Add a "keep" import mode to keep files as-is and export them.

core/io/config_file.cpp

@@ -295,6 +295,9 @@ Error ConfigFile::_parse(const String &p_path, VariantParser::Stream *p_stream)
 	return OK;
 }
 
+void ConfigFile::clear() {
+	values.clear();
+}
 void ConfigFile::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_value", "section", "key", "value"), &ConfigFile::set_value);
 	ClassDB::bind_method(D_METHOD("get_value", "section", "key", "default"), &ConfigFile::get_value, DEFVAL(Variant()));
@@ -317,4 +320,6 @@ void ConfigFile::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("save_encrypted", "path", "key"), &ConfigFile::save_encrypted);
 	ClassDB::bind_method(D_METHOD("save_encrypted_pass", "path", "password"), &ConfigFile::save_encrypted_pass);
+
+	ClassDB::bind_method(D_METHOD("clear"), &ConfigFile::clear);
 }

core/io/config_file.h

@@ -68,6 +68,8 @@ public:
 	Error load(const String &p_path);
 	Error parse(const String &p_data);
 
+	void clear();
+
 	Error load_encrypted(const String &p_path, const Vector<uint8_t> &p_key);
 	Error load_encrypted_pass(const String &p_path, const String &p_pass);
 

editor/editor_export.cpp

@@ -874,6 +874,20 @@ Error EditorExportPlatform::export_project_files(const Ref<EditorExportPreset> &
 				continue;
 			}
 
+			String importer_type = config->get_value("remap", "importer");
+
+			if (importer_type == "keep") {
+				//just keep file as-is
+				Vector<uint8_t> array = FileAccess::get_file_as_array(path);
+				err = p_func(p_udata, path, array, idx, total, enc_in_filters, enc_ex_filters, key);
+
+				if (err != OK) {
+					return err;
+				}
+
+				continue;
+			}
+
 			List<String> remaps;
 			config->get_section_keys("remap", &remaps);
 

editor/editor_file_system.cpp

@@ -405,6 +405,10 @@ bool EditorFileSystem::_test_for_reimport(const String &p_path, bool p_only_impo
 
 	memdelete(f);
 
+	if (importer_name == "keep") {
+		return false; //keep mode, do not reimport
+	}
+
 	Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(importer_name);
 
 	if (importer->get_format_version() > version) {
@@ -1532,6 +1536,10 @@ Error EditorFileSystem::_reimport_group(const String &p_group_file, const Vector
 		source_file_options[p_files[i]] = Map<StringName, Variant>();
 		importer_name = file_importer_name;
 
+		if (importer_name == "keep") {
+			continue; //do nothing
+		}
+
 		Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(importer_name);
 		ERR_FAIL_COND_V(!importer.is_valid(), ERR_FILE_CORRUPT);
 		List<ResourceImporter::ImportOption> options;
@@ -1555,6 +1563,10 @@ Error EditorFileSystem::_reimport_group(const String &p_group_file, const Vector
 		base_paths[p_files[i]] = ResourceFormatImporter::get_singleton()->get_import_base_path(p_files[i]);
 	}
 
+	if (importer_name == "keep") {
+		return OK; // (do nothing)
+	}
+
 	ERR_FAIL_COND_V(importer_name == String(), ERR_UNCONFIGURED);
 
 	Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(importer_name);
@@ -1700,7 +1712,7 @@ void EditorFileSystem::_reimport_file(const String &p_file, const Map<StringName
 						params[E->get()] = cf->get_value("params", E->get());
 					}
 				}
-				if (p_custom_importer != String() && cf->has_section("remap")) {
+				if (p_custom_importer == String() && cf->has_section("remap")) {
 					importer_name = cf->get_value("remap", "importer");
 				}
 			}
@@ -1710,6 +1722,16 @@ void EditorFileSystem::_reimport_file(const String &p_file, const Map<StringName
 		late_added_files.insert(p_file); //imported files do not call update_file(), but just in case..
 	}
 
+	if (importer_name == "keep") {
+		//keep files, do nothing.
+		fs->files[cpos]->modified_time = FileAccess::get_modified_time(p_file);
+		fs->files[cpos]->import_modified_time = FileAccess::get_modified_time(p_file + ".import");
+		fs->files[cpos]->deps.clear();
+		fs->files[cpos]->type = "";
+		fs->files[cpos]->import_valid = false;
+		EditorResourcePreview::get_singleton()->check_for_invalidation(p_file);
+		return;
+	}
 	Ref<ResourceImporter> importer;
 	bool load_default = false;
 	//find the importer

editor/import_dock.cpp

@@ -98,11 +98,9 @@ void ImportDock::set_edit_path(const String &p_path) {
 		return;
 	}
 
