waypaper systemd service

[sullyj3]

I was using the swaybg systemd service recommended on the wiki. I decided I wanted to be able to set my wallpaper graphically, so I installed waypaper (basically nitrogen for wayland). waypaper --restore from the cli works great.

▷ waypaper --restore
swaybg: no process found
Sent command to set wallpaper was set with swaybg
2024-06-25 18:12:09 - [main.c:282] Found config * for output HDMI-A-1 ((null))

However, I'm running into issues trying to turn it into a systemd service. I created waypaper-restore.service in ~/.config/systemd/user, and linked it into niri.service.wants

[Unit]
PartOf=graphical-session.target
After=graphical-session.target
Requisite=graphical-session.target

[Service]
Type=oneshot
ExecStart=/usr/bin/env waypaper --restore

It seems like it's maybe running too early or something?

▷ journalctl --user -u waypaper-restore.service|tail -5
Jun 25 17:41:14 phrygian systemd[1557]: Starting waypaper-restore.service...
Jun 25 17:41:14 phrygian env[3203]: swaybg: no process found
Jun 25 17:41:14 phrygian env[3207]: 2024-06-25 17:41:14 - [main.c:562] Unable to connect to the compositor. If your compositor is running, check or set the WAYLAND_DISPLAY environment variable.
Jun 25 17:41:14 phrygian env[3156]: Sent command to set wallpaper was set with swaybg
Jun 25 17:41:14 phrygian systemd[1557]: Finished waypaper-restore.service.

As a long shot I tried setting Environment=WAYLAND_DISPLAY=wayland-1 (the output of $echo WAYLAND_DISPLAY) under [Service], but it didn't work. That makes sense, niri is setting it anyway, so it should be available when the service runs.

Any ideas how to get this working?

[kls1991]

Try After=niri.service ?
I have this line in my waybar service

[sullyj3]

hmm, I'll give that a shot

[YaLTeR]

Not sure, if swaybg works then the environment should be there.

[sullyj3]

yeah, I found this very confusing for that reason

[jgregoire]

Mine looks like

[Unit]
PartOf=graphical-session.target
After=graphical-session.target
Requisite=graphical-session.target

[Service]
ExecStart=niri msg action spawn -- waypaper --restore --random

This has worked reliably for me so far.