Recursively copy file and folder structure to existing one

[absolute]

Hi all,

I have some folder structure with files (content nodes) in folders and content nodes may have some additional associations, like renditions. I have another set of folder and files.
All I need is to recursively copy one set of files and folders on the top of another one, so that if for example a folder exists at destination, but some files or sub-folders are missing in it, they will be added. The same with other associations. Basically the behavior I want to achieve is similar to some file manager - you either skip and files are added or overwrite them.

Is there some more or less standard way to do this with CopyService? I checked the CopyCallbacks but did not find anything suitable. It is always possible to iterate over a directory tree manually, but it is not really what I want. 

Do you have any ideas about this?

Thanks in advance!

[absolute]

I have solved this with iterating over a child tree manually but copying with copy service node by node (without children) if the node does not exist at the target location. Works like a charm

[mimu]

Could you be so nice to share your code as sample,
i woould like to do exactly the same.

Tahnkyou very much in advance
Michael