perf(line_num): honor exclude_filetypes

Author: hinell

lua/hlchunk/mods/line_num/init.lua

@@ -47,10 +47,16 @@ end
 function LineNumMod:createAutocmd()
     BaseMod.createAutocmd(self)
 
+    local bufnr = api.nvim_get_current_buf()
+    local exclude_filetypes = self.conf.exclude_filetypes
+    if exclude_filetypes[vim.bo[bufnr].buftype] then
+        return
+    end
+
     api.nvim_create_autocmd({ "CursorMoved", "CursorMovedI" }, {
         group = self.meta.augroup_name,
         callback = function(event)
-            local bufnr = event.buf
+            bufnr = event.buf
             local winnr = api.nvim_get_current_win()
             local pos = api.nvim_win_get_cursor(winnr)
             local retcode, cur_chunk_range = chunkHelper.get_chunk_range({