On Fri, 8 Sep 2023 18:17:21 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> From: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
>
> When I'm debugging something with the ftrace selftests and need to look at
> the logs, it becomes tedious that I need to do the following:
>
> ls -ltr logs
> [ copy the last directory ]
> ls logs/<paste-last-dir>
>
> to see where the logs are.
>
> Instead, do the common practice of having a "latest" softlink to the last
> run selftest. This way after running the selftest I only need to do:
>
> ls logs/latest/
>
> and it will always give me the directory of the last run selftest logs!
>
Nice! I like this and this looks good to me.
Acked-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Thank you!
> Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
> ---
>
> diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
> index cb5f18c06593..7df8baa0f98f 100755
> --- a/tools/testing/selftests/ftrace/ftracetest
> +++ b/tools/testing/selftests/ftrace/ftracetest
> @@ -124,6 +124,7 @@ parse_opts() { # opts
> ;;
> --logdir|-l)
> LOG_DIR=$2
> + LINK_PTR=
> shift 2
> ;;
> *.tc)
> @@ -181,7 +182,10 @@ fi
> TOP_DIR=`absdir $0`
> TEST_DIR=$TOP_DIR/test.d
> TEST_CASES=`find_testcases $TEST_DIR`
> -LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`/
> +LOG_TOP_DIR=$TOP_DIR/logs
> +LOG_DATE=`date +%Y%m%d-%H%M%S`
> +LOG_DIR=$LOG_TOP_DIR/$LOG_DATE/
> +LINK_PTR=$LOG_TOP_DIR/latest
> KEEP_LOG=0
> KTAP=0
> DEBUG=0
> @@ -207,6 +211,10 @@ else
> LOG_FILE=$LOG_DIR/ftracetest.log
> mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
> date > $LOG_FILE
> + if [ "x-$LINK_PTR" != "x-" ]; then
> + unlink $LINK_PTR
> + ln -fs $LOG_DATE $LINK_PTR
> + fi
> fi
>
> # Define text colors
--
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
