languages/qml: init

Create the qml language module with treesitting, lsp, and formatting

modules/plugins/languages/default.nix

@@ -30,6 +30,7 @@ in {
     ./ocaml.nix
     ./php.nix
     ./python.nix
+    ./qml.nix
     ./r.nix
     ./rust.nix
     ./scala.nix

modules/plugins/languages/qml.nix

@@ -0,0 +1,98 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (builtins) attrNames;
+  inherit (lib.meta) getExe getExe';
+  inherit (lib.options) mkEnableOption mkOption;
+  inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.types) enum package;
+  inherit (lib.nvim.types) mkGrammarOption singleOrListOf;
+  inherit (lib.nvim.attrsets) mapListToAttrs;
+
+  cfg = config.vim.languages.qml;
+
+  qmlPackage = pkgs.kdePackages.qtdeclarative;
+
+  defaultServers = ["qmlls"];
+  servers = {
+    qmlls = {
+      cmd = [(getExe' qmlPackage "qmlls")];
+      filetypes = ["qml" "qmljs"];
+      rootmarkers = [".git"];
+    };
+  };
+
+  defaultFormat = "qmlformat";
+  formats = {
+    qmlformat = {
+      package = pkgs.writeShellApplication {
+        name = "qmlformat";
+        runtimeInputs = [qmlPackage];
+        text = "qmlformat -";
+      };
+    };
+  };
+in {
+  options.vim.languages.qml = {
+    enable = mkEnableOption "QML language support";
+    treesitter = {
+      enable = mkEnableOption "QML treesitter support" // {default = config.vim.languages.enableTreesitter;};
+      package = mkGrammarOption pkgs "qmljs";
+    };
+
+    lsp = {
+      enable = mkEnableOption "QML LSP support" // {default = config.vim.lsp.enable;};
+      servers = mkOption {
+        type = singleOrListOf (enum (attrNames servers));
+        default = defaultServers;
+        description = "QML LSP server to use";
+      };
+    };
+
+    format = {
+      enable = mkEnableOption "QML formatting" // {default = config.vim.languages.enableFormat;};
+
+      type = mkOption {
+        type = enum (attrNames formats);
+        default = defaultFormat;
+        description = "QML formatter to use";
+      };
+
+      package = mkOption {
+        type = package;
+        default = formats.${cfg.format.type}.package;
+        description = "QML formatter package";
+      };
+    };
+  };
+
+  config = mkIf cfg.enable (mkMerge [
+    (mkIf cfg.treesitter.enable {
+      vim.treesitter = {
+        enable = true;
+        grammars = [cfg.treesitter.package];
+      };
+    })
+    (mkIf cfg.lsp.enable {
+      vim.lsp.servers =
+        mapListToAttrs (n: {
+          name = n;
+          value = servers.${n};
+        })
+        cfg.lsp.servers;
+    })
+
+    (mkIf (cfg.format.enable && !cfg.lsp.enable) {
+      vim.formatter.conform-nvim = {
+        enable = true;
+        setupOpts.formatters_by_ft.qml = [cfg.format.type];
+        setupOpts.formatters.${cfg.format.type} = {
+          command = getExe cfg.format.package;
+        };
+      };
+    })
+  ]);
+}