get_path() in Resource returns a empty string when it is created on disk.

[leandro-benedet-garcia]

Tested versions

v4.2.1.stable.gentoo [b09f793]

System information

Godot v4.2.1.stable (b09f793) - Gentoo 2.14 - Wayland - GLES3 (Compatibility) - NVIDIA GeForce GTX 965M (nvidia; 550.67) - Intel(R) Core(TM) i5-6300HQ CPU @ 2.30GHz (4 Threads)

Issue description

I have this resource file:

@tool
extends Resource
class_name TestResource

@export var library_owner: string = default_var()

func default_var():
    print(get_path())

Instead of printing the path the resource was created, it will be blank instead.

I was hoping it to not be blank so I could develop a reusable plugin that executed something on the folder where the resource was created.

Steps to reproduce

Save the above resource, then create a new file using said resource.

Minimal reproduction project (MRP)

n/a

[tracefree]

Hi! It looks like this happens because the resource is initialized before you even get to choose the path in the file picker dialog. Resources don't seem to have a notification for when they are saved to disk, but the following hacky workaround using EditorFileSystem works:

@tool
extends Resource
class_name TestResource

@export var library_owner: String = await default_var()


func default_var() -> String:
	await EditorInterface.get_resource_filesystem().filesystem_changed
	print(get_path())
	return get_path()

[leandro-benedet-garcia]

I thought that would be the issue, but what I would expect is an error to occur to tell me it could not be done, to exist a signal that is executed when a resource is created or at least a note in the documentation saying it was a expected behavior.

None of those things seem to be the case so I would say it is indeed a bug.

Ideally we would have the signal tho. That would be quite handy.