mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 23:42:43 +00:00
226 lines
5.0 KiB
Bash
226 lines
5.0 KiB
Bash
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# Copyright (C) 2024 Olliver Schinagl <oliver@schinagl.nl>
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set -eu
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if [ -n "${DEBUG_TRACE_SH:-}" ] && \
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[ "${DEBUG_TRACE_SH:-}" != "${DEBUG_TRACE_SH#*"$(basename "${0}")"*}" ] || \
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[ "${DEBUG_TRACE_SH:-}" = 'all' ]; then
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set -x
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fi
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REQUIRED_COMMANDS='
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[
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basename
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command
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echo
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exit
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git
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printf
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set
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shift
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'
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_msg()
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{
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_level="${1:?Missing argument to function}"
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shift
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if [ "${#}" -le 0 ]; then
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echo "${_level}: No content for this message ..."
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return
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fi
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echo "${_level}: ${*}"
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}
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e_err()
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{
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_msg 'err' "${*}" >&2
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}
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e_warn()
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{
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_msg 'warning' "${*}"
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}
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e_notice()
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{
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_msg 'notice' "${*}"
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}
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usage()
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{
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echo "Usage: ${0}"
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echo 'Helper script to bump the target kernel version, whilst keeping history.'
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echo " -p Optional Platform name (e.g. 'ath79' [PLATFORM_NAME]"
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echo " -s Source version of kernel (e.g. 'v6.1' [SOURCE_VERSION])"
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echo " -t Target version of kernel (e.g. 'v6.6' [TARGET_VERSION]')"
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echo
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echo 'All options can also be passed in environment variables (listed between [BRACKETS]).'
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echo 'Example: scripts/kernel_bump.sh -p realtek -s v6.1 -t v6.6'
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}
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cleanup()
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{
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trap - EXIT HUP INT QUIT ABRT ALRM TERM
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if [ -n "${initial_branch:-}" ] && \
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[ "$(git rev-parse --abbrev-ref HEAD)" != "${initial_branch:-}" ]; then
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git switch "${initial_branch}"
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fi
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}
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init()
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{
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initial_branch="$(git rev-parse --abbrev-ref HEAD)"
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initial_commitish="$(git rev-parse HEAD)"
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trap cleanup EXIT HUP INT QUIT ABRT ALRM TERM
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}
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do_source_target()
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{
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_target_dir="${1:?Missing argument to function}"
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_op="${2:?Missing argument to function}"
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}
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bump_kernel()
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{
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platform_name="${platform_name##*'/'}"
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if [ -z "${platform_name:-}" ]; then
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platform_name="${PWD##*'/'}"
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fi
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if [ "${PWD##*'/'}" = "${platform_name}" ]; then
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_target_dir='./'
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else
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_target_dir="target/linux/${platform_name}"
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fi
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if [ ! -d "${_target_dir}/image" ]; then
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e_err 'Cannot find target linux directory.'
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exit 1
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fi
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git switch --force-create '__openwrt_kernel_files_mover'
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for _path in "${_target_dir}/"*; do
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if [ ! -s "${_path}" ] || \
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[ "${_path}" = "${_path%%"-${source_version}"}" ]; then
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continue
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fi
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_target_path="${_path%%"-${source_version}"}-${target_version}"
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if [ -s "${_target_path}" ]; then
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e_err "Target '${_target_path}' already exists!"
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exit 1
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fi
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git mv \
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"${_path}" \
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"${_target_path}"
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done
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find "${_target_dir}" -iname "config-${source_version}" | while read -r _config; do
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_path="${_config%%"/config-${source_version}"}"
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git mv "${_config}" "${_path}/config-${target_version}"
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done
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git commit \
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--signoff \
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--message "kernel/${platform_name}: Create kernel files for v${target_version} (from v${source_version})" \
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--message 'This is an automatically generated commit.' \
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--message 'During a `git bisect` session, `git bisect --skip` is recommended.'
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git checkout 'HEAD~' "${_target_dir}"
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git commit \
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--signoff \
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--message "kernel/${platform_name}: Restore kernel files for v${source_version}" \
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--message "$(printf "This is an automatically generated commit which aids following Kernel patch history,\nas git will see the move and copy as a rename thus defeating the purpose.\n\nSee: https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html\nfor the original discussion.")"
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git switch "${initial_branch:?Unable to switch back to original branch. Quitting.}"
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GIT_EDITOR=true git merge --no-ff '__openwrt_kernel_files_mover'
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git branch --delete '__openwrt_kernel_files_mover'
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echo "Original commitish was '${initial_commitish}'."
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echo 'Kernel bump complete. Remember to use `git log --follow`.'
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}
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check_requirements()
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{
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for _cmd in ${REQUIRED_COMMANDS}; do
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if ! _test_result="$(command -V "${_cmd}")"; then
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_test_result_fail="${_test_result_fail:-}${_test_result}\n"
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else
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_test_result_pass="${_test_result_pass:-}${_test_result}\n"
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fi
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done
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echo 'Available commands:'
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# As the results contain \n, we expect these to be interpreted.
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# shellcheck disable=SC2059
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printf "${_test_result_pass:-none\n}"
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echo
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echo 'Missing commands:'
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# shellcheck disable=SC2059
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printf "${_test_result_fail:-none\n}"
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echo
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if [ -n "${_test_result_fail:-}" ]; then
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echo 'Command test failed, missing programs.'
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test_failed=1
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fi
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}
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main()
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{
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while getopts 'hp:s:t:' _options; do
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case "${_options}" in
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'h')
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usage
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exit 0
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;;
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'p')
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platform_name="${OPTARG}"
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;;
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's')
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source_version="${OPTARG#v}"
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;;
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't')
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target_version="${OPTARG#v}"
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;;
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':')
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e_err "Option -${OPTARG} requires an argument."
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exit 1
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;;
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*)
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e_err "Invalid option: -${OPTARG}"
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exit 1
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;;
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esac
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done
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shift "$((OPTIND - 1))"
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platform_name="${platform_name:-${PLATFORM_NAME:-}}"
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source_version="${source_version:-${SOURCE_VERSION:-}}"
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target_version="${target_version:-${TARGET_VERSION:-}}"
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if [ -z "${source_version:-}" ] || [ -z "${target_version:-}" ]; then
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e_err "Source (${source_version}) and target (${target_version}) versions need to be defined."
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exit 1
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fi
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check_requirements
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init
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bump_kernel
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cleanup
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}
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main "${@}"
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exit 0
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