ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/scripts/kernel_bump.sh b/scripts/kernel_bump.sh
new file mode 100755
index 0000000..b1c17d6
--- /dev/null
+++ b/scripts/kernel_bump.sh
@@ -0,0 +1,263 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024 Olliver Schinagl <oliver@schinagl.nl>
+
+set -eu
+if [ -n "${DEBUG_TRACE_SH:-}" ] && \
+ [ "${DEBUG_TRACE_SH:-}" != "${DEBUG_TRACE_SH#*"$(basename "${0}")"*}" ] || \
+ [ "${DEBUG_TRACE_SH:-}" = 'all' ]; then
+ set -x
+fi
+
+REQUIRED_COMMANDS='
+ [
+ basename
+ command
+ echo
+ exit
+ git
+ printf
+ sed
+ set
+ shift
+ sort
+'
+
+_msg()
+{
+ _level="${1:?Missing argument to function}"
+ shift
+
+ if [ "${#}" -le 0 ]; then
+ echo "${_level}: No content for this message ..."
+ return
+ fi
+
+ echo "${_level}: ${*}"
+}
+
+e_err()
+{
+ _msg 'err' "${*}" >&2
+}
+
+e_warn()
+{
+ _msg 'warning' "${*}"
+}
+
+e_notice()
+{
+ _msg 'notice' "${*}"
+}
+
+usage()
+{
+ echo "Usage: ${0}"
+ echo 'Helper script to bump the target kernel version, whilst keeping history.'
+ echo ' -c Migrate config files (e.g. subtargets) only.'
+ echo " -p Optional Platform name (e.g. 'ath79' [PLATFORM_NAME]"
+ echo " -r Optional comma separated list of sub-targets (e.g. 'rtl930x' [SUBTARGET_NAMES]"
+ echo " -s Source version of kernel (e.g. 'v6.1' [SOURCE_VERSION])"
+ echo " -t Target version of kernel (e.g. 'v6.6' [TARGET_VERSION]')"
+ echo
+ echo 'All options can also be passed in environment variables (listed between [BRACKETS]).'
+ echo 'Note that this script must be run from within the OpenWrt git repository.'
+ echo 'Example: scripts/kernel_bump.sh -p realtek -s v6.1 -t v6.6'
+}
+
+cleanup()
+{
+ trap - EXIT HUP INT QUIT ABRT ALRM TERM
+
+ if [ -n "${initial_branch:-}" ] && \
+ [ "$(git rev-parse --abbrev-ref HEAD)" != "${initial_branch:-}" ]; then
+ git switch "${initial_branch}"
+ fi
+}
+
+init()
+{
+ src_file="$(readlink -f "${0}")"
+ src_dir="${src_file%%"${src_file##*'/'}"}"
+ initial_branch="$(git rev-parse --abbrev-ref HEAD)"
+ initial_commitish="$(git rev-parse HEAD)"
+
+ if [ -n "$(git status --porcelain | grep -v '^?? .*')" ]; then
+ echo 'Git respository not in a clean state, will not continue.'
+ exit 1
+ fi
+
+ if [ -n "${src_dir##*'/scripts/'}" ]; then
+ echo "This script '${src_file}' is not in the scripts subdirectory, this is unexpected, cannot continue."
+ exit 1
+ fi
+
+ source_version="${source_version#v}"
+ target_version="${target_version#v}"
+
+ trap cleanup EXIT HUP INT QUIT ABRT ALRM TERM
+}
+
+bump_kernel()
+{
+ if [ -z "${platform_name}" ] || \
+ [ -d "${PWD}/image" ]; then
+ platform_name="${PWD}"
+ fi
+ platform_name="${platform_name##*'/'}"
+
+ _target_dir="${src_dir}/../target/linux/${platform_name}"
+
+ if [ ! -d "${_target_dir}/image" ]; then
+ e_err "Cannot find target linux directory '${_target_dir:-not defined}'. Not in a platform directory, or -p not set."
+ exit 1
+ fi
+
+ git switch --force-create '__openwrt_kernel_files_mover'
+
+ if [ "${config_only:-false}" != 'true' ]; then
+ for _path in $(git ls-tree -d -r --name-only '__openwrt_kernel_files_mover' "${_target_dir}" |
+ sed -n "s|^\(.*-${source_version}\).*|\1|p" |
+ sort -u); do
+ if [ ! -e "${_path}" ] || \
+ [ "${_path}" = "${_path%%"-${source_version}"}" ]; then
+ continue
+ fi
+
+ _target_path="${_path%%"-${source_version}"}-${target_version}"
+ if [ -e "${_target_path}" ]; then
+ e_err "Target '${_target_path}' already exists!"
