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home-manager/modules/services/xscreensaver.nix
Sefa Eyeoglu 6c2b79403e
treewide: use graphical-session.target for GUI services (#5785)
As per systemd.special(7)[0] graphical-session-pre.target is strictly
for units that set up things for a graphical session. Most notably,
these are usually started *before* the compositor/session is actually
ready.

While Home Manager's current implementation of graphical-session.target
allows these units to work regardless of what systemd.special(7)
specifies, other setups like ones with uwsm[1] do not allow these units
to start properly.

[0]: https://www.freedesktop.org/software/systemd/man/latest/systemd.special.html#graphical-session-pre.target
[1]: https://github.com/Vladimir-csp/uwsm
2025-03-07 18:09:12 -06:00

69 lines
1.7 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.xscreensaver;
in {
meta.maintainers = [ maintainers.rycee ];
options = {
services.xscreensaver = {
enable = mkEnableOption "XScreenSaver";
settings = mkOption {
type = with types; attrsOf (either bool (either int str));
default = { };
example = {
mode = "blank";
lock = false;
fadeTicks = 20;
};
description = ''
The settings to use for XScreenSaver.
'';
};
package = mkOption {
type = with types; package;
default = pkgs.xscreensaver;
defaultText = lib.literalExpression "pkgs.xscreensaver";
description = "Which xscreensaver package to use.";
};
};
};
config = mkIf cfg.enable {
assertions = [
(lib.hm.assertions.assertPlatform "services.xscreensaver" pkgs
lib.platforms.linux)
];
# To make the xscreensaver-command tool available.
home.packages = [ cfg.package ];
xresources.properties =
mapAttrs' (n: nameValuePair "xscreensaver.${n}") cfg.settings;
systemd.user.services.xscreensaver = {
Unit = {
Description = "XScreenSaver";
After = [ "graphical-session.target" ];
PartOf = [ "graphical-session.target" ];
# Make sure the service is restarted if the settings change.
X-Restart-Triggers =
[ (builtins.hashString "md5" (builtins.toJSON cfg.settings)) ];
};
Service = {
ExecStart = "${cfg.package}/bin/xscreensaver -no-splash";
Environment = [ "PATH=${makeBinPath [ cfg.package ]}" ];
};
Install = { WantedBy = [ "graphical-session.target" ]; };
};
};
}