#################################################################
#
# Debian live-build specific functions.
#
# Author: Adrian Schroeter <adrian@suse.de>
#
# This file is part of build.
#
# 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_snapcraft() {
    TOPDIR=/usr/src/packages
    test "$DO_INIT_TOPDIR" = false || rm -rf "$BUILD_ROOT$TOPDIR"
    for i in OTHER SOURCES SNAPCRAFT_ROOT ; do
	mkdir -p "$BUILD_ROOT$TOPDIR/$i"
    done
    chown -R "$ABUILD_UID:$ABUILD_GID" "$BUILD_ROOT$TOPDIR"
    if test "$MYSRCDIR" = $BUILD_ROOT/.build-srcdir ; then
	mv "$MYSRCDIR"/* $BUILD_ROOT$TOPDIR/SOURCES/
    else
	cp -p "$MYSRCDIR"/* $BUILD_ROOT$TOPDIR/SOURCES/
    fi
}

recipe_prepare_snapcraft() {
    :
}

createrepo_debian() {
    local DIR=${1}
    local ARCH=${2}
    local DIST=${3}

    if [ -z "${DIR}" -o ! -d ${DIR} -o ${DIR} = ${DIR##${BUILD_ROOT}} ] ; then
        return
    fi

    pushd ${DIR} >/dev/null

    # cleanup existing repository files
    rm -f Packages Packages.gz Release
    rm -fr dists

    mkdir -p dists/${DIST}
    # Suite is symlinked to Codename
    ln -s ${DIST} dists/stable

    # create Packages and Sources files
    mkdir -p dists/${DIST}/main/binary-${ARCH}
    mkdir -p dists/${DIST}/main/source
    cat > ${BUILD_ROOT}/.createrepo_debian.tmp.sh <<-EOF
	cd /.build.binaries || exit 1
	dpkg-scanpackages -m . > dists/${DIST}/main/binary-${ARCH}/Packages
	gzip -c9 < dists/${DIST}/main/binary-${ARCH}/Packages \
	    > dists/${DIST}/main/binary-${ARCH}/Packages.gz
	dpkg-scansources . > dists/${DIST}/main/source/Sources
	gzip -c9 dists/${DIST}/main/source/Sources \
	    > dists/${DIST}/main/source/Sources.gz
	EOF
    chroot $BUILD_ROOT su -c "sh /.createrepo_debian.tmp.sh" - root
    local RESULT=$?
    rm -f $BUILD_ROOT/.createrepo_debian.tmp.sh
    [ "${RESULT}" != 0 ] && return

    # create Release file
    pushd dists/${DIST} >/dev/null
    cat > Release <<-EOF
	Origin: Debian
	Label: Debian
	Suite: stable
	Version: 7.1
	Codename: ${DIST}
	Date: Sat, 15 Jun 2013 10:55:26 UTC
	Description: Debian repository created by build-recipe-livebuild
	Components: main
	EOF
    echo "SHA256:" >> Release
    for file in main/binary-${ARCH}/Packages* ; do
        local SUM=( $(sha256sum ${file}) )
        local SIZE=$(stat -c '%s' ${file})
        echo " ${SUM} ${SIZE} ${file}" >> Release
    done
    for file in main/source/Sources* ; do
        local SUM=( $(sha256sum ${file}) )
        local SIZE=$(stat -c '%s' ${file})
        echo " ${SUM} ${SIZE} ${file}" >> Release
    done
    popd >/dev/null

    # TODO: this is missing the signature with the private key

    popd >/dev/null
}

# This script expects that the $BUILD_ROOT is a Debian installation with
# snapcraft already installed!
#
# Variables:
# $BUILD_ROOT the Debian chroot
# $TOPDIR/SOURCES includes the snapcraft sources
# $TOPDIR/$SNAPCRAFT_ROOT where snapcraft will be called
# $RECIPEFILE the name of the snapcraft.yaml config file

recipe_build_snapcraft() {
    local ARCH=$(chroot $BUILD_ROOT su -c "dpkg-architecture -qDEB_BUILD_ARCH")
#    local DIST=$(chroot $BUILD_ROOT su -c "lsb_release --codename" | awk '{ print $2 }')
    local SNAPCRAFT_ROOT="SNAPCRAFT_ROOT"

#    [ -z "${ARCH}" -o -z "${DIST}" ] && cleanup_and_exit 1

    test -d $BUILD_ROOT/.build.binaries || cleanup_and_exit 1
    if test "$DO_INIT" = true -o ! -d "$BUILD_ROOT/.build.binaries/dists" ; then
	echo "creating repository metadata..."
        createrepo_debian $BUILD_ROOT/.build.binaries ${ARCH} ${DIST}
    fi

    chroot $BUILD_ROOT su -c "cd $TOPDIR/SOURCES && snapcraft build" - root \
	|| cleanup_and_exit 1
    chroot $BUILD_ROOT su -c "cd $TOPDIR/SOURCES && snapcraft snap" - root \
	|| cleanup_and_exit 1

    # extract build result basenames
    local build_results=""
    for i in $BUILD_ROOT/$TOPDIR/SOURCES/* ; do
	test -f "$i" || continue
	case "${i##*/}" in
	    *.snap)
		build_results="${build_results}\n${i%%.snap}"
		;;
	    *)
		;;
	esac
    done

    # Fail the build if no build results are found
    if [ -z "${build_results}" ] ; then
	echo "No live-build result found"
	cleanup_and_exit 1
    fi

    # move created products (and their metadata files) to destination
    local buildnum="${RELEASE:+-Build${RELEASE}}"
    for prefix in $(echo -e ${build_results} | sort | uniq) ; do
	for f in ${prefix}.* ; do
	    mv ${f} \
		$BUILD_ROOT/$TOPDIR/OTHER/${prefix##*/}${buildnum}${f#${prefix}}
	    BUILD_SUCCEEDED=true
	done
    done
}

recipe_resultdirs_snapcraft() {
    # our results are already in OTHER
    :
}

# Local Variables:
# mode: Shell-script
# End: