The CVS/Root
file shows the location of the CVS repository.
burhan@orion:/dev/shm/cvstest/test$ cat CVS/Root
:ext:burhan@cvs:/vol/cvsroot
The CVS/Repository
files shows you the location of the current directory under the CVS repository.
burhan@orion:/dev/shm/cvstest/test$ cat CVS/Repository
cvstest/test
I don't know exactly what information from bzr info
you are after but a combination of the above should help.