pyrox.dev
1{ config, lib, pkgs, utils, ... }:
2
3with lib;
4
5let
6
7 cfg = config.services.freefall;
8
9in {
10
11 options.services.freefall = {
12
13 enable = mkOption {
14 type = types.bool;
15 default = false;
16 description = ''
17 Whether to protect HP/Dell laptop hard drives (not SSDs) in free fall.
18 '';
19 };
20
21 package = mkOption {
22 type = types.package;
23 default = pkgs.freefall;
24 description = ''
25 freefall derivation to use.
26 '';
27 };
28
29 devices = mkOption {
30 type = types.listOf types.string;
31 default = [ "/dev/sda" ];
32 description = ''
33 Device paths to all internal spinning hard drives.
34 '';
35 };
36
37 };
38
39 config = let
40
41 mkService = dev:
42 assert dev != "";
43 let dev' = utils.escapeSystemdPath dev; in
44 nameValuePair "freefall-${dev'}" {
45 description = "Free-fall protection for ${dev}";
46 after = [ "${dev'}.device" ];
47 wantedBy = [ "${dev'}.device" ];
48 serviceConfig = {
49 ExecStart = "${cfg.package}/bin/freefall ${dev}";
50 Restart = "on-failure";
51 Type = "forking";
52 };
53 };
54
55 in mkIf cfg.enable {
56
57 environment.systemPackages = [ cfg.package ];
58
59 systemd.services = builtins.listToAttrs (map mkService cfg.devices);
60
61 };
62
63}