ba40f273f6
* Make it ISO9660 friendly (extra dot "." is replaced by "_") * Was used when support both .fs.sfs and .sfs
497 lines
15 KiB
Bash
Executable File
497 lines
15 KiB
Bash
Executable File
#!/bin/bash
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set -e -u
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export LANG=C
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app_name=${0##*/}
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arch=$(uname -m)
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pkg_list=""
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run_cmd=""
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quiet="y"
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pacman_conf="/etc/pacman.conf"
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export iso_label="ARCH_$(date +%Y%m)"
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iso_publisher="Arch Linux <http://www.archlinux.org>"
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iso_application="Arch Linux Live/Rescue CD"
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install_dir="arch"
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work_dir="work"
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out_dir="out"
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sfs_comp="xz"
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# Show an INFO message
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# $1: message string
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_msg_info() {
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local _msg="${1}"
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echo "[mkarchiso] INFO: ${_msg}"
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}
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# Show an ERROR message then exit with status
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# $1: message string
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# $2: exit code number (with 0 does not exit)
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_msg_error() {
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local _msg="${1}"
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local _error=${2}
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echo
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echo "[mkarchiso] ERROR: ${_msg}"
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echo
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if [[ ${_error} -gt 0 ]]; then
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exit ${_error}
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fi
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}
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# Show space usage similar to df, but better formatted.
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# $1: mount-point or mounted device.
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_show_space_usage () {
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local _where="${1}"
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local _fs _total _used _avail _pct_u=0 _mnt
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read _fs _total _used _avail _pct_u _mnt < <(df -m "${_where}" | tail -1) &> /dev/null
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_msg_info "Total: ${_total} MiB (100%) | Used: ${_used} MiB (${_pct_u}) | Avail: ${_avail} MiB ($((100 - ${_pct_u%\%}))%)"
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}
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_chroot_init() {
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if [[ -f "${work_dir}/mkarchiso.init" ]]; then
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_msg_info "Initial enviroment already installed, skipping."
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else
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mkdir -p ${work_dir}/airootfs
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_pacman "base syslinux"
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: > "${work_dir}/mkarchiso.init"
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fi
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}
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_chroot_run() {
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eval arch-chroot ${work_dir}/airootfs "${run_cmd}"
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}
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# Mount a filesystem (trap signals in case of error for unmounting it
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# $1: source image
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# $2: mount-point
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_mount_fs() {
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local _src="${1}"
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local _dst="${2}"
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trap "_umount_fs ${_src}" EXIT HUP INT TERM
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mkdir -p "${_dst}"
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_msg_info "Mounting '${_src}' on '${_dst}'"
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mount "${_src}" "${_dst}"
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_show_space_usage "${_dst}"
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}
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# Unmount a filesystem (and untrap signals)
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# $1: mount-point or device/image
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_umount_fs() {
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local _dst="${1}"
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_show_space_usage "${_dst}"
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_msg_info "Unmounting '${_dst}'"
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umount "${_dst}"
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rmdir "${_dst}"
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trap - EXIT HUP INT TERM
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}
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# Compare if a file/directory (source) is newer than other file (target)
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# $1: source file/directory
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# $2: target file
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# return: 0 if target does not exists or if target is older than source.
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# 1 if target is newer than source
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_is_directory_changed() {
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local _src="${1}"
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local _dst="${2}"
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if [ -e "${_dst}" ]; then
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if [[ $(find ${_src} -newer ${_dst} | wc -l) -gt 0 ]]; then
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_msg_info "Target '${_dst}' is older than '${_src}', updating."
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rm -f "${_dst}"
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return 0
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else
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_msg_info "Target '${_dst}' is up to date with '${_src}', skipping."
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return 1
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fi
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else
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_msg_info "Target '${_dst}' does not exist, making it from '${_src}'"
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return 0
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fi
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}
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# Show help usage, with an exit status.
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# $1: exit status number.
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_usage ()
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{
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echo "usage ${app_name} [options] command <command options>"
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echo " general options:"
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echo " -p PACKAGE(S) Package(s) to install, can be used multiple times"
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echo " -r <command> Run <command> inside airootfs"
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echo " -C <file> Config file for pacman."
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echo " Default: '${pacman_conf}'"
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echo " -L <label> Set a label for the disk"
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echo " Default: '${iso_label}'"
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echo " -P <publisher> Set a publisher for the disk"
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echo " Default: '${iso_publisher}'"
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echo " -A <application> Set an application name for the disk"
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echo " Default: '${iso_application}'"
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echo " -D <install_dir> Set an install_dir. All files will by located here."
