From a1733f2a0365f2ebbfc285935647c2874fff25c1 Mon Sep 17 00:00:00 2001
From: parazyd <parazyd@dyne.org>
Date: Tue, 12 Jan 2021 11:04:17 +0100
Subject: filetype: Detect make shebang for "makefile".

This is useful when writing "debian/rules" files in packages.
---
 lua/plugins/filetype.lua | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lua')

diff --git a/lua/plugins/filetype.lua b/lua/plugins/filetype.lua
index 5aebdcc..5b6c2ab 100644
--- a/lua/plugins/filetype.lua
+++ b/lua/plugins/filetype.lua
@@ -250,6 +250,9 @@ vis.ftdetect.filetypes = {
 	makefile = {
 		ext = { "%.iface$", "%.mak$", "%.mk$", "GNUmakefile", "makefile", "Makefile" },
 		mime = { "text/x-makefile" },
+		detect = function(_, data)
+			return data:match("^#!/usr/bin/make")
+		end
 	},
 	man = {
 		ext = {
-- 
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