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62 lines
1.2 KiB
Nix
62 lines
1.2 KiB
Nix
{ config, lib, pkgs, utils, ... }:
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with lib;
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{
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###### interface
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options = with types; {
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services.freefall = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to protect HP/Dell laptop hard drives (not SSDs) in free fall.
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'';
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type = bool;
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};
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devices = mkOption {
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default = [ "/dev/sda" ];
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description = ''
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Device paths to all internal spinning hard drives.
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'';
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type = listOf string;
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};
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};
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};
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###### implementation
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config = let
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cfg = config.services.freefall;
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mkService = dev:
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assert dev != "";
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let dev' = utils.escapeSystemdPath dev; in
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nameValuePair "freefall-${dev'}"
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{ description = "Free-fall protection for ${dev}";
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after = [ "${dev'}.device" ];
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wantedBy = [ "${dev'}.device" ];
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path = [ pkgs.freefall ];
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serviceConfig = {
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ExecStart = "${pkgs.freefall}/bin/freefall ${dev}";
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Restart = "on-failure";
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Type = "forking";
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};
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};
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in mkIf cfg.enable {
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environment.systemPackages = [ pkgs.freefall ];
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systemd.services = listToAttrs (map mkService cfg.devices);
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};
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}
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