Print game ID of wii/gamecube file and download game cover artwork

getID.sh

#!/bin/sh
# this script will print internal game name and ID to the screen for gamecube/wii games and download artwork

ARTWORK_DIR=~/storage/ROMs/artwork

function die()
{
	rm /tmp/game{Name,ID,WBFS} &> /dev/null
	echo $1
	exit $2
}

FILE="$1"
ARTWORK="$2"

if [ -z "$FILE" ]; then
	echo "USAGE: `basename $0` FILE.[wbfs/iso]"
	exit 1
fi

if [ ! -f "$FILE" ]; then
	die "File not found." 1
fi

isISO=`echo $FILE | grep -i "iso$"`
isWBFS=`echo $FILE | grep -i "wbfs$"`

if [ -z "$isISO" ] && [ -z "$isWBFS" ]; then
	die "$FILE is not an ISO/WBFS file!" 1
fi

# ISO ID is the first 6 bytes, name starts at byte 32
# WBFS ID is 6 bytes starting at byte 512, name starts at byte 544

if [ -n "$isISO" ]; then
	dd if="$FILE" of=/tmp/gameID count=6 bs=1 &> /dev/null
	dd if="$FILE" of=/tmp/gameName skip=32 bs=1 count=100 &> /dev/null
elif [ -n "$isWBFS" ]; then
	# check the file header
	dd if="$FILE" of=/tmp/gameWBFS bs=1 count=4 &>/dev/null
	HEADER=`cat /tmp/gameWBFS`
	[ "$HEADER" != "WBFS" ] && die "Invalid WBFS file." 1

	dd if="$FILE" of=/tmp/gameID skip=512 count=6 bs=1 &>/dev/null
	dd if="$FILE" of=/tmp/gameName skip=544 bs=1 count=100 &>/dev/null
fi

ID=`cat /tmp/gameID`
REMOTEID=$ID
NAME=`cat /tmp/gameName`

if [ -z "$ID" ] && [ -z "$NAME" ]; then
	die "Name/ID not found. Are you sure this is a Wii/Gamecube file?" 1
else
	if [ -n "$ARTWORK" ]; then
		# download the artwork from gametdb if we dont already have it
		if [ ! -f "$ARTWORK_DIR/$ID.png" ]; then
			REMOTEID=`echo $ID | sed -r 's/([A-Z0-9]{3})P([0-9A-Z]{2})/\1E\2/'` # I don't want PAL artwork 
			echo "Downloading artwork [$REMOTEID]..."
			wget -O $ARTWORK_DIR/$ID.png --quiet http://art.gametdb.com/wii/cover3D/US/$REMOTEID.png
			if [ $? -ne 0 ]; then
				echo "Artwork download for $NAME [$REMOTEID] failed. NTSC ID cannot be translated to PAL ID"
				rm $ARTWORK_DIR/$ID.png
			fi
		fi
	fi	
	die "$NAME [$ID]" 0
fi