Method _save_external_resources

editor/editor_node.cpp:2034–2101

}

int EditorNode::_save_external_resources(bool p_also_save_external_data) {
	int flg = 0;
	if (EDITOR_GET("filesystem/on_save/compress_binary_resources")) {
		flg |= ResourceSaver::FLAG_COMPRESS;
	}
	flg |= ResourceSaver::FLAG_REPLACE_SUBRESOURCE_PATHS;

	HashSet<String> edited_resources;
	int saved = 0;
	List<Ref<Resource>> cached;
	ResourceCache::get_cached_resources(&cached);

	for (Ref<Resource> res : cached) {
		if (!res->is_edited()) {
			continue;
		}

		String path = res->get_path();
		if (path.begins_with("res://")) {
			int subres_pos = path.find("::");
			if (subres_pos == -1) {
				// Actual resource.
				edited_resources.insert(path);
			} else {
				edited_resources.insert(path.substr(0, subres_pos));
			}
		}

		res->set_edited(false);
	}

	bool script_was_saved = false;
	for (const String &E : edited_resources) {
		Ref<Resource> res = ResourceCache::get_ref(E);
		if (res.is_null()) {
			continue; // Maybe it was erased in a thread, who knows.
		}
		Ref<PackedScene> ps = res;
		if (ps.is_valid()) {
			continue; // Do not save PackedScenes, this will mess up the editor.
		}
		if (!script_was_saved) {
			Ref<Script> scr = res;
			script_was_saved = scr.is_valid();
		}
		ResourceSaver::save(res, res->get_path(), flg);
		saved++;
	}

	if (script_was_saved) {
		ScriptEditor::get_singleton()->update_script_times();
	}

	if (p_also_save_external_data) {
		for (int i = 0; i < editor_data.get_editor_plugin_count(); i++) {
			EditorPlugin *plugin = editor_data.get_editor_plugin(i);
			if (!plugin->get_unsaved_status().is_empty()) {
				plugin->save_external_data();