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nixos: freefall module: add package option

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...and tidy up some of my old cargo-culted code.
This commit is contained in:
Tobias Geerinckx-Rice 2015-09-06 03:48:43 +02:00
parent a56eed5405
commit fa3d7ea77b
1 changed files with 27 additions and 29 deletions
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56
nixos/modules/services/hardware/freefall.nix
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@ -2,40 +2,42 @@
with lib;
{
let
###### interface
cfg = config.services.freefall;
options = with types; {
in {
services.freefall = {
options.services.freefall = {
enable = mkOption {
default = false;
description = ''
Whether to protect HP/Dell laptop hard drives (not SSDs) in free fall.
'';
type = bool;
};
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to protect HP/Dell laptop hard drives (not SSDs) in free fall.
'';
};
devices = mkOption {
default = [ "/dev/sda" ];
description = ''
Device paths to all internal spinning hard drives.
'';
type = listOf string;
};
package = mkOption {
type = types.package;
default = pkgs.freefall;
description = ''
freefall derivation to use.
'';
};
devices = mkOption {
type = types.listOf types.string;
default = [ "/dev/sda" ];
description = ''
Device paths to all internal spinning hard drives.
'';
};
};
###### implementation
config = let
cfg = config.services.freefall;
mkService = dev:
assert dev != "";
let dev' = utils.escapeSystemdPath dev; in
@ -43,12 +45,8 @@ with lib;
description = "Free-fall protection for ${dev}";
after = [ "${dev'}.device" ];
wantedBy = [ "${dev'}.device" ];
path = [ pkgs.freefall ];
unitConfig = {
DefaultDependencies = false;
};
serviceConfig = {
ExecStart = "${pkgs.freefall}/bin/freefall ${dev}";
ExecStart = "${cfg.package}/bin/freefall ${dev}";
Restart = "on-failure";
Type = "forking";
};
@ -56,9 +54,9 @@ with lib;
in mkIf cfg.enable {
environment.systemPackages = [ pkgs.freefall ];
environment.systemPackages = [ cfg.package ];
systemd.services = listToAttrs (map mkService cfg.devices);
systemd.services = builtins.listToAttrs (map mkService cfg.devices);
};