linux-kernel - [PATCH 10/13] perf tools: Add the bash completion for listing subsubcommands of perf test

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Date:	Wed, 18 Mar 2015 21:35:55 +0800
From:	Yunlong Song <yunlong.song@...wei.com>
To:	<a.p.zijlstra@...llo.nl>, <paulus@...ba.org>, <mingo@...hat.com>,
	<acme@...nel.org>
CC:	<linux-kernel@...r.kernel.org>, <wangnan0@...wei.com>
Subject: [PATCH 10/13] perf tools: Add the bash completion for listing subsubcommands of perf test

The bash completion does not support listing subsubcommands for 'perf
test <TAB>', so fix it.

Example:

Before this patch:

 $ perf test <TAB>
 $

As shown above, the subsubcommands of perf test does not come out.

After this patch:

 $ perf test <TAB>
 list

As shown above, the subsubcommands of perf test can come out now.

Signed-off-by: Yunlong Song <yunlong.song@...wei.com>
---
 tools/perf/perf-completion.sh   | 2 +-
 tools/perf/tests/builtin-test.c | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 8739a13..35f43fd 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -143,7 +143,7 @@ __perf_main ()
 		__perfcomp_colon "$evts" "$cur"
 	else
 		# List subcommands for perf commands
-		if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|data|help|script) ]]; then
+		if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|data|help|script|test) ]]; then
 			subcmds=$($cmd $prev_skip_opts --list-cmds)
 			__perfcomp_colon "$subcmds" "$cur"
 		fi
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 4b7d9ab..ed8e05c 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -291,7 +291,7 @@ static int perf_test__list(int argc, const char **argv)
 
 int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused)
 {
-	const char * const test_usage[] = {
+	const char *test_usage[] = {
 	"perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
 	NULL,
 	};
@@ -302,13 +302,14 @@ int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "be more verbose (show symbol address, etc)"),
 	OPT_END()
 	};
+	const char * const test_subcommands[] = { "list", NULL };
 	struct intlist *skiplist = NULL;
         int ret = hists__init();
 
         if (ret < 0)
                 return ret;
 
-	argc = parse_options(argc, argv, test_options, test_usage, 0);
+	argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
 	if (argc >= 1 && !strcmp(argv[0], "list"))
 		return perf_test__list(argc, argv);
 
-- 
1.8.5.2

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