linux-kernel - Re: [PATCH 02/12] perf test: Shell - only run .sh shell files to skip other files

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Message-ID: <20211216102220.4q6dtfc4q4qyy2it@maple.lan>
Date:   Thu, 16 Dec 2021 10:22:20 +0000
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     carsten.haitzler@...s.arm.com
Cc:     linux-kernel@...r.kernel.org, coresight@...ts.linaro.org,
        suzuki.poulose@....com, mathieu.poirier@...aro.org,
        mike.leach@...aro.org, leo.yan@...aro.org,
        inux-perf-users@...r.kernel.org, acme@...nel.org
Subject: Re: [PATCH 02/12] perf test: Shell - only run .sh shell files to
 skip other files

On Wed, Dec 15, 2021 at 04:03:53PM +0000, carsten.haitzler@...s.arm.com wrote:
> From: Carsten Haitzler <carsten.haitzler@....com>
> 
> You edit your scripts in the tests and end up with your usual shell
> backup files with ~ or .bak or something else at the end, but then your
> next perf test run wants to run the backups too. You might also have perf
> .data files in the directory or something else undesireable as well. You end
> up chasing which test is the one you edited and the backup and have to keep
> removing all the backup files, so automatically skip any files that are
> not plain *.sh scripts to limit the time wasted in chasing ghosts.
> 
> Signed-off-by: Carsten Haitzler <carsten.haitzler@....com>

Why require both executable *and* endswith('.sh')?


> ---
>  tools/perf/tests/builtin-test.c | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
> index ece272b55587..849737ead9fd 100644
> --- a/tools/perf/tests/builtin-test.c
> +++ b/tools/perf/tests/builtin-test.c
> @@ -297,7 +297,20 @@ static const char *shell_test__description(char *description, size_t size,
>  	for (int __i = 0; __i < nr && (ent = entlist[__i]); __i++)	\
>  		if (!is_directory(base, ent) && \
>  			is_executable_file(base, ent) && \
> -			ent->d_name[0] != '.')
> +			ent->d_name[0] != '.' && \
> +			(shell_file_is_sh(ent->d_name) == 0))
> +
> +static int shell_file_is_sh(const char *file)
> +{
> +	const char *ext;
> +
> +	ext = strchr(file, '.');

Shouldn't this be strrchr()?


Daniel.