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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Peter Mikkelsen <petermikkelsen10@gmail.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 audio)
#:use-module (guix gexp)
#:use-module (gnu services)
#:use-module (gnu services shepherd)
#:use-module (gnu packages mpd)
#:use-module (guix records)
#:use-module (ice-9 match)
#:export (mpd-configuration
mpd-configuration?
mpd-service-type))
;;; Commentary:
;;;
;;; Audio related services
;;;
;;; Code:
(define-record-type* <mpd-configuration>
mpd-configuration make-mpd-configuration
mpd-configuration?
(user mpd-configuration-user
(default "mpd"))
(music-dir mpd-configuration-music-dir
(default "~/Music"))
(playlist-dir mpd-configuration-playlist-dir
(default "~/.mpd/playlists"))
(port mpd-configuration-port
(default "6600"))
(address mpd-configuration-address
(default "any"))
(pid-file mpd-configuration-pid-file
(default "/var/run/mpd.pid")))
(define (mpd-config->file config)
(apply
mixed-text-file "mpd.conf"
"audio_output {\n"
" type \"pulse\"\n"
" name \"MPD\"\n"
"}\n"
(map (match-lambda
((config-name config-val)
(string-append config-name " \"" (config-val config) "\"\n")))
`(("user" ,mpd-configuration-user)
("music_directory" ,mpd-configuration-music-dir)
("playlist_directory" ,mpd-configuration-playlist-dir)
("port" ,mpd-configuration-port)
("bind_to_address" ,mpd-configuration-address)
("pid_file" ,mpd-configuration-pid-file)))))
(define (mpd-service config)
(shepherd-service
(documentation "Run the MPD (Music Player Daemon)")
(provision '(mpd))
(start #~(make-forkexec-constructor
(list #$(file-append mpd "/bin/mpd")
"--no-daemon"
#$(mpd-config->file config))
#:pid-file #$(mpd-configuration-pid-file config)))
(stop #~(make-kill-destructor))))
(define mpd-service-type
(service-type
(name 'mpd)
(extensions
(list (service-extension shepherd-root-service-type
(compose list mpd-service))))
(default-value (mpd-configuration))))
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