perf tools: Auto-complete for events with ':'

It's a follow up patch for a previous patch "perf tool: Return all
events as auto-completions after comma".

With this patch, auto-completion can work well for events with a ':'.
For example:

  root@skl:/tmp# perf stat -e block:block_<TAB>
  block:block_bio_backmerge   block:block_rq_complete
  block:block_bio_bounce      block:block_rq_insert
  block:block_bio_complete    block:block_rq_issue
  block:block_bio_frontmerge  block:block_rq_remap
  block:block_bio_queue       block:block_rq_requeue
  block:block_bio_remap       block:block_sleeprq
  block:block_dirty_buffer    block:block_split
  block:block_getrq           block:block_touch_buffer
  block:block_plug            block:block_unplug

  root@skl:/tmp# perf stat -e block:block_rq_<TAB>
  block:block_rq_complete  block:block_rq_issue     block:block_rq_requeue
  block:block_rq_insert    block:block_rq_remap

  root@skl:/tmp# perf stat -e block:block_rq_complete<TAB>
  block:block_rq_complete

  root@skl:/tmp# perf stat -e block:block_rq_complete

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1513973758-19109-1-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 90206413f4d758165d5719038571e54635d69060..fdf75d45efff7a413347d215851f93f2a8f5bfb3 100644 (file)
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -280,6 +280,11 @@ _perf()
                export COMP_WORDBREAKS
        fi
 
+       if [[ "$COMP_WORDBREAKS" == *:* ]]; then
+               COMP_WORDBREAKS="${COMP_WORDBREAKS/:/}"
+               export COMP_WORDBREAKS
+       fi
+
        local cur words cword prev
        if [ $preload_get_comp_words_by_ref = "true" ]; then
                _get_comp_words_by_ref -n =:, cur words cword prev