Reload cached resources in runtime on file reimport

editor/debugger/script_editor_debugger.cpp

@@ -1170,6 +1170,12 @@ String ScriptEditorDebugger::get_var_value(const String &p_var) const {
 	return inspector->get_stack_variable(p_var);
 }
 
+void ScriptEditorDebugger::_resources_reimported(const PackedStringArray &p_resources) {
+	Array msg;
+	msg.push_back(p_resources);
+	_put_msg("scene:reload_cached_files", msg);
+}
+
 int ScriptEditorDebugger::_get_node_path_cache(const NodePath &p_path) {
 	const int *r = node_path_cache.getptr(p_path);
 	if (r) {
@@ -1818,6 +1824,7 @@ ScriptEditorDebugger::ScriptEditorDebugger() {
 	tabs->connect("tab_changed", callable_mp(this, &ScriptEditorDebugger::_tab_changed));
 
 	InspectorDock::get_inspector_singleton()->connect("object_id_selected", callable_mp(this, &ScriptEditorDebugger::_remote_object_selected));
+	EditorFileSystem::get_singleton()->connect("resources_reimported", callable_mp(this, &ScriptEditorDebugger::_resources_reimported));
 
 	{ //debugger
 		VBoxContainer *vbc = memnew(VBoxContainer);

editor/debugger/script_editor_debugger.h

@@ -198,6 +198,8 @@ private:
 	void _video_mem_request();
 	void _video_mem_export();
 
+	void _resources_reimported(const PackedStringArray &p_resources);
+
 	int _get_node_path_cache(const NodePath &p_path);
 
 	int _get_res_path_cache(const String &p_path);

scene/debugger/scene_debugger.cpp

@@ -147,7 +147,6 @@ Error SceneDebugger::parse_message(void *p_user, const String &p_msg, const Arra
 		ERR_FAIL_COND_V(p_args.is_empty(), ERR_INVALID_DATA);
 		Transform2D transform = p_args[0];
 		scene_tree->get_root()->set_canvas_transform_override(transform);
-
 		runtime_node_select->_queue_selection_update();
 
 #ifndef _3D_DISABLED
@@ -164,16 +163,19 @@ Error SceneDebugger::parse_message(void *p_user, const String &p_msg, const Arra
 			scene_tree->get_root()->set_camera_3d_override_orthogonal(size_or_fov, depth_near, depth_far);
 		}
 		scene_tree->get_root()->set_camera_3d_override_transform(transform);
-
 		runtime_node_select->_queue_selection_update();
 #endif // _3D_DISABLED
 
 	} else if (p_msg == "set_object_property") {
 		ERR_FAIL_COND_V(p_args.size() < 3, ERR_INVALID_DATA);
 		_set_object_property(p_args[0], p_args[1], p_args[2]);
-
 		runtime_node_select->_queue_selection_update();
 
+	} else if (p_msg == "reload_cached_files") {
+		ERR_FAIL_COND_V(p_args.is_empty(), ERR_INVALID_DATA);
+		PackedStringArray files = p_args[0];
+		reload_cached_files(files);
+
 	} else if (p_msg.begins_with("live_")) { /// Live Edit
 		if (p_msg == "live_set_root") {
 			ERR_FAIL_COND_V(p_args.size() < 2, ERR_INVALID_DATA);
@@ -413,6 +415,15 @@ void SceneDebugger::remove_from_cache(const String &p_filename, Node *p_node) {
 	}
 }
 
+void SceneDebugger::reload_cached_files(const PackedStringArray &p_files) {
+	for (const String &file : p_files) {
+		Ref<Resource> res = ResourceCache::get_ref(file);
+		if (res.is_valid()) {
+			res->reload_from_file();
+		}
+	}
+}
+
 /// SceneDebuggerObject
 SceneDebuggerObject::SceneDebuggerObject(ObjectID p_id) {
 	id = ObjectID();

scene/debugger/scene_debugger.h

@@ -67,6 +67,7 @@ public:
 	static Error parse_message(void *p_user, const String &p_msg, const Array &p_args, bool &r_captured);
 	static void add_to_cache(const String &p_filename, Node *p_node);
 	static void remove_from_cache(const String &p_filename, Node *p_node);
+	static void reload_cached_files(const PackedStringArray &p_files);
 #endif
 };