152 lines
3.8 KiB
Nix
152 lines
3.8 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let cfg = config.services.wlsunset;
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in {
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meta.maintainers = [ hm.maintainers.matrss ];
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options.services.wlsunset = {
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enable = mkEnableOption "wlsunset";
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package = mkOption {
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type = with types; package;
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default = pkgs.wlsunset;
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defaultText = "pkgs.wlsunset";
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description = ''
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wlsunset derivation to use.
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'';
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};
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latitude = mkOption {
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type = with types; nullOr (either str (either float int));
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default = null;
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example = -74.3;
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description = ''
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Your current latitude, between `-90.0` and
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`90.0`.
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'';
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};
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longitude = mkOption {
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type = with types; nullOr (either str (either float int));
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default = null;
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example = 12.5;
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description = ''
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Your current longitude, between `-180.0` and
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`180.0`.
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'';
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};
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temperature = {
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day = mkOption {
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type = with types; int;
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default = 6500;
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description = ''
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Colour temperature to use during the day, in Kelvin (K).
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This value must be greater than `temperature.night`.
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'';
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};
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night = mkOption {
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type = with types; int;
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default = 4000;
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description = ''
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Colour temperature to use during the night, in Kelvin (K).
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This value must be smaller than `temperature.day`.
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'';
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};
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};
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gamma = mkOption {
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type = with types; (either str (either float int));
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default = 1.0;
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example = 0.6;
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description = ''
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Gamma value to use.
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'';
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};
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output = mkOption {
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type = with types; nullOr str;
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default = null;
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description = ''
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Name of output to use, by default all outputs are used.
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'';
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};
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sunrise = mkOption {
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type = with types; nullOr str;
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default = null;
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example = "06:30";
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description = ''
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The time when the sun rises (in 24 hour format).
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'';
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};
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sunset = mkOption {
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type = with types; nullOr str;
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default = null;
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example = "18:00";
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description = ''
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The time when the sun sets (in 24 hour format).
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'';
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};
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systemdTarget = mkOption {
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type = with types; str;
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default = "graphical-session.target";
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description = ''
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Systemd target to bind to.
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'';
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};
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};
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config = mkIf cfg.enable {
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assertions = [
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(lib.hm.assertions.assertPlatform "services.wlsunset" pkgs
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lib.platforms.linux)
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{
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assertion = (cfg.sunrise != null || cfg.sunset != null)
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!= (cfg.latitude != null || cfg.longitude != null);
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message =
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"Either `sunrise` and `sunset` together or `longitude` and `latitude` together must be set for wlsunset";
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}
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{
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assertion = (cfg.sunrise != null) == (cfg.sunset != null);
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message =
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"Both `sunset` and `sunrise` together must be set for wlsunset";
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}
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{
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assertion = (cfg.latitude != null) == (cfg.longitude != null);
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message =
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"Both `latitude and `longitude` together must be set for wlsunset";
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}
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];
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systemd.user.services.wlsunset = {
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Unit = {
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Description = "Day/night gamma adjustments for Wayland compositors.";
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PartOf = [ "graphical-session.target" ];
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};
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Service = {
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ExecStart = let
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args = cli.toGNUCommandLineShell { } {
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t = cfg.temperature.night;
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T = cfg.temperature.day;
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g = cfg.gamma;
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l = cfg.latitude;
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L = cfg.longitude;
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S = cfg.sunrise;
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s = cfg.sunset;
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o = cfg.output;
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};
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in "${cfg.package}/bin/wlsunset ${args}";
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};
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Install = { WantedBy = [ cfg.systemdTarget ]; };
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};
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};
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}
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