Re: What a modern collaboration toolkit looks like

[Richard Stallman]

    A distributed VCS can be used just like CVS.  The fans of distributed
    VCS systems like to talk about the many benefits of a distributed
    system, but I don't know of a single major project that uses a dVCS
    that doesn't have a canonical URL.  For example, if you wanted to
    start hacking on git (assuming you had a copy of git installed
    already) you could do:

    git clone git://git.kernel.org/pub/scm/git/git.git/

That is good.

Can you explain what that URL means?  Does the URL identify a specific
revision?  Or does the URL identify a repository?  If it identifies a
repository, how does git decide which revision to get?