-	params->importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(config->get_value("remap", "importer"));
+	String importer_name = config->get_value("remap", "importer");
-	if (params->importer.is_null()) {
+
-		clear();
+	params->importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(importer_name);
-		return;
-	}
 
 	params->paths.clear();
 	params->paths.push_back(p_path);
@@ -124,11 +122,18 @@ void ImportDock::set_edit_path(const String &p_path) {
 	for (List<Pair<String, String>>::Element *E = importer_names.front(); E; E = E->next()) {
 		import_as->add_item(E->get().first);
 		import_as->set_item_metadata(import_as->get_item_count() - 1, E->get().second);
-		if (E->get().second == params->importer->get_importer_name()) {
+		if (E->get().second == importer_name) {
 			import_as->select(import_as->get_item_count() - 1);
 		}
 	}
 
+	import_as->add_separator();
+	import_as->add_item(TTR("Keep File (No Import)"));
+	import_as->set_item_metadata(import_as->get_item_count() - 1, "keep");
+	if (importer_name == "keep") {
+		import_as->select(import_as->get_item_count() - 1);
+	}
+
 	import->set_disabled(false);
 	import_as->set_disabled(false);
 	preset->set_disabled(false);
@@ -138,7 +143,10 @@ void ImportDock::set_edit_path(const String &p_path) {
 
 void ImportDock::_update_options(const Ref<ConfigFile> &p_config) {
 	List<ResourceImporter::ImportOption> options;
+
+	if (params->importer.is_valid()) {
 		params->importer->get_import_options(&options);
+	}
 
 	params->properties.clear();
 	params->values.clear();
@@ -157,7 +165,7 @@ void ImportDock::_update_options(const Ref<ConfigFile> &p_config) {
 	params->update();
 	_update_preset_menu();
 
-	if (params->paths.size() == 1 && params->importer->has_advanced_options()) {
+	if (params->importer.is_valid() && params->paths.size() == 1 && params->importer->has_advanced_options()) {
 		advanced->show();
 		advanced_spacer->show();
 	} else {
@@ -279,6 +287,13 @@ void ImportDock::set_edit_multiple_paths(const Vector<String> &p_paths) {
 void ImportDock::_update_preset_menu() {
 	preset->get_popup()->clear();
 
+	if (params->importer.is_null()) {
+		preset->get_popup()->add_item(TTR("Default"));
+		preset->hide();
+		return;
+	}
+	preset->show();
+
 	if (params->importer->get_preset_count() == 0) {
 		preset->get_popup()->add_item(TTR("Default"));
 	} else {
@@ -298,6 +313,10 @@ void ImportDock::_update_preset_menu() {
 
 void ImportDock::_importer_selected(int i_idx) {
 	String name = import_as->get_selected_metadata();
+	if (name == "keep") {
+		params->importer.unref();
+		_update_options(Ref<ConfigFile>());
+	} else {
 		Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(name);
 		ERR_FAIL_COND(importer.is_null());
 
@@ -312,6 +331,7 @@ void ImportDock::_importer_selected(int i_idx) {
 			}
 		}
 		_update_options(config);
+	}
 }
 
 void ImportDock::_preset_selected(int p_idx) {
@@ -407,6 +427,13 @@ static bool _find_owners(EditorFileSystemDirectory *efsd, const String &p_path)
 void ImportDock::_reimport_attempt() {
 	bool need_restart = false;
 	bool used_in_resources = false;
+
+	String importer_name;
+	if (params->importer.is_valid()) {
+		importer_name = params->importer->get_importer_name();
+	} else {
+		importer_name = "keep";
+	}
 	for (int i = 0; i < params->paths.size(); i++) {
 		Ref<ConfigFile> config;
 		config.instance();
@@ -414,7 +441,7 @@ void ImportDock::_reimport_attempt() {
 		ERR_CONTINUE(err != OK);
 
 		String imported_with = config->get_value("remap", "importer");
-		if (imported_with != params->importer->get_importer_name()) {
+		if (imported_with != importer_name) {
 			need_restart = true;
 			if (_find_owners(EditorFileSystem::get_singleton()->get_filesystem(), params->paths[i])) {
 				used_in_resources = true;
@@ -450,6 +477,7 @@ void ImportDock::_reimport() {
 		Error err = config->load(params->paths[i] + ".import");
 		ERR_CONTINUE(err != OK);
 
+		if (params->importer.is_valid()) {
 			String importer_name = params->importer->get_importer_name();
 
 			if (params->checking && config->get_value("remap", "importer") == params->importer->get_importer_name()) {
@@ -484,6 +512,12 @@ void ImportDock::_reimport() {
 				config->set_value("remap", "group_file", Variant()); //clear group file if unused
 			}
 
+		} else {
+			//set to no import
+			config->clear();
+			config->set_value("remap", "importer", "keep");
+		}
+
 		config->save(params->paths[i] + ".import");
 	}