#!/bin/bash
_downgrade() {
  local cur=${COMP_WORDS[COMP_CWORD]} ng_set

  ng_set=$(shopt -p nullglob)
  shopt -s nullglob

  COMPREPLY=($(compgen -W "$(pacman -Ssq "^$cur")" -- $cur))

  $ng_set
}

complete -F _downgrade downgrade
