CVS---Concurrent Versions System. Node: release options
A.15.1: release options
release command supports one command option:
Delete your working copy of the file if the release
succeeds. If this flag is not given your files will
remain in your working directory.
release command deletes
all directories and files recursively. This
has the very serious side-effect that any directory
that you have created inside your checked-out sources,
and not added to the repository (using the
command; see Adding files) will be silently deleted---even
if it is non-empty!