;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2018, 2020 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2020 Liliana Marie Prikler <liliana.prikler@gmail.com>
+;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
#:use-module (gnu services configuration)
#:use-module (gnu services shepherd)
#:use-module (gnu services)
+ #:use-module (gnu system pam)
#:use-module (gnu system shadow)
+ #:use-module (guix diagnostics)
#:use-module (guix gexp)
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (guix store)
+ #:use-module (guix ui)
+ #:use-module (gnu packages audio)
+ #:use-module (gnu packages linux)
#:use-module (gnu packages pulseaudio)
#:use-module (ice-9 match)
+ #:use-module (srfi srfi-1)
#:export (alsa-configuration
- alsa-service-type))
+ alsa-service-type
+
+ pulseaudio-configuration
+ pulseaudio-service-type
+
+ ladspa-configuration
+ ladspa-service-type))
;;; Commentary:
;;;
(define-record-type* <alsa-configuration>
alsa-configuration make-alsa-configuration alsa-configuration?
+ (alsa-plugins alsa-configuration-alsa-plugins ;file-like
+ (default alsa-plugins))
(pulseaudio? alsa-configuration-pulseaudio? ;boolean
(default #t))
(extra-options alsa-configuration-extra-options ;string
(default "")))
-(define (alsa-config-file config)
- "Return the ALSA configuration file corresponding to CONFIG."
- (plain-file "asound.conf"
- (string-append "# Generated by 'alsa-service'.\n\n"
- (if (alsa-configuration-pulseaudio? config)
- "# Use PulseAudio by default
+(define alsa-config-file
+ ;; Return the ALSA configuration file.
+ (match-lambda
+ (($ <alsa-configuration> alsa-plugins pulseaudio? extra-options)
+ (apply mixed-text-file "asound.conf"
+ `("# Generated by 'alsa-service'.\n\n"
+ ,@(if pulseaudio?
+ `("# Use PulseAudio by default
+pcm_type.pulse {
+ lib \"" ,#~(string-append #$alsa-plugins:pulseaudio
+ "/lib/alsa-lib/libasound_module_pcm_pulse.so") "\"
+}
+
+ctl_type.pulse {
+ lib \"" ,#~(string-append #$alsa-plugins:pulseaudio
+ "/lib/alsa-lib/libasound_module_ctl_pulse.so") "\"
+}
+
pcm.!default {
type pulse
fallback \"sysdefault\"
ctl.!default {
type pulse
fallback \"sysdefault\"
-}
-"
- "")
- (alsa-configuration-extra-options config))))
+}\n\n")
+ '())
+ ,extra-options)))))
(define (alsa-etc-service config)
(list `("asound.conf" ,(alsa-config-file config))))
(default-value (alsa-configuration))
(description "Configure low-level Linux sound support, ALSA.")))
+\f
+;;;
+;;; PulseAudio
+;;;
+
+(define-record-type* <pulseaudio-configuration>
+ pulseaudio-configuration make-pulseaudio-configuration
+ pulseaudio-configuration?
+ (client-conf pulseaudio-configuration-client-conf
+ (default '()))
+ (daemon-conf pulseaudio-configuration-daemon-conf
+ ;; Flat volumes may cause unpleasant experiences to users
+ ;; when applications inadvertently max out the system volume
+ ;; (see e.g. <https://bugs.gnu.org/38172>).
+ (default '((flat-volumes . no))))
+ (script-file pulseaudio-configuration-script-file
+ (default (file-append pulseaudio "/etc/pulse/default.pa")))
+ (extra-script-files pulseaudio-configuration-extra-script-files
+ (default '()))
+ (system-script-file pulseaudio-configuration-system-script-file
+ (default
+ (file-append pulseaudio "/etc/pulse/system.pa"))))
+
+(define (pulseaudio-conf-entry arg)
+ (match arg
+ ((key . value)
+ (format #f "~a = ~s~%" key value))
+ ((? string? _)
+ (string-append arg "\n"))))
+
+(define pulseaudio-environment
+ (match-lambda
+ (($ <pulseaudio-configuration> client-conf daemon-conf default-script-file)
+ ;; These config files kept at a fixed location, so that the following
+ ;; environment values are stable and do not require the user to reboot to
+ ;; effect their PulseAudio configuration changes.
