Re: git-diff-tree rename detection for single file

Linus Torvalds <torvalds@osdl.org> writes:

> See what I'm saying?
> ...
> The performance impact of pruning the pathnames _before_ diffing them was 
> absolutely staggering. You couldn't reasonably do a "git-whatchanged -p" 

Yes, I understood and agreed to that logic on May 27th.  That's
why the message you are responding said we could add a new flag,
to give the choice to the user to accept full-tree scan.

The "diff-tree --stdin that follows rename history" example
might want to have some change in either the core side of diff,
or in the rev-list.  It may help to have both.  I still haven't
thought through the issues.

BTW, I really liked your example that piped multiple diff-trees
together.  That is a neat trick.

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