plugins/syntax: fix tree-sitter parsers

neovim.nix

@@ -9,6 +9,7 @@
 , theme ? { }
 , plugins ? { }
 , wrapNeovim
+, runCommand
 , neovim-unwrapped
 , tree-sitter
 , neovimPlugins
@@ -27,7 +28,7 @@ let
   };
 
   pluginParams = neovimPlugins // {
-    inherit tree-sitter fetchFromGitHub;
+    inherit runCommand tree-sitter fetchFromGitHub;
     inherit plugins enableDevIcons enableTabby enableOrgMode;
     themeCfg = theme;
     lib = myLib;

plugins/syntax/default.nix

@@ -1,4 +1,5 @@
 { lib
+, runCommand
 , fetchFromGitHub
 , ...
 } @ inputs:
@@ -24,11 +25,13 @@ let
   grammars = tree-sitter.withPlugins (g: [ g.tree-sitter-d2 ]);
 
   nvim-treesitter = inputs.nvim-treesitter.withAllGrammars.overrideAttrs (oldAttrs: {
+    passthru.dependencies = oldAttrs.passthru.dependencies ++ [
+      (runCommand "nvim-treesitter-d2-grammar" { } ''
+        mkdir -p $out/parser
+        ln -s ${grammars}/d2.so $out/parser/d2.so
+      '')
+    ];
     postPatch = ''
-      rm -r parser
-      mkdir parser
-      ln -s ${grammars}/d2.so parser/d2.so
-
       ln -s ${extraGrammars.tree-sitter-d2.src}/queries queries/d2
     '';
   });

plugins/syntax/treesitter.lua

@@ -1,3 +1,6 @@
+local parser_config = require("nvim-treesitter.parsers").get_parser_configs()
+parser_config.d2 = {}
+
 require("nvim-treesitter.configs").setup({
 	ensure_installed = {},
 	sync_install = false,