Dropping core.worktree and GIT_WORK_TREE support (was Re: limiting relationship of git dir and worktree)

> On Sun, Aug 24, 2008 at 04:40:21PM -0700, Junio C Hamano wrote:
>
>> Judging from the occasional "I tried core.worktree but it does not work in
>> this and that situations" I see here and on #git, my impression is that
>> new people try it, saying "git is cool -- unlike cvs that sprinkles those
>> ugly CVS directories all over the place, it only contaminates my work tree
>> with a single directory '.git' and nothing else.  Ah, wait --- what's this
>> core.worktree thing?  Can I get rid of that last one as well?  That sounds
>> even cooler".
>> 
>> IOW, I do not think it is really _needed_ per-se as a feature, but it was
>> done because it was thought to be doable, which unfortunately turned out
>> to involve hair-pulling complexity that the two attempts that led to the
>> current code still haven't resolved.
>> 
>> I really wish we do not have to worry about that anymore.
>
> Well, as a non-user of this feature, I certainly have no argument
> against taking it out. Maybe the subject line will pull some other
> people into the discussion.