Telling if two trees are different

[Robert Collins]

On Thu, 2008-10-23 at 13:25 -0500, John Arbash Meinel wrote:
> 
> I don't believe it will matter (yet) if the RevisionTrees are in
> different repositories, etc. As they will have loaded their full
> Inventory objects to do the comparison.

Thats correct.

> 
> When Robert's inventory work lands, then things might be a bit
> different.

iter_changes will still be the cleanest api for telling things apart;
and should be pretty tooting quick.

>  Also, if one is a working tree, and the other is the basis
> tree, we have an optimized path for 'iter_changes'.

We should also have an optimised two-step put in place under the hood
for basis->wt composition to get to arbitrary_rev->wt, as part of the
split inventory work.

-Rob

-- 
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