+ '(("PULSE_CONFIG" . "/etc/pulse/daemon.conf")
+ ("PULSE_CLIENTCONFIG" . "/etc/pulse/client.conf")))))
+
+(define (extra-script-files->file-union extra-script-files)
+ "Return a G-exp obtained by processing EXTRA-SCRIPT-FILES with FILE-UNION."
+
+ (define (file-like->name file)
+ (match file
+ ((? local-file?)
+ (local-file-name file))
+ ((? plain-file?)
+ (plain-file-name file))
+ ((? computed-file?)
+ (computed-file-name file))
+ (_ (leave (G_ "~a is not a local-file, plain-file or \
+computed-file object~%") file))))
+
+ (define (assert-pulseaudio-script-file-name name)
+ (unless (string-suffix? ".pa" name)
+ (leave (G_ "`~a' lacks the required `.pa' file name extension~%") name))
+ name)
+
+ (let ((labels (map (compose assert-pulseaudio-script-file-name
+ file-like->name)
+ extra-script-files)))
+ (file-union "default.pa.d" (zip labels extra-script-files))))
+
+(define (append-include-directive script-file)
+ "Append an include directive to source scripts under /etc/pulse/default.pa.d."
+ (computed-file "default.pa"
+ #~(begin
+ (use-modules (ice-9 textual-ports))
+ (define script-text
+ (call-with-input-file #$script-file get-string-all))
+ (call-with-output-file #$output
+ (lambda (port)
+ (format port (string-append script-text "
+### Added by Guix to include scripts specified in extra-script-files.
+.nofail
+.include /etc/pulse/default.pa.d~%")))))))
+
+(define pulseaudio-etc
+ (match-lambda
+ (($ <pulseaudio-configuration> client-conf daemon-conf default-script-file
+ extra-script-files system-script-file)
+ `(("pulse"
+ ,(file-union
+ "pulse"
+ `(("default.pa"
+ ,(if (null? extra-script-files)
+ default-script-file
+ (append-include-directive default-script-file)))
+ ("system.pa" ,system-script-file)
+ ,@(if (null? extra-script-files)
+ '()
+ `(("default.pa.d" ,(extra-script-files->file-union
+ extra-script-files))))
+ ,@(if (null? daemon-conf)
+ '()
+ `(("daemon.conf"
+ ,(apply mixed-text-file "daemon.conf"
+ "default-script-file = " default-script-file "\n"
+ (map pulseaudio-conf-entry daemon-conf)))))
+ ,@(if (null? client-conf)
+ '()
+ `(("client.conf"
+ ,(apply mixed-text-file "client.conf"
+ (map pulseaudio-conf-entry client-conf))))))))))))
+
+(define pulseaudio-service-type
+ (service-type
+ (name 'pulseaudio)
+ (extensions
+ (list (service-extension session-environment-service-type
+ pulseaudio-environment)
+ (service-extension etc-service-type pulseaudio-etc)
+ (service-extension udev-service-type (const (list pulseaudio)))))
+ (default-value (pulseaudio-configuration))
+ (description "Configure PulseAudio sound support.")))
+
+\f
+;;;
+;;; LADSPA
+;;;
+
+(define-record-type* <ladspa-configuration>
+ ladspa-configuration make-ladspa-configuration
+ ladspa-configuration?
+ (plugins ladspa-plugins (default '())))
+
+(define (ladspa-environment config)
+ ;; Define this variable in the global environment such that
+ ;; pulseaudio swh-plugins (and similar LADSPA plugins) work.
+ `(("LADSPA_PATH" .
+ (string-join
+ ',(map (lambda (package) (file-append package "/lib/ladspa"))
+ (ladspa-plugins config))
+ ":"))))
+
+(define ladspa-service-type
+ (service-type
+ (name 'ladspa)
+ (extensions
+ (list (service-extension session-environment-service-type
+ ladspa-environment)))
+ (default-value (ladspa-configuration))
+ (description "Configure LADSPA plugins.")))
+
;;; sound.scm ends here
HCoop / jackhill / guix / guix.git / blobdiff