Add version to block script data

Author: manuq

addons/block_code/block_code_plugin.gd

@@ -44,13 +44,20 @@ const DISABLED_CLASSES := [
 ]
 
 
+func _get_version():
+	var version: String = get_plugin_version()
+	if version.match("$*$"):
+		return "development"
+	return version
+
+
 func _enter_tree():
 	Types.init_cast_graph()
 
 	editor_inspector = EditorInterface.get_inspector()
 
 	main_panel = MainPanel.instantiate()
-	main_panel.undo_redo = get_undo_redo()
+	main_panel.setup(_get_version(), get_undo_redo())
 
 	# Add the main panel to the editor's main viewport.
 	EditorInterface.get_editor_main_screen().add_child(main_panel)

addons/block_code/block_script_data/block_script_data.gd

@@ -4,9 +4,11 @@ extends Resource
 @export var script_inherits: String
 @export var block_trees: SerializedBlockTreeNodeArray
 @export var generated_script: String
+@export var version: String
 
 
-func _init(p_script_inherits: String = "", p_block_trees: SerializedBlockTreeNodeArray = null, p_generated_script: String = ""):
+func _init(p_script_inherits: String = "", p_block_trees: SerializedBlockTreeNodeArray = null, p_generated_script: String = "", p_version: String = ""):
 	script_inherits = p_script_inherits
 	block_trees = p_block_trees
 	generated_script = p_generated_script
+	version = p_version

addons/block_code/ui/main_panel.gd

@@ -18,6 +18,7 @@ var _scene_root: Node
 var _block_code_nodes: Array
 var _collapsed: bool = false
 
+var plugin_version: String
 var undo_redo: EditorUndoRedoManager
 
 
@@ -33,6 +34,11 @@ func _ready():
 	_collapse_button.icon = _icon_collapse
 
 
+func setup(p_plugin_version: String, p_undo_redo: EditorUndoRedoManager):
+	plugin_version = p_plugin_version
+	undo_redo = p_undo_redo
+
+
 func _on_undo_redo_version_changed():
 	if _current_block_code_node == null:
 		return
@@ -47,6 +53,16 @@ func _on_button_pressed():
 	_print_generated_script()
 
 
+func _try_migration():
+	var script_version = _current_block_code_node.block_script.version
+	if script_version == plugin_version:
+		# No migration needed.
+		return
+	if script_version.is_empty():
+		script_version = "none"
+	push_warning("Migration not implemented from %s to %s" % [script_version, plugin_version])
+
+
 func switch_scene(scene_root: Node):
 	_title_bar.scene_selected(scene_root)
 
@@ -58,6 +74,7 @@ func switch_script(block_code_node: BlockCode):
 	_title_bar.bsd_selected(block_script)
 	_block_canvas.bsd_selected(block_script)
 	if block_code_node:
+		_try_migration()
 		EditorInterface.set_main_screen_editor("Block Code")
 
 
@@ -76,6 +93,7 @@ func save_script():
 	var generated_script = _block_canvas.generate_script_from_current_window(block_script.script_inherits)
 	block_script.block_trees = block_trees
 	block_script.generated_script = generated_script
+	block_script.version = plugin_version
 
 	undo_redo.add_do_property(_current_block_code_node.block_script, "block_trees", block_trees)
 	undo_redo.add_do_property(_current_block_code_node.block_script, "generated_script", generated_script)