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perf tools: Complete tracepoint event names

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Currently tracepoint events cannot be completed because they contain a
colon (:) character.  The colon is considered as a word separator when
bash completion is done - variable COMP_WORDBREAKS contains colon - so
if a word being completed contains a colon it can be a problem.

Recent versions of bash completion provide -n switch to
_get_comp_words_by_ref and __ltrim_colon_completions functions in order
to resolve this issue.  Copy the latter in case not exists.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349328234-16995-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2012-10-04 14:23:54 +09:00 committed by Arnaldo Carvalho de Melo
parent e60fc847ce
commit ae0c1f9934
1 changed files with 16 additions and 2 deletions
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18
tools/perf/bash_completion
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@ -6,6 +6,19 @@ function_exists()
return $?
}
function_exists __ltrim_colon_completions ||
__ltrim_colon_completions()
{
if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
# Remove colon-word prefix from COMPREPLY items
local colon_word=${1%${1##*:}}
local i=${#COMPREPLY[*]}
while [[ $((--i)) -ge 0 ]]; do
COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
done
fi
}
have perf &&
_perf()
{
@ -13,9 +26,9 @@ _perf()
COMPREPLY=()
if function_exists _get_comp_words_by_ref; then
_get_comp_words_by_ref cur prev
_get_comp_words_by_ref -n : cur prev
else
cur=$(_get_cword)
cur=$(_get_cword :)
prev=${COMP_WORDS[COMP_CWORD-1]}
fi
@ -35,6 +48,7 @@ _perf()
elif [[ $prev == "-e" && "${COMP_WORDS[1]}" == @(record|stat|top) ]]; then
evts=$($cmd list --raw-dump)
COMPREPLY=( $( compgen -W '$evts' -- "$cur" ) )
__ltrim_colon_completions $cur
# List long option names
elif [[ $cur == --* ]]; then
subcmd=${COMP_WORDS[1]}