plugins/typst-vim: init plugin + test

plugins/default.nix

@@ -43,6 +43,7 @@
     ./languages/treesitter/treesitter-playground.nix
     ./languages/treesitter/treesitter-rainbow.nix
     ./languages/treesitter/treesitter-refactor.nix
+    ./languages/typst/typst-vim.nix
     ./languages/vimtex.nix
     ./languages/zig.nix
 

plugins/languages/typst/typst-vim.nix

@@ -0,0 +1,42 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.plugins.typst-vim;
+  helpers = import ../../helpers.nix {inherit lib;};
+in {
+  options.plugins.typst-vim =
+    helpers.extraOptionsOptions
+    // {
+      enable = mkEnableOption "typst.vim";
+
+      package = helpers.mkPackageOption "typst-vim" pkgs.vimPlugins.typst-vim;
+
+      keymaps = {
+        silent = mkOption {
+          type = types.bool;
+          description = "Whether typst-vim keymaps should be silent.";
+          default = false;
+        };
+
+        watch =
+          helpers.mkNullOrOption types.str
+          "Keymap to preview the document and recompile on change.";
+      };
+    };
+
+  config = mkIf cfg.enable {
+    extraPlugins = [cfg.package];
+
+    # Add the typst compiler to nixvim packages
+    extraPackages = with pkgs; [typst];
+
+    maps.normal = with cfg.keymaps;
+      helpers.mkModeMaps {inherit silent;} {
+        ${watch} = ":TypstWatch<CR>";
+      };
+  };
+}

tests/test-sources/plugins/languages/typst/typst-vim.nix

@@ -0,0 +1,17 @@
+{
+  empty = {
+    plugins.typst-vim.enable = true;
+  };
+
+  example = {
+    plugins.typst-vim = {
+      enable = true;
+
+      keymaps = {
+        silent = true;
+
+        watch = "<leader>w";
+      };
+    };
+  };
+}