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author | makefu <github@syntax-fehler.de> | 2016-06-23 17:04:07 +0200 |
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committer | makefu <github@syntax-fehler.de> | 2016-06-23 17:04:07 +0200 |
commit | 271a59b1d6222f7336fac427631ee5bb569a000e (patch) | |
tree | 804b845cebb530001e79b16ddcb70d2d12d8c7f5 /lass/3modules | |
parent | d5e0dcccd074d7e63cfa7fff35782cb92c101270 (diff) | |
parent | a8dcedbb99151ce396d58573f339fa34d7537fa1 (diff) |
Merge remote-tracking branch 'prism/master'
Diffstat (limited to 'lass/3modules')
-rw-r--r-- | lass/3modules/default.nix | 1 | ||||
-rw-r--r-- | lass/3modules/power-action.nix | 93 |
2 files changed, 94 insertions, 0 deletions
diff --git a/lass/3modules/default.nix b/lass/3modules/default.nix index 380d83a9..b3037205 100644 --- a/lass/3modules/default.nix +++ b/lass/3modules/default.nix @@ -4,6 +4,7 @@ _: ./ejabberd ./folderPerms.nix ./mysql-backup.nix + ./power-action.nix ./urxvtd.nix ./wordpress_nginx.nix ./xresources.nix diff --git a/lass/3modules/power-action.nix b/lass/3modules/power-action.nix new file mode 100644 index 00000000..06a31627 --- /dev/null +++ b/lass/3modules/power-action.nix @@ -0,0 +1,93 @@ +{ config, lib, pkgs, ... }: + +with config.krebs.lib; + +let + cfg = config.lass.power-action; + + out = { + options.lass.power-action = api; + config = lib.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 = { + charging = mkOption { + type = nullOr bool; + default = null; + description = '' + check for charging status. + null = don't care + true = only if system is charging + false = only if system is discharging + ''; + }; + upperLimit = mkOption { + type = int; + }; + lowerLimit = mkOption { + type = int; + }; + action = mkOption { + type = path; + }; + }; + }); + }; + }; + + imp = { + systemd.services.power-action = { + serviceConfig = rec { + ExecStart = startScript; + User = cfg.user.name; + }; + startAt = cfg.startAt; + }; + users.users.${cfg.user.name} = { + inherit (cfg.user) name uid; + }; + }; + + startScript = pkgs.writeDash "power-action" '' + set -euf + + power="$(${powerlvl})" + state="$(${state})" + ${concatStringsSep "\n" (mapAttrsToList writeRule cfg.plans)} + ''; + charging_check = plan: + if (plan.charging == null) then "" else + if plan.charging + then ''&& [ "$state" = "true" ]'' + else ''&& ! [ "$state" = "true" ]'' + ; + + writeRule = _: plan: + "if [ $power -ge ${toString plan.lowerLimit} ] && [ $power -le ${toString plan.upperLimit} ] ${charging_check plan}; then ${plan.action}; fi"; + + powerlvl = pkgs.writeDash "powerlvl" '' + cat /sys/class/power_supply/BAT0/capacity + ''; + + state = pkgs.writeDash "state" '' + if [ "$(cat /sys/class/power_supply/BAT0/status)" = "Charging" ] + then echo "true" + else echo "false" + fi + ''; + +in out |