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#!/usr/bin/env bash
# helper script: download coreboot
#
# Copyright (C) 2014-2016,2020,2021,2023 Leah Rowe <info@minifree.org>
# Copyright (C) 2022 Alper Nebi Yasak <alpernebiyasak@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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. If not, see <http://www.gnu.org/licenses/>.
#
[ "x${DEBUG+set}" = 'xset' ] && set -v
set -u -e
_board=""
cbtree=""
cbrevision=""
cbcfgsdir="resources/coreboot"
main()
{
rm -f ${cbcfgsdir}/*/seen
printf "Downloading coreboot and (if available) applying patches\n"
boards=""
if [ $# -gt 0 ]; then
boards=$@
else
for board in "${cbcfgsdir}/"*; do
[ ! -d "${board}" ] && continue
boards="${boards} ${board##*/}"
done
fi
for board in ${boards}; do
rm -f "${cbcfgsdir}"/*/seen
download_coreboot_for_board "${board}"
done
rm -f ${cbcfgsdir}/*/seen
}
download_coreboot_for_board()
{
_board="${1}"
cbtree="undefined"
cbrevision="undefined"
fetch_coreboot_config "${_board}" || exit 1
rm -f "${cbcfgsdir}"/*/seen
if [ -d "coreboot/${cbtree}" ]; then
printf "REMARK: download/coreboot %s: exists. Skipping.\n" \
${cbtree}
[ "${cbtree}" != "${1}" ] && \
printf "(for board: '%s}')\n" ${1}
return 0
fi
gitclone_coreboot_from_upstream || exit 1
prepare_new_coreboot_tree "${1}" "${cbtree}" "${cbrevision}" \
|| exit 1
}
fetch_coreboot_config()
{
_board=${1}
while true; do
cbrevision="undefined"
cbtree="undefined"
check_config_for_board "${_board}" || return 1
# This is to override $cbrevision and $cbtree
source "${cbcfgsdir}/${_board}/board.cfg" || exit 1
if [ "${_board}" != "${cbtree}" ]; then
_board="${cbtree}"
continue
elif [ "${cbtree}" = "undefined" ]; then
printf "ERROR: download/coreboot:"
printf " tree name undefined for '%s\n'" \
${_board}
return 1
elif [ "${cbrevision}" = "undefined" ]; then
printf "ERROR: download/coreboot:"
printf " commit ID undefined for '%s'\n" \
${_board}
return 1
else
break
fi
done
}
check_config_for_board()
{
_board=${1}
if [ ! -f "${cbcfgsdir}/${_board}/board.cfg" ]; then
printf "ERROR: download/coreboot: board.cfg does not"
printf " exist for '%s'\n" ${_board}
return 1
elif [ -f "${cbcfgsdir}/${_board}/seen" ]; then
printf "ERROR: download/coreboot: logical loop:"
printf " '%s' board.cfg refers to another tree," ${_board}
printf " which ultimately refers back to '%s'." ${_board}
return 1
fi
touch "${cbcfgsdir}/${_board}/seen"
}
gitclone_coreboot_from_upstream()
{
[ ! -d coreboot ] && \
mkdir -p coreboot
[ ! -d coreboot ] && \
return 1
[ -d coreboot/coreboot ] && \
return 0
./gitclone coreboot || \
return 1
}
prepare_new_coreboot_tree()
{
target=${1}
cbtree=${2}
cbrevision=${3}
printf "Preparing coreboot tree: %s\n" ${cbtree}
[ "${cbtree}" != "${target}" ] && \
printf "(for board: %s)\n" "${target}"
cp -R coreboot/coreboot "coreboot/${cbtree}" || exit 1
(
cd "coreboot/${cbtree}" \
|| err "cannot cd to coreboot/${cbtree}"
git reset --hard ${cbrevision} \
|| err "cannot reset coreboot revision for tree, ${cbtree}"
git submodule update --init --checkout \
|| err "cannot update coreboot submodules for tree, ${cbtree}"
for patch in ../../"${cbcfgsdir}"/"${cbtree}"/patches/*.patch; do
[ ! -f "${patch}" ] && \
continue
if ! git am "${patch}"; then
git am --abort
err "cannot patch ${cbtree}"
fi
done
# extra.sh can be used for anything
# but should *only* be a last resort
if [ -f "../../${cbcfgsdir}/${cbtree}/extra.sh" ]; then
"../../${cbcfgsdir}/${cbtree}/extra.sh" || \
err "${cbtree} extra.sh"
fi
)
}
err()
{
printf "ERROR: %s: %s\n" $0 $1 1>&2
exit 1
}
main $@
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