[PATCH 2/3] perf test: Shell - only run .sh shell files to skip other files

[carsten.haitzler@foss.arm.com]

From: Carsten Haitzler <carsten.haitzler@arm.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@arm.com>
---
 tools/perf/tests/builtin-test.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 3c34cb766724..3a02ba7a7a89 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -296,9 +296,22 @@ static const char *shell_test__description(char *description, size_t size,
 
 #define for_each_shell_test(entlist, nr, base, ent)	                \
 	for (int __i = 0; __i < nr && (ent = entlist[__i]); __i++)	\
-		if (!is_directory(base, ent) && \
+		if (ent->d_name[0] != '.' && \
+			!is_directory(base, ent) && \
 			is_executable_file(base, ent) && \
-			ent->d_name[0] != '.')
+			is_shell_script(ent->d_name))
+
+static bool is_shell_script(const char *file)
+{
+	const char *ext;
+
+	ext = strrchr(file, '.');
+	if (!ext)
+		return false;
+	if (!strcmp(ext, ".sh"))
+		return true;
+	return false;
+}
 
 static const char *shell_tests__dir(char *path, size_t size)
 {
-- 
2.32.0