neovim: Add tree sitter

users/simon/modules/neovim/default.nix

@@ -95,7 +95,6 @@ in
       vim-nix
       vim-openscad
       vim-snippets
-      vim-toml
       vimtex
       which-key-nvim
     ];
@@ -104,7 +103,29 @@ in
   xdg.configFile = {
     "nvim/lua/init.lua".source = ./init.lua;
     "nvim/lua/snippets.lua".source = pkgs.callPackage ./snippets.nix { };
-  };
+  } // (lib.mapAttrs'
+    (name: path: lib.nameValuePair "nvim/parser/${lib.removePrefix "tree-sitter-" name}.so" { source = "${path}/parser"; })
+    ({
+      inherit (pkgs.tree-sitter.builtGrammars)
+        tree-sitter-bash
+        tree-sitter-c
+        tree-sitter-cpp
+        tree-sitter-css
+        tree-sitter-dot
+        tree-sitter-go
+        tree-sitter-haskell
+        tree-sitter-html
+        tree-sitter-json
+        #tree-sitter-latex # incompatible with VimTeX
+        tree-sitter-lua
+        tree-sitter-nix
+        tree-sitter-perl
+        tree-sitter-python
+        tree-sitter-rust
+        tree-sitter-scss
+        tree-sitter-toml
+        tree-sitter-yaml;
+    }));
 
   home.sessionVariables.EDITOR = "nvim";
 }

users/simon/modules/neovim/init.lua

@@ -305,6 +305,17 @@ lsp.rust_analyzer.setup {
 
 require('trouble').setup {}
 
+-- Tree Sitter
+require('nvim-treesitter.configs').setup {
+  highlight = {
+    enable = true,
+    additional_vim_regex_highlighting = false,
+  },
+  indent = {
+    enable = true,
+  },
+}
+
 -- VimTeX
 g.tex_flavor = 'latex'
 g.vimtex_view_method = 'zathura'