From 2b0b9382d77c4a9ff471a999bddb2f9cc945a300 Mon Sep 17 00:00:00 2001
From: Steven Arcangeli <stevearc@stevearc.com>
Date: Tue, 24 Jan 2023 17:18:30 +0000
Subject: [PATCH] fix: invalid filetype of oil buffer (#47)

---
 lua/oil/init.lua | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lua/oil/init.lua b/lua/oil/init.lua
index f9108c9a..d9b48687 100644
--- a/lua/oil/init.lua
+++ b/lua/oil/init.lua
@@ -617,13 +617,21 @@ M.setup = function(opts)
   end
 
   local patterns = {}
+  local filetype_patterns = {}
   for scheme in pairs(config.adapters) do
     table.insert(patterns, scheme .. "*")
+    filetype_patterns[scheme .. ".*"] = { "oil", { priority = 10 } }
   end
   for scheme in pairs(config.adapter_aliases) do
     table.insert(patterns, scheme .. "*")
+    filetype_patterns[scheme .. ".*"] = { "oil", { priority = 10 } }
   end
   local scheme_pattern = table.concat(patterns, ",")
+  -- We need to add these patterns to the filetype matcher so the filetype doesn't get overridden
+  -- by other patterns. See https://github.com/stevearc/oil.nvim/issues/47
+  vim.filetype.add({
+    pattern = filetype_patterns,
+  })
 
   vim.api.nvim_create_autocmd("ColorScheme", {
     desc = "Set default oil highlights",