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redshift: add module
This module is adapted from the Nixpkgs version.
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@ -25,6 +25,7 @@ let
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./services/keepassx.nix
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./services/keepassx.nix
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./services/network-manager-applet.nix
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./services/network-manager-applet.nix
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./services/random-background.nix
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./services/random-background.nix
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./services/redshift.nix
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./services/taffybar.nix
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./services/taffybar.nix
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./services/tahoe-lafs.nix
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./services/tahoe-lafs.nix
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./services/udiskie.nix
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./services/udiskie.nix
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124
modules/services/redshift.nix
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124
modules/services/redshift.nix
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@ -0,0 +1,124 @@
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# Adapted from Nixpkgs.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.redshift;
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in {
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options.services.redshift = {
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enable = mkOption {
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type = types.bool;
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default = false;
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example = true;
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description = ''
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Enable Redshift to change your screen's colour temperature depending on
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the time of day.
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'';
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};
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latitude = mkOption {
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type = types.str;
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description = ''
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Your current latitude, between
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<literal>-90.0</literal> and <literal>90.0</literal>.
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'';
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};
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longitude = mkOption {
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type = types.str;
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description = ''
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Your current longitude, between
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between <literal>-180.0</literal> and <literal>180.0</literal>.
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'';
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};
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temperature = {
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day = mkOption {
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type = types.int;
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default = 5500;
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description = ''
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Colour temperature to use during the day, between
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<literal>1000</literal> and <literal>25000</literal> K.
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'';
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};
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night = mkOption {
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type = types.int;
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default = 3700;
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description = ''
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Colour temperature to use at night, between
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<literal>1000</literal> and <literal>25000</literal> K.
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'';
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};
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};
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brightness = {
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day = mkOption {
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type = types.str;
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default = "1";
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description = ''
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Screen brightness to apply during the day,
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between <literal>0.1</literal> and <literal>1.0</literal>.
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'';
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};
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night = mkOption {
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type = types.str;
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default = "1";
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description = ''
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Screen brightness to apply during the night,
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between <literal>0.1</literal> and <literal>1.0</literal>.
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'';
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};
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};
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package = mkOption {
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type = types.package;
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default = pkgs.redshift;
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defaultText = "pkgs.redshift";
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description = ''
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redshift derivation to use.
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'';
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};
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extraOptions = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [ "-v" "-m randr" ];
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description = ''
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Additional command-line arguments to pass to
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<command>redshift</command>.
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'';
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};
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};
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config = mkIf cfg.enable {
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systemd.user.services.redshift = {
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Unit = {
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Description = "Redshift colour temperature adjuster";
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};
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Install = {
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WantedBy = [ "graphical-session.target" ];
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};
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Service = {
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ExecStart =
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let
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args = [
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"-l ${cfg.latitude}:${cfg.longitude}"
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"-t ${toString cfg.temperature.day}:${toString cfg.temperature.night}"
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"-b ${toString cfg.brightness.day}:${toString cfg.brightness.night}"
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] ++ cfg.extraOptions;
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in
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"${cfg.package}/bin/redshift ${concatStringsSep " " args}";
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RestartSec = 3;
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Restart = "always";
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};
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};
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};
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}
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