LU-12734 misc: allow older bash_completion versions

[fs/lustre-release.git] / lustre / scripts / bash-completion / lctl

diff --git a/lustre/scripts/bash-completion/lctl b/lustre/scripts/bash-completion/lctl
index 485bb69..e471e18 100644 (file)
--- a/lustre/scripts/bash-completion/lctl
+++ b/lustre/scripts/bash-completion/lctl
@@ -2,8 +2,15 @@ _lctl()
 {
        local cur prev words cword
 
-       _init_completion || return
        COMPREPLY=()
+       # allow different versions of bash_completion to work
+       if declare -F _init_completion > /dev/null; then
+               # this provides more functionality, but is only in v2.x
+               _init_completion || return
+       else
+               # this is compatible with both v1.3 and v2.x
+               _get_comp_words_by_ref -n : cur prev words cword
+       fi
 
        if [[ "$cword" == "1" ]]; then
                COMPREPLY=( $( compgen -W '$(lctl --list-commands |