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#!/usr/bin/env bash
# helper script: download u-boot
#
# Copyright (C) 2014, 2015, 2016, 2020, 2021 Leah Rowe <info@minifree.org>
# Copyright (C) 2021 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
#
# 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${DEBUG+set}" = 'xset' ] && set -v
set -u -e
# set this when you want to modify each u-boot tree
# for example, you want to test custom patches
# NODELETE= ./download coreboot
deleteblobs="true"
[ "x${NODELETE+set}" = 'xset' ] && deleteblobs="false"
# Error handling is extreme in this script.
# This script handles the internet, and Git. Both are inherently unreliable.
[[ -f build_error ]] && rm -f build_error
downloadfor() # (uboot_revision uboot_dir)
{
uboot_revision="$1"
uboot_dir="$2"
if [ -d "${uboot_dir}" ]; then
printf \
"REMARK: '%s' directory already exists. Skipping setup.\n" \
"${uboot_dir}"
return 0
fi
if [ ! -d "${uboot_dir}" ]; then
mkdir -p "${uboot_dir}"
fi
if [ ! -d "${uboot_dir}" ]; then
printf \
"ERROR: '%s' directory not created. Check file system permissions\n" \
"${uboot_dir}"
return 1
fi
if [ ! -d "${uboot_dir}/.git" ] && [ -d "${uboot_dir}" ]; then
rm -Rf "${uboot_dir}"
fi
if [ ! -d "${uboot_dir}" ]; then
printf "Download u-boot from upstream:\n"
git clone https://source.denx.de/u-boot/u-boot \
"${uboot_dir}" || \
rm -Rf "${uboot_dir}"
if [ ! -d "${uboot_dir}" ]; then
printf \
"ERROR: %s: Problem with git-clone. Network issue?\n" \
"download/u-boot"
return 1
fi
else
git -C "${uboot_dir}" pull || touch build_error
if [ -f build_error ]; then
printf \
"ERROR: %s: Problem with git-pull. Network issue?\n" \
"download/u-boot"
return 1
fi
fi
git -C "${uboot_dir}" reset --hard ${uboot_revision} || \
touch build_error
if [ -f build_error ]; then
printf \
"ERROR: %s: Unable to reset to commit ID/tag '%s' for board '%s' on tree '%s'\n" \
"download/u-boot" "${uboot_revision}" "${1}" "${uboot_dir}"
return 1
fi
}
strip_comments()
{
file="$1"
# Remove comments
sed 's/#.*//' "${file}" | \
# Remove lines composed of whitespaces only
sed '/^\W\+$/d' | \
# Remove empty lines
sed '/^$/d'
}
printf "Downloading u-boot and (if exist in build system) applying patches\n"
downloadfor $1 "$2"
rm -f "build_error"
printf "\n\n"
if [ "${deleteblobs}" = "true" ]; then
bloblist="$3"
if [[ -f "${bloblist}" ]]; then
for blob_path in $(strip_comments "${bloblist}"); do
if echo "${blob_path}" | grep '/$' 2>&1 >/dev/null ; then
printf "Deleting blob directory: '%s/%s'\n" \
"${uboot_dir}" "${blob_path}"
rm -rf "${uboot_dir}/${blob_path}"
else
printf "Deleting blob file: '%s/%s'\n" \
"${uboot_dir}" "${blob_path}"
rm -f "${uboot_dir}/${blob_path}"
fi
done
else
printf \
"ERROR: %s: bloblist: %s not found.\n" \
"$(basename $0)" "${bloblist}"
exit 1
fi
fi
exit 0
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