home-manager/modules/services/wlsunset.nix
Matthias Riße 33407189c1
wlsunset: add module
This adds the wlsunset module, a program for day/night gamma
adjustments on wayland.

Fixes #1625
2020-12-01 21:46:46 +01:00

97 lines
2.3 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let cfg = config.services.wlsunset;
in {
meta.maintainers = [ maintainers.matrss ];
options.services.wlsunset = {
enable = mkEnableOption "Whether to enable wlsunset.";
package = mkOption {
type = types.package;
default = pkgs.wlsunset;
defaultText = "pkgs.wlsunset";
description = ''
wlsunset derivation to use.
'';
};
latitude = mkOption {
type = types.str;
description = ''
Your current latitude, between <literal>-90.0</literal> and
<literal>90.0</literal>.
'';
};
longitude = mkOption {
type = types.str;
description = ''
Your current longitude, between <literal>-180.0</literal> and
<literal>180.0</literal>.
'';
};
temperature = {
day = mkOption {
type = types.int;
default = 6500;
description = ''
Colour temperature to use during the day, in Kelvin (K).
This value must be greater than <literal>temperature.night</literal>.
'';
};
night = mkOption {
type = types.int;
default = 4000;
description = ''
Colour temperature to use during the night, in Kelvin (K).
This value must be smaller than <literal>temperature.day</literal>.
'';
};
};
gamma = mkOption {
type = types.str;
default = "1.0";
description = ''
Gamma value to use.
'';
};
systemdTarget = mkOption {
type = types.str;
default = "graphical-session.target";
description = ''
Systemd target to bind to.
'';
};
};
config = mkIf cfg.enable {
systemd.user.services.wlsunset = {
Unit = {
Description = "Day/night gamma adjustments for Wayland compositors.";
PartOf = [ "graphical-session.target" ];
};
Service = {
ExecStart = let
args = [
"-l ${cfg.latitude}"
"-L ${cfg.longitude}"
"-t ${toString cfg.temperature.night}"
"-T ${toString cfg.temperature.day}"
"-g ${cfg.gamma}"
];
in "${cfg.package}/bin/wlsunset ${concatStringsSep " " args}";
};
Install = { WantedBy = [ cfg.systemdTarget ]; };
};
};
}