[PATCH 22/31] perf tools: Fix the bash completion for listing subcommands of perf

From: Arnaldo Carvalho de Melo
Date: Thu Mar 19 2015 - 13:06:52 EST

From: Yunlong Song <yunlong.song@xxxxxxxxxx>

The bash completion does not support listing subcommands for 'perf
--<long option> <TAB>'.


Before this patch:

$ perf --debug <TAB>

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

After this patch:

$ perf --debug <TAB>
annotate buildid-cache data evlist inject
kvm lock probe report script
test top version
bench buildid-list diff help kmem
list mem record sched stat
timechart trace

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

Signed-off-by: Yunlong Song <yunlong.song@xxxxxxxxxx>
Tested-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1426685758-25488-7-git-send-email-yunlong.song@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/perf/perf-completion.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 3e25d3ea17f9..7b98ae48f0bf 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -130,7 +130,7 @@ __perf_main ()
# Skip options backward and find the last perf command
# List perf subcommands or long options
- if [ $cword -eq 1 ]; then
+ if [ -z $prev_skip_opts ]; then
if [[ $cur == --* ]]; then
cmds=$($cmd --list-opts)

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