linux-kernel - [PATCH 19/23] perf script: Add -q/--quiet option

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Date:   Wed,  8 Mar 2017 00:08:47 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Jiri Olsa <jolsa@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, kernel-team@....com
Subject: [PATCH 19/23] perf script: Add -q/--quiet option

The -q/--quiet option is to suppress any message.  Sometimes users just
want to run the command and it can be used for that case.

Suggested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/Documentation/perf-script.txt | 8 ++++++++
 tools/perf/builtin-script.c              | 4 ++++
 2 files changed, 12 insertions(+)

diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 4ed5f239ba7d..24f7e36a4fe8 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -75,6 +75,14 @@ OPTIONS
 <command>...::
 	Any command you can specify in a shell.
 
+-v::
+--verbose::
+        Be more verbose. (show debug messages, etc)
+
+-q::
+--quiet::
+	Do not show any message.  (Suppress -v)
+
 -D::
 --dump-raw-trace=::
         Display verbose dump of the trace data.
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index d1c95f0b8a0f..f46498f2e73a 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2122,6 +2122,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "dump raw trace in ASCII"),
 	OPT_INCR('v', "verbose", &verbose,
 		 "be more verbose (show symbol address, etc)"),
+	OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
 	OPT_BOOLEAN('L', "Latency", &latency_format,
 		    "show latency attributes (irqs/preemption disabled, etc)"),
 	OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
@@ -2210,6 +2211,9 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 	argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
 
+	if (quiet)
+		perf_quiet_option();
+
 	file.path = input_name;
 	file.force = symbol_conf.force;
 
-- 
2.11.0