linux-kernel - Re: [RESEND PATCH] selftests/ftrace: Handle the absence of tput

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Date:   Mon, 25 Feb 2019 16:02:57 +0100
From:   Juerg Haefliger <juerg.haefliger@...onical.com>
To:     shuah <shuah@...nel.org>
Cc:     Juerg Haefliger <juerg.haefliger@...onical.com>,
        rostedt@...dmis.org, mingo@...hat.com,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH] selftests/ftrace: Handle the absence of tput

On Mon, 25 Feb 2019 07:51:13 -0700
shuah <shuah@...nel.org> wrote:

> On 2/25/19 6:14 AM, Juerg Haefliger wrote:
> > In environments where tput is not available, we get the following
> > error
> > $ ./ftracetest: 163: [: Illegal number:
> > because ncolors is an empty string. Fix that by setting it to 0 if the
> > tput command fails.
> > 
> > Acked-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
> > Acked-by: Masami Hiramatsu <mhiramat@...nel.org>
> > Signed-off-by: Juerg Haefliger <juergh@...onical.com>
> > ---
> >   tools/testing/selftests/ftrace/ftracetest | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
> > index 75244db70331..fc755e1b50f1 100755
> > --- a/tools/testing/selftests/ftrace/ftracetest
> > +++ b/tools/testing/selftests/ftrace/ftracetest
> > @@ -154,13 +154,13 @@ fi
> >   
> >   # Define text colors
> >   # Check available colors on the terminal, if any
> > -ncolors=`tput colors 2>/dev/null`
> > +ncolors=`tput colors 2>/dev/null || echo 0`
> >   color_reset=
> >   color_red=
> >   color_green=
> >   color_blue=
> >   # If stdout exists and number of colors is eight or more, use them
> > -if [ -t 1 -a "$ncolors" -a "$ncolors" -ge 8 ]; then
> > +if [ -t 1 -a "$ncolors" -ge 8 ]; then
> >     color_reset="\e[0m"
> >     color_red="\e[31m"
> >     color_green="\e[32m"
> >   
> 
> Juerg!
> 
> Thanks for the resend. Applied to linux-kselftest next for 5.1-rc1.
> 
> Since I applied this patch out of order, I had to resolve minor merge
> conflict. Please review.

Looks good.

Thanks Shuah!
..Juerg


> thanks,
> -- Shuah


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