Reconstructing the .svn directory

Hi,
Part of my development process is to delete and regenerate an entire
directory of code. (I know, why put it under source control, but it is).
My problem is that I often inadvertently also delete .svn directories
in this and sub-directories.
Currently my only means of reconstructing the .svn directories is to
change the name of the current directory, checkout a new copy, move the
.svn directory to the renamed directory, delete the checked out
directory and finally change the name of the original directory back to
what it was.
Is there an easier way? All I want is to retrieve the .svn directory
from the repository for a given sub-directory.

Thanks,

-- 
Greg Shaw
Decisionware Pty. Ltd
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