Re: [PATCH] Make test for gnuplot work with empty strings.

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----- Ursprüngliche Mail -----
> On Mon, Mar 11 2013, Martin Steigerwald wrote:
> > When I launch fio_generate_plots on a system where gnuplot is not installed
> > I
> > get this error :
> > 
> > $ fio_generate_plots test
> > Making bw logs
> > /usr/bin/fio_generate_plots: 42: /usr/bin/fio_generate_plots: -: not found
> > 
> > That's because the test checking whether gnuplot is installed is failing
> > because of an empty variable :
> > GNUPLOT=$(which gnuplot)
> > if [ ! -x $GNUPLOT ]; then
> >         echo You need gnuplot installed to generate graphs
> >         exit 1
> > fi
> > 
> > Indeed the command "test -x" is exiting with code 0.
> > 
> > To correct this we should enclose the variable with quotes :
> > if [ ! -x "$GNUPLOT" ]; then
> > 
> > Then the script is going into the test properly :
> > $ fio_generate_plots test
> > You need gnuplot installed to generate graphs
> > 
> > I copied problem description by Hervé from the Debian bug report below.
> > 
> > Fixes:
> > Bug#700580: /usr/bin/fio_generate_plots: -: not found
> > http://bugs.debian.org/700580
> > 
> > Reported-By: Hervé Werner <hwerner@xxxxxxxxxxxx>
> > Tested-By: Hervé Werner <hwerner@xxxxxxxxxxxx>
> > Tested-By: Martin Steigerwald <ms@xxxxxxxxx>
> > ---
> >  fio_generate_plots |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/fio_generate_plots b/fio_generate_plots
> > index 4285415..5e2febd 100755
> > --- a/fio_generate_plots
> > +++ b/fio_generate_plots
> > @@ -8,7 +8,7 @@ if [ "$1"x = "x" ]; then
> >  fi
> >  
> >  GNUPLOT=$(which gnuplot)
> > -if [ ! -x $GNUPLOT ]; then
> > +if [ ! -x "$GNUPLOT" ]; then
> >  	echo You need gnuplot installed to generate graphs
> >  	exit 1
> >  fi
> 
> Thanks, obviously correct :-)

Still it doesn't seem you applied it as of

428b4f6ba681dbb40c8e2213d0c6ae8f8049dcd5ESC

of git://git.kernel.dk/fio.git

Fixing locally in Debian package now.

Thaqnks,
-- 
Martin Steigerwald - teamix GmbH - http://www.teamix.de
gpg: 19E3 8D42 896F D004 08AC A0CA 1E10 C593 0399 AE90
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