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-rwxr-xr-xfetch_trees191
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 $@