GNU bug report logs - #68589
[PATCH] Add guix-home-service-type

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Lars Rustand <rustand.lars <at> gmail.com>
Cc: 68589 <at> debbugs.gnu.org
Subject: [bug#68589] [PATCH] Add guix-home-service-type
Date: Sat, 10 Feb 2024 22:30:35 +0100

Hi Lars,

Lars Rustand <rustand.lars <at> gmail.com> skribis:

> Hoping to upstream this nice service from RDE. This service allows to
> embed a home environment in a operating-system declaration.
>
> Original source: https://git.sr.ht/~abcdw/rde/tree/master/item/src/gnu/services/home.scm
>
> Change-Id: I42976cae9dd1580dc07dc866cd851294c7921725

This would be much welcome!

> +++ b/gnu/services/home.scm
> @@ -0,0 +1,47 @@
> +(define-module (gnu services home)

Could you add a header similar to that found in other files?

Since this is copied from rde, make sure to preserve their copyright
notices.

> +(define (guix-home-shepherd-service config)
> +  (map
> +   (lambda (x)
> +     (let ((user (car x))
> +           (he (cdr x)))

In Guix we’d use ‘match’ instead of ‘car’ + ‘cdr’:

  https://guix.gnu.org/manual/devel/en/html_node/Data-Types-and-Pattern-Matching.html

But perhaps we could just as well define a <guix-home-configuration>
record or similar?

> +(define (guix-home-gc-roots config)
> +  (map cdr config))

Unused.

> +(define guix-home-service-type
> +  (service-type
> +   (name 'guix-home)
> +   (description "Setups home-environments specified in the value.")

“Sets up Guix Home for the specified user accounts.”

> +   (extensions (list (service-extension
> +                      shepherd-root-service-type
> +                      guix-home-shepherd-service)))
> +   ;; (compose append)
> +   ;; (extend append)

Why comment it out?

Also make sure to register the file in ‘gnu/local.mk’.

Last, we usually require a test for system services; you can find them
in gnu/tests/*.scm.  Could you try and write one?  It would check for
instance that the user’s shepherd is indeed started.

Could you send an updated patch?

Thanks,
Ludo’.

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