The bash completion does not support listing subsubcommands for 'perf
kvm|kmem|mem|lock|sched --<long option> <TAB>', where 'kvm|kmem|mem|
lock|sched' are all subcommands of perf.
Example:
Before this patch:
$ perf kvm --verbose <TAB>
$
As shown above, the subsubcommands of perf kvm does not come out.
After this patch:
$ perf kvm --verbose <TAB>
buildid-list diff record report stat
top
As shown above, the subsubcommands of perf kvm can come out now.
Signed-off-by: Yunlong Song <yunlong.s...@huawei.com>
---
tools/perf/perf-completion.sh | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 4822ed3..bbb61d0 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -100,6 +100,23 @@ __perfcomp_colon ()
__ltrim_colon_completions $cur
}
+__perf_prev_skip_opts ()
+{
+ local i cmd_ cmds_
+
+ let i=cword-1
+ cmds_=$($cmd --list-cmds)
+ prev_skip_opts=()
+ while [ $i -ge 0 ]; do
+ for cmd_ in $cmds_; do
+ if [[ ${words[i]} == $cmd_ ]]; then
+ prev_skip_opts=${words[i]}
+ return
+ fi
+ done
+ ((i--))
+ done
+}
__perf_main ()
{
local cmd
@@ -107,6 +124,8 @@ __perf_main ()
cmd=${words[0]}
COMPREPLY=()
+ # 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 [[ $cur == --* ]]; then
@@ -121,8 +140,8 @@ __perf_main ()
__perfcomp_colon "$evts" "$cur"
else
# List subcommands for perf commands
- if [[ $prev == @(kvm|kmem|mem|lock|sched) ]]; then
- subcmds=$($cmd $prev --list-cmds)
+ if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched) ]]; then
+ subcmds=$($cmd $prev_skip_opts --list-cmds)
__perfcomp_colon "$subcmds" "$cur"
fi
# List long option names
--
1.8.5.2
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