add d2 tree-sitter grammar

neovim.nix

@@ -4,7 +4,6 @@
 , enableOrgMode ? false
 , viAlias ? false
 , vimAlias ? false
-, grammarFileTypes ? [ "nix" ]
 , extraConfig ? ""
 , extraPlugins ? [ ]
 , theme ? { }
@@ -16,6 +15,7 @@
 , lib
 , nix2lua
 , substituteAll
+, fetchFromGitHub
 , ...
 }:
 
@@ -27,9 +27,8 @@ let
   };
 
   pluginParams = neovimPlugins // {
-    inherit plugins;
-    inherit tree-sitter grammarFileTypes;
-    inherit enableDevIcons enableTabby enableOrgMode;
+    inherit tree-sitter fetchFromGitHub;
+    inherit plugins enableDevIcons enableTabby enableOrgMode;
     themeCfg = theme;
     lib = myLib;
   };

plugins/syntax/default.nix

@@ -1,18 +1,41 @@
 { lib
-, nvim-treesitter
+, fetchFromGitHub
 , ...
-}:
+} @ inputs:
 
 
 let
   inherit (builtins) readFile;
 
-  nvimTreesitterWithGrammars = nvim-treesitter.withAllGrammars;
+  extraGrammars = {
+    tree-sitter-d2 = {
+      language = "d2";
+      src = fetchFromGitHub {
+        owner = "pleshevskiy";
+        repo = "tree-sitter-d2";
+        rev = "a1a2091ebf4521d965e13c918a601b5acb4d1a72";
+        sha256 = "sha256-1ZcWhbtmdPDkBoFfswfhlwbFLb2Uwq7lbSTs5wqiFzY=";
+      };
+      version = "0.0.0";
+    };
+  };
+
+  tree-sitter = (inputs.tree-sitter.override { inherit extraGrammars; });
+  grammars = tree-sitter.withPlugins (g: tree-sitter.allGrammars);
+
+  nvim-treesitter = inputs.nvim-treesitter.overrideAttrs (oldAttrs: {
+    postPatch = ''
+      rm -r parser
+      ln -s ${grammars} parser
+
+      ln -s ${../.}/queries queries/d2
+    '';
+  });
 in
 {
   luaConfig = readFile ./treesitter.lua;
 
   plugins = [
-    nvimTreesitterWithGrammars
+    nvim-treesitter
   ];
 }