Method _setup

core/config/project_settings.cpp:607–767

}

Error ProjectSettings::_setup(const String &p_path, const String &p_main_pack, bool p_upwards, bool p_ignore_override) {
	if (!OS::get_singleton()->get_resource_dir().is_empty()) {
		// OS will call ProjectSettings->get_resource_path which will be empty if not overridden!
		// If the OS would rather use a specific location, then it will not be empty.
		resource_path = OS::get_singleton()->get_resource_dir().replace_char('\\', '/');
		if (!resource_path.is_empty() && resource_path[resource_path.length() - 1] == '/') {
			resource_path = resource_path.substr(0, resource_path.length() - 1); // Chop end.
		}
	}

	// Attempt with a user-defined main pack first

	if (!p_main_pack.is_empty()) {
		bool ok = _load_resource_pack(p_main_pack, false, 0, true);
		ERR_FAIL_COND_V_MSG(!ok, ERR_CANT_OPEN, vformat("Cannot open resource pack '%s'.", p_main_pack));

		Error err = _load_settings_text_or_binary("res://project.godot", "res://project.binary");
		if (err == OK && !p_ignore_override) {
			// Load override from location of the main pack
			// Optional, we don't mind if it fails
			_load_settings_text(p_main_pack.get_base_dir().path_join("override.cfg"));
		}
		return err;
	}

	String exec_path = OS::get_singleton()->get_executable_path();

	if (!exec_path.is_empty()) {
		// We do several tests sequentially until one succeeds to find a PCK,
		// and if so, we attempt loading it at the end.

		// Attempt with PCK bundled into executable.
		bool found = _load_resource_pack(exec_path, false, 0, true);

		// Attempt with exec_name.pck.
		// (This is the usual case when distributing a Redot game.)
		String exec_dir = exec_path.get_base_dir();
		String exec_filename = exec_path.get_file();
		String exec_basename = exec_filename.get_basename();

		// Based on the OS, it can be the exec path + '.pck' (Linux w/o extension, macOS in .app bundle)
		// or the exec path's basename + '.pck' (Windows).
		// We need to test both possibilities as extensions for Linux binaries are optional
		// (so both 'mygame.bin' and 'mygame' should be able to find 'mygame.pck').

#ifdef MACOS_ENABLED
		if (!found) {
			// Attempt to load PCK from macOS .app bundle resources.
			found = _load_resource_pack(OS::get_singleton()->get_bundle_resource_dir().path_join(exec_basename + ".pck"), false, 0, true) || _load_resource_pack(OS::get_singleton()->get_bundle_resource_dir().path_join(exec_filename + ".pck"), false, 0, true);
		}
#endif

		if (!found) {
			// Try to load data pack at the location of the executable.
			// As mentioned above, we have two potential names to attempt.
			found = _load_resource_pack(exec_dir.path_join(exec_basename + ".pck"), false, 0, true) || _load_resource_pack(exec_dir.path_join(exec_filename + ".pck"), false, 0, true);
		}