svnroot is a wrapper around
svn which safely applies a permission scheme
while updating a working copy. It is intended to ease placing one's root
filesystem under revision control.
You can download it and its associated manual page
Both are quite not finished yet.
Also, you may want to edit the perl script to change
the permission table's filename,
which is now
what the manual page claims (
As an alternative, you may want to have a look at David Hardeman's metastore.