Resource.Cache
val resource_state : t -> build_status
val resource_changed : t -> unit
val resource_has_changed : t -> bool
val resource_built : t -> unit
val resource_failed : t -> unit
val import_in_build_dir : t -> unit
val resume_resource : t -> unit
val resume_suspension : suspension -> unit
val clear_resource_failed : t -> unit
val external_is_up_to_date : t -> bool
val dependencies : t -> Resources.t
val print_cache : Format.formatter -> unit -> unit
val print_dependencies : Format.formatter -> unit -> unit