80 lines
1.6 KiB
Nix
80 lines
1.6 KiB
Nix
{
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lib,
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config,
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pkgs,
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util,
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...
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}: let
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cfg = config.module.powersave;
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script = pkgs.writeShellScriptBin "powersave" (util.trimTabs ''
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function toggle() {
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if status; then
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echo ${cfg.cpu.boost.disableCmd} > ${cfg.cpu.boost.controlFile}
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else
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echo ${cfg.cpu.boost.enableCmd} > ${cfg.cpu.boost.controlFile}
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fi
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pkill -RTMIN+5 waybar
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true
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}
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function widget() {
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status && printf '' || printf ''
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}
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function status() {
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local current=$(cat ${cfg.cpu.boost.controlFile})
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local enabled="${cfg.cpu.boost.enableCmd}"
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[[ "''${current}" = "''${enabled}" ]]
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}
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''${@}
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'');
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in {
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options.module.powersave = {
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enable = lib.mkEnableOption "the powersave";
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cpu.boost = {
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disableCmd = lib.mkOption {
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default = null;
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type = lib.types.str;
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};
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enableCmd = lib.mkOption {
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default = null;
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type = lib.types.str;
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};
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controlFile = lib.mkOption {
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default = null;
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type = lib.types.str;
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};
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};
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};
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config = lib.mkIf cfg.enable {
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environment.systemPackages = [
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script
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];
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systemd = {
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services.powersave-cpu = {
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enable = true;
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description = "disable CPU Boost";
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wantedBy = [
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"multi-user.target"
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];
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serviceConfig = {
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Type = "simple";
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RemainAfterExit = "yes";
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ExecStart = "${lib.getExe pkgs.bash} -c 'echo ${cfg.cpu.boost.enableCmd} > ${cfg.cpu.boost.controlFile}'";
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ExecStop = "${lib.getExe pkgs.bash} -c 'echo ${cfg.cpu.boost.disableCmd} > ${cfg.cpu.boost.controlFile}'";
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};
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};
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# HACK: Allow user access.
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tmpfiles.rules = [
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"z ${cfg.cpu.boost.controlFile} 0777 - - - -"
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];
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};
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};
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}
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