guix-devel/gnu/services/colord.scm

73 lines
2.8 KiB
Scheme

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
;;;
;;; 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 services colord)
#:use-module (gnu services)
#:use-module (gnu system shadow)
#:use-module (gnu packages gnome)
#:use-module (ice-9 match)
#:use-module (guix monads)
#:use-module (guix store)
#:use-module (guix gexp)
#:export (colord-service))
;;; Commentary:
;;;
;;; This module provides service definitions for the colord color management
;;; service.
;;;
;;; Code:
(define* (colord-service #:key (colord colord))
"Return a service that runs @command{colord}, a system service with a D-Bus
interface to manage the color profiles of input and output devices such as
screens and scanners. It is notably used by the GNOME Color Manager graphical
tool. See @uref{http://www.freedesktop.org/software/colord/, the colord web
site} for more information."
(with-monad %store-monad
(return
(service
(documentation "Run the colord color management service.")
(provision '(colord-daemon))
(requirement '(dbus-system udev))
(start #~(make-forkexec-constructor
(list (string-append #$colord "/libexec/colord"))))
(stop #~(make-kill-destructor))
(activate #~(begin
(use-modules (guix build utils))
(mkdir-p "/var/lib/colord")
(let ((user (getpwnam "colord")))
(chown "/var/lib/colord"
(passwd:uid user) (passwd:gid user)))))
(user-groups (list (user-group
(name "colord")
(system? #t))))
(user-accounts (list (user-account
(name "colord")
(group "colord")
(system? #t)
(comment "colord daemon user")
(home-directory "/var/empty")
(shell
"/run/current-system/profile/sbin/nologin"))))))))
;;; colord.scm ends here