From 970cb5ceceaa85765230a9f896a43783cdcb4e6c Mon Sep 17 00:00:00 2001
From: Robert Smith <robertsmith@posteo.net>
Date: Tue, 5 Nov 2019 23:46:46 +0100
Subject: [PATCH] services: mpd: Connect to the user's PulseAudio socket.

* gnu/services/audio.scm (mpd-shepherd-service): Set the XDG_RUNTIME_DIR
environment variable.

Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr>
---
 gnu/services/audio.scm | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gnu/services/audio.scm b/gnu/services/audio.scm
index 471c5fd95f..345d8225b2 100644
--- a/gnu/services/audio.scm
+++ b/gnu/services/audio.scm
@@ -140,6 +140,13 @@ (define (mpd-shepherd-service config)
                    "--no-daemon"
                    #$(mpd-config->file config))
              #:pid-file #$(mpd-file-name config "pid")
+             #:environment-variables
+             ;; Required to detect PulseAudio when run under a user account.
+             '(#$(string-append
+                   "XDG_RUNTIME_DIR=/run/user/"
+                   (number->string
+                     (passwd:uid
+                       (getpwnam (mpd-configuration-user config))))))
              #:log-file #$(mpd-file-name config "log")))
    (stop  #~(make-kill-destructor))))