#
# RPM specific functions.
#
################################################################
#
# Copyright (c) 1995-2014 SUSE Linux Products GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or 3 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program (see the file COPYING); if not, write to the
# Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#
################################################################


pkg_initdb_rpm() {
    echo "initializing rpm db..."
    mkdir -p "$BUILD_ROOT"/var/lib/rpm
    # rpm v5 does not have initdb
    if ! test -e "$BUILD_ROOT"/usr/lib/rpm/cpuinfo.yaml ; then
	if test -x "$BUILD_ROOT"/usr/bin/rpmdb ; then
	    chroot "$BUILD_ROOT" /usr/bin/rpmdb --initdb || cleanup_and_exit 1
	else
	    chroot "$BUILD_ROOT" rpm --initdb || cleanup_and_exit 1
	fi
    fi
    # hack: add nofsync to db config to speed up install
    mkdir -p "$BUILD_ROOT"/root
    DBI_OTHER=`chroot "$BUILD_ROOT" rpm --eval '%{?__dbi_other}'`
    echo "%__dbi_other $DBI_OTHER nofsync" > "$BUILD_ROOT"/.rpmmacros
    echo "%__dbi_other $DBI_OTHER nofsync" > "$BUILD_ROOT"/root/.rpmmacros
}

pkg_prepare_rpm() {
    rpm_set_checkopts
    rpm_init_cumulate
}

pkg_erase_rpm() {
    chroot "$BUILD_ROOT" rpm --nodeps -e $PKG 2>&1 | {
	local retry
	while read line; do
	    case "$line" in
		r*failed:\ No\ such\ file\ or\ directory) ;;
		error:\ failed\ to\ stat\ *:\ No\ such\ file\ or\ directory) ;;
		error:\ *scriptlet\ failed*)
		    echo "$line"
		    retry=1
		;;
		*) echo "$line" ;;
	    esac
	done
	if test -n "$retry" ; then
	    echo "re-try deleting $PKG using --noscripts"
	    chroot "$BUILD_ROOT" rpm --nodeps --noscripts -e $PKG || true
	fi
    }
}

rpm_set_checkopts() {
    RPMCHECKOPTS=
    # on Fedora 10 rpmbuild is in a separate package so we need something else to
    # detect rpm4
    test -x "$BUILD_ROOT"/usr/bin/rpmquery && RPMCHECKOPTS="--nodigest --nosignature"
}

rpm_init_cumulate() {
    cumulate=-1
    CUMULATED_LIST=()
    CUMULATED_PIDS=()
    CUMULATED_HMD5=()
    DO_CUMULATE=
    typeset -ri suse_version=$(chroot "$BUILD_ROOT" rpm --eval '%{?suse_version}' 2>/dev/null)
    if ((suse_version > 1220)) ; then
	DO_CUMULATE=true
    fi
}

pkg_verify_installed_rpm() {
    chroot "$BUILD_ROOT" rpm --verify $PKG 2>&1 | tee $TMPFILE
    if grep ^missing $TMPFILE > /dev/null ; then
	return 1
    fi
    return 0
}

pkg_cumulate_rpm() {
    test "$DO_CUMULATE" = true || return 1
    # work around for cross-build installs, we must not overwrite the running rpm
    if test "$PKG" = rpm ; then
	for i in "$BUILD_ROOT"/.init_b_cache/preinstalls/rpm-x86-* ; do
	    test -e "$i" && return 1
	done
    fi
    let cumulate++
    CUMULATED_LIST[$cumulate]=".init_b_cache/$PKG.rpm"
    CUMULATED_PIDS[$cumulate]="$PKGID"
    CUMULATED_HMD5[$cumulate]="$PKG_HDRMD5"
    return 0
}

pkg_install_rpm() {
    ( cd "$BUILD_ROOT" && chroot "$BUILD_ROOT" rpm --ignorearch --nodeps -U --oldpackage --ignoresize $RPMCHECKOPTS \
		$ADDITIONAL_PARAMS .init_b_cache/$PKG.rpm 2>&1 || \
	  touch "$BUILD_ROOT"/exit ) | \
	      grep -v "^warning:.*saved as.*rpmorig$"
}

pkg_finalize_rpm() {
    if test -n "${CUMULATED_LIST[*]}" ; then
	echo "now installing cumulated packages"
	for ((num=0; num<=cumulate; num++)) ; do
	    echo ${CUMULATED_LIST[$num]}
	    PKG=${CUMULATED_LIST[$num]##*/}
	    test "$BUILD_ROOT/.init_b_cache/rpms/$PKG" -ef "$BUILD_ROOT/${CUMULATED_LIST[$num]}" && continue
	    rm -f "$BUILD_ROOT"/${CUMULATED_LIST[$num]}
	    cp "$BUILD_ROOT"/.init_b_cache/rpms/$PKG "$BUILD_ROOT"/${CUMULATED_LIST[$num]} || cleanup_and_exit 1
	done > "$BUILD_ROOT"/.init_b_cache/manifest
	( cd "$BUILD_ROOT" && chroot "$BUILD_ROOT" rpm --ignorearch --nodeps -Uh --oldpackage --ignoresize --verbose $RPMCHECKOPTS \
		$ADDITIONAL_PARAMS .init_b_cache/manifest 2>&1 || touch "$BUILD_ROOT"/exit )
	for ((num=0; num<=cumulate; num++)) ; do
	    rm -f "$BUILD_ROOT"/${CUMULATED_LIST[$num]}
	done
	rm -f "$BUILD_ROOT"/.init_b_cache/manifest
	check_exit
	for ((num=0; num<=cumulate; num++)) ; do
	    PKG=${CUMULATED_LIST[$num]##*/}
	    echo "${CUMULATED_PIDS[$num]}" > "$BUILD_ROOT"/installed-pkg/${PKG%.rpm}
	    test -n "${CUMULATED_HMD5[$num]}" || continue
	    echo "${CUMULATED_HMD5[$num]} ${CUMULATED_PIDS[$num]}" > "$BUILD_ROOT"/.preinstall_image/${PKG%.rpm}
	done
    fi
}

