#! /bin/bash
set -e
set -o pipefail

export LC_ALL=C

. "${LB_BASE:-/usr/share/live/build}"/scripts/build.sh

Arguments "${@}"

Read_conffiles config/all config/common config/bootstrap config/chroot config/binary config/source
Set_defaults

(
	lb bootstrap "$@"
	lb chroot "$@"

	echo "===== Checking size of /usr/share/doc ====="
	echo BEGIN docdirs
	(cd chroot && find usr/share/doc -maxdepth 1 -type d | xargs du -s | sort -nr)
	echo END docdirs

	if which fdupes >/dev/null 2>&1; then
		echo "===== Checking for duplicate files ====="
		echo "first line: <total size for dupes> <different dupes> <all dupes>"
		echo "data lines: <size for dupes> <number of dupes> <file size> <filename> [<filename> ...]"
		echo BEGIN fdupes
		(cd chroot \
		   && fdupes --recurse --noempty --sameline --size --quiet usr \
		   | awk '/bytes each/ {s=$1} /^usr/ { n+=1; n2+=NF-1; sum+=s*(NF-1); print s*(NF-1), NF-1, s, $0 } END {print sum, n, n2}' \
		   | sort -nr
		)
		echo END fdupes
	fi

	lb binary "$@"
) 2>&1 | tee binary.log

# Link output files somewhere BuildLiveCD will be able to find them.
PREFIX="livecd.$PROJECT${SUBARCH:+-$SUBARCH}"

case $LB_INITRAMFS in
	casper)
		INITFS="casper"
		;;

	live-boot)
		INITFS="live"
		;;

	*)
		INITFS="boot"
		;;
esac

for OUTPUT in ext2 ext3 manifest manifest-remove size squashfs; do
	[ -e "binary/$INITFS/filesystem.$OUTPUT" ] || continue
	ln "binary/$INITFS/filesystem.$OUTPUT" "$PREFIX.$OUTPUT"
	chmod 644 "$PREFIX.$OUTPUT"
done

for FLAVOUR in $LB_LINUX_FLAVOURS; do
	KVERS="$( (cd "binary/$INITFS"; ls vmlinu?-*) | sed -n "s/^vmlinu.-\\([^-]*-[^-]*-$FLAVOUR\\)/\\1/p" )"
	if [ -z "$KVERS" ]; then
		echo "No kernel output for $FLAVOUR!" >&2
		exit 1
	fi
	NUMKVERS="$(set -- $KVERS; echo $#)"
	if [ "$NUMKVERS" -gt 1 ]; then
		echo "Cannot handle more than one kernel for $FLAVOUR ($KVERS)!" >&2
		exit 1
	fi
	ln "binary/$INITFS/"vmlinu?-"$KVERS" "$PREFIX.kernel-$FLAVOUR"
	chmod 644 "$PREFIX.kernel-$FLAVOUR"
	if [ -e "binary/$INITFS/initrd.img-$KVERS" ]; then
		ln "binary/$INITFS/initrd.img-$KVERS" "$PREFIX.initrd-$FLAVOUR"
		chmod 644 "$PREFIX.initrd-$FLAVOUR"
	fi
done

NUMFLAVOURS="$(set -- $LB_LINUX_FLAVOURS; echo $#)"
if [ "$NUMFLAVOURS" = 1 ]; then
	# only one kernel flavour
	ln -sf "$PREFIX.kernel-$LB_LINUX_FLAVOURS" "$PREFIX.kernel"
	ln -sf "$PREFIX.initrd-$LB_LINUX_FLAVOURS" "$PREFIX.initrd"
fi

# LTSP chroot building (only in 32bit and for Edubuntu (DVD))
case $PROJECT in
	edubuntu-dvd)
		if [ "$ARCH" = i386 ]; then
			echo "Building LTSP chroot"
			ltsp-build-client --base $(pwd) --mirror $LB_PARENT_MIRROR_BOOTSTRAP --arch $ARCH --dist $LB_PARENT_DISTRIBUTION --chroot ltsp-live --late-packages ldm-edubuntu-theme,plymouth-theme-edubuntu --purge-chroot --skipimage
			mkdir -p images
			mksquashfs ltsp-live images/ltsp-live.img -noF -noD -noI -no-exports -e cdrom
			rm -Rf ltsp-live
			if [ -f images/ltsp-live.img ]; then
				mv images/ltsp-live.img livecd.$PROJECT-ltsp.squashfs
				chmod 0644 livecd.$PROJECT-ltsp.squashfs
				rmdir --ignore-fail-on-non-empty images
			else
				echo "LTSP: Unable to build the chroot, see above for details."
			fi
		fi
		;;
esac