auto-update

#!/bin/bash

set -ex

MAINLINE_KERNEL_VERSION=6.8
UBUNTU_VERSION=22.04

echo "===Starting auto-update.==="

SCRIPT=$(realpath "${0}")
SCRIPTPATH=$(dirname "${SCRIPT}")
cd "${SCRIPTPATH}"

echo "===Get current version.==="

TUXEDO_KERNEL_BRANCH=tuxedo-${MAINLINE_KERNEL_VERSION}
TUXEDO_KERNEL_BRANCH_FULL=${TUXEDO_KERNEL_BRANCH}-${UBUNTU_VERSION}

CURRENT_VERSION=$(grep --perl-regexp --only-matching --max-count 1 "(?<=^linux-meta-tuxedo-${UBUNTU_VERSION} \().*(?=\))" debian/changelog)

echo "===Checking out correct Ubuntu kernel.==="

if ! [[ ${LINUX_REPO_URL} ]]; then
    LINUX_REPO_URL="https://github.com/tuxedocomputers/linux.git"
fi
rm -rf ../linux-for-linux-meta
git clone --branch ${TUXEDO_KERNEL_BRANCH_FULL} ${LINUX_REPO_URL} ../linux-for-linux-meta
git -C ../linux-for-linux-meta fetch --tags

if [[ ${1} ]]; then
    NEW_TAG=${1}
else
    NEW_TAG=$(git -C ../linux-for-linux-meta describe --abbrev=0)
fi
NEW_VERSION=${NEW_TAG#Ubuntu-"${TUXEDO_KERNEL_BRANCH}"-}

if [[ ${CURRENT_VERSION} == "${NEW_VERSION}" ]]; then
    echo "===Version already up to date. Exiting.==="
    exit
fi

git -C ../linux-for-linux-meta checkout "${NEW_TAG}"

echo "===Run update script.==="
./update-version --commit ../linux-for-linux-meta

echo "===Done.==="