File build-recipe-preinstallimage of Package build

#
# preinstall 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
#
################################################################

recipe_setup_preinstallimage() {
    # should never be called
    cleanup_and_exit 1
}

recipe_prepare_preinstallimage() {
    :
}

recipe_build_preinstallimage() {
    echo "creating preinstall image..."
    test -d "$BUILD_ROOT/.preinstall_image" || cleanup_and_exit 1
    cd $BUILD_ROOT || cleanup_and_exit 1
    TAR="tar"
    if test -x /usr/bin/bsdtar; then
	TAR="/usr/bin/bsdtar --format pax --chroot"
    fi
    TOPDIRS=
    for DIR  in .* * ; do
      case "$DIR" in
	.|..) continue ;;
	.build.kernel.*) ;; # to be packaged
	.build.hostarch.*) ;; # to be packaged
	.build.initrd.*) ;; # to be packaged
	.build.console.*) ;; # to be packaged
	.build*) continue ;;
	.init_b_cache) continue ;;
	.preinstallimage*) continue ;;
	.srcfiles*) continue ;;
	.pkgs) continue ;;
	.rpm-cache) continue ;;
	installed-pkg) continue ;;
	proc|sys) continue ;;
      esac
      TOPDIRS="$TOPDIRS $DIR"
    done
    $TAR -cf .preinstallimage.tar --one-file-system $TOPDIRS || cleanup_and_exit 1
    echo "image created."
    TOPDIR=/usr/src/packages
    mkdir -p $BUILD_ROOT$TOPDIR/OTHER
    rm -f $BUILD_ROOT$TOPDIR/OTHER/preinstallimage.info
    for PKG in $BUILD_ROOT/.preinstall_image/* ; do
	PKG=${PKG##*/}
	read PKG_HDRMD5 PKGID < $BUILD_ROOT/.preinstall_image/$PKG
	test -n "$PKG_HDRMD5" || cleanup_and_exit 1
	echo "$PKG_HDRMD5  $PKG" >> $BUILD_ROOT$TOPDIR/OTHER/preinstallimage.info
    done
    mv $BUILD_ROOT/.preinstallimage.tar $BUILD_ROOT$TOPDIR/OTHER/preinstallimage.tar || cleanup_and_exit 1
    rm -f $BUILD_ROOT/.build.packages
    ln -s ${TOPDIR#/} $BUILD_ROOT/.build.packages
    test -d "$SRCDIR" && cd "$SRCDIR"
}

recipe_resultdirs_preinstallimage() {
    :
}

recipe_cleanup_preinstallimage() {
    :
}


preinstallimage_compress() {
    local otherdir="$1"
    local pimage="$otherdir/preinstallimage.tar"

    if test ! -d "$otherdir" -o -L "$otherdir" -o ! -f "$pimage" -o -L "$pimage" ; then
        return
    fi

    rm -f "$pimage".*
    if test -n "$(type -p zstd)" ; then
        echo "Compressing preinstallimage using 'zstd'."
        zstd --no-progress --rm -19 -T0 "$pimage"
    else
        echo "Compressing preinstallimage using 'gzip'."
        gzip "$pimage"
    fi
}