From 52346b1d7b0ffa52c5bde62604b0858b94db8350 Mon Sep 17 00:00:00 2001
From: Diomendius <42310725+Diomendius@users.noreply.github.com>
Date: Tue, 29 Aug 2023 15:53:16 +1200
Subject: [PATCH] fix: ensure try_add() runs after filetype detection

Sometimes, BufNewFile triggers before 'filetype' is set. Using
vim.schedule() should ensure filetype detection runs before the
callback.
---
 lua/lspconfig/configs.lua | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/lua/lspconfig/configs.lua b/lua/lspconfig/configs.lua
index 6a8b102c5c..4859c058b1 100644
--- a/lua/lspconfig/configs.lua
+++ b/lua/lspconfig/configs.lua
@@ -102,7 +102,11 @@ function configs.__newindex(t, config_name, config_def)
       api.nvim_create_autocmd(event_conf.event, {
         pattern = event_conf.pattern or '*',
         callback = function(opt)
-          M.manager:try_add(opt.buf)
+          -- Use vim.schedule() to ensure filetype detection happens first.
+          -- Sometimes, BufNewFile triggers before 'filetype' is set.
+          vim.schedule(function()
+            M.manager:try_add(opt.buf)
+          end)
         end,
         group = lsp_group,
         desc = string.format(
@@ -145,7 +149,12 @@ function configs.__newindex(t, config_name, config_def)
               if #M.manager:clients() == 0 then
                 return true
               end
-              M.manager:try_add_wrapper(arg.buf, root_dir)
+
+              -- Use vim.schedule() to ensure filetype detection happens first.
+              -- Sometimes, BufNewFile triggers before 'filetype' is set.
+              vim.schedule(function()
+                M.manager:try_add_wrapper(arg.buf, root_dir)
+              end)
             end,
             group = lsp_group,
             desc = string.format(