On Sat, Mar 6, 2010 at 13:23, Junio C Hamano <gitster@xxxxxxxxx> wrote:
> It is expected that a Porcelain script that implements a custom feature
> may call diff-files, diff-index and other plumbing commands many times
> during its lifetime, and that it knows what it is doing (namely, when
> it touches the working tree itself and why).
Makes sense.
> Your Porcelain script should look something like:
>
> git update-index --refresh
> git diff-files -q || { echo "modified working tree"; exit 1 }
> git diff-index --cached -q HEAD || { echo "modified index"; exit 2 }
>
> See contrib/examples/*.sh for examples
Thanks, Junio. That does the trick, I'd recently found the
update-index command and had run into the problem (but not the
solution) that the call to diff-files addresses.
Cheers
Adam
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