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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 installer services)
#:use-module (guix records)
#:use-module (srfi srfi-1)
#:export (system-service?
system-service-name
system-service-type
system-service-snippet
desktop-system-service?
%system-services
system-services->configuration))
(define-record-type* <system-service>
system-service make-system-service
system-service?
(name system-service-name) ;string
(type system-service-type) ;symbol
(snippet system-service-snippet)) ;sexp
;; This is the list of desktop environments supported as services.
(define %system-services
(let-syntax ((desktop-environment (syntax-rules ()
((_ fields ...)
(system-service
(type 'desktop)
fields ...)))))
(list
(desktop-environment
(name "GNOME")
(snippet '(service gnome-desktop-service-type)))
(desktop-environment
(name "Xfce")
;; TODO: Use 'xfce-desktop-service-type' when the 'guix' package provides
;; it with a default value.
(snippet '(xfce-desktop-service)))
(desktop-environment
(name "MATE")
(snippet '(service mate-desktop-service-type)))
(desktop-environment
(name "Enlightenment")
(snippet '(service enlightenment-desktop-service-type))))))
(define (desktop-system-service? service)
"Return true if SERVICE is a desktop environment service."
(eq? 'desktop (system-service-type service)))
(define (system-services->configuration services)
"Return the configuration field for SERVICES."
(let* ((snippets (map system-service-snippet services))
(desktop? (find desktop-system-service? services))
(base (if desktop?
'%desktop-services
'%base-services)))
(if (null? snippets)
`((services ,base))
`((services (cons* ,@snippets ,base))))))
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