66 lines
1.3 KiB
Nix
66 lines
1.3 KiB
Nix
{ 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 = [ "${dev'}.device" ];
|
|
path = [ pkgs.freefall ];
|
|
unitConfig = {
|
|
DefaultDependencies = false;
|
|
};
|
|
serviceConfig = {
|
|
ExecStart = "${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);
|
|
|
|
};
|
|
|
|
}
|