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#
# Keyringer bash completion
#

_keyringer() {
  # Standard stuff
  local cur prev opts config
  COMPREPLY=()
  cur="${COMP_WORDS[COMP_CWORD]}"
  prev="${COMP_WORDS[COMP_CWORD-1]}"

  # Initial options
  config="$HOME/.keyringer"
  opts="`ls $config | sed -e 's/config//'`"

  # Available instances
  instances="`echo $opts | sed -e 's/ /|/'`"

  # The current instance
  instance="${COMP_WORDS[1]}"

  # Command completions
  if [ "${#COMP_WORDS[@]}" == "3" ] && echo "${prev}" | grep -qe "[$instances]"; then
    opts="`keyringer $instance commands`"
  elif [ "${#COMP_WORDS[@]}" == "4" ]; then
    # Process config
    source $config/config
    path="`eval echo '$'$instance`"

    case "${prev}" in
      options|preferences)
        opts="ls edit add"
        ;;
      recipients)
        opts="ls edit"
        ;;
      ls|encrypt|encrypt-batch|decrypt|edit|append|append-batch|del)
        opts="$(bash -c "set -f && keyringer $instance ls -p -d ${cur}*" 2> /dev/null)"
        ;;
      *)
        ;;
    esac
  fi

  # Avoid annoying bell and extra tab
  bind 'set show-all-if-ambiguous on'

  # Return the available options
  COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
  [[ $COMPREPLY == */ ]] && compopt -o nospace
  return 0
}

complete -F _keyringer keyringer