+ exit 1
+ fi
+
+ git mv \
+ "${_path}" \
+ "${_target_path}"
+ done
+ fi
+
+ for _config in $(git ls-files "${_target_dir}" |
+ sed -n "s|^\(.*config-${source_version}\).*|\1|p" |
+ sort -u); do
+ if [ ! -e "${_config}" ]; then
+ continue
+ fi
+
+ _subtarget="${_config%%"/config-${source_version}"}"
+ if [ -n "${subtarget_names:-}" ]; then
+ echo "${subtarget_names:-}" | while IFS=',' read -r _subtarget_name; do
+ if [ "${_subtarget_name}" = "${_subtarget##*'/'}" ]; then
+ git mv "${_config}" "${_subtarget}/config-${target_version}"
+ fi
+ done
+ else
+ git mv "${_config}" "${_subtarget}/config-${target_version}"
+ fi
+ done
+
+ git commit \
+ --signoff \
+ --message "kernel/${platform_name}: Create kernel files for v${target_version} (from v${source_version})" \
+ --message 'This is an automatically generated commit.' \
+ --message 'When doing `git bisect`, consider `git bisect --skip`.'
+
+ git checkout 'HEAD~' "${_target_dir}"
+ git commit \
+ --signoff \
+ --message "kernel/${platform_name}: Restore kernel files for v${source_version}" \
+ --message "$(printf "This is an automatically generated commit which aids following Kernel patch\nhistory, as git will see the move and copy as a rename thus defeating the\npurpose.\n\nFor the original discussion see:\nhttps://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html")"
+ git switch "${initial_branch:?Unable to switch back to original branch. Quitting.}"
+ GIT_EDITOR=true git merge --no-ff '__openwrt_kernel_files_mover'
+ git branch --delete '__openwrt_kernel_files_mover'
+ echo "Deleting merge commit ($(git rev-parse HEAD))."
+ git rebase HEAD~1
+
+ echo "Original commitish was '${initial_commitish}'."
+ echo 'Kernel bump complete. Remember to use `git log --follow`.'
+}
+
+check_requirements()
+{
+ for _cmd in ${REQUIRED_COMMANDS}; do
+ if ! _test_result="$(command -V "${_cmd}")"; then
+ _test_result_fail="${_test_result_fail:-}${_test_result}\n"
+ else
+ _test_result_pass="${_test_result_pass:-}${_test_result}\n"
+ fi
+ done
+
+ echo 'Available commands:'
+ # As the results contain \n, we expect these to be interpreted.
+ # shellcheck disable=SC2059
+ printf "${_test_result_pass:-none\n}"
+ echo
+ echo 'Missing commands:'
+ # shellcheck disable=SC2059
+ printf "${_test_result_fail:-none\n}"
+ echo
+
+ if [ -n "${_test_result_fail:-}" ]; then
+ echo 'Command test failed, missing programs.'
+ test_failed=1
+ fi
+}
+
+main()
+{
+ while getopts 'chp:r:s:t:' _options; do
+ case "${_options}" in
+ 'c')
+ config_only='true'
+ ;;
+ 'h')
+ usage
+ exit 0
+ ;;
+ 'p')
+ platform_name="${OPTARG}"
+ ;;
+ 'r')
+ subtarget_names="${OPTARG}"
+ ;;
+ 's')
+ source_version="${OPTARG}"
+ ;;
+ 't')
+ target_version="${OPTARG}"
+ ;;
+ ':')
+ e_err "Option -${OPTARG} requires an argument."
+ exit 1
+ ;;
+ *)
+ e_err "Invalid option: -${OPTARG}"
+ exit 1
+ ;;
+ esac
+ done
+ shift "$((OPTIND - 1))"
+
+ platform_name="${platform_name:-${PLATFORM_NAME:-}}"
+ subtarget_names="${subtarget_names:-${SUBTARGET_NAMES:-}}"
+ source_version="${source_version:-${SOURCE_VERSION:-}}"
+ target_version="${target_version:-${TARGET_VERSION:-}}"
+
+ if [ -z "${source_version:-}" ] || [ -z "${target_version:-}" ]; then
+ e_err "Source (${source_version:-missing source version}) and target (${target_version:-missing target version}) versions need to be defined."
+ echo
+ usage
+ exit 1
+ fi
+
+ check_requirements
+
+ init
+ bump_kernel
+ cleanup
+}
+
+main "${@}"
+
+exit 0