In Ant, copy all files from a tree of folders into a single folder?

Is it possible to use Ant to copy all the files (not folders) from a hierarchy of folders into one destination folder?

For instance, I have a tre开发者_运维知识库e like this:

res
|-images
|  |-fg.png
|  +-bg.png
+-sounds
   +-music.mp3

And I would like a result like this:

data
|-fg.png
|-bg.png
+-music.mp3

The way things are named, filename conflicts are not an issue.

Is this possible to do with Ant?

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You can use the flatten attribute of the copy task to accomplish this. You can read more at http://ant.apache.org/manual/Tasks/copy.html.