From 3a92ac0e9b577be9f0d3d36fdfce977171b37560 Mon Sep 17 00:00:00 2001 From: lassulus Date: Thu, 16 Jun 2016 22:42:14 +0200 Subject: l 3: add power-action --- lass/3modules/power-action.nix | 67 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 lass/3modules/power-action.nix (limited to 'lass/3modules/power-action.nix') diff --git a/lass/3modules/power-action.nix b/lass/3modules/power-action.nix new file mode 100644 index 000000000..fd6dcf57e --- /dev/null +++ b/lass/3modules/power-action.nix @@ -0,0 +1,67 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + cfg = config.lass.power-action; + + out = { + options.lass.power-action = api; + config = mkIf cfg.enable imp; + }; + + api = { + enable = mkEnableOption "power-action"; + user = mkOption { + type = types.user; + default = { + name = "power-action"; + }; + }; + startAt = mkOption { + type = types.str; + default = "*:0/1"; + }; + plans = mkOption { + type = with types; attrsOf (submodule { + options = { + upperLimit = mkOption { + type = int; + }; + lowerLimit = mkOption { + type = int; + }; + action = mkOption { + type = path; + }; + }; + }); + }; + }; + + imp = { + systemd.services.power-action = { + serviceConfig = rec { + ExecStart = startScript; + User = cfg.user; + }; + startAt = cfg.startAt; + }; + users.users.${cfg.user.name} = { + inherit (cfg.user) name uid; + }; + }; + + startScript = pkgs.writeDash "power-action" '' + power="$(${powerlvl})" + ${concatStringsSep "\n" (mapAttrsToList writeRule cfg.plans)} + ''; + + writeRule = _: plan: + "if [ $power -ge ${toString plan.lowerLimit} ] && [ $power -le ${toString plan.upperLimit} ]; then ${plan.action}; fi"; + + powerlvl = pkgs.writeDash "powerlvl" '' + cat /sys/class/power_supply/BAT0/capacity + ''; + +in out -- cgit v1.2.3