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Subject[tip:perf/core] perf tools: Fix the bash completion for listing subcommands of perf
Commit-ID:  e003ce54d2ccbb8da0fd4f421e1cc9686ef25add
Gitweb: http://git.kernel.org/tip/e003ce54d2ccbb8da0fd4f421e1cc9686ef25add
Author: Yunlong Song <yunlong.song@huawei.com>
AuthorDate: Wed, 18 Mar 2015 21:35:51 +0800
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 19 Mar 2015 13:49:38 -0300

perf tools: Fix the bash completion for listing subcommands of perf

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

Example:

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@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1426685758-25488-7-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
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 3e25d3e..7b98ae4 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
__perf_prev_skip_opts
# List perf subcommands or long options
- if [ $cword -eq 1 ]; then
+ if [ -z $prev_skip_opts ]; then
if [[ $cur == --* ]]; then
cmds=$($cmd --list-opts)
else

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