Files
infix/utils/kernel-refresh.sh
T
Joachim Wiberg 55632eebaa utils: update usage text with example, add -f
- Update usage text for readability, add example
 - Reindent getopts case and add -h
 - Allow 'git rm -f' to remove already staged patches

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2025-04-07 06:06:42 +02:00

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#!/bin/bash
usage()
{
cat <<EOF
Synchronize patches/linux/\$TAG with changes from a kernel GIT tree.
Usage:
$0 -k kernel-dir -o old-version [-t kernel-tag] [-p patch-dir] [-d defconfig-dir]
Options:
-h This help text
-k kernel-dir Path to kernel tree
-o old-version Version to be replaced by new kernel version
-t kernel-tag Base tag from which to generate patches.
Default: "v" + \$BR2_LINUX_KERNEL_VERSION
-p patch-dir Path to kernel patches directory
Default: \$BR2_EXTERNAL_INFIX_PATH + "/patches/linux/\$kernel-tag"
-d defconfig-dir Path to defconfig
Default: \$BR2_EXTERNAL_INFIX_PATH + "/configs"
Example:
cd infix/output
ln -s ../local.mk # Set LINUX_OVERRIDE_SRCDIR to git tree, e.g., ~/src/linux
../utils/kernel-refresh.sh -k ~/src/linux -o 6.12.21 -t v6.12.21 \\
-p ~/src/x-misc/patches/linux/6.12.21
EOF
}
getconfig()
{
[ -f .config ] || return 1
grep "$1=" .config | sed -e "s/$1=\"\([^\"]\+\)\"/\1/"
}
if [ $# -lt 1 ]; then
usage
exit 1
fi
while getopts "hk:o:p:d:t:" flag; do
case "${flag}" in
h) usage; exit 0;;
k) KERNEL_DIR=${OPTARG};;
t) KERNEL_TAG=${OPTARG};;
o) OLD_VER=${OPTARG};;
p) PATCH_DIR=${OPTARG};;
d) DEFCONFIG_DIR=${OPTARG};;
*) exit 1;;
esac
done
if ! [ "$KERNEL_TAG" ]; then
ixkver=$(getconfig BR2_LINUX_KERNEL_VERSION)
[ "$ixkver" ] && KERNEL_TAG="v$ixkver"
else
ixkver=${KERNEL_TAG#v}
fi
if ! [ "$KERNEL_TAG" ]; then
echo "Kernel tag was not supplied, and could not be inferred" >&2
usage
exit 1
fi
NEW_VER=${KERNEL_TAG#v}
if ! [ "$PATCH_DIR" ]; then
ixdir=$(getconfig BR2_EXTERNAL_INFIX_PATH)
[ "$ixdir" ] && PATCH_DIR="$ixdir/patches/linux/$NEW_VER"
fi
if ! [ "$PATCH_DIR" ]; then
echo "Patch directory was not supplied, and could not be inferred" >&2
usage
exit 1
fi
if ! [ "$DEFCONFIG_DIR" ]; then
ixdir=$(getconfig BR2_EXTERNAL_INFIX_PATH)
DEFCONFIG_DIR=$ixdir/configs
fi
KERNEL_DIR=$(readlink -f $KERNEL_DIR)
PATCH_DIR=$(readlink -f $PATCH_DIR)
DEFCONFIG_DIR=$(readlink -f $DEFCONFIG_DIR)
git ls-files --error-unmatch $PATCH_DIR 1>/dev/null 2>&1 && git -C $PATCH_DIR rm -f *.patch
git -C $KERNEL_DIR format-patch -o $PATCH_DIR $KERNEL_TAG..HEAD
git -C $PATCH_DIR add *.patch
find "$DEFCONFIG_DIR" -name "*_defconfig" -exec sed -i "s/BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE=\"$OLD_VER\"/BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE=\"$NEW_VER\"/" {} \;