functions

# shared functions

function _getinfo {
	id=`awk -F= '/DISTRIB_ID/ {print $2}' "$fsys/etc/lsb-release"`
	release=`cut -d' ' -f2 $iso/.disk/info`
	codename=`awk -F= '/DISTRIB_CODENAME/ {print $2}' "$fsys/etc/lsb-release"`
	arch=`sed 's/.*Release \(.*\) (.*/\1/' $iso/.disk/info`
	codefname=`cut -d'"' -f2 $iso/.disk/info`
}

function argpass {
	if [ $# -gt 1 ]; then
		echo $@ | cut -d' ' -f1 --complement;
	fi
}

function _crop {
	len=${#str}
	ptr=$(($len-40))
	if [ $ptr -gt 0 ]; then
		echo -e "...${str:ptr:len}"
	else
		echo -e $str
	fi
}

function _unmountISO { # error control for abnormal termination
	for i in  `sed -n 's/.*loop0 \(.*\) iso.*/\1/p' /proc/mounts`; do
		if [ $i = $mnt ]; then
			echo -en "${h2}Unmount ISO from${cdef} "; str=$i; _crop
			umount -lf "$i"
			if [ $? != 0 ]; then
				echo -e "${error}Unable to unmount $i. Try it manually${cdef}"
				exit
			fi
			rmdir $mnt
		fi
	done
}

function _clean {
	_unmountISO
	echo -e "${h2}cleaning up${cdef}"
		rm -rf "$wd/custom"
}