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02/04: services: mpd: Add an 'update' action to trigger a database updat
From: |
guix-commits |
Subject: |
02/04: services: mpd: Add an 'update' action to trigger a database update. |
Date: |
Tue, 25 Jul 2023 17:06:07 -0400 (EDT) |
apteryx pushed a commit to branch master
in repository guix.
commit e1070ee16036f6dfb84c44aea4119e4db770356b
Author: Maxim Cournoyer <maxim.cournoyer@gmail.com>
AuthorDate: Tue Apr 25 17:28:21 2023 -0400
services: mpd: Add an 'update' action to trigger a database update.
* gnu/services/audio.scm (mpd-shepherd-service): Register a new update
action.
* doc/guix.texi (Audio Services): Document it.
---
doc/guix.texi | 10 ++++++++++
gnu/services/audio.scm | 11 +++++++++++
2 files changed, 21 insertions(+)
diff --git a/doc/guix.texi b/doc/guix.texi
index b5eca57d75..ea1e391a6f 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -34251,6 +34251,16 @@ The following example shows how one might run
@code{mpd} as user
(port "6666")))
@end lisp
+Most MPD clients will trigger a database update upon connecting, but you
+can also use the @code{update} action do to so:
+
+@example
+herd update mpd
+@end example
+
+All the MPD configuration fields are documented below, and a more
+complex example follows.
+
@defvar mpd-service-type
The service type for @command{mpd}
@end defvar
diff --git a/gnu/services/audio.scm b/gnu/services/audio.scm
index 8c061da47f..6e4ce3f9fb 100644
--- a/gnu/services/audio.scm
+++ b/gnu/services/audio.scm
@@ -620,6 +620,17 @@ appended to the configuration.")
(format #t
"Issued SIGHUP to Service MPD (PID ~a)."
pid))
+ (format #t "Service MPD is not running.")))))
+ (shepherd-action
+ (name 'update)
+ (documentation "Request MPD to update its music database.")
+ (procedure
+ #~(lambda (pid)
+ (if pid
+ (begin
+ (invoke #$(file-append mpd-mpc "/bin/mpc") "update")
+ (format #t "Database update requested for service \
+MPD (PID ~a)." pid))
(format #t "Service MPD is not running.")))))))))))
(define (mpd-accounts config)