Re: Package Argument #:asd-systems Missing & Guix Provides

[Guillaume Le Vaillant <glv@posteo.net>]

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Charles <Charles.b.jackson@proton.me> skribis:

> Hello Guix Developers.
>
> [...]
>
> Full Context:
>
> I am trying to make a guix-provides script that would take some artifact (name of asd-system) as input and give the packages that create those artifacts.
> Examples:
>
> Find by asdf-system
> $ guix provides --asdf-system com.inuoe.jzon
> sbcl-jzon
> ecl-jzon
> cl-jzon
>
> Find by binary. I think it will take significant changes to get this one to work.
> $ guix provides as
> binutils
>
> I'm working on the --asdf-system version as a proof of concept because I like
> lisp, and it seems doable with minimal changes. The one problem I'm running
> into is not having access to the #:asd-systems package argument for packages
> with asdf-build-system/source. I agin ask: Would it be possible to leave the
> package-arguments (at least the #:asd-systems) in tact for
> asdf-build-system/source packages?

Hi,

I don't think you can rely on the 'asd-systems' argument of a package
definitions to have an accurate description of ASDF systems contained in
this package.

For example, a system "xxx" could depend on "xxx/a" and "xxx/b". The
package definition for sbcl-xxx will usually only have "xxx" in
'asd-systems'. The "xxx/a" and "xxx/b" systems will get compiled
automatically by ASDF as they are depencencies of the "xxx" system, but
they won't appear in the 'asd-systems' list.

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