Hello!
Felix Lechner via "Development of GNU Guix and the GNU System
distribution." <guix-devel@gnu.org> skribis:
> (define (garbage-collector-shepherd-service config)
FWIW, if it can help, I have something very similar in my config:
--8<---------------cut here---------------start------------->8---
(define %gc-service
(simple-service
'gc shepherd-root-service-type
(list (shepherd-service
(provision '(gc))
(requirement '(user-processes))
(modules '((shepherd service timer)))
(start #~(make-timer-constructor
(calendar-event #:minutes '(0))
(command '("/run/current-system/profile/bin/guix" "gc"
"-F2G")
#:user "ludo")))
(stop #~(make-timer-destructor))
(documentation "Run the garbage collector (GC).")
(actions
(list (shepherd-action
(name 'trigger)
(documentation "GC!")
(procedure #~trigger-timer))))))))
--8<---------------cut here---------------end--------------->8---
… and I add ‘%gc-service’ to my ‘services’ field.
Works as advertised:
--8<---------------cut here---------------start------------->8---
$ sudo /run/current-system/profile/bin/herd status gc
Password:
Status of gc:
It is running since Mon 27 May 2024 08:39:28 AM CEST (5 days ago).
Timed service.
Periodically running as "ludo": /run/current-system/profile/bin/guix gc -F2G.
It is enabled.
Provides: gc.
Requires: user-processes.
Will be respawned.
Recent runs:
2024-05-31 21:00:00 Process exited successfully after 0 seconds.
2024-05-31 22:00:00 Process exited successfully after 0 seconds.
2024-05-31 23:00:00 Process exited successfully after 0 seconds.
2024-06-01 00:00:00 Process exited successfully after 0 seconds.
2024-06-01 01:00:00 Process exited successfully after 0 seconds.
2024-06-01 11:00:00 Process exited successfully after 0 seconds.
2024-06-01 12:00:00 Process exited successfully after 0 seconds.
2024-06-01 13:00:00 Process exited successfully after 0 seconds.
2024-06-01 14:00:00 Process exited successfully after 0 seconds.
2024-06-01 15:00:00 Process exited successfully after 0 seconds.
Recent messages:
2024-06-01 15:00:00 guix gc: already 4169.06 MiBs available on /gnu/store,
nothing to do
Upcoming timer alarms:
04:00:00 PM (in 37 minutes)
05:00:00 PM (in 97 minutes)
06:00:00 PM (in 3 hours)
07:00:00 PM (in 4 hours)
08:00:00 PM (in 5 hours)
--8<---------------cut here---------------end--------------->8---
HTH!
Ludo’.
