Merge pull request godotengine#101125 from axunes/master

macOS: Allow running unpacked game files from .app bundle resources

Author: akien-mga

core/config/project_settings.cpp

@@ -648,6 +648,28 @@ Error ProjectSettings::_setup(const String &p_path, const String &p_main_pack, b
 		return err;
 	}
 
+#ifdef MACOS_ENABLED
+	// Attempt to load project file from macOS .app bundle resources.
+	resource_path = OS::get_singleton()->get_bundle_resource_dir();
+	if (!resource_path.is_empty()) {
+		if (resource_path[resource_path.length() - 1] == '/') {
+			resource_path = resource_path.substr(0, resource_path.length() - 1); // Chop end.
+		}
+		Ref<DirAccess> d = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
+		ERR_FAIL_COND_V_MSG(d.is_null(), ERR_CANT_CREATE, vformat("Cannot create DirAccess for path '%s'.", resource_path));
+		d->change_dir(resource_path);
+
+		Error err;
+
+		err = _load_settings_text_or_binary(resource_path.path_join("project.godot"), resource_path.path_join("project.binary"));
+		if (err == OK && !p_ignore_override) {
+			// Optional, we don't mind if it fails.
+			_load_settings_text(resource_path.path_join("override.cfg"));
+			return err;
+		}
+	}
+#endif
+
 	// Nothing was found, try to find a project file in provided path (`p_path`)
 	// or, if requested (`p_upwards`) in parent directories.