110 lines
3.4 KiB
Nix
110 lines
3.4 KiB
Nix
{
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pkgs,
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config,
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lib,
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utils,
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...
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}: let
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cfg = config.jade.input.remapping;
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evremap = pkgs.rustPlatform.buildRustPackage {
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pname = "evremap";
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version = "0.1.0";
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src = pkgs.fetchFromGitHub {
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owner = "wez";
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repo = "evremap";
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rev = "4480c4eda223b98899b0fbd926bc34f7bd0e1a18";
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sha256 = "sha256-BxSrphgW1n465FX6bKVkq6O0XE2JqanfSYlsGwWUWkQ=";
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};
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cargoHash = "";
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cargoLock.lockFile = ../../../other/evremap.Cargo.lock;
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postPatch = ''
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cp ${../../../other/evremap.Cargo.lock} Cargo.lock
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'';
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nativeBuildInputs = [pkgs.pkg-config];
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buildInputs = [pkgs.libevdev];
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};
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toml = pkgs.formats.toml {};
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in
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with lib; {
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options.jade.input.remapping = {
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enable = mkEnableOption "Enable evremap";
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devices = mkOption {
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type = types.attrsOf (types.submodule ({name, ...}: {
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options = {
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device_name = mkOption {
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type = types.str;
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description = "The device name";
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default = name;
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};
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remap = mkOption {
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type = types.listOf (types.submodule ({...}: {
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options.input = mkOption {type = types.listOf types.str;};
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options.output = mkOption {type = types.listOf types.str;};
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}));
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default = [];
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};
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swapKeys = mkOption {
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description = "Lists with two keys to be swapped on the keyboard layout.";
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type = types.listOf (
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# verify that each key swapping list contains two elements
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types.addCheck (types.listOf types.str) (v: builtins.length v == 2)
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);
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default = [];
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};
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dual_role = mkOption {
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type = types.listOf (types.submodule ({...}: {
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options.input = mkOption {type = types.str;};
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options.hold = mkOption {type = types.listOf types.str;};
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options.tap = mkOption {type = types.listOf types.str;};
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}));
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default = [];
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};
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};
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}));
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};
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};
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config = mkIf cfg.enable (
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with builtins; let
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devs = map ({
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device_name,
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remap,
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swapKeys,
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dual_role,
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}: {
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inherit device_name dual_role;
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# expand swapKeys to normal remaps
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remap = concatLists [
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remap
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(lib.lists.flatten (map (keys: [
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{
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input = [(head keys)];
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output = [(lib.lists.last keys)];
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}
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{
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input = [(lib.lists.last keys)];
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output = [(head keys)];
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}
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])
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swapKeys))
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];
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}) (attrValues cfg.devices);
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in {
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# generate numbered systemd services for each device to be remapped
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# https://github.com/wez/evremap/issues/17
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systemd.services = listToAttrs (genList (i: {
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name = "evremap${toString i}";
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value = let
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cfgFile = toml.generate "remaps-${toString i}.toml" (elemAt devs i);
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in {
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script = "${evremap}/bin/evremap remap ${cfgFile}";
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wantedBy = ["multi-user.target"];
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unitConfig = {
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Restart = "on-failure";
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};
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};
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}) (length devs));
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environment.systemPackages = [evremap];
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}
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);
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}
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