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#!/usr/bin/env sh
# helper script: download u-boot
#
# Copyright (C) 2021 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.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
[ -f build_error ] && rm -f build_error
list_supported_boards() {
for board in resources/u-boot/*; do
if [ -d ${board} ]; then
echo "${board#resources/u-boot/}"
fi
done
}
downloadfor() {
board="${1}"
# The loop will always exit, but this while loop is crafted
# such that a tree referencing a tree that references another tree is possible
# (and so on)
while true; do
ubrevision="undefined"
ubtree="undefined"
if [ ! -f "resources/u-boot/${board}/board.cfg" ]; then
printf "ERROR: %s: board.cfg does not exist for '%s'\n" \
"download/u-boot" "${board}"
return 1
fi
if [ -f "resources/u-boot/${board}/seen" ]; then
printf "ERROR: %s: logical loop; '%s' board.cfg refers to another tree, which ultimately refers back to '%s'.\n" \
"download/u-boot" "${board}" "${board}"
return 1
fi
# This is to override $ubrevision and $ubtree
. "resources/u-boot/${board}/board.cfg" || touch build_error
if [ -f build_error ]; then
printf "ERROR: %s: problem sourcing %s/board.cfg\n" \
"download/u-boot" "${board}"
return 1
fi
touch "resources/u-boot/${board}/seen"
if [ "${board}" != "${ubtree}" ]; then
board="${ubtree}"
else
if [ "${ubtree}" = "undefined" ]; then
printf "ERROR: %s: tree name undefined for '%s\n'" \
"download/u-boot" "${board}"
return 1
fi
if [ "${ubrevision}" = "undefined" ]; then
printf "ERROR: %s: commit ID undefined for '%s'\n" \
"download/u-boot" "${board}"
return 1
fi
break
fi
done
rm -f resources/u-boot/*/seen
ubtree="u-boot/${ubtree}"
if [ -d "${ubtree}" ]; then
printf \
"REMARK: '%s' directory already exists. Skipping setup.\n" \
"${ubtree}"
if [ "${ubtree}" != "u-boot/${board}" ]; then
printf "(for board: '${board}')\n"
fi
return 0
fi
if [ ! -d "u-boot" ]; then
mkdir -p "u-boot"
fi
if [ ! -d "u-boot" ]; then
printf \
"ERROR: '%s' directory not created. Check file system permissions\n" \
"u-boot"
return 1
fi
uboot_dir="u-boot/u-boot"
if [ ! -d "${uboot_dir}/.git" ] && [ -d "${uboot_dir}" ]; then
rm -Rf "${uboot_dir}"
fi
if [ ! -d "${uboot_dir}" ]; then
printf "Download u-boot from upstream:\n"
git clone https://source.denx.de/u-boot/u-boot.git \
"${uboot_dir}" || \
rm -Rf "${uboot_dir}"
if [ ! -d "${uboot_dir}" ]; then
printf "WARNING: Upstream failed. Trying backup github repository:\n"
git clone https://github.com/u-boot/u-boot.git \
"${uboot_dir}" || \
rm -Rf coreboot
fi
if [ ! -d "${uboot_dir}" ]; then
printf \
"ERROR: %s: Problem with git-clone. Network issue?\n" \
"download/u-boot"
return 1
fi
fi
git -C "${uboot_dir}" fetch origin "${ubrevision}" || touch build_error
if [ -f build_error ]; then
printf \
"ERROR: %s: Problem with git-fetch. Network issue?\n" \
"download/u-boot"
return 1
fi
cp -R "${uboot_dir}" "${ubtree}" || touch build_error
if [ -f build_error ]; then
printf "ERROR: %s: Unable to copy directory. Check file system permissions or free space.\n" \
"download/u-boot"
rm -Rf "${ubtree}/"
return 1
fi
git -C "${ubtree}" reset --hard ${ubrevision} || \
touch build_error
if [ -f build_error ]; then
printf \
"ERROR: %s: Unable to reset to commit ID/tag '%s' for board '%s' on tree '%s'\n" \
"download/u-boot" "${ubrevision}" "${board}" "${ubtree}"
return 1
fi
git -C "${ubtree}" submodule update --init || touch build_error
if [ -f build_error ]; then
printf "ERROR: %s: Unable to update submodules for tree '%s'\n" \
"${ubtree}"
return 1
fi
for patch in resources/u-boot/${board}/patches/*.patch; do
if [ ! -f "${patch}" ]; then
continue
fi
git -C "${ubtree}" am "$(pwd)/${patch}" || touch build_error
if [ -f build_error ]; then
printf "ERROR: %s: Unable to apply patch '%s' for board '%s' on tree '%s'" \
"download/u-boot" "${patch}" "${board}" "${ubtree}"
git -C "${ubtree}" am --abort
return 1
fi
done
# extra.sh could be used to patch submodules, if you wanted to
# It's impossible to predict what submodules will be available, and
# it's rare that you'd want to patch them, so this is handled by
# extra.sh on a per-board basis
# In fact, extra.sh can be used for anything you want.
if [ -f "resources/u-boot/${board}/extra.sh" ]; then
( cd "${ubtree}" && "../../resources/u-boot/${board}/extra.sh"; ) || touch build_error
if [ -f build_error ]; then
return 1
fi
return 0
else
return 0
fi
}
strip_comments()
{
file="$1"
# Remove comments
sed 's/#.*//' "${file}" | \
# Remove lines composed of whitespaces only
sed '/^\W\+$/d' | \
# Remove empty lines
sed '/^$/d'
}
usage()
{
progname="./download u-boot"
printf "Usage:\n"
printf "\t%s # %s\n" \
"${progname}" \
"Download u-boot for all boards"
printf "\t%s [board] # %s\n" \
"${progname}" \
"Download u-boot for the given board"
printf "\t%s --list-boards # %s\n" \
"${progname}" \
"List supported boards"
printf "\t%s --help # %s\n" \
"${progname}" \
"Prints this help"
}
download_uboot_board()
{
board="${1}"
ubtree="u-boot/${board}"
printf "Downloading u-boot "
printf "and (if exist in build system) applying patches\n"
downloadfor "${board}"
rm -f "build_error"
printf "\n\n"
}
if [ $# -eq 0 ] ; then
for board in $(list_supported_boards); do
download_uboot_board "${board}"
done
exit 0
elif [ $# -eq 1 ] && [ "$1" = "--help" ] ; then
usage
exit 0
elif [ $# -eq 1 ] && [ "$1" = "--list-boards" ] ; then
list_supported_boards
exit 0
elif [ $# -eq 1 ] ; then
for board in $(list_supported_boards) ; do
if [ "$board" = "$1" ] ; then
download_uboot_board "$1"
exit 0
fi
done
printf "Error: Board '${1}' is not supported\n"
exit 1
fi
exit 0
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