[bug#71038] [PATCH 1/2] guix: store: Enable specifying the available builtin builders.

[Christopher Baines <mail@cbaines.net>]

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

> On sam., 18 mai 2024 at 14:19, Christopher Baines <mail@cbaines.net> wrote:
>
>> diff --git a/guix/store.scm b/guix/store.scm
>> index 58ddaa8d15..0c734cdca7 100644
>> --- a/guix/store.scm
>> +++ b/guix/store.scm
>> @@ -571,7 +571,7 @@ (define* (connect-to-daemon uri #:key non-blocking?)
>>
>>  (define* (open-connection #:optional (uri (%daemon-socket-uri))
>>                            #:key port (reserve-space? #t) cpu-affinity
>> -                          non-blocking?)
>> +                          non-blocking? assume-available-builtin-builders)
>
> Why add the variable %assume-available-builtin-builders and default to
> it?
>
> Something like:
>
> --8<---------------cut here---------------start------------->8---
> (define %assume-available-builtin-builders
>   "List of builtin builders supported by the builder Guix daemon."
>   (list "download" "git-download"))
>
> (define* (open-connection #:optional (uri (%daemon-socket-uri))
>                           #:key port (reserve-space? #t) cpu-affinity
>                           non-blocking?)
>                           non-blocking?
>                           (assume-available-builtin-builders %assume-available-builtin-builders))
> --8<---------------cut here---------------end--------------->8---
>
> And then default to this %assume-available-builtin-builders elsewhere in
> [PATCH 2/2].  IMHO, it changes almost nothing but it would help to know
> (document) what to pass as argument.

I think it's sensible to not use a fixed list by default, but check what
the daemon supports.

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