On Wed, 14 Mar 2007, Junio C Hamano wrote:
> "Alex Riesen" <raa.lkml@xxxxxxxxx> writes:
>
> > Now I'm happy :)
> >
> > ~/linux$ time git diff-tree -r -s v2.6.16 v2.6.20
> >
> > real 0m0.137s
> > user 0m0.117s
> > sys 0m0.020s
> > ~/linux$ time ~/projects/git-diff/git-diff-tree -r --quiet v2.6.16 v2.6.20
> >
> > real 0m0.006s
> > user 0m0.000s
> > sys 0m0.007s
>
> You do not need diff-tree --quiet to do that!
>
> $ git-rev-parse v2.6.16^{tree} v2.6.20^{tree}
Well, if you have a path-spec, it can certainly matter.
Personally, I think it's more interesting if this can make a difference
for something like
git log v2.6.12.. -- drivers/ > /dev/null
but that would require that we actually understand that we can stop early
if we ever get to REV_TREE_DIFFERENT. I didn't check if you actually did
that optimization.
Linus
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