2017 -0500) with commit 9b9e147117e6009451d7acc1f8f156e041263e32, I hit:
>
> [...]
>
>> Is this expected?  info '(guix) Invoking guix time-machine' does not
>> mention of any point "too far" in the past to travel to.
>
> It’s expected.  It’s not possible to travel so far back.  The zero for
> time-traveling is the introduction of “inferiors” mechanism around 2019.
>
> Well, since the question is recurrent, I agree that:
>
>  1. the manual needs to be improved;
>  2. the command “guix time-machine” should raise a gentle error when the
>     specification is unreachable.

I've sent a patch doing both 1 and 2 above to guix-patches; you were
CC'd on it.  Let me know what you think!

-- 
Thanks,
Maxim