Unverified Commit bba54c49 authored by Lin Jian's avatar Lin Jian Committed by GitHub
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Merge pull request #255813 from linj-fork/feat-kanata-all-device 

nixos/kanata: add default value, doc and warning for devices
parents 9207b884 c5ba4c68

nixos/modules/services/hardware/kanata.nix

+15 −1
Original line number Diff line number Diff line
@@ -9,8 +9,14 @@ let 
    options = {

      devices = mkOption {

        type = types.listOf types.str;

        default = [ ];

        example = [ "/dev/input/by-id/usb-0000_0000-event-kbd" ];

        description = mdDoc "Paths to keyboard devices.";

        description = mdDoc ''

          Paths to keyboard devices.



          An empty list, the default value, lets kanata detect which

          input devices are keyboards and intercept them all.

        '';

      };

      config = mkOption {

        type = types.lines;
@@ -162,6 +168,14 @@ in 
  };



  config = mkIf cfg.enable {

    warnings =

      let

        keyboardsWithEmptyDevices = filterAttrs (name: keyboard: keyboard.devices == [ ]) cfg.keyboards;

        existEmptyDevices = length (attrNames keyboardsWithEmptyDevices) > 0;

        moreThanOneKeyboard = length (attrNames cfg.keyboards) > 1;

      in

      optional (existEmptyDevices && moreThanOneKeyboard) "One device can only be intercepted by one kanata instance.  Setting services.kanata.keyboards.${head (attrNames keyboardsWithEmptyDevices)}.devices = [ ] and using more than one services.kanata.keyboards may cause a race condition.";



    hardware.uinput.enable = true;



    systemd.services = mapAttrs' mkService cfg.keyboards;