plugins/instant: init + test

plugins/utils/indent-blankline.nix

@@ -253,9 +253,11 @@ in {
       description = ''
         Extra configuration options for indent-blankline without the 'indent_blankline_' prefix.
         Example: To set 'indent_blankline_foobar' to 1, write
-        extraConfig = {
-          foobar = true;
-        };
+        ```nix
+          extraConfig = {
+            foobar = true;
+          };
+        ```
       '';
     };
   };

plugins/utils/instant.nix

@@ -0,0 +1,110 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+} @ args:
+with lib; let
+  helpers = import ../helpers.nix args;
+in {
+  options.plugins.instant = {
+    enable = mkEnableOption "instant.nvim";
+
+    package = helpers.mkPackageOption "instant" pkgs.vimPlugins.instant-nvim;
+
+    username = mkOption {
+      type = with types; nullOr str;
+      description = ''
+        Username.
+        Explicitly set to `null` if you do not want this option to be set.
+      '';
+    };
+
+    onlyCwd = helpers.defaultNullOpts.mkBool true ''
+      Choose whether to share files only in the current working directory in session mode.
+    '';
+
+    cursorHlGroupUser1 = helpers.defaultNullOpts.mkStr "Cursor" ''
+      Cursor highlight group for user 1.
+    '';
+
+    cursorHlGroupUser2 = helpers.defaultNullOpts.mkStr "Cursor" ''
+      Cursor highlight group for user 2.
+    '';
+
+    cursorHlGroupUser3 = helpers.defaultNullOpts.mkStr "Cursor" ''
+      Cursor highlight group for user 3.
+    '';
+
+    cursorHlGroupUser4 = helpers.defaultNullOpts.mkStr "Cursor" ''
+      Cursor highlight group for user 4.
+    '';
+
+    cursorHlGroupDefault = helpers.defaultNullOpts.mkStr "Cursor" ''
+      Cursor highlight group for any other userr.
+    '';
+
+    nameHlGroupUser1 = helpers.defaultNullOpts.mkStr "CursorLineNr" ''
+      Virtual text highlight group for user 1.
+    '';
+
+    nameHlGroupUser2 = helpers.defaultNullOpts.mkStr "CursorLineNr" ''
+      Virtual text highlight group for user 2.
+    '';
+
+    nameHlGroupUser3 = helpers.defaultNullOpts.mkStr "CursorLineNr" ''
+      Virtual text highlight group for user 3.
+    '';
+
+    nameHlGroupUser4 = helpers.defaultNullOpts.mkStr "CursorLineNr" ''
+      Virtual text highlight group for user 4.
+    '';
+
+    nameHlGroupDefault = helpers.defaultNullOpts.mkStr "CursorLineNr" ''
+      Virtual text highlight group for any other user.
+    '';
+
+    extraOptions = mkOption {
+      type = types.attrs;
+      default = {};
+      description = ''
+        Extra configuration options for instant without the 'instant_' prefix.
+        Example: To set 'instant_foobar' to 1, write
+        ```nix
+          extraConfig = {
+            foobar = true;
+          };
+        ```
+      '';
+    };
+  };
+
+  config = let
+    cfg = config.plugins.instant;
+  in
+    mkIf cfg.enable {
+      extraPlugins = [cfg.package];
+
+      globals =
+        mapAttrs'
+        (name: nameValuePair ("instant_" + name))
+        (
+          with cfg;
+            {
+              inherit username;
+              only_cwd = onlyCwd;
+              cursor_hl_group_user_1 = cursorHlGroupUser1;
+              cursor_hl_group_user_2 = cursorHlGroupUser2;
+              cursor_hl_group_user_3 = cursorHlGroupUser3;
+              cursor_hl_group_user_4 = cursorHlGroupUser4;
+              cursor_hl_group_default = cursorHlGroupDefault;
+              name_hl_group_user_1 = nameHlGroupUser1;
+              name_hl_group_user_2 = nameHlGroupUser2;
+              name_hl_group_user_3 = nameHlGroupUser3;
+              name_hl_group_user_4 = nameHlGroupUser4;
+              name_hl_group_default = nameHlGroupDefault;
+            }
+            // extraOptions
+        );
+    };
+}