modules/plugins/languages/kotlin.nix

@@ -4,7 +4,7 @@
   lib,
   ...
 }: let
-  inherit (lib.options) mkEnableOption mkOption literalExpression;
+  inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.modules) mkIf mkMerge;
   inherit (lib.meta) getExe;
   inherit (lib.nvim.languages) diagnosticsToLua;
@@ -15,6 +15,21 @@
 
   cfg = config.vim.languages.kotlin;
 
+  # Creating a version of the LSP with access to the kotlin binary.
+  # This is necessary for the LSP to load the standard library
+  kotlinLspWithRuntime = pkgs.symlinkJoin {
+    name = "kotlin-language-server-with-runtime";
+    paths = [
+      pkgs.kotlin-language-server
+      pkgs.kotlin
+    ];
+    buildInputs = [pkgs.makeWrapper];
+    postBuild = ''
+      wrapProgram $out/bin/kotlin-language-server \
+        --prefix PATH : ${pkgs.lib.makeBinPath [pkgs.kotlin]}
+    '';
+  };
+
   defaultDiagnosticsProvider = ["ktlint"];
   diagnosticsProviders = {
     ktlint = {
@@ -44,18 +59,7 @@ in {
       package = mkOption {
         description = "kotlin_language_server package with Kotlin runtime";
         type = package;
-        example = literalExpression ''
+        default = kotlinLspWithRuntime;
-          pkgs.symlinkJoin {
-              name = "kotlin-language-server-wrapped";
-              paths = [pkgs.kotlin-language-server];
-              nativeBuildInputs = [pkgs.makeWrapper];
-              postBuild = '''
-                wrapProgram $out/bin/kotlin-language-server \
-                  --prefix PATH : ''${pkgs.kotlin}/bin
-              ''';
-            };
-        '';
-        default = pkgs.kotlin-language-server;
       };
     };