Add --noaddons command line option.

This option prevents any add-ons from being loaded.

changelog

@@ -380,6 +380,7 @@ Version 1.13.0-dev:
    * Fix bug #21400: Use unit 'image' with higher priority than 'image_icon' for animation
      frames with no specified image.
    * New filesystem implementation based on boost filesystem
+   * Added "--noaddons" command-line argument, prevents any add-ons from being loaded.
    * Added "--render-image" command-line argument, similar to --screenshot, but instead of a map,
      it takes a wesnoth imagepath and generates at bitmap with the filters applied.
    * New gettext implementation based on boost locale. This raises min boost requirement to 1.48,

src/commandline_options.cpp

@@ -105,6 +105,7 @@ commandline_options::commandline_options (const std::vector<std::string>& args)
 	multiplayer_side(),
 	multiplayer_turns(),
 	max_fps(),
+	noaddons(false),
 	nocache(false),
 	nodelay(false),
 	nogui(false),
@@ -173,6 +174,7 @@ commandline_options::commandline_options (const std::vector<std::string>& args)
 		("help,h", "prints this message and exits.")
 		("language,L", po::value<std::string>(), "uses language <arg> (symbol) this session. Example: --language ang_GB@latin")
 		("load,l", po::value<std::string>(), "loads the save <arg> from the standard save game directory. When launching the map editor via -e, the map <arg> is loaded, relative to the current directory. If it is a directory, the editor will start with a load map dialog opened there.")
+		("noaddons", "disables the loading of all add-ons.")
 		("nocache", "disables caching of game data.")
 		("nodelay", "runs the game without any delays.")
 		("nomusic", "runs the game without music.")
@@ -367,6 +369,8 @@ commandline_options::commandline_options (const std::vector<std::string>& args)
 		multiplayer_repeat = vm["multiplayer-repeat"].as<unsigned int>();
 	if (vm.count("new-widgets"))
 		new_widgets = true;
+	if (vm.count("noaddons"))
+		noaddons = true;
 	if (vm.count("nocache"))
 		nocache = true;
 	if (vm.count("nodelay"))

src/commandline_options.hpp

@@ -124,6 +124,8 @@ public:
 	boost::optional<std::string> multiplayer_turns;
 	/// Max FPS specified by --max-fps option.
 	boost::optional<int> max_fps;
+	/// True if --noaddons was given on the command line. Disables the loading of all add-ons.
+	bool noaddons;
 	/// True if --nocache was given on the command line. Disables cache usage.
 	bool nocache;
 	/// True if --nodelay was given on the command line.

src/game_config_manager.cpp

@@ -138,7 +138,8 @@ void game_config_manager::load_game_config(FORCE_RELOAD_CONFIG force_reload,
 		config core_terrain_rules;
 		core_terrain_rules.splice_children(game_config_, "terrain_graphics");
 
-		load_addons_cfg();
+		if (!cmdline_opts_.noaddons)
+			load_addons_cfg();
 
 		// If multiplayer campaign is being loaded, [scenario] tags should
 		// become [multiplayer] tags and campaign's id should be added to them