Change auto.lua to remove comments and unneeded whitespaces before converting to hex

src/scripts/auto.lua

@@ -15,7 +15,11 @@ function auto(name)
 	-- Read source Lua file
 	local src_file = io.open(src, "rb")
 	local src_data = src_file:read("*a")
- 	local src_len = #src_data
+	-- remove comments
+	src_data = src_data:gsub("%-%-%[%[.-%-%-%]%]", ""):gsub("%-%-.-\n", "")
+	-- remove unneeded whitespaces
+	src_data = src_data:gsub("^%s+",""):gsub("%s*$",""):gsub("%s%s+", " ")
+	local src_len = #src_data
 	src_file:close()
 
 	local lines = {}
@@ -87,7 +91,10 @@ if #arg == 0 then
 	print("Usage: lua auto.lua <name1> <name2> .. <name3>")
 else
 	for i, v in ipairs(arg) do
-		auto(v)
+		local ok, err = pcall(auto, v:gsub("%.lua$",""))
+		if not ok then
+			print("cannot update "..v..": " .. err)
+		end
 	end
 end