1
0
Fork 0
mirror of https://github.com/nix-community/home-manager synced 2024-12-25 03:09:47 +01:00
home-manager/modules/services/redshift.nix
2017-06-26 18:42:27 +02:00

126 lines
3 KiB
Nix

# Adapted from Nixpkgs.
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.redshift;
in {
options.services.redshift = {
enable = mkOption {
type = types.bool;
default = false;
example = true;
description = ''
Enable Redshift to change your screen's colour temperature depending on
the time of day.
'';
};
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
between <literal>-180.0</literal> and <literal>180.0</literal>.
'';
};
temperature = {
day = mkOption {
type = types.int;
default = 5500;
description = ''
Colour temperature to use during the day, between
<literal>1000</literal> and <literal>25000</literal> K.
'';
};
night = mkOption {
type = types.int;
default = 3700;
description = ''
Colour temperature to use at night, between
<literal>1000</literal> and <literal>25000</literal> K.
'';
};
};
brightness = {
day = mkOption {
type = types.str;
default = "1";
description = ''
Screen brightness to apply during the day,
between <literal>0.1</literal> and <literal>1.0</literal>.
'';
};
night = mkOption {
type = types.str;
default = "1";
description = ''
Screen brightness to apply during the night,
between <literal>0.1</literal> and <literal>1.0</literal>.
'';
};
};
package = mkOption {
type = types.package;
default = pkgs.redshift;
defaultText = "pkgs.redshift";
description = ''
redshift derivation to use.
'';
};
extraOptions = mkOption {
type = types.listOf types.str;
default = [];
example = [ "-v" "-m randr" ];
description = ''
Additional command-line arguments to pass to
<command>redshift</command>.
'';
};
};
config = mkIf cfg.enable {
systemd.user.services.redshift = {
Unit = {
Description = "Redshift colour temperature adjuster";
After = [ "graphical-session-pre.target" ];
PartOf = [ "graphical-session.target" ];
};
Install = {
WantedBy = [ "graphical-session.target" ];
};
Service = {
ExecStart =
let
args = [
"-l ${cfg.latitude}:${cfg.longitude}"
"-t ${toString cfg.temperature.day}:${toString cfg.temperature.night}"
"-b ${toString cfg.brightness.day}:${toString cfg.brightness.night}"
] ++ cfg.extraOptions;
in
"${cfg.package}/bin/redshift ${concatStringsSep " " args}";
RestartSec = 3;
Restart = "always";
};
};
};
}