util-linux/bash-completion/swapon
Boris Egorov b5b80e5a6d bash-completion: handle comma-separated options
This solution can become messy when you have too many options listed,
because it repeats all of them. For example, after invoking completion
with this input:

    $ partx --output END,SECTORS,SCHEME,START,

You got these completions:

    END,SECTORS,SCHEME,START,FLAGS,  END,SECTORS,SCHEME,START,NR,
    END,SECTORS,SCHEME,START,TYPE,
    END,SECTORS,SCHEME,START,NAME,   END,SECTORS,SCHEME,START,SIZE,
    END,SECTORS,SCHEME,START,UUID,

Nevertheless, it works even with numbers (listed options properly
excluded from completion). Try to invoke completion after
'chcpu --disable ' or 'lsblk --exclude ' to see it in action.

Few issues remained:

    * completion interrupts after encountering ':' in listed option,
    like in 'MAJ:MIN' in lsblk, losetup.
    * lscpu completion is broken: it inserts space after '--extended',
    but lscpu assumes there is no space after this option. It also
    doesn't complete '--parse' option.
    * some completion options are outdated (for example, lscpu MMHZ). We
    need to sync them with code. Fix for lscpu follows.

Signed-off-by: Boris Egorov <egorov@linux.com>
2015-06-08 12:09:48 +02:00

68 lines
1.5 KiB
Text

_swapon_module()
{
local cur prev OPTS
COMPREPLY=()
cur="${COMP_WORDS[COMP_CWORD]}"
prev="${COMP_WORDS[COMP_CWORD-1]}"
case $prev in
'-p'|'--priority')
# Priority range is -1 to 32767. Perhaps these
# few are enough.
COMPREPLY=( $(compgen -W "{-1..9} 32767" -- $cur) )
return 0
;;
'--show')
local prefix realcur OUTPUT_ALL OUTPUT
realcur="${cur##*,}"
prefix="${cur%$realcur}"
OUTPUT_ALL="NAME TYPE SIZE USED PRIO UUID LABEL"
for WORD in $OUTPUT_ALL; do
if ! [[ $prefix == *"$WORD"* ]]; then
OUTPUT="$WORD $OUTPUT"
fi
done
compopt -o nospace
COMPREPLY=( $(compgen -P "$prefix" -W "$OUTPUT" -S ',' -- $realcur) )
return 0
;;
'-U')
local UUIDS
UUIDS="$(lsblk -nrp -o FSTYPE,UUID | awk '$1 ~ /swap/ { print $2 }')"
COMPREPLY=( $(compgen -W "$UUIDS" -- $cur) )
return 0
;;
'-L')
local LABELS
LABELS="$(lsblk -nrp -o FSTYPE,LABEL | awk '$1 ~ /swap/ { print $2 }')"
COMPREPLY=( $(compgen -W "$LABELS" -- $cur) )
return 0
;;
'-h'|'--help'|'-V'|'--version')
return 0
;;
esac
case $cur in
-*)
OPTS="--all
--discard
--ifexists
--fixpgsz
--priority
--summary
--show
--noheadings
--raw
--bytes
--verbose
--help
--version"
COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
return 0
;;
esac
local DEVS
DEVS="$(lsblk -nrp -o FSTYPE,NAME | awk '$1 ~ /swap/ { print $2 }')"
COMPREPLY=( $(compgen -W "$DEVS" -- $cur) )
return 0
}
complete -F _swapon_module swapon