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Description

The tar_prune() function is a somewhat dangerous intermediate between tar_destroy() (which deletes the entire target store, and tar_delete() (which deletes only the specified target). While tar_prune() is designed to remove unused targets from the target store, it's not obvious to the user which targets/files will actually be deleted. I wonder if it would be possible to include a "dry-run" option that would print a list of unused targets that will be removed, or otherwise indicate to the user which targets will be destroyed. Apologies if this functionality is already contained within another function/can be generated easily using tar_meta().