[tip:perf/core] perf tools: Fix the bash completion to support listing events for --event

[tip-bot for Yunlong Song <tipbot@zytor.com>]

Commit-ID:  3346b542f4165cb0007cfe3600866acbee67c686
Gitweb:     http://git.kernel.org/tip/3346b542f4165cb0007cfe3600866acbee67c686
Author:     Yunlong Song <yunlong.song@huawei.com>
AuthorDate: Wed, 18 Mar 2015 21:35:50 +0800
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 19 Mar 2015 13:49:37 -0300

perf tools: Fix the bash completion to support listing events for --event

The bash completion only supports -e rather than --event, so fix it.

Example:

Before this patch:

 $ perf record --event <TAB>
 $

As shown above, the events of record does not come out.

After this patch:

 $ perf record --event <TAB>
 lignment-faults                   cpu/instructions/
 L1-dcache-prefetch-misses          node-prefetches
 uncore_rbox_0/qpi0_idle_filt/
 branch-instructions                cpu/mem-loads/
 L1-dcache-store-misses             node-prefetch-misses
 uncore_rbox_0/qpi1_date_response/
 branch-load-misses                 cpu-migrations
 L1-dcache-stores                   node-store-misses
 uncore_rbox_0/qpi1_filt_send/
 branch-loads                       dTLB-load-misses
 L1-icache-load-misses              node-stores
 uncore_rbox_0/qpi1_idle_filt/
 ...

As shown above, the events of record 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/1426685758-25488-6-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/perf-completion.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 4b58ac2..3e25d3e 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -137,8 +137,8 @@ __perf_main ()
 			cmds=$($cmd --list-cmds)
 		fi
 		__perfcomp "$cmds" "$cur"
-	# List possible events for -e option
-	elif [[ $prev == "-e" && $prev_skip_opts == @(record|stat|top) ]]; then
+	# List possible events for -e and --event option
+	elif [[ $prev == @("-e"|"--event") && $prev_skip_opts == @(record|stat|top) ]]; then
 		evts=$($cmd list --raw-dump)
 		__perfcomp_colon "$evts" "$cur"
 	else