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### default variables ###

[ -z "$CDMOUNT" ] && export CDMOUNT="/media/cdrom"

export BG1_5CD_INTL_MD5="138528155dfeb695bd63f90eacee7dc0"
export BG1_TOTSC_3CD_US_MD5="1a6828b97a27967e8c4acc25e1ef48d2"
export BG1_TOTSC_1CD_UK_MD5="e27d259ddc0171ff945dbba136e60309"

export BG2_4CD_US_MD5="8acf4a6348de916bfaf077469a427b65"

export PST_2CD_MD5="640b61443cc86c434f1b6826e63c0e33"
export PST_4CD_MD5="5e8c2075163aca124de4a467fb33063d"

export IWD_2CD_US_MD5=""
export IWD_HOW_1CD_US_MD5=""

export IWD2_2CD_US_MD5=""

# a record of every IE collection I can find.
export IWD_ULTIMATE_COLLECTION_MD5=""
export BG1_1DVD_MD5=""
export BG_COMPLILATION_1DVD_MD5=""
#export BG2_COMPLILATION_NCD_MD5="" # no idea how many cds.
export BLACK_ISLE_COMPILATION_PART_ONE_MD5=""
export BLACK_ISLE_COMPILATION_PART_TWO_MD5=""
export ULTIMATE_DUNGEONS_DRAGONS_MD5=""
export ROLLENSPIELE_DELUXE_EDITION_MD5=""

### functions ###

function checkcd
{
	# usage: checkcd md5sum md5file
	checksum=$(md5sum $2 2>/dev/null|awk '{print $1}')

	if [ "$checksum" != "$1" ]; then
		return 1
	fi

	return 0
}

function getcd
{
	# usage: getcd cdnum [md5sum] [md5file]
	# note we're redirecting to stderr to ensure questions
	# are always shown

	if [ $# -ge 3 ]; then
		answer=""
		while [ $(checkcd $2 $CDMOUNT/$3; echo $?) -ne 0 ]; do
			echo " * Insert CD $1 and press any key, or press 'c' to continue without checking" 1>&2
			read -sn 1 answer
			if [ "$answer" == 'c' ]; then
				return 0
			fi
		done
	else
		echo "* Please insert CD $1 and press any key" 1>&2
		read -sn 1
	fi

	return 0
}

function copycdextras
{
	# usage: copycdextras cdnum
	# essentially a case insensitive cp -R cd#/*
	CDNUMBER=$1

	for filename in $(find $CDMOUNT/[cC][dD]$CDNUMBER/ -type f || die); do
		relativepath=$(echo $filename|gawk -F "$CDMOUNT/[cC][dD]$CDNUMBER" '{print   $2}'|tr A-Z a-z)
		cp $filename "$TARGETDIR"/$relativepath || die
	done
}