plantuml: init syntax plugin (#104)

plugins/default.nix

@@ -23,6 +23,7 @@
 
     ./languages/ledger.nix
     ./languages/nix.nix
+    ./languages/plantuml-syntax.nix
     ./languages/treesitter.nix
     ./languages/treesitter-context.nix
     ./languages/treesitter-refactor.nix

plugins/languages/plantuml-syntax.nix

@@ -0,0 +1,33 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+with lib; {
+  options.plugins.plantuml-syntax = {
+    enable = mkEnableOption "Enable plantuml syntax support";
+    setMakeprg = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Set the makeprg to 'plantuml'";
+    };
+    executableScript = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      description = "Set the script to be called with makeprg, default to 'plantuml' in PATH";
+    };
+  };
+
+  config = let
+    cfg = config.plugins.plantuml-syntax;
+  in
+    mkIf cfg.enable {
+      extraPlugins = with pkgs.vimPlugins; [plantuml-syntax];
+
+      globals = {
+        plantuml_set_makeprg = cfg.setMakeprg;
+        plantuml_executable_script = cfg.executableScript;
+      };
+    };
+}