nixpkgs/nixos/modules/services/hardware/interception-tools.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.interception-tools;
in {
options.services.interception-tools = {
enable = mkOption {
type = types.bool;
default = false;
description = "Whether to enable the interception tools service.";
};
plugins = mkOption {
type = types.listOf types.package;
default = [ pkgs.interception-tools-plugins.caps2esc ];
description = ''
A list of interception tools plugins that will be made available to use
inside the udevmon configuration.
'';
};
udevmonConfig = mkOption {
type = types.either types.str types.path;
default = ''
- JOB: "intercept -g $DEVNODE | caps2esc | uinput -d $DEVNODE"
DEVICE:
EVENTS:
EV_KEY: [KEY_CAPSLOCK, KEY_ESC]
'';
example = ''
- JOB: "intercept -g $DEVNODE | y2z | x2y | uinput -d $DEVNODE"
DEVICE:
EVENTS:
EV_KEY: [KEY_X, KEY_Y]
'';
description = ''
String of udevmon YAML configuration, or path to a udevmon YAML
configuration file.
'';
};
};
config = mkIf cfg.enable {
systemd.services.interception-tools = {
description = "Interception tools";
path = [ pkgs.bash pkgs.interception-tools ] ++ cfg.plugins;
serviceConfig = {
ExecStart = ''
${pkgs.interception-tools}/bin/udevmon -c \
${if builtins.typeOf cfg.udevmonConfig == "path"
then cfg.udevmonConfig
else pkgs.writeText "udevmon.yaml" cfg.udevmonConfig}
'';
Nice = -20;
};
wantedBy = [ "multi-user.target" ];
};
};
}