From d53dbb1ea56907c391b89e1498d1930ba10e8eb3 Mon Sep 17 00:00:00 2001
From: mmfallacy <31348500+mmfallacy@users.noreply.github.com>
Date: Wed, 8 Apr 2026 14:17:18 +0000
Subject: [PATCH] feat(diff): infer treesitter filetype highlights from
 filename

---
 lua/difftastic-nvim/diff.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lua/difftastic-nvim/diff.lua b/lua/difftastic-nvim/diff.lua
index 5351be6..00c94d4 100644
--- a/lua/difftastic-nvim/diff.lua
+++ b/lua/difftastic-nvim/diff.lua
@@ -124,7 +124,7 @@ function M.render(state, file)
     -- Apply syntax highlighting based on mode
     local use_treesitter = config.highlight_mode ~= "difftastic"
     if use_treesitter then
-        local ft = FILETYPES[file.language]
+        local ft = FILETYPES[file.language] or vim.filetype.match({ filename = vim.fn.fnamemodify(file.path, ":t"), })
         if ft then
             ensure_treesitter(state.left_buf, ft)
             ensure_treesitter(state.right_buf, ft)