### What needs to get done Add a `Plugin` method something like this: ```python def build_is_dirty(self) -> bool | None: """Check whether the build is dirty. :returns: True if the plugin knows the build is dirty, False if it knows it's clean, or None if unknown. """ return None ``` ### Why it needs to get done We got a request to be able to do an update rather than a skip. Question for @cmatsuoka - Do we possibly make this something that returns the requested ActionType instead? Still defaults to None, but if the plugin knows what ActionType it wants for the build step it can request that.