create driver disk from specified rpm package

mkdriverdisk.sh

#!/bin/bash

usage() {
	echo "Usage: $(basename $0) [ -o filename.iso ] [driver.rpm ...]"
}

create_disk_template() {
	rv=1

	echo "Driver Update Disk version 3" > $workspace/rhdd3
 
	for i in "$@"
	do
		filetype=$(file -b --mime-type "$i" 2>/dev/null)
		if [ "$filetype" != "application/x-rpm" ] ; then
			continue
		fi

		arch=$(rpm -q -p "$i" --qf "%{ARCH}\n" 2>/dev/null)
		if [ -z "$arch" ] ; then
			continue
		fi

		dest="$workspace/rpms/$arch"

		if [ ! -d "$dest" ]; then
			mkdir -p "$dest"
		fi
		cp -p $i $dest
	done

	for i in $(ls $workspace/rpms 2>/dev/null)
	do
		pushd $workspace/rpms/$i > /dev/null
		$CREATEREPO -p -d ./
		if [ $? -eq 0 ]; then
			rv=0
		fi
		popd > /dev/null
	done

	return $rv
}
 
CREATEREPO=$(which createrepo 2>/dev/null)
if [ -z "$CREATEREPO" ] ; then
	echo "createrepo command is not found!" > /dev/stderr
	echo "you should run \"yum install createrepo\" !" > /dev/stderr
	exit 1
fi

MKISOFS=$(which mkisofs 2>/dev/null)
if [ -z "$MKISOFS" ] ; then
	echo "mkisofs command is not found!" > /dev/stderr
	echo "you should run \"yum install '*/mkisofs'\" !" > /dev/stderr
	exit 1
fi

while getopts 'o:h' args "$@"
do
	case $args in
		o)
			ofile=$OPTARG
			;;
		h|?)
			usage
			exit 1
			;;
	esac
done
shift $(($OPTIND - 1))

ofile=${ofile:-driverdisk_$(date +"%F_%T").iso}

workspace=$(mktemp -t -d $(basename $0).XXXXXX)
 
trap "rm -rf $workspace" exit
 
create_disk_template "$@"
if [ $? -ne 0 ] ; then
	echo "valid rpm file is not found!" > /dev/stderr
	exit 1
fi
 
$MKISOFS -J -r -o $ofile -V "OEMDRV" -input-charset "utf-8" $workspace

if [ $? -ne 0 ] ; then
	echo "create driver disk is failed!" > /dev/stderr 
	exit 1
fi

echo "create driver disk to $ofile is done!" > /dev/stderr