#!/bin/sh

## live-build(7) - System Build Scripts
## Copyright (C) 2006-2011 Daniel Baumann <daniel@debian.org>
##
## live-build comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
## This is free software, and you are welcome to redistribute it
## under certain conditions; see COPYING for details.


#set -e

Init ()
{
	if [ -e /etc/live/build-cron.conf ]
	then
		. /etc/live/build-cron.conf
	fi

	if ls /etc/live/build-cron.d/* > /dev/null 2>&1
	then
		for _FILE in /etc/live/build-cron.d/*
		do
			. ${_FILE}
		done
	fi

	if [ "${LIVE_BUILD_CRON_IMAGES}" != "true" ]
	then
		exit 0
	fi

	if [ -z "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}" ]
	then
		exit 1
	fi

	# FIXME: don't hardcode
	BUILDS="daily"
	DATE="$(date +%Y%m%d)"

	ARCHITECTURE="$(dpkg --print-architecture)"
	eval DISTRIBUTIONS="$`echo LIVE_BUILD_CRON_IMAGES_$(echo ${BUILDS} | tr [a-z] [A-Z])_DISTRIBUTIONS`"
	eval FLAVOURS="$`echo LIVE_BUILD_CRON_IMAGES_$(echo ${BUILDS} | tr [a-z] [A-Z])_FLAVOURS`"
}

Setup ()
{
	_TMPDIR="$(mktemp -d -t live-build-cron-images.XXXXXXXX)"

	case "${LIVE_BUILD_CRON_IMAGES_BUILD}" in
		git)
			cd "${_TMPDIR}"
			git clone git://live.debian.net/git/live-build.git
			git checkout debian-old-2.0

			LB_BASE="${_TMPDIR}/live-build"
			export LB_BASE

			PATH="${PATH}:${_TMPDIR}/live-build/scripts/build"
			export PATH
			;;

		release)
			# live-build
			if [ -n "${LIVE_BUILD}" ]
			then
				if [ -x "$(which dget 2>/dev/null)" ]
				then
					dget "http://live.debian.net/archive/packages/live-build/${LIVE_BUILD}/live-build_${LIVE_BUILD}.dsc"
					dpkg-source -x live-build_${LIVE_BUILD}.dsc

					LB_BASE="${_TMPDIR}/live-build-$(echo ${LIVE_BUILD} | awk -F- '{ print $1 }')"
					export LB_BASE

					PATH="${PATH}:${_TMPDIR}/live-build-$(echo ${LIVE_BUILD} | awk -F- '{ print $1 }')/scripts/build"
					export PATH
				else
					echo "E: dget - command not found"
					echo "I: dget can be optained from: "
					echo "I:   http://git.debian.org/?p=devscripts/devscripts.git"
					echo "I: On Debian based systems, dget can be installed with:"
					echo "I:   apt-get install devscripts"

					exit 1
				fi
			fi
			;;
	esac

	mkdir -p "${_TMPDIR}/build"
	cd "${_TMPDIR}/build"

	# live-boot
	if [ -n "${LIVE_BOOT}" ]
	then
		mkdir -p config/chroot_local-packages
		cd config/chroot_local-packages

		wget -c "http://live.debian.net/archive/packages/live-boot/${LIVE_BOOT}/live-boot_${LIVE_BOOT}.dsc"
		wget -c "http://live.debian.net/archive/packages/live-boot/${LIVE_BOOT}/live-boot_${LIVE_BOOT}.diff.gz"
		wget -c "http://live.debian.net/archive/packages/live-boot/${LIVE_BOOT}/live-boot_$(echo ${LIVE_BOOT} | awk -F- '{ print $1 }').orig.tar.gz"
		wget -c "http://live.debian.net/archive/packages/live-boot/${LIVE_BOOT}/live-boot_${LIVE_BOOT}_all.deb"
		wget -c "http://live.debian.net/archive/packages/live-boot/${LIVE_BOOT}/live-boot-initramfs-tools_${LIVE_BOOT}_all.deb"
		wget -c "http://live.debian.net/archive/packages/live-boot/${LIVE_BOOT}/live-initramfs_${LIVE_BOOT}_all.deb"

		cd "${OLDPWD}"
	fi

	# live-config
	if [ -n "${LIVE_CONFIG}" ]
	then
		mkdir -p config/chroot_local-packages
		cd config/chroot_local-packages

