Re: Specifying dependencies among package outputs?

[zimoun]

Hi Tobias,

On Thu, 15 Oct 2020 at 02:38, Tobias Geerinckx-Rice <me@tobias.gr> wrote:

> Well, yes, but probably not in the way you mean: they aren't
> specified at all.  Oh dear, nckx's responding to a question about
> ‘dependencies’.  Apologies to those who know what's coming.

[...]

> If you apply the patch below you'll see (e.g., with ‘guix size’)
> that installing only knot:tools will pull in knot{:out,:lib}
> without any human-made hints to that effect.

Wow!  Thank you for the detailed explanation.  I have also been
puzzled by this and my mind was still a bit foggy on the topic.  Now
all clear! :-)


> Attached patch:
>
>   $ guix size /gnu/store/...-knot-3.0.1-doc
>   total: 0.2 MiB (no references)
>   $ guix size /gnu/store/...-knot-3.0.1-lib
>   total: 145.0 MiB (self: 2.4 MiB)
>   $ guix size /gnu/store/...-knot-3.0.1
>   total: 171.1 MiB (self: 5.2 MiB; refers to :lib)
>   $ guix size /gnu/store/...-knot-3.0.1-tools
>   total: 164.9 MiB (self: 0.4 MiB; refers to :lib)
>
> Old monolithic knot:
>
>   $ guix size /gnu/store/...-knot-3.0.1
>   total: 171.5 MiB (self: 8.0 MiB)

These numbers are self explanatory for me.  Maybe this example could
go to the Cookbook?



All the best,
simon