Re: [PATCH tip/core/rcu 39/45] rcutorture: Note diffs from git commits

From: Paul E. McKenney
Date: Fri May 09 2014 - 20:51:35 EST


On Wed, May 07, 2014 at 03:17:42PM -0700, josh@xxxxxxxxxxxxxxxx wrote:
> On Mon, Apr 28, 2014 at 05:25:27PM -0700, Paul E. McKenney wrote:
> > From: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
> >
> > The current scripting only keeps track of the git SHA-1 of the current
> > HEAD. This can cause confusion in cases where testing ran in a git
> > tree where changes had not yet been checked in. This commit therefore
> > also records the output of "git diff HEAD" to provide the information
> > needed to reconstruct the source tree that was tested.
> >
> > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
>
> Nit below.
> Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
>
> > ---
> > tools/testing/selftests/rcutorture/bin/kvm.sh | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
> > index 4eed2a4f42c7..91661845fdec 100644
> > --- a/tools/testing/selftests/rcutorture/bin/kvm.sh
> > +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
> > @@ -277,6 +277,11 @@ if test -d .git
> > then
> > git status >> $resdir/$ds/testid.txt
> > git rev-parse HEAD >> $resdir/$ds/testid.txt
> > + git diff HEAD > $T/git-diff 2>&1
> > + if test -s $T/git-diff
>
> You don't need test here; you can use the return value of git diff.

Oddly enough, the "git diff" man page does not say anything about the
exit value. At least not that I could find...

Thanx, Paul

> > + then
> > + cp $T/git-diff $resdir/$ds
> > + fi
> > fi
> > ___EOF___
> > awk < $T/cfgcpu.pack \
> > --
> > 1.8.1.5
> >
>

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