		wget -c "http://live.debian.net/archive/packages/live-config/${LIVE_CONFIG}/live-config_${LIVE_CONFIG}.dsc"
		wget -c "http://live.debian.net/archive/packages/live-config/${LIVE_CONFIG}/live-config_${LIVE_CONFIG}.diff.gz"
		wget -c "http://live.debian.net/archive/packages/live-config/${LIVE_CONFIG}/live-config_$(echo ${LIVE_CONFIG} | awk -F- '{ print $1 }').orig.tar.gz"
		wget -c "http://live.debian.net/archive/packages/live-config/${LIVE_CONFIG}/live-config_${LIVE_CONFIG}_all.deb"
		wget -c "http://live.debian.net/archive/packages/live-config/${LIVE_CONFIG}/live-config-sysvinit_${LIVE_CONFIG}_all.deb"

		cd "${OLDPWD}"
	fi

	# live-installer
	if [ -n "${LIVE_INSTALLER}" ]
	then
		mkdir -p config/binary_local-udebs
		cd config/binary_local-udebs

		wget -c "http://ftp.debian.org/debian/pool/main/l/live-installer/live-installer_${LIVE_INSTALLER}.dsc"
		wget -c "http://ftp.debian.org/debian/pool/main/l/live-installer/live-installer_${LIVE_INSTALLER}.tar.gz"
		wget -c "http://ftp.debian.org/debian/pool/main/l/live-installer/live-installer_${LIVE_INSTALLER}_${ARCHITECTURE}.udeb"

		cd "${OLDPWD}"
	fi

	# debian-installer-launcher
	if [ -n "${DI_LAUNCHER}" ]
	then
		mkdir -p config/chroot_local-packages
		cd config/chroot_local-packages

		wget -c "http://ftp.debian.org/debian/pool/main/d/debian-installer-launcher/debian-installer-launcher_${DI_LAUNCHER}.dsc"
		wget -c "http://ftp.debian.org/debian/pool/main/d/debian-installer-launcher/debian-installer-launcher_${DI_LAUNCHER}.tar.gz"
		wget -c "http://ftp.debian.org/debian/pool/main/d/debian-installer-launcher/debian-installer-launcher_${DI_LAUNCHER}_all.deb"

		cd "${OLDPWD}"
	fi
}

Build ()
{
	cd "${_TMPDIR}/build"

	for DISTRIBUTION in ${DISTRIBUTIONS}
	do
		rm -rf cache/stages*

		for FLAVOUR in ${FLAVOURS}
		do
			if [ -e .stage ]
			then
				lb clean
			fi

			rm -rf cache/stages_rootfs
			rm -f config/* || true

			LB_VERSION="$(lb --version | awk '/^live-build, version / { print $3 }')"

			case "${LB_VERSION}" in
				2.0*)
					_PACKAGE_LISTS="--packages-lists ${FLAVOUR}"
					;;

				3.0*)
					_PACKAGE_LISTS="--package-lists ${FLAVOUR}"
					;;
			esac

			# FIXME: cdebootstrap
			lb config --clean \
				--bootstrap cdebootstrap \
				--cache-stages "bootstrap rootfs" \
				--debian-installer ${DEBIAN_INSTALLER} \
				--debian-installer-distribution ${DEBIAN_INSTALLER_DISTRIBUTION} \
				--distribution ${DISTRIBUTION} \
				--mirror-bootstrap ${MIRROR_BOOTSTRAP} \
				--mirror-chroot ${MIRROR_CHROOT} \
				--mirror-chroot-security ${MIRROR_CHROOT_SECURITY} \
				${_PACKAGE_LISTS}

			lb build 2>&1 | tee debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.iso.log

			mv binary*.iso debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.iso
			mv binary.list debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.iso.list
			mv binary.packages debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.iso.packages

			if [ "${ARCHITECTURE}" != "powerpc" ]
			then
				lb clean --binary
				lb config --clean --binary-images usb-hdd
				lb binary 2>&1 | tee debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.img.log

				mv binary.img debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.img
				mv binary.list debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.img.list
				mv binary.packages debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.img.packages
			fi

			if [ "${ARCHITECTURE}" != "powerpc" ]
			then
				lb clean
				rm -rf cache/stages_rootfs
				lb config --clean --binary-images net