pkg_preinstall_rpm() {
    PAYLOADDECOMPRESS=cat
    case `rpm -qp --nodigest --nosignature --qf "%{PAYLOADCOMPRESSOR}\n" "'$BUILD_ROOT'/.init_b_cache/rpms/$PKG.rpm"` in
	lzma) rpm --showrc | egrep 'PayloadIsLzma|_lzma' > /dev/null || PAYLOADDECOMPRESS="lzma -d" ;;
	xz) rpm --showrc | egrep 'PayloadIsXz|_xz' > /dev/null || PAYLOADDECOMPRESS="xz -d" ;;
	zstd) rpm --showrc | egrep 'PayloadIsZstd' > /dev/null || PAYLOADDECOMPRESS="zstd -d" ;;
    esac
    if test "$PAYLOADDECOMPRESS" = "lzma -d" ; then
	if ! lzma </dev/null >/dev/null 2>&1 ; then
	    test -f "$BUILD_DIR/lzmadec.sh" || cleanup_and_exit 3 "no lzma decoder available in host system"
	    PAYLOADDECOMPRESS="bash $BUILD_DIR/lzmadec.sh"
	fi
    fi
    if test "$PAYLOADDECOMPRESS" = "xz -d" ; then
	if ! xz </dev/null >/dev/null 2>&1 ; then
	    test -f "$BUILD_DIR/xzdec.sh" || cleanup_and_exit 3 "no xz decoder available in host system"
	    PAYLOADDECOMPRESS="bash $BUILD_DIR/xzdec.sh"
	fi
    fi
    if test "$PAYLOADDECOMPRESS" = "zstd -d" ; then
	if ! zstd </dev/null >/dev/null 2>&1 ; then
	    test -f "$BUILD_DIR/zstddec.sh" || cleanup_and_exit 3 "no zstd decoder available in host system"
	    PAYLOADDECOMPRESS="bash $BUILD_DIR/zstddec.sh"
	fi
    fi
    if test "$PAYLOADDECOMPRESS" = cat ; then
	rpm2cpio "$BUILD_ROOT/.init_b_cache/rpms/$PKG.rpm" | $CPIO
    else
	rpm2cpio "$BUILD_ROOT/.init_b_cache/rpms/$PKG.rpm" | $PAYLOADDECOMPRESS | $CPIO
    fi
    if test -e ".init_b_cache/scripts/$PKG.run" ; then
	rpm -qp --nodigest --nosignature --qf "%{PREIN}" "'$BUILD_ROOT'/.init_b_cache/rpms/$PKG.rpm" > ".init_b_cache/scripts/$PKG.pre"
	rpm -qp --nodigest --nosignature --qf "%{POSTIN}" "'$BUILD_ROOT'/.init_b_cache/rpms/$PKG.rpm" > ".init_b_cache/scripts/$PKG.post"
	echo -n '(none)' > .init_b_cache/scripts/.none
	cmp -s ".init_b_cache/scripts/$PKG.pre" .init_b_cache/scripts/.none && rm -f ".init_b_cache/scripts/$PKG.pre"
	cmp -s ".init_b_cache/scripts/$PKG.post" .init_b_cache/scripts/.none && rm -f ".init_b_cache/scripts/$PKG.post"
	rm -f .init_b_cache/scripts/.none
    fi
    # hack for rpm erasures
    if test -d "$BUILD_ROOT/installed-pkg" ; then
	# call for rpm-4.x and not rpm-devel
        test -z "${PKG##rpm-[0-9]*}" && chroot "$BUILD_ROOT" rpm --rebuilddb
        # also exec for exchanged rpm !  naming is rpm-x86-<target>-<ver>
        test -z "${PKG##rpm-x86-*[0-9]*}" && chroot "$BUILD_ROOT" rpm --rebuilddb
    fi
}

pkg_runscripts_rpm() {
    if test -e "$BUILD_ROOT/.init_b_cache/scripts/$PKG.pre" ; then
	echo "running $PKG preinstall script"
	(cd "$BUILD_ROOT" && chroot "$BUILD_ROOT" sh ".init_b_cache/scripts/$PKG.pre" 0)
	rm -f "$BUILD_ROOT/.init_b_cache/scripts/$PKG.pre"
    fi
    if test -e "$BUILD_ROOT/.init_b_cache/scripts/$PKG.post" ; then
	echo "running $PKG postinstall script"
	(cd "$BUILD_ROOT" && chroot "$BUILD_ROOT" sh ".init_b_cache/scripts/$PKG.post" 1)
	rm -f "$BUILD_ROOT/.init_b_cache/scripts/$PKG.post"
    fi
}