diff options
Diffstat (limited to 'nixos/modules/services/hardware/freefall.nix')
-rw-r--r-- | nixos/modules/services/hardware/freefall.nix | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/nixos/modules/services/hardware/freefall.nix b/nixos/modules/services/hardware/freefall.nix new file mode 100644 index 00000000000..6e6960bac49 --- /dev/null +++ b/nixos/modules/services/hardware/freefall.nix @@ -0,0 +1,62 @@ +{ config, lib, pkgs, utils, ... }: + +with lib; + +{ + + ###### interface + + options = with types; { + + services.freefall = { + + enable = mkOption { + default = false; + description = '' + Whether to protect HP/Dell laptop hard drives (not SSDs) in free fall. + ''; + type = bool; + }; + + devices = mkOption { + default = [ "/dev/sda" ]; + description = '' + Device paths to all internal spinning hard drives. + ''; + type = listOf string; + }; + + }; + + }; + + ###### implementation + + config = let + + cfg = config.services.freefall; + + mkService = dev: + assert dev != ""; + let dev' = utils.escapeSystemdPath dev; in + nameValuePair "freefall-${dev'}" + { description = "Free-fall protection for ${dev}"; + after = [ "${dev'}.device" ]; + wantedBy = [ "${dev'}.device" ]; + path = [ pkgs.freefall ]; + serviceConfig = { + ExecStart = "${pkgs.freefall}/bin/freefall ${dev}"; + Restart = "on-failure"; + Type = "forking"; + }; + }; + + in mkIf cfg.enable { + + environment.systemPackages = [ pkgs.freefall ]; + + systemd.services = listToAttrs (map mkService cfg.devices); + + }; + +} |