livecd-rootfs/live-build/auto/build

#! /bin/sh
set -e

export LC_ALL=C

(
	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