Add missing serialization/compression.hpp from 553c56b2bd

src/serialization/compression.hpp

@@ -0,0 +1,40 @@
+/*
+   Part of the Battle for Wesnoth Project http://www.wesnoth.org/
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY.
+
+   See the COPYING file for more details.
+*/
+
+#ifndef COMPRESSION_HPP_INCLUDED
+#define COMPRESSION_HPP_INCLUDED
+
+#include <string>
+
+namespace compression {
+	enum format {
+		NONE,
+		GZIP,
+		BZIP2
+	};
+
+	inline std::string format_extension(format compression_format)
+	{
+		switch(compression_format) {
+		case GZIP:
+			return ".gz";
+		case BZIP2:
+			return ".bz2";
+		case NONE:
+		default:
+			return "";
+		}
+	}
+}
+
+#endif