#!/bin/sh
#
# $NetBSD: maketars,v 1.96 2023/06/10 16:08:41 lukem Exp $
#
# Make release tar files for some or all lists.  Usage:
# maketars [-b] [-x] [-i installdir] [-a arch] [-m machine] [-s setsdir]
#	[-M metalog] [-N etcdir] [-F setlistsdir] [-d destdir]
#	[-t tardir] [-U] [setname ...]
#
# The default sets are "base comp debug dtb etc games gpufw man misc rescue tests text"
# The X sets are "xbase xcomp xdebug xetc xfont xserver"
#
# If '-i installdir' is given, copy the given sets to installdir
# (using pax -rw ...) instead of creating tar files.
# In this case, remove "etc", and "xetc" from the list of default sets.
#

prog="${0##*/}"
rundir="$(dirname "$0")" # ${0%/*} isn't good enough when there's no "/"
. "${rundir}/sets.subr"

# set defaults
lists=
tars="${RELEASEDIR}"
dest="${DESTDIR}"
metalog=
installdir=
etcdir=
setlistdir=
timestamp=
setfilesonly=false
quiet=false
preserve="-pe"

# mtree(8) keys to skip (exclude) in the generated /etc/mtree/sets.* files.
# Note: sets contain sha256 so that keyword is not listed here.
skipkeys=cksum,md5,rmd160,sha1,sha384,sha512,time

usage()
{
	cat 1>&2 <<USAGE
Usage: ${prog} [-L base,x] [-b] [-x] [-i idir] [-a arch] [-m machine]
	    [-s setsdir] [-S] [-M metalog] [-N etcdir] [-F setlistdir]
	    [-d dest] [-t targetdir] [setname ...]
	-L base,x	Make specified lists
	-b		Make both netbsd and x11 lists
	-x		Only make x11 lists
		[Default: make netbsd lists]
	-i idir		Install sets to idir instead of creating tar files
	-a arch		Set arch (e.g, m68k, mipseb, mipsel, powerpc) [${MACHINE_ARCH}]
	-m machine	Set machine (e.g, amiga, i386, macppc) [${MACHINE}]
	-q		Quiet operation
	-s setsdir	Directory to find sets [${setsdir}]
	-F setlistdir	output directory for generated set lists [${dest}/etc/mtree/]
	-S		Exit after creating set files ${dest}/etc/mtree/set.*
	-M metalog	metalog file
	-N etcdir	etc dir for metalog use [${dest}/etc]
	-U		do not preserve file permissions (with -i ..)
	-d dest		\${DESTDIR}	[${dest}]
	-t targetdir	\${RELEASEDIR}	[${tars}]
	-T timestamp	Timestamp to set for all the files in the tar.
	[setname ...]	Sets to build 	[${lists}]
USAGE
	exit 1
}

msg()
{
	$quiet || echo $*
}

# handle args
while getopts L:bxi:a:m:qs:F:SM:N:Ud:t:T: ch; do
	case ${ch} in
	L)
		save_IFS="${IFS}"
		IFS=,
		for _list in ${OPTARG}; do
			case $_list in
			base)	lists="${lists} ${nlists}" ;;
			x)	lists="${lists} ${xlists}" ;;
			esac
		done
		IFS="${save_IFS}"
		;;
	# backward compat
	b)
		lists="${nlists} ${xlists}"
		;;
	x)
		lists="${xlists}"
		;;
	i)
		installdir="${OPTARG}"
		;;
	a)
		MACHINE_ARCH="${OPTARG}"
		MACHINE_CPU="$(arch_to_cpu "${OPTARG}")"
		;;
	m)
		MACHINE="${OPTARG}"
		;;
	q)
		quiet=true
		;;
	s)
		setsdir="${OPTARG}"
		;;
	F)
		setlistdir="${OPTARG}"
		;;
	S)
		setfilesonly=true
		;;
	M)
		metalog="${OPTARG}"
		;;
	N)
		etcdir="${OPTARG}"
		;;
	U)
		preserve=
		;;
	d)
		dest="${OPTARG}"
		;;
	t)
		tars="${OPTARG}"
		;;
	T)
		timestamp="--timestamp $OPTARG"
		;;
	*)
		usage
		;;
	esac
done
shift $((${OPTIND} - 1))
if [ -n "${installdir}" ]; then	# if -i, remove etc + xetc from the default list
	lists="$(echo ${lists} | ${SED} -e 's/ etc / /;s/ xetc / /;')"
fi
if [ -n "$*" ]; then
	lists="$*"
fi

