tiny mp3 tagger based on id3v2 and a sane file layout. Now with arbitrary genre support!

retag

#!/bin/sh
ALBUM=$(basename "`pwd`")
ARTIST=$(basename "$(dirname "`pwd`")")
TOT=$( ls -1 | grep \.mp3 | wc -l )
printf "Tagging %d track in pwd as %s / %s\n" "$TOT" "$ARTIST" "$ALBUM"
printf "Pick a genre: (enter to list, the genre id, or '255' to specify string) "
read GENRE
if [ "x${GENRE}" = "x" ]; then
    id3v2 -L | less
    read GENRE
elif [ "${GENRE}" -eq 255 ]; then
    printf "Genre string: "
    read GENRE_STRING
fi
for song in *.mp3; do
    num=$(printf "$song" | sed -r 's/([0-9]{2}).+$/\1/')
    title=$(printf "$song" | sed -r 's/[0-9]{2} |\.mp3//g')
    if [ -z "$GENRE_STRING" ]; then
        echo id3v2 -a "$ARTIST" -A  "$ALBUM" -t "$title" -T "$num/$TOT" -g "$GENRE" "$song"
        id3v2 -a "$ARTIST" -A  "$ALBUM" -t "$title" -T "$num/$TOT" -g "$GENRE" "$song"
    else
        echo id3v2 -a "$ARTIST" -A  "$ALBUM" -t "$title" -T "$num/$TOT" --TCON "$GENRE_STRING" "$song"
        id3v2 -a "$ARTIST" -A  "$ALBUM" -t "$title" -T "$num/$TOT" --TCON "$GENRE_STRING" "$song"
    fi
done
if which mpc > /dev/null 2>&1; then
    mpc update
fi
if [ ! -f cover.jpg ]; then
    url="http://www.albumart.org/index.php?skey=$(printf "$ALBUM"| sed 's/ /+/g')&itempage=1&newsearch=1&searchindex=Music"
    printf "Fetching cover...\n"
    curl -# "$(curl -s "$url" | awk -F 'src=' '/zoom-icon.jpg/ {print $2}' | cut -d '"' -f 2 | head -n1)" > cover.jpg
fi