Examples of using a recursive Ivy deliver or publish

Does anyone have specific examples of using the Ivy 开发者_JAVA百科<deliver> or <publish> tasks with the delivertarget attribute to do recursive deliveries? The official documentation is rather...sparse. Are there any guidelines for when to use it rather than normal Ant "parent" build mechanisms (e.g., <subant>) to do the recursion?

Perhaps this will help: http://marc.info/?l=ivy-user&m=122191102120241