if [ -z "${tars}" -a -z "${installdir}" ]; then
	echo >&2 "${prog}: \${RELEASEDIR} must be set, or -i must be used"
	exit 1
fi

if [ -z "${dest}" ]; then
	echo >&2 "${prog}: \${DESTDIR} must be set"
	exit 1
fi
: ${etcdir:="${dest}/etc"}

SDIR="$(${MKTEMP} -d "/tmp/${prog}.XXXXXX")"
TMPFILES=

: ${setlistdir:="${dest}/etc/mtree"}

cleanup()
{
	es=$?
	rm -rf "${SDIR}" ${TMPFILES}
	trap - 0
	exit ${es}
}
trap cleanup 0 2 3 13		# EXIT INT QUIT PIPE

#
# build the setfiles
#

for setname in ${lists}; do
	msg "Creating flist.${setname}"
	${HOST_SH} "${setsdir}/makeflist" -a "${MACHINE_ARCH}" -m "${MACHINE}" \
	    -s "${setsdir}" "${setname}" > "${SDIR}/flist.${setname}" \
	    || exit 1
	if [ ! -s "${SDIR}/flist.${setname}" ]; then
		echo >&2 "makeflist output is empty for ${setname}"
		exit 1
	fi
	msg "Creating set.${setname}"
	if [ -n "${metalog}" ]; then
		${AWK} -f "${rundir}/getdirs.awk" "${SDIR}/flist.${setname}" \
		    > "${SDIR}/flist.${setname}.full" \
		    || exit 1
		(
			echo "/set uname=root gname=wheel"
			${AWK} -f "${rundir}/join.awk" \
				"${SDIR}/flist.${setname}.full" "${metalog}"
			echo "./etc/mtree/set.${setname} type=file mode=0444"
		) | ${MTREE} -CS -k all -R "${skipkeys}" -N "${etcdir}" \
		    > "${setlistdir}/set.${setname}" \
		    || exit 1
		# We deliberately do not add set.${setname} to ${metalog},
		# because we depend on it as an input.
	else
		${MTREE} -c -p "${dest}" -k all -R "${skipkeys}" \
		    -N "${etcdir}" -O "${SDIR}/flist.${setname}" \
		    | ${MTREE} -C -k all -N "${etcdir}" \
		    > "${setlistdir}/set.${setname}"
	fi
done
if ${setfilesonly}; then		# exit after creating the set lists
	exit 0
fi

runpax() {
	local s="$1"
	shift
	(cd "${dest}" && 
	    ${PAX} -dOw ${timestamp} -N"${etcdir}" -M "$@" < "${setlistdir}/set.${s}")
}

#
# now build the tarfiles
#

GZIP=-9n		# for pax -z
export GZIP
es=0

for setname in ${lists:-${nlists}}; do
	out="${setname}.${TAR_SUFF:-tgz}"
	if [ -n "${installdir}" ]; then
		msg "Copying set ${setname}"
		runpax "${setname}" -r ${preserve} "${installdir}"
	else
		if [ -n "${metalog}" -a "${tars}/${out}" -nt "${metalog}" ]
		then
			msg "${out} is up to date"
			continue
		fi
		msg "Creating ${out}"
		rm -f "${tars}/${out}"
		TMPFILES="${TMPFILES} ${tars}/${out}.tmp"
		runpax "${setname}" -z --use-compress-program \
		    ${COMPRESS_PROGRAM} > "${tars}/${out}.tmp" &&
		mv "${tars}/${out}.tmp" "${tars}/${out}"
	fi
	es=$((${es} + $?))
done
if [ ${es} -gt 255 ]; then
	es=255
fi
exit ${es}