The '_get_comp_words_by_ref' function is available from the bash
completion v1.2 so that earlier version emits following warning:
$ perf re<TAB>_get_comp_words_by_ref: command not found
Use older '_get_cword' method when the above function doesn't exist.
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: David Ahern <dsah...@gmail.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
tools/perf/bash_completion | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index 1958fa539d0f..3d48cee1b5e5 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -1,12 +1,23 @@
# perf completion
+function_exists()
+{
+ declare -F $1 > /dev/null
+ return $?
+}
+
have perf &&
_perf()
{
- local cur cmd
+ local cur prev cmd
COMPREPLY=()
- _get_comp_words_by_ref cur prev
+ if function_exists _get_comp_words_by_ref; then
+ _get_comp_words_by_ref cur prev
+ else
+ cur=$(_get_cword)
+ prev=${COMP_WORDS[COMP_CWORD-1]}
+ fi
cmd=${COMP_WORDS[0]}
--
1.7.9.2
--
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