Re: [Gnu-arch-users] Re: Tla spork

[Aaron Bentley]

Robin Green wrote:
> On Sat, Aug 28, 2004 at 02:47:45PM -0400, James Blackwell wrote:
>
> > The concept of changesets, the idea of never deleting history*
>
>
> Oh, you're perfectly able and allowed to delete history. Just archive-cycle,
> cacherev, and delete the old archive. What you mean is the idea of never
> being able to delete history without deleting all the previous history. ;-)
> I can't immediately think of a concise way of expressing that.

Actually, I disagree.  Deleting history is actually okay.  But if 
deleting revisions from a version is followed by commits, you're 
*changing* history, and that's forbidden, because a revision name 
describes a specific, unchangeable project tree state.

So I think the first principle is "a revision name represents only one 
tree state".

Aaron