Junio C Hamano, Thu, Dec 07, 2006 23:29:54 +0100:
quoted text
> > But aside from me trying ignoreState, can anyone help me with that
> > question regarding checking if the index is any different from HEAD?
> 
> Comparing index and HEAD should be cheap on a system with slow
> lstat(), I think, as "git-diff-index --cached HEAD" should just
> ignore the working tree altogether.  Is that what you want?
> 

yes, except that it'll compare the whole trees. Could I make it stop
at first mismatch? "-q|--quiet" for git-diff-index perhaps?
It's just not only stat, but also, open, read, mmap (yes, I try to use
it for packs) and close are really slow here as well.

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