mirror of
https://gitlab.archlinux.org/tpowa/archboot.git
synced 2024-09-19 19:40:37 +02:00
103 lines
3 KiB
Bash
Executable file
103 lines
3 KiB
Bash
Executable file
#!/usr/bin/env bash
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# SPDX-License-Identifier: GPL-3.0-or-later
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#
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# archboot-cpio.sh - modular tool for building initramfs images
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# optimized for size and speed
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# by Tobias Powalowski <tpowa@archlinux.org>
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shopt -s extglob
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. /usr/lib/archboot/common.sh
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. /usr/lib/archboot/cpio/cpio.sh
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if [[ -z "${1}" ]]; then
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_usage
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fi
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_root_check
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while [ $# -gt 0 ]; do
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case "${1}" in
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-c) shift
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_CONFIG="${1}"
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;;
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-k) shift
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_KERNEL="${1}"
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;;
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-d) shift
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_TARGET_DIR="${1}"
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;;
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-g) shift
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[[ -d "${1}" ]] && _abort "Invalid image path -- ${1} is a directory!"
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if ! _GENERATE_IMAGE="$(readlink -f "${1}")" || [[ ! -e "${_GENERATE_IMAGE%/*}" ]]; then
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_abort "Unable to write to path!" "${1}"
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fi
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;;
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-h) _usage
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exit 0
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;;
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esac
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shift
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done
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#shellcheck disable="SC1090"
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. "${_CONFIG}" 2>"${_NO_LOG}" || _abort "Failed to read ${_CONFIG} configuration file"
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if [[ -z "${_KERNEL}" ]]; then
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echo "Trying to autodetect ${_RUNNING_ARCH} kernel..."
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[[ "${_RUNNING_ARCH}" == "x86_64" || "${_RUNNING_ARCH}" == "riscv64" ]] && _KERNEL="/usr/lib/modules/*/vmlinuz"
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[[ "${_RUNNING_ARCH}" == "aarch64" ]] && _KERNEL="/boot/Image.gz"
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fi
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# allow * in config
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#shellcheck disable=SC2116,2086
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_KERNEL="$(echo ${_KERNEL})"
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if [[ ! -f "${_KERNEL}" ]]; then
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_abort "kernel image does not exist!"
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fi
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_KERNELVERSION="$(_kver "${_KERNEL}")"
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_MODULE_DIR="/lib/modules/${_KERNELVERSION}"
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[[ -d "${_MODULE_DIR}" ]] || _abort "${_MODULE_DIR} is not a valid kernel module directory!"
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_BUILD_DIR="$(_init_rootfs "${_KERNELVERSION}" "${_TARGET_DIR}")" || exit 1
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_ROOTFS="${_TARGET_DIR:-${_BUILD_DIR}/root}"
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if [[ -n "${_GENERATE_IMAGE}" ]]; then
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echo "Starting build: ${_GENERATE_IMAGE}"
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elif [[ -n "${_TARGET_DIR}" ]]; then
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echo "Starting build directory: ${_TARGET_DIR}"
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else
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echo "Starting dry run..."
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fi
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if (( ${#_HOOKS[*]} == 0 )); then
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_abort "No hooks found in config file!"
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fi
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echo "Using kernel: ${_KERNEL}"
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echo "Detected kernel version: ${_KERNELVERSION}"
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_builtin_modules
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_HOOK_COUNT=1
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_HOOKS_END_COUNT="$(echo ${_HOOKS[@]} | wc -w)"
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if [[ "${_HOOKS_END_COUNT}" -lt 10 ]]; then
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_ADD_ZERO=""
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else
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_ADD_ZERO=1
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fi
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echo "Running ${_HOOKS_END_COUNT} hooks..."
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for i in "${_HOOKS[@]}"; do
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if [[ -n "${_ADD_ZERO}" && "${_HOOK_COUNT}" -lt 10 ]]; then
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echo "0${_HOOK_COUNT}/${_HOOKS_END_COUNT}: ${i}"
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else
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echo "${_HOOK_COUNT}/${_HOOKS_END_COUNT}: ${i}"
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fi
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_run_hook "${i}"
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_HOOK_COUNT="$((_HOOK_COUNT+1))"
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done
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_install_modules "${!_MOD_PATH[@]}"
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ldconfig -r "${_ROOTFS}" &>"${_NO_LOG}" || exit 1
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# remove /var/cache/ldconfig/aux-cache for reproducibility
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rm -f -- "${_ROOTFS}/var/cache/ldconfig/aux-cache"
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if [[ -n "${_GENERATE_IMAGE}" ]]; then
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_create_cpio "${_GENERATE_IMAGE}" "${_COMP}" || exit 1
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echo "Build complete."
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elif [[ -n "${_TARGET_DIR}" ]]; then
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echo "Build directory complete."
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else
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echo "Dry run complete."
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fi
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# vim: set ft=sh ts=4 sw=4 et:
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