#
# Creates a root filesystem out of IPKs
#
# This rootfs can be mounted via root-nfs or it can be put into an cramfs/jffs etc.
# See image.bbclass for a usage of this.
#

DEPENDS_prepend="ipkg-native ipkg-utils-native fakeroot-native "
DEPENDS_append=" ${EXTRA_IMAGEDEPENDS}"
RDEPENDS += "ipkg ipkg-collateral"

PACKAGES = ""

do_rootfs[nostamp] = "1"
do_rootfs[dirs] = "${TOPDIR}"
do_build[nostamp] = "1"

IPKG_ARGS = "-f ${T}/ipkg.conf -o ${IMAGE_ROOTFS}"

PACKAGE_INSTALL += "ipkg ipkg-collateral"

ROOTFS_POSTPROCESS_COMMAND ?= ""

PID = "${@os.getpid()}"

# some default locales
IMAGE_LINGUAS ?= "de-de fr-fr en-gb"

LINGUAS_INSTALL = "${@" ".join(map(lambda s: "locale-base-%s" % s, bb.data.getVar('IMAGE_LINGUAS', d, 1).split()))}"

real_do_rootfs () {
	set -x
		
	mkdir -p ${IMAGE_ROOTFS}/dev

	#work around a build in ipkg-make-index
	touch ${DEPLOY_DIR_IPK}/Packages

	if [ -z "${DEPLOY_KEEP_PACKAGES}" ]; then
		touch ${DEPLOY_DIR_IPK}/Packages
		ipkg-make-index -r ${DEPLOY_DIR_IPK}/Packages -p ${DEPLOY_DIR_IPK}/Packages -l ${DEPLOY_DIR_IPK}/Packages.filelist -m ${DEPLOY_DIR_IPK}
	fi
	mkdir -p ${T}
	echo "src oe file:${DEPLOY_DIR_IPK}" > ${T}/ipkg.conf
	ipkgarchs="${PACKAGE_ARCHS}"
	priority=1
	for arch in $ipkgarchs; do
		echo "arch $arch $priority" >> ${T}/ipkg.conf
		priority=$(expr $priority + 5)
	done
	ipkg-cl ${IPKG_ARGS} update
	if [ ! -z "${LINGUAS_INSTALL}" ]; then
		ipkg-cl ${IPKG_ARGS} install glibc-localedata-i18n
		for i in ${LINGUAS_INSTALL}; do
			ipkg-cl ${IPKG_ARGS} install $i
		done
	fi
	if [ ! -z "${PACKAGE_INSTALL}" ]; then
		ipkg-cl ${IPKG_ARGS} install ${PACKAGE_INSTALL}
	fi

	export D=${IMAGE_ROOTFS}
	export IPKG_OFFLINE_ROOT=${IMAGE_ROOTFS}
	mkdir -p ${IMAGE_ROOTFS}/etc/ipkg/
	grep "^arch" ${T}/ipkg.conf >${IMAGE_ROOTFS}/etc/ipkg/arch.conf

	for i in ${IMAGE_ROOTFS}${libdir}/ipkg/info/*.preinst; do
		if [ -f $i ] && ! sh $i; then
			ipkg-cl ${IPKG_ARGS} flag unpacked `basename $i .preinst`
		fi
	done
	for i in ${IMAGE_ROOTFS}${libdir}/ipkg/info/*.postinst; do
		if [ -f $i ] && ! sh $i configure; then
			ipkg-cl ${IPKG_ARGS} flag unpacked `basename $i .postinst`
		fi
	done

	install -d ${IMAGE_ROOTFS}/${sysconfdir}
	echo ${BUILDNAME} > ${IMAGE_ROOTFS}/${sysconfdir}/version

	${ROOTFS_POSTPROCESS_COMMAND}
	
	log_check rootfs 	
}

log_check() {
	set +x
	for target in $*
	do
		lf_path="${WORKDIR}/temp/log.do_$target.${PID}"
		
		echo "log_check: Using $lf_path as logfile"
		
		if test -e "$lf_path"
		then
			lf_txt="`cat $lf_path`"
			
			for keyword_die in "Cannot find package" "exit 1" ERR Fail
			do				
				
				if (echo "$lf_txt" | grep -v log_check | grep "$keyword_die") >/dev/null 2>&1
				then
					echo "log_check: There were error messages in the logfile"
					echo -e "log_check: Matched keyword: [$keyword_die]\n"
					echo "$lf_txt" | grep -v log_check | grep -i "$keyword_die" -C1
					echo ""
					do_exit=1				
				fi
			done
			test "$do_exit" = 1 && exit 1						
		else
			echo "Cannot find logfile [$lf_path]"
		fi
		echo "Logfile is clean"		
	done

	set -x
	
}

fakeroot do_rootfs () {
	rm -rf ${IMAGE_ROOTFS}
	real_do_rootfs
}

# set '*' as the rootpassword so the images
# can decide if they want it or not

zap_root_password () {
	sed 's%^root:[^:]*:%root:*:%' < ${IMAGE_ROOTFS}/etc/passwd >${IMAGE_ROOTFS}/etc/passwd.new
	mv ${IMAGE_ROOTFS}/etc/passwd.new ${IMAGE_ROOTFS}/etc/passwd	
} 

create_etc_timestamp() {
	date +%2m%2d%2H%2M%Y >${IMAGE_ROOTFS}/etc/timestamp
}

# Turn any symbolic /sbin/init link into a file
remove_init_link () {
	if [ -h ${IMAGE_ROOTFS}/sbin/init ]; then
		LINKFILE=${IMAGE_ROOTFS}`readlink ${IMAGE_ROOTFS}/sbin/init`
		rm ${IMAGE_ROOTFS}/sbin/init
		cp $LINKFILE ${IMAGE_ROOTFS}/sbin/init
	fi
}

make_zimage_symlink_relative () {
	if [ -L ${IMAGE_ROOTFS}/boot/zImage ]; then
		(cd ${IMAGE_ROOTFS}/boot/ && for i in `ls zImage-* | sort`; do ln -sf $i zImage; done)
	fi
}

# export the zap_root_password, create_etc_timestamp and remote_init_link
EXPORT_FUNCTIONS zap_root_password create_etc_timestamp remove_init_link make_zimage_symlink_relative
 

addtask rootfs before do_build after do_install