how to get the source tree

[Man Chan]

Hi,

I had tried to obtain the source tree of my system (8.2 release) this afternoon and feel miss about the command cvs.
I use the following.
cvs get -rRELENG_8_2 ports  after several minutes only the CVS is in the /usr/ports and nothing else. I search the handbook and the internet for the answer but no useful answer.  Can anyone tell me what is the correct command (cvs)  to get the source and keep it up to date.  Thanks.

Man