GNU bug report logs - #60735
[PATCH 0/2] Implement etc-hosts-service-type

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Message #29 received at 60735 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Bruno Victal <mirai <at> makinata.eu>
Cc: 60735 <at> debbugs.gnu.org
Subject: Re: [PATCH v2 2/3] system: Deprecate hosts-file.
Date: Mon, 23 Jan 2023 23:37:49 +0100

Bruno Victal <mirai <at> makinata.eu> skribis:

> * gnu/system.scm (operating-system-hosts-file): Deprecate procedure.
> (warn-hosts-file-field-deprecation): New procedure, helper for
> deprecated variable).
> (operating-system)[hosts-file]: Use helper to warn deprecated field.
> (operating-system-default-essential-services)
> (hurd-default-essential-services): Use hosts-service-type.
> (local-host-aliases): Return a list of host-entry records.
> (default-/etc/hosts): Remove procedure.
> (operating-system-etc-service): Remove hosts file.
> * doc/guix.texi (operating-system Reference)
> (Networking Services) (Virtualization Services): Rewrite documentation
> entries to use hosts-service-type.
> * gnu/tests/ganeti.scm: Use hosts-service-type extension.
> ---
>
> WIP, the ganeti tests fail because host-name is added as an alias of localhost.

Before these patches, ‘host-name’ was already an alias of ‘localhost’.
Is there something else interfering?

> +    (simple-service 'block-facebook-hosts hosts-service-type
> +                    (let ((host-pairs
> +                            (filter-map
> +                              (lambda (x)
> +                                (and (not (or (string-null? x)
> +                                              (string-prefix? "#" x)))
> +	                             (remove string-null?
> +                                             (string-split
> +                                               x
> +                                               char-set:whitespace))))
> +                              (string-split %facebook-host-aliases #\newline))))
> +                      (map (match-lambda
> +                             ((addr name)
> +                              (host addr name)))
> +                           host-pairs)))

It doesn’t matter because it’s removed in the commit that follows I
think using ‘string-tokenize’ instead of ‘string-split’ may bring
simplifications.

> +++ b/gnu/system.scm
> @@ -14,6 +14,7 @@
>  ;;; Copyright © 2020, 2022 Efraim Flashner <efraim <at> flashner.co.il>
>  ;;; Copyright © 2021 Maxime Devos <maximedevos <at> telenet.be>
>  ;;; Copyright © 2021 raid5atemyhomework <raid5atemyhomework <at> protonmail.com>
> +;;; Copyright © 2023 Bruno Victal <mirai <at> makinata.eu>
>  ;;;
>  ;;; This file is part of GNU Guix.
>  ;;;
> @@ -31,6 +32,7 @@
>  ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
>  
>  (define-module (gnu system)
> +  #:use-module (guix discovery)

Do we really need this module?

Otherwise LGTM.

Ludo’.

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