rockbox-sync.sh

#!/usr/bin/env bash
# set -o nounset
# set -o errexit
########################################################
## Am I running this on my ZFS server or my Macbook?
if [[ $(uname) == "Darwin" ]]
then
    music_mount_point="/Volumes/tank"
    ipod_mount_point="/Volumes/IPOD"
    transflac_path="$HOME/Documents/GitHub/transflac/transflac"
else
    music_mount_point="/mnt/tank/data"
    ipod_mount_point="/mnt/IPOD"
    transflac_path="/mnt/tank/data/Scripts/transflac/transflac"
fi
if [[ ! -d "$ipod_mount_point" ]]; then exit; fi

## The _Gifts folder contains music given to me by friends. I have not split the albums
## into separate FLAC and MP3 folders like I have for the rest of my library.
declare -A flac_dirs
flac_dirs["${music_mount_point}/Music/albums [FLAC]/"]="${ipod_mount_point}/Music/albums [FLAC_XCODE]/"
flac_dirs["${music_mount_point}/Music/_Gifts/"]="${ipod_mount_point}/Music/_Gifts/"

declare -A mp3_dirs
mp3_dirs["${music_mount_point}/Music/albums [MP3]/"]="${ipod_mount_point}/Music/albums [MP3]/"
mp3_dirs["${music_mount_point}/Music/_Gifts/"]="${ipod_mount_point}/Music/_Gifts/"
########################################################
## TRANSCODE FLAC ALBUMS TO OGG
########################################################
for key in "${!flac_dirs[@]}"
do
    value="${flac_dirs[$key]}"
    "$transflac_path"  "$key" "$value" OGG STANDARD
done
########################################################
## RSYNC MP3 ALBUMS
########################################################
function rsync_mp3()
{
rsync \
    --recursive \
    --times \
    --quiet \
    --prune-empty-dirs \
    --safe-links \
    --modify-window=2 \
    --delete \
    --exclude="*.flac" \
    --filter 'protect *.ogg' \
    --filter 'protect folder.jpg' \
    "$1" \
    "$2"
}

printf '\nSyncing mp3 music to iPod...'
for key in "${!mp3_dirs[@]}"
do
    value="${mp3_dirs[$key]}"
    rsync_mp3 "$key" "$value"
done
printf 'OK\n'
########################################################
## GENERATE M3U PLAYLIST
########################################################
printf '\nCreating updated playlist...'
playlist_file="${ipod_mount_point}/Music/music.m3u"
find \
    "${ipod_mount_point}/Music/" \
    -type f \
    \( -iname "*.mp3" \
    -o -iname "*.ogg" \) \
    -print | sed "s%$ipod_mount_point/Music/%%g" | sort -t / -k 2  > "$playlist_file"
printf 'OK\n'
########################################################