#! /bin/sh
#
#	$NetBSD: makesrctars,v 1.46 2023/11/08 13:02:47 christos Exp $
#
# makesrctars srcdir setdir
#	Create source tarballs in setdir from the source under srcdir.
#

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

# set defaults
xsrcdir=
quiet=false

GZIP=-9n
export GZIP

usage()
{
	cat 1>&2 <<USAGE
Usage: ${prog} [-N password/group dir] [-q] [-x xsrcdir] srcdir setdir
	-N dir		location which contains master.passwd and group files
			(defaults to \${srcdir}/etc)
	-q		quiet operation
	-x xsrcdir	build xsrc.tgz from xsrcdir
	srcdir		location of sources
	setdir		where to write the .tgz files to
USAGE
	exit 1
}

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


umask 022
# handle args
while getopts N:qx: ch; do
	case ${ch} in
	q)
		quiet=true
		;;
	x)
		xsrcdir="${OPTARG}"
		;;
	N)
		PASSWD="${OPTARG}"
		;;
	*)
		usage
		;;
	esac
done
shift $((${OPTIND} - 1))

if [ $# -ne 2 ]; then
	usage
fi
srcdir="$1"
setdir="$2"
: ${PASSWD:="${srcdir}/etc"}

if [ ! -d "${setdir}" ]; then
	echo >&2 "${prog}: ${setdir} is not a directory"
	exit 1
fi

makeset()
{(
	set="${1}.tgz"
	shift
	dir="$1"
	shift
	intmp="/tmp/in$$"
	msg "Creating ${set}"
	if [ "${dir}" != "." ]; then
		cd "${dir}"
		srcprefix="${srcprefix}/${dir}"
	fi
	# Gets rid of any obj dirs and things below it. Also skip
	# .hg or .git repositories (if we got the source via git
	# or mercurial)
	printf "obj\n./.git\n./.hg\n" > "${intmp}"
	egrep="$*"
	if [ "${egrep}" = "" ]; then
		egrep='.'
	fi
	set -f
	${MTREE} -c -X "${intmp}" | ${MTREE} -CS -k type | \
		${EGREP} -v 'type=link' | ${EGREP} ${egrep} | \
		${SED} -e 's:type=file:& mode=0664:' \
			-e 's:type=dir:& mode=0775:' \
			-e 's:$: uname=root gname=wsrc:' \
			-e '/\/move-if-change /s:\(mode\)=[0-9]*:\1=0775:' \
			-e '/^\.\/.*[.-]sh /s:\(mode\)=[0-9]*:\1=0775:' | \
		${PAX} -M -N "${PASSWD}" -w -d -s'|^\.|'"${srcprefix}"'|' | \
		${GZIP_CMD} > "${setdir}/${set}"
	rm -f "${intmp}"
)}


# create (base)src sets
#

if ! cd "${srcdir}"; then
	echo >&2 "${prog}: can't chdir to ${srcdir}"
	exit 1
fi

srcprefix=usr/src
export setdir MTREE PAX CKSUM GZIP PASSWD srcprefix

makeset src . -v '^\.\/common|^\.\/external\/gpl2|^\.\/external\/gpl3|^\.\/share|^\.\/sys|^\.\/usr\.bin\/config'

makeset gnusrc . -e '^\..type=dir|^\.\/external.type=dir|^\.\/external\/gpl2|^\.\/external\/gpl3'

makeset syssrc . -e '^\..type=dir|^\.\/sys|^\.\/usr\.bin.type=dir|^\.\/usr\.bin\/config|^\.\/common'

makeset sharesrc share


# create xsrc sets
#
if [ -n "${xsrcdir}" ]; then
	if ! cd "${xsrcdir}"; then
		echo >&2 "${prog}: can't chdir to ${xsrcdir}"
		exit 1
	fi
	srcprefix=usr/xsrc
	makeset xsrc .
fi


msg "Creating checksum files"
(cd "${setdir}"
	${CKSUM} -a md5  *.tgz *.tar.xz > MD5
	${CKSUM} -a sha512 *.tgz *.tar.xz > SHA512
)
exit 0