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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Reily Siegel <mail@reilysiegel.com>
;;; Copyright © 2024 Nicolas Graves <ngraves@ngraves.fr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu home services guix)
#:use-module (gnu home services)
#:use-module (guix channels)
#:use-module (guix gexp)
#:use-module (ice-9 pretty-print)
#:use-module (srfi srfi-1)
#:export (home-channels-service-type))
(define (extend-channel-list default new)
"Prepend the channels in NEW by the channels in DEFAULT if their
channel-name is not in NEW."
(fold-right
(lambda (channel acc)
(if (member (channel-name channel) (map channel-name acc))
acc
(cons channel acc)))
new default))
(define (channels-xdg-files channels)
`(("guix/channels.scm"
,(plain-file
"channels.scm"
(call-with-output-string
(lambda (port)
(pretty-print (cons 'list (map channel->code channels)) port)))))))
(define home-channels-service-type
(service-type
(name 'home-channels)
(default-value %default-channels)
(compose concatenate)
(extend extend-channel-list)
(extensions
(list (service-extension home-xdg-configuration-files-service-type
channels-xdg-files)))
(description "Manages the per-user Guix channels specification.")))
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