On Thu, Oct 14, 2010 at 06:40:51PM +0400, Alexander Gladysh wrote:
> I'm *sometimes* (once in about ten times I use it -- repository
> changes between invocations of course) getting false positives from
> git diff-index when I invoke git from another directory:
>
> git --git-dir=path/to/.git --work-tree=path/to update-index -q --refresh
> git --git-dir=path/to/.git --work-tree=path/to diff-index --exit-code
> --quiet HEAD
>
> This is *really* annoying and really kills the benifits from my
> workflow automation scripts.
>
> Unfortunately I can't find a reproducible use case for this bug.
>
> Is there anything I can do to help catch it?
Can it reproduce over a large number of trials? I.e., something like:
while true; do
git ... update-index ...
git ... diff-index ... || echo failed
done
If so, try adding a "sleep 1" between the two commands. If that fixes
it, it implies a race condition in git.
You could also try running under valgrind to see if there are any bad
memory accesses, which could also produce intermittent buggy behavior.
-Peff
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