diff options
Diffstat (limited to 'nixos/modules/services/x11/clight.nix')
-rw-r--r-- | nixos/modules/services/x11/clight.nix | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/nixos/modules/services/x11/clight.nix b/nixos/modules/services/x11/clight.nix new file mode 100644 index 0000000000000..6ec395bb05eca --- /dev/null +++ b/nixos/modules/services/x11/clight.nix @@ -0,0 +1,115 @@ +{ config, pkgs, lib, ... }: + +with lib; + +let + cfg = config.services.clight; + + toConf = v: + if builtins.isFloat v then toString v + else if isInt v then toString v + else if isBool v then boolToString v + else if isString v then ''"${escape [''"''] v}"'' + else if isList v then "[ " + concatMapStringsSep ", " toConf v + " ]" + else abort "clight.toConf: unexpected type (v = ${v})"; + + clightConf = pkgs.writeText "clight.conf" + (concatStringsSep "\n" (mapAttrsToList + (name: value: "${toString name} = ${toConf value};") + (filterAttrs + (_: value: value != null) + cfg.settings))); +in { + options.services.clight = { + enable = mkOption { + type = types.bool; + default = false; + description = '' + Whether to enable clight or not. + ''; + }; + + 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. + ''; + }; + }; + + settings = let + validConfigTypes = with types; either int (either str (either bool float)); + in mkOption { + type = with types; attrsOf (nullOr (either validConfigTypes (listOf validConfigTypes))); + default = {}; + example = { captures = 20; gamma_long_transition = true; ac_capture_timeouts = [ 120 300 60 ]; }; + description = '' + Additional configuration to extend clight.conf. See + <link xlink:href="https://github.com/FedeDP/Clight/blob/master/Extra/clight.conf"/> for a + sample configuration file. + ''; + }; + }; + + config = mkIf cfg.enable { + boot.kernelModules = [ "i2c_dev" ]; + environment.systemPackages = with pkgs; [ clight clightd ]; + services.dbus.packages = with pkgs; [ clight clightd ]; + services.upower.enable = true; + + services.clight.settings = { + gamma_temp = with cfg.temperature; mkDefault [ day night ]; + } // (optionalAttrs (config.location.provider == "manual") { + latitude = mkDefault config.location.latitude; + longitude = mkDefault config.location.longitude; + }); + + services.geoclue2.appConfig."clightc" = { + isAllowed = true; + isSystem = true; + }; + + systemd.services.clightd = { + requires = [ "polkit.service" ]; + wantedBy = [ "multi-user.target" ]; + + description = "Bus service to manage various screen related properties (gamma, dpms, backlight)"; + serviceConfig = { + Type = "dbus"; + BusName = "org.clightd.clightd"; + Restart = "on-failure"; + RestartSec = 5; + ExecStart = '' + ${pkgs.clightd}/bin/clightd + ''; + }; + }; + + systemd.user.services.clight = { + after = [ "upower.service" "clightd.service" ]; + wants = [ "upower.service" "clightd.service" ]; + partOf = [ "graphical-session.target" ]; + wantedBy = [ "graphical-session.target" ]; + + description = "C daemon to adjust screen brightness to match ambient brightness, as computed capturing frames from webcam"; + serviceConfig = { + Restart = "on-failure"; + RestartSec = 5; + ExecStart = '' + ${pkgs.clight}/bin/clight --conf-file ${clightConf} + ''; + }; + }; + }; +} |