Download all your songs from your old iPod to your Mac

download-from-ipod-to-mac.sh

#!/usr/bin/env bash

output_dir=~/Downloads/ipod
map_dir="${output_dir}/map"
mkdir -p "${map_dir}" &> /dev/null


if [[ $(uname -s) != "Darwin" ]]; then
  echo "ERROR: this only works for OS X"
  exit 1
fi

if ! command -v ffprobe &> /dev/null; then
  echo "ERROR: ffprobe is not installed"
  echo "  Install ffprobe by running: brew install ffmpeg"
  exit 1
fi


handle_mp3() {
  mp3=${1}

  D2=$(dirname "${mp3}")
  map_name="$(basename "${D2}")-$(basename "${mp3}")"
  full_map_name="${map_dir}/${map_name}"

  if [[ -f ${full_map_name} ]]; then
    echo "Already processed mp3=${mp3}"
    return
  fi

  echo "Handling mp3=${mp3}"

  ffprobe_out=$(ffprobe "${mp3}" 2>&1)

  meta_title=$(echo "${ffprobe_out}"  | grep "title"  | cut -d':' -f2 | sed 's/^ *//g' | sed 's|/|-|g' |head -1)
  meta_track=$(echo "${ffprobe_out}"  | grep "track"  | cut -d':' -f2 | sed 's/^ *//g' | sed 's|/|-|g' |head -1)
  meta_artist=$(echo "${ffprobe_out}" | grep "artist" | cut -d':' -f2 | sed 's/^ *//g' | sed 's|/|-|g' |head -1)
  meta_album=$(echo "${ffprobe_out}"  | grep "album " | cut -d':' -f2 | sed 's/^ *//g' | sed 's|/|-|g' |head -1)

  filename="${meta_artist}/${meta_album}/${meta_track} - ${meta_title}.mp3"
  full_filename="${output_dir}/${filename}"

  album_dir="$(dirname "${full_filename}")"
  if [[ ! -d ${album_dir} ]]; then
    if ! mkdir -pv "${album_dir}"; then
      echo "################ FAILED TO MKDIR [${album_dir}]"
      return
    fi
  fi

  if [[ -f ${full_filename} ]]; then
    echo "################ FILE ALREADY EXISTS [${full_filename}]"
    return
  fi

  echo "cp ${mp3} ${full_filename}"
  if ! cp "${mp3}" "${full_filename}"; then
    echo "################ FAILED TO COPY [${mp3}] [${full_filename}]... retry later"
    return
  fi

  touch "${full_map_name}"
}


handle_ipod_control() {
  dir=${1}

  echo "Handling ipod_control dir=${dir}"

  while IFS= read -r -d '' mp3; do
    handle_mp3 "${mp3}"
  done < <(find "${dir}/Music" -type f -name '*.mp3' -print0)
}


main() {
  while IFS= read -r -d '' dir; do
    handle_ipod_control "${dir}"
  done < <(find /Volumes -type d -iname 'iPod_control' -maxdepth 2 -print0)
}


main