massivetag

#!/bin/sh

# Give a directory as an argument and tag all your music files inside that
# directory. It will only prompt you once for the album, author and year.

dir="$1"
[ ! -d "$dir" ] && { echo "Please add a directory to tag." && exit 1 ;}

cd "$dir" || { echo "Error: $dir Not found" && exit 2 ;}

echo "Enter the album title:"; read -r album
echo "Enter the artist:"; read -r author
echo "Enter the publication year:"; read -r year

# datag 1file 2album 3title 4author 5year 6totaltracks
datag() {
	tags="ALBUM=$2\nTITLE=$3\nARTIST=$4\nDATE=$5\nTOTALTRACKS=$6"
	case "$1" in
		*.ogg)	echo "$tags" | vorbiscomment -w "$1" ;;
		*.opus)	echo "$tags" | opustags -i --set-all "$1" ;;
		*.mp3)	eyeD3 -Q --remove-all -a "$4" -A "$2" -t "$3" -N "$6" -Y "$5" "$1" ;;
		*.flac)	metaflac --remove-all-tags --set-tag="$tags" "$1" ;;
		*) echo "\n\tFile type '${1%.*}' not implemented yet on '$1', skipping..." ;;
	esac
}

# When downloading, the name gets mess up
sanename() { iconv -cf UTF-8 -t ASCII//TRANSLIT | tr -d '[:punct:]' | tr ' ' '_' | sed "s/-\+/-/g;s/\(^-\|-\$\)//g" ;}

# Make a list of the songs to read to
all="$(find . -maxdepth 1 -type f -printf "%f\n")"
totaltracks="$(echo "$all" | wc -l)"

printf "\nTagging ...\n"

echo "$all" | while IFS= read -r song
do
	printf " %s" "$song"
	title="${song%.*}"	# no ext name
	datag "$song" "$album" "$title" "$author" "$year" "$totaltracks" || echo "failed tagging $song"
	printf "\tdone...\n"
done

# Make the album name the directory name (if it isn't the same already)
titldir="$(echo "$album" | sanename)"
[ ! "$dir" = "$titldir" ] && { cd .. && mv --interactive --verbose "$1" "$titldir" ;}