#!/bin/bash
# Copyright (C) 2015 Alexander Larsson <alexl@redhat.com>
# Copyright (C) 2012 Colin Walters <walters@verbum.org>
# Copyright (C) 2012 Adrian Perez <aperez@igalia.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

set -e
umask 022

die () {
    echo "$*" 1>&2
    exit 1
}

usage () {
    echo "$0: SRCDIR WORKDIR ARCHITECTURE"
}

srcdir=$1
test -n "${srcdir}" || (usage; exit 1)
workdir=$2
test -n "${workdir}" || (usage; exit 1)
architecture=$3
test -n "${architecture}" || (usage; exit 1)
HASH=$4
test -n "${HASH}" || (usage; exit 1)

IMAGEDIR=${srcdir}/images/${architecture}
mkdir -p $IMAGEDIR

. "${srcdir}/yocto/oe-init-build-env" "${workdir}/${architecture}"

LAYERNAMES=$(cat ${srcdir}/LAYERS)
LAYERS=""
for layername in ${LAYERNAMES}; do
    LAYERS="${LAYERS} \${OSTREE_SRCDIR}/${layername}"
done

SSTATE_DIR="${workdir}/sstate-cache"
DL_DIR="${workdir}/downloads"

cat > ${workdir}/${architecture}/conf/bblayers.conf <<EOF
# LAYER_CONF_VERSION is increased each time build/conf/bblayers.conf
# changes incompatibly
LCONF_VERSION = "6"

BBPATH = "\${TOPDIR}"
BBFILES ?= ""

OSTREE_SRCDIR = "${srcdir}"
BBLAYERS ?= "${LAYERS}"
EOF

case "$architecture" in
    i386) MACHINE="qemux86";;
    x86_64) MACHINE="qemux86-64";;
    arm) MACHINE="qemuarmv7a";;
    aarch64) MACHINE="qemuarm64";;
    *) echo "Error: Unhandled architecture '$architecture'"; exit 1;;
esac

mkdir -p ${workdir}/${architecture}/conf
localconf=${workdir}/${architecture}/conf/local.conf
if ! grep -q "DISTRO.*freedesktop" ${localconf}; then
    numcpus=$(( $(getconf _NPROCESSORS_ONLN) / 2 + 1 ))
    cat > ${localconf}.tmp <<EOF
PARALLEL_MAKE = "-j ${numcpus}"
BB_NUMBER_THREADS = "${numcpus}"
LAYER_CONF_VERSION = "6"
CONF_VERSION = "1"
MACHINE = "${MACHINE}"
DISTRO = "freedesktop"
USER_CLASSES = ""
PACKAGE_CLASSES = "package_rpm"
PATCHRESOLVE = "noop"
SSTATE_DIR = "${SSTATE_DIR}"
DL_DIR = "${DL_DIR}"
INHERIT += "rm_work"
EOF
    mv ${localconf}.tmp ${localconf}
fi

bitbake freedesktop-contents-{sdk,platform}
rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi

for basetype in sdk platform; do
    cp -f ${workdir}/${architecture}/tmp-glibc/deploy/images/${MACHINE}/freedesktop-contents-${basetype}-${MACHINE}.tar.gz $IMAGEDIR/freedesktop-contents-${basetype}-${architecture}-${HASH}.tar.gz
done