pyrox.dev
nixos: freefall module: add `package` option
...and tidy up some of my old cargo-culted code.
+27
-29
nixos/modules/services/hardware/freefall.nix
+27
-29
nixos/modules/services/hardware/freefall.nix
···
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3
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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-
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config = let
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-
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cfg = config.services.freefall;
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mkService = dev:
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assert dev != "";
···
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description = "Free-fall protection for ${dev}";
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after = [ "${dev'}.device" ];
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wantedBy = [ "${dev'}.device" ];
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-
path = [ pkgs.freefall ];
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-
unitConfig = {
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-
DefaultDependencies = false;
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-
};
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serviceConfig = {
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-
ExecStart = "${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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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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with lib;
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+
let
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+
cfg = config.services.freefall;
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+
in {
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options.services.freefall = {
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+
enable = mkOption {
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+
type = types.bool;
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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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+
};
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+
package = mkOption {
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+
type = types.package;
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+
default = pkgs.freefall;
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+
description = ''
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+
freefall derivation to use.
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'';
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+
};
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+
devices = mkOption {
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+
type = types.listOf types.string;
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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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};
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};
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config = let
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mkService = dev:
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assert dev != "";
···
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description = "Free-fall protection for ${dev}";
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after = [ "${dev'}.device" ];
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wantedBy = [ "${dev'}.device" ];
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serviceConfig = {
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+
ExecStart = "${cfg.package}/bin/freefall ${dev}";
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Restart = "on-failure";
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Type = "forking";
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};
···
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in mkIf cfg.enable {
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+
environment.systemPackages = [ cfg.package ];
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+
systemd.services = builtins.listToAttrs (map mkService cfg.devices);
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};
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