[PATCH 6/6] perf tools: Make rm_rf to remove single file

From: Jiri Olsa <jolsa@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>,
	lkml <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 6/6] perf tools: Make rm_rf to remove single file
Date: Wed, 20 Feb 2019 13:28:00 +0100	[thread overview]
Message-ID: <20190220122800.864-7-jolsa@kernel.org> (raw)
In-Reply-To: <20190220122800.864-1-jolsa@kernel.org>

Let rm_rf remove file if it's provided by path.

Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-whhp3ej5795l9dc86xfyyp74@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/util.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 320b0fef249a..3ee410fc047a 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -120,16 +120,26 @@ int mkdir_p(char *path, mode_t mode)
 int rm_rf(const char *path)
 {
 	DIR *dir;
-	int ret = 0;
+	int ret;
 	struct dirent *d;
 	char namebuf[PATH_MAX];
+	struct stat statbuf;
 
+	/* Do not fail if there's no file. */
+	ret = lstat(path, &statbuf);
+	if (ret)
+		return 0;
+
+	/* Try to remove any file we get. */
+	if (!(statbuf.st_mode & S_IFDIR))
+		return unlink(path);
+
+	/* We have directory in path. */
 	dir = opendir(path);
 	if (dir == NULL)
-		return 0;
+		return -1;
 
 	while ((d = readdir(dir)) != NULL && !ret) {
-		struct stat statbuf;
 
 		if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
 			continue;
-- 
2.17.2

