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SubjectRe: [RESEND PATCH] selftests/ftrace: Handle the absence of tput
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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@goodmis.org>
> Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
> Signed-off-by: Juerg Haefliger <juergh@canonical.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.

thanks,
-- Shuah

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