From c435a8f37ba79b922c556cc4a8c4ea1da3b6d45e Mon Sep 17 00:00:00 2001
From: kobewi <kobewi4e@gmail.com>
Date: Wed, 11 Sep 2024 16:06:12 +0200
Subject: [PATCH] Add simple minor version migration

---
 editor/project_manager.cpp | 43 ++++++++++++++++++++++++++++++++++++--
 editor/project_manager.h   |  6 ++++++
 2 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/editor/project_manager.cpp b/editor/project_manager.cpp
index 55c361de4b8..279590563ac 100644
--- a/editor/project_manager.cpp
+++ b/editor/project_manager.cpp
@@ -580,7 +580,7 @@ void ProjectManager::_open_selected_projects_ask() {
 	if (!unsupported_features.is_empty()) {
 		String warning_message = "";
 		for (int i = 0; i < unsupported_features.size(); i++) {
-			String feature = unsupported_features[i];
+			const String &feature = unsupported_features[i];
 			if (feature == "Double Precision") {
 				warning_message += TTR("Warning: This project uses double precision floats, but this version of\nGodot uses single precision floats. Opening this project may cause data loss.\n\n");
 				unsupported_features.remove_at(i);
@@ -590,6 +590,7 @@ void ProjectManager::_open_selected_projects_ask() {
 				unsupported_features.remove_at(i);
 				i--;
 			} else if (ProjectList::project_feature_looks_like_version(feature)) {
+				version_convert_feature = feature;
 				warning_message += vformat(TTR("Warning: This project was last edited in Godot %s. Opening will change it to Godot %s.\n\n"), Variant(feature), Variant(VERSION_BRANCH));
 				unsupported_features.remove_at(i);
 				i--;
@@ -610,6 +611,16 @@ void ProjectManager::_open_selected_projects_ask() {
 	_open_selected_projects();
 }
 
+void ProjectManager::_open_selected_projects_with_migration() {
+#ifndef DISABLE_DEPRECATED
+	if (project_list->get_selected_projects().size() == 1) {
+		// Only migrate if a single project is opened.
+		_minor_project_migrate();
+	}
+#endif
+	_open_selected_projects();
+}
+
 void ProjectManager::_install_project(const String &p_zip_path, const String &p_title) {
 	project_dialog->set_mode(ProjectDialog::MODE_INSTALL);
 	project_dialog->set_zip_path(p_zip_path);
@@ -877,6 +888,34 @@ void ProjectManager::add_new_tag(const String &p_tag) {
 
 // Project converter/migration tool.
 
+#ifndef DISABLE_DEPRECATED
+void ProjectManager::_minor_project_migrate() {
+	const ProjectList::Item migrated_project = project_list->get_selected_projects()[0];
+
+	if (version_convert_feature.begins_with("4.3")) {
+		// Migrate layout after scale changes.
+		const float edscale = EDSCALE;
+		if (edscale != 1.0) {
+			Ref<ConfigFile> layout_file;
+			layout_file.instantiate();
+
+			const String layout_path = migrated_project.path.path_join(".godot/editor/editor_layout.cfg");
+			Error err = layout_file->load(layout_path);
+			if (err == OK) {
+				for (int i = 0; i < 4; i++) {
+					const String key = "dock_hsplit_" + itos(i + 1);
+					int old_value = layout_file->get_value("docks", key, 0);
+					if (old_value != 0) {
+						layout_file->set_value("docks", key, old_value / edscale);
+					}
+				}
+				layout_file->save(layout_path);
+			}
+		}
+	}
+}
+#endif
+
 void ProjectManager::_full_convert_button_pressed() {
 	ask_update_settings->hide();
 	ask_full_convert_dialog->popup_centered(Size2i(600.0 * EDSCALE, 0));
@@ -1487,7 +1526,7 @@ ProjectManager::ProjectManager() {
 
 		ask_update_settings = memnew(ConfirmationDialog);
 		ask_update_settings->set_autowrap(true);
-		ask_update_settings->get_ok_button()->connect(SceneStringName(pressed), callable_mp(this, &ProjectManager::_open_selected_projects));
+		ask_update_settings->get_ok_button()->connect(SceneStringName(pressed), callable_mp(this, &ProjectManager::_open_selected_projects_with_migration));
 		full_convert_button = ask_update_settings->add_button(TTR("Convert Full Project"), !GLOBAL_GET("gui/common/swap_cancel_ok"));
 		full_convert_button->connect(SceneStringName(pressed), callable_mp(this, &ProjectManager::_full_convert_button_pressed));
 		add_child(ask_update_settings);
diff --git a/editor/project_manager.h b/editor/project_manager.h
index 669b5d8b6c5..aad51d0e985 100644
--- a/editor/project_manager.h
+++ b/editor/project_manager.h
@@ -176,6 +176,7 @@ class ProjectManager : public Control {
 	void _run_project_confirm();
 	void _open_selected_projects();
 	void _open_selected_projects_ask();
+	void _open_selected_projects_with_migration();
 
 	void _install_project(const String &p_zip_path, const String &p_title);
 	void _import_project();
@@ -223,6 +224,11 @@ class ProjectManager : public Control {
 	ConfirmationDialog *ask_update_settings = nullptr;
 	Button *full_convert_button = nullptr;
 
+	String version_convert_feature;
+
+#ifndef DISABLE_DEPRECATED
+	void _minor_project_migrate();
+#endif
 	void _full_convert_button_pressed();
 	void _perform_full_project_conversion();