114 lines
3.3 KiB
Nix
114 lines
3.3 KiB
Nix
{ pkgs, config, ... }:
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let
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inherit (pkgs) lib;
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inherit (lib) types mkEnableOption mkOption mkIf;
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cfg = config.machineVars;
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in {
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options.machineVars = {
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headless = mkEnableOption "Whether or not the machine should have graphical output.";
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screens = mkOption {
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type = types.attrsOf (types.submodule ( { name, ...}: {
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options = {
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resolution = mkOption {
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type = types.str;
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example = "1920x1080";
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description = "The resolution of the screen";
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};
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name = mkOption {
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type = types.str;
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default = name;
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example = "DP-1";
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description = "The name of the screen";
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};
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freq = mkOption {
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type = types.nullOr types.str;
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example = "60.00";
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description = "The update frequency of the screen, defined in Hz";
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};
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};
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}));
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default = { };
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description = "A detailed description of the machines screens.";
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};
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gaming = mkEnableOption "Whether or not the machine should have gaming software installed.";
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development = mkEnableOption "Whether or not the machine should come with developmen
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t tools preinstalled.";
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creative = mkEnableOption "Whether or not the machine should have creative software
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(music, video and image editing) installed.";
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wlanInterface = mkOption {
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type = types.nullOr types.string;
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default = null;
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};
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# Check " ls -1 /sys/class/power_supply/ "
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battery = mkOption {
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type = types.nullOr types.string;
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default = null;
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};
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laptop = mkEnableOption "Whether the machine is a laptop";
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fixDisplayCommand = mkOption {
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type = types.nullOr types.str;
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default = null;
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};
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dataDrives = let
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driveType =
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types.path;
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# types.addCheck types.path (path: builtins.elem path (builtins.attrNames config.fileSystems));
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in {
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drives = mkOption {
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type = types.attrsOf driveType;
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default = { };
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example = {
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dataDrive1 = "/data/data1";
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dataDrive2 = "/another/location";
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};
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description = ''
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Drives that should act as data drives.
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These need to be registered in `fileSystems`
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'';
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};
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default = mkOption {
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type = types.nullOr driveType;
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description = ''
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Data drive that should be used for most purposes.
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'';
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};
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};
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};
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config = {
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assertions = [
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{
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assertion = cfg.headless -> !cfg.creative;
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message = "A headless machine can't have creative software installed.";
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}
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{
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assertion = cfg.headless -> !cfg.gaming;
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message = "A headless machine can't have gaming software installed.";
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}
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{
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assertion = cfg.headless -> (cfg.screens == { } && cfg.fixDisplayCommand == null);
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message = "A headless machine can't have any screens.";
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}
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{
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assertion = cfg.battery != null -> cfg.laptop;
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message = "A battery shouldn't exist on a non laptop machine";
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}
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];
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warnings = lib.optionals (0 < (lib.length (builtins.attrNames cfg.screens)) && (cfg.fixDisplayCommand != null)) [
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"You are overriding the fixDisplayCommand even though machineVars.screens is defined. One of these should be omitted"
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];
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};
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}
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