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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-06-28 14:41:42 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-07-01 01:01:50 +0200 |
| commit | 121c58bed01a45043381ce52b8556e851dbaa123 (patch) | |
| tree | 4f77c5ca28c58d7c6330a8b0a30b33c5b3d94a77 /tools | |
| parent | ef347a340b1a8507c22ee3cf981cd5cd64188431 (diff) | |
| download | linux-121c58bed01a45043381ce52b8556e851dbaa123.tar.bz2 | |
tools: bpftool: deal with options upfront
Remove options (in getopt() sense, i.e. starting with a dash like
-n or --NAME) while parsing arguments for bash completions. This
allows us to refer to position-dependent parameters better, and
complete options at any point.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/bpf/bpftool/bash-completion/bpftool | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/tools/bpf/bpftool/bash-completion/bpftool b/tools/bpf/bpftool/bash-completion/bpftool index b0b8022d3570..fffd76f4998b 100644 --- a/tools/bpf/bpftool/bash-completion/bpftool +++ b/tools/bpf/bpftool/bash-completion/bpftool @@ -153,6 +153,13 @@ _bpftool() local cur prev words objword _init_completion || return + # Deal with options + if [[ ${words[cword]} == -* ]]; then + local c='--version --json --pretty --bpffs' + COMPREPLY=( $( compgen -W "$c" -- "$cur" ) ) + return 0 + fi + # Deal with simplest keywords case $prev in help|hex|opcodes|visual) @@ -172,20 +179,23 @@ _bpftool() ;; esac - # Search for object and command - local object command cmdword - for (( cmdword=1; cmdword < ${#words[@]}-1; cmdword++ )); do - [[ -n $object ]] && command=${words[cmdword]} && break - [[ ${words[cmdword]} != -* ]] && object=${words[cmdword]} + # Remove all options so completions don't have to deal with them. + local i + for (( i=1; i < ${#words[@]}; )); do + if [[ ${words[i]::1} == - ]]; then + words=( "${words[@]:0:i}" "${words[@]:i+1}" ) + [[ $i -le $cword ]] && cword=$(( cword - 1 )) + else + i=$(( ++i )) + fi done + cur=${words[cword]} + prev=${words[cword - 1]} - if [[ -z $object ]]; then + local object=${words[1]} command=${words[2]} + + if [[ -z $object || $cword -eq 1 ]]; then case $cur in - -*) - local c='--version --json --pretty --bpffs' - COMPREPLY=( $( compgen -W "$c" -- "$cur" ) ) - return 0 - ;; *) COMPREPLY=( $( compgen -W "$( bpftool help 2>&1 | \ command sed \ |