wireguard-tools/src/completion/wg-quick.bash-completion

# Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.

_wg_quick_completion() {
	local i a
	if [[ $COMP_CWORD -eq 1 ]]; then
		COMPREPLY+=( $(compgen -W "up down" -- "${COMP_WORDS[1]}") )
		return
	elif [[ $COMP_CWORD -eq 2 ]]; then
		local old_glob="$(shopt -p nullglob)"
		shopt -s nullglob
		for i in /etc/wireguard/*.conf; do
			i="${i##*/}"; i="${i%.conf}"
			mapfile -t a < <(compgen -W "$i" -- "${COMP_WORDS[2]}")
			COMPREPLY+=( "${a[@]}" )
		done
		eval "$old_glob"
		mapfile -t a < <(compgen -f -X '!*.conf' -- "${COMP_WORDS[2]}")
		COMPREPLY+=( "${a[@]}" )
		mapfile -t a < <(compgen -d -- "${COMP_WORDS[2]}")
		COMPREPLY+=( "${a[@]}" )
	fi
}

complete -o filenames -o nosort -F _wg_quick_completion wg-quick