diff options
Diffstat (limited to 'fetch_trees')
-rwxr-xr-x | fetch_trees | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/fetch_trees b/fetch_trees new file mode 100755 index 00000000..37ff0928 --- /dev/null +++ b/fetch_trees @@ -0,0 +1,191 @@ +#!/usr/bin/env sh + +# helper script: create code trees based on git revision, with patches +# (currently used for downloading coreboot and u-boot) +# +# Copyright (C) 2014-2016,2020,2021,2023 Leah Rowe <info@minifree.org> +# Copyright (C) 2022 Alper Nebi Yasak <alpernebiyasak@gmail.com> +# Copyright (C) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.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 + +_target="" +tree="" +rev="" +project="" +cfgsdir="" + +main() +{ + rm -f ${cfgsdir}/*/seen + + printf "Downloading %s and (if available) applying patches\n" \ + ${project} + + [ -z "${1}" ] && err "project name not specified" + project="${1}" + cfgsdir="resources/${project}" + [ -d "${cfgsdir}" ] || err "unsupported project name" + shift 1 + + targets="" + if [ $# -gt 0 ]; then + targets=$@ + else + for x in "${cfgsdir}/"*; do + [ ! -d "${x}" ] && continue + targets="${targets} ${x##*/}" + done + fi + for x in ${targets}; do + rm -f "${cfgsdir}"/*/seen + download_for_target "${x}" + done + + rm -f ${cfgsdir}/*/seen +} + +download_for_target() +{ + _target="${1}" + tree="undefined" + rev="undefined" + + fetch_config "${_target}" || exit 1 + + rm -f "${cfgsdir}"/*/seen + + if [ -d "${project}/${tree}" ]; then + printf "REMARK: download/%s %s: exists. Skipping.\n" \ + ${project} ${tree} + [ "${tree}" != "${1}" ] && \ + printf "(for target: '%s}')\n" ${1} + return 0 + fi + + gitclone_from_upstream || exit 1 + + prepare_new_tree "${1}" "${tree}" "${rev}" \ + || exit 1 +} + +fetch_config() +{ + _target=${1} + + while true; do + rev="undefined" + tree="undefined" + + check_config_for_target "${_target}" || return 1 + + # This is to override $rev and $tree + . "${cfgsdir}/${_target}/target.cfg" || exit 1 + + if [ "${_target}" != "${tree}" ]; then + _target="${tree}" + continue + elif [ "${tree}" = "undefined" ]; then + printf "ERROR: download/%s:" + printf " tree name undefined for '%s\n'" \ + ${project} ${_target} + return 1 + elif [ "${rev}" = "undefined" ]; then + printf "ERROR: download/%s:" + printf " commit ID undefined for '%s'\n" \ + ${project} ${_target} + return 1 + else + break + fi + done +} + +check_config_for_target() +{ + _target=${1} + + if [ ! -f "${cfgsdir}/${_target}/target.cfg" ]; then + printf "ERROR: download/%s: target.cfg does not" ${project} + printf " exist for '%s'\n" ${_target} + return 1 + elif [ -f "${cfgsdir}/${_target}/seen" ]; then + printf "ERROR: download/%s: logical loop:" ${project} + printf " '%s' target.cfg refers to another tree," ${_target} + printf " which ultimately refers back to '%s'." ${_target} + return 1 + fi + touch "${cfgsdir}/${_target}/seen" +} + +gitclone_from_upstream() +{ + [ ! -d "${project}" ] && \ + mkdir -p "${project}" + [ ! -d "${project}" ] && \ + return 1 + [ -d "${project}/${project}" ] && \ + return 0 + ./gitclone ${project} || \ + return 1 +} + +prepare_new_tree() +{ + target=${1} + tree=${2} + rev=${3} + + printf "Preparing %s tree: %s\n" ${project} ${tree} + [ "${tree}" != "${target}" ] && \ + printf "(for target, %s)\n" "${target}" + + cp -R "${project}/${project}" "${project}/${tree}" || exit 1 + ( + cd "${project}/${tree}" \ + || err "cannot cd to ${project}/${tree}" + git reset --hard ${rev} \ + || err "cannot reset ${project} revision for tree, ${tree}" + git submodule update --init --checkout \ + || err "cannot update ${project} submodules for tree, ${tree}" + + for patch in ../../"${cfgsdir}"/"${tree}"/patches/*.patch; do + [ ! -f "${patch}" ] && \ + continue + if ! git am "${patch}"; then + git am --abort + err "cannot patch ${tree}" + fi + done + + # extra.sh can be used for anything + # but should *only* be a last resort + if [ -f "../../${cfgsdir}/${tree}/extra.sh" ]; then + "../../${cfgsdir}/${tree}/extra.sh" || \ + err "${tree} extra.sh" + fi + ) +} + +err() +{ + printf "ERROR, %s, %s\n" $0 $1 1>&2 + exit 1 +} + +main $@ |