Need one shot post-commit hook in cvs

[Mark]

If you use loginfo in the admin directory to setup
a script to be called post commit, it can be
called multiple times.  I need a way to have 
a single commit event only call the post commit
hook script just once even if multiple files
are being checked in.  What cvs actually does
is call each loginfo entry once per directory
and passes as the argument to the script
the directory and the list of files.

Is there a way to do this
inside cvs?  I want to keep the implementation
of this script call inside cvs so it's protected
by the cvs locking.

thanks,
Mark