CVS: Get the state of some branch in some date

Question

Hello

I have a big project with branches. All development is concentrated in the branch. I want to get the state of this branch at some time ago, but can't

 cvs up -r branch_name -D 2010-05-01

gives me (in cvs status Makefile) the sticky tag, but the newest version of file, not at 2010-05-01

Answer 1

This should do the trick:

cvs up -r branch_name:2010-05-01

The colon syntax is only documented for the -j option but probably works for -r, too.