#!/bin/sh -e

[ -z "$1" ] && exit 1

DEVICE="$1"
COUNT="$(emacs-media-count-part "$DEVICE")"

if [ "$COUNT" == 0 ]; then
    echo "$DEVICE"
    exit 0
fi

if [ "$COUNT" == 1 ]; then
    emacs-media-part --names-only "$DEVICE" | head -n 1
fi