				lb build 2>&1 | tee debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.tar.gz.log

				mv binary-net.tar.gz debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.tar.gz
				mv binary.list debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.tar.gz.list
				mv binary.packages debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.tar.gz.packages

				mv binary/*/filesystem.squashfs debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.squashfs
				for memtest in tftpboot/debian-live/${ARCHITECTURE}/memtest*; do cp -f ${memtest} debian-live-${DISTRIBUTION}-${ARCHITECTURE}.$(basename ${memtest}); done || true
				for kernel in tftpboot/debian-live/${ARCHITECTURE}/vmlinuz*; do cp -f ${kernel} debian-live-${DISTRIBUTION}-${ARCHITECTURE}.$(basename ${kernel}); done
				for initrd in tftpboot/debian-live/${ARCHITECTURE}/initrd*; do cp ${initrd} debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.$(basename ${initrd}); done
				cp debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.tar.gz.packages debian-live-${DISTRIBUTION}-${ARCHITECTURE}-${FLAVOUR}.packages
			fi

			if [ "${LIVE_BUILD_CRON_IMAGES_SOURCE}" = "true" ]
			then
				lb config --clean --source true

				lb source 2>&1 | tee debian-live-${DISTRIBUTION}-source-${FLAVOUR}.log

				mv source.debian.tar.gz debian-live-${DISTRIBUTION}-source-${FLAVOUR}.debian.tar.gz
				mv source.debian.list debian-live-${DISTRIBUTION}-source-${FLAVOUR}.debian.tar.gz.list
				mv source.debian-live.tar.gz debian-live-${DISTRIBUTION}-source-${FLAVOUR}.debian-live.tar.gz
				mv source.debian-live.list debian-live-${DISTRIBUTION}-source-${FLAVOUR}.debian-live.tar.gz.list
			fi
		done
	done
}

Install ()
{
	BUILD="1"

	while [ -e "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}" ]
	do
		BUILD="$((${BUILD} + 1))"
	done

	cd "${_TMPDIR}/build"

	# Move iso images
	if ls debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.iso* > /dev/null 2>&1
	then
		mkdir -p "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/iso-hybrid"
		mv debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.iso* "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/iso-hybrid"
	fi

	# Move hdd images
	if ls debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.img > /dev/null 2>&1
	then
		mkdir -p "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/usb-hdd"
		mv debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.img* "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/usb-hdd"
	fi

	# Move net images
	if ls debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.tar.gz* > /dev/null 2>&1
	then
		mkdir -p "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/net"
		mv debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.tar.gz* "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/net"
	fi

	# Move web images
	if ls debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.squashfs > /dev/null 2>&1
	then
		mkdir -p "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/web"
		mv debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.squashfs "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/web"
		mv debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.packages* "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/web"
		mv debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.vmlinuz* "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/web"
		mv debian-live-${DISTRIBUTION}-${ARCHITECTURE}-*.initrd.img* "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}/web"
	fi

	# Move source images
	if ls debian-live-${DISTRIBUTION}-source-* > /dev/null 2>&1 && \
	   [ ! -d "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/source" ]
	then
		mkdir -p "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/source/tar"
		mv debian-live-${DISTRIBUTION}-source-*  "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/source/tar"
	fi

	for DIR in "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/${ARCHITECTURE}"/*  "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/${DATE}-${BUILD}/source"/*
	do
		cd "${DIR}"

		md5sum debian* > MD5SUMS
		sha1sum debian* > SHA1SUMS
		sha256sum debian* > SHA256SUMS
	done

	rm -f "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}/current"

	cd "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${DISTRIBUTION}"
	ln -s ${DATE}-${BUILD} current
}

Clean ()
{
	cd "${_TMPDIR}/build"
	lb clean --purge

	cd "${CURDIR}"
	rm -rf "${_TMPDIR}"
}

Trace ()
{

cat > "${LIVE_BUILD_CRON_IMAGES_DIRECTORY}/${BUILDS}-builds/${BUILDS}-trace" << EOF
${DATE}-${BUILD}
$(LC_ALL=C date -R)
EOF

}

Main ()
{
	Init
	Setup

	Build
	Install
	Clean

	Trace
}

Main