Replaced Joystick:saveGamepadMapping with love.joystick.saveGamepadMappings, which saves all gamepad mappings from both recently-used joysticks and recently-modified mappings. saveGamepadMappings returns a string of newline-separated mappings and takes an optional filename argument which writes it to a file.

src/modules/joystick/sdl/JoystickModule.h

@@ -28,6 +28,7 @@
 #include <string>
 #include <vector>
 #include <list>
+#include <map>
 
 namespace love
 {
@@ -57,7 +58,7 @@ public:
 	bool setGamepadMapping(const std::string &guid, Joystick::GamepadInput gpinput, Joystick::JoystickInput joyinput);
 	Joystick::JoystickInput getGamepadMapping(const std::string &guid, Joystick::GamepadInput gpinput);
 	void loadGamepadMappings(const std::string &mappings);
-	std::string saveGamepadMapping(const std::string &pguid);
+	std::string saveGamepadMappings();
 
 private:
 
@@ -76,6 +77,10 @@ private:
 	// Persistent list of all Joysticks which have been connected at some point.
 	std::list<Joystick *> joysticks;
 
+	// Persistent map indicating GUIDs for Gamepads which have been connected or
+	// modified at some point.
+	std::map<std::string, bool> recentGamepadGUIDs;
+
 }; // JoystickModule
 
 } // sdl