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# cluset bash completion
#
# to install in /usr/share/bash-completion/completions/ or ~/.local/share/bash-completion/completions/
_cluset()
{
# shellcheck disable=SC2034 # set/used by _init_completion
local cur prev words cword split
local word options="" skip=argv0 groupsource="" cleangroup=""
_init_completion -s -n : || return
# stop parsing if there had been any non-option before (or --)
for word in "${words[@]}"; do
case "$skip" in
"") ;;
groupsource)
groupsource="$word"
;& # fallthrough
*)
skip=""
continue
;;
esac
case "$word" in
"") ;;
--) return;;
# no-arg options
--version|-h|--help|-n|--nostdin|-a|--all|-q|--quiet|\
-v|--verbose|-d|--debug) ;;
# get source separately...
--groupsource=*) groupsource="${word#*=}";;
-s|--groupsource) skip=groupsource;;
# assume all the rest as options...
# options with = included in word
--*=*) ;;
-*) skip=any;;
*) return;; # was non-option
esac
done
case "$prev" in
-c|--count|-e|--expand|-f|--fold|\
-x|--exclude|-i|--intersection|-X|--xor)
case "$cur" in
*:*)
groupsource="${cur%%:*}"
groupsource="${groupsource#@}"
;;
*)
if [ -n "$groupsource" ]; then
cleangroup=1
fi
;;
esac
options="$(cluset ${groupsource:+-s "$groupsource"} --completion @*)"
if [ -n "$cleangroup" ]; then
options=${options//@"$groupsource":/@}
fi
;;
-s|--groupsource)
options=$(cluset --groupsources --quiet)
;;
# no-arg options
--version|-h|--help|-l|--list|-L|--list-all|-r|--regroup|\
--list-sources|--groupsources|-d|--debug|-q|--quiet|\
-R|--rangeset|-G|--groupbase|--contiguous) ;;
# any other option: just ignore.
-*)
return;;
esac
# get all options from help text... not 100% accurate but good enough.
[ -n "$options" ] || options="$(cluset --help | grep -oP -- '(?<=[ \t])(-[a-z]|--[^= \t]*)')"
# append space for everything that doesn't end in `:` (likely a groupsource)
mapfile -t COMPREPLY < <(compgen -W "$options" -- "$cur" | sed -e 's/[^:]$/& /')
# remove the prefix from COMPREPLY if $cur contains colons and
# COMP_WORDBREAKS splits on colons...
__ltrim_colon_completions "$cur"
} && complete -o nospace -F _cluset ${BASH_SOURCE##*/}
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