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echo " Default: '${install_dir}'"
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echo " NOTE: Max 8 characters, use only [a-z0-9]"
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echo " -w <work_dir> Set the working directory"
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echo " Default: '${work_dir}'"
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echo " -o <out_dir> Set the output directory"
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echo " Default: '${out_dir}'"
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echo " -c <comp_type> Set SquashFS compression type (gzip, lzma, lzo, xz)"
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echo " Default: '${sfs_comp}'"
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echo " -v Enable verbose output"
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echo " -h This message"
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echo " commands:"
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echo " init"
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echo " Make base layout and install base group"
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echo " install"
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echo " Install all specified packages (-p)"
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echo " run"
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echo " run command specified by -r"
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echo " prepare"
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echo " build all images"
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echo " checksum"
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echo " make a checksum.md5 for self-test"
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echo " pkglist"
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echo " make a pkglist.txt of packages installed on airootfs"
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echo " iso <image name>"
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echo " build an iso image from the working dir"
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exit ${1}
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}
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# Shows configuration according to command mode.
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# $1: init | install | run | prepare | checksum | iso
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_show_config () {
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local _mode="$1"
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echo
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_msg_info "Configuration settings"
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_msg_info " Command: ${command_name}"
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_msg_info " Architecture: ${arch}"
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_msg_info " Working directory: ${work_dir}"
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_msg_info " Installation directory: ${install_dir}"
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case "${_mode}" in
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init)
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_msg_info " Pacman config file: ${pacman_conf}"
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;;
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install)
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_msg_info " Pacman config file: ${pacman_conf}"
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_msg_info " Packages: ${pkg_list}"
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;;
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run)
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_msg_info " Run command: ${run_cmd}"
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;;
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prepare)
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;;
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checksum)
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;;
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pkglist)
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;;
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iso)
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_msg_info " Image name: ${img_name}"
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_msg_info " Disk label: ${iso_label}"
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_msg_info " Disk publisher: ${iso_publisher}"
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_msg_info " Disk application: ${iso_application}"
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;;
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esac
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echo
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}
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# Install desired packages to airootfs
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_pacman ()
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{
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_msg_info "Installing packages to '${work_dir}/airootfs/'..."
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if [[ "${quiet}" = "y" ]]; then
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pacstrap -C "${pacman_conf}" -c -d -G -M "${work_dir}/airootfs" $* &> /dev/null
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else
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pacstrap -C "${pacman_conf}" -c -d -G -M "${work_dir}/airootfs" $*
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fi
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_msg_info "Packages installed successfully!"
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}
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# Cleanup airootfs
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_cleanup () {
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_msg_info "Cleaning up what we can on airootfs..."
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# Delete initcpio image(s)
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if [[ -d "${work_dir}/airootfs/boot" ]]; then
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find "${work_dir}/airootfs/boot" -type f -name '*.img' -delete
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fi
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# Delete kernel(s)
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if [[ -d "${work_dir}/airootfs/boot" ]]; then
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find "${work_dir}/airootfs/boot" -type f -name 'vmlinuz*' -delete
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fi
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# Delete pacman database sync cache files (*.tar.gz)
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if [[ -d "${work_dir}/airootfs/var/lib/pacman" ]]; then
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find "${work_dir}/airootfs/var/lib/pacman" -maxdepth 1 -type f -delete
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fi
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# Delete pacman database sync cache
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if [[ -d "${work_dir}/airootfs/var/lib/pacman/sync" ]]; then
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find "${work_dir}/airootfs/var/lib/pacman/sync" -delete
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fi
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# Delete pacman package cache
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if [[ -d "${work_dir}/airootfs/var/cache/pacman/pkg" ]]; then
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find "${work_dir}/airootfs/var/cache/pacman/pkg" -type f -delete
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fi
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# Delete all log files, keeps empty dirs.
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if [[ -d "${work_dir}/airootfs/var/log" ]]; then
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find "${work_dir}/airootfs/var/log" -type f -delete
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fi
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# Delete all temporary files and dirs
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if [[ -d "${work_dir}/airootfs/var/tmp" ]]; then
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find "${work_dir}/airootfs/var/tmp" -mindepth 1 -delete
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fi
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# Delete package pacman related files.
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find "${work_dir}" \( -name "*.pacnew" -o -name "*.pacsave" -o -name "*.pacorig" \) -delete
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_msg_info "Done!"
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}
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# Makes a SquashFS filesystem image of file/directory passes as argument with desired compression.
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# $1: Source file/directory
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_mksfs () {
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local _src="${1}"
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if [[ ! -e "${work_dir}/${_src}" ]]; then
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_msg_error "The path '${work_dir}/${_src}' does not exist" 1
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fi
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local _sfs_img="${work_dir}/${_src}.sfs"
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_msg_info "Creating SquashFS image for '${work_dir}/${_src}', This may take some time..."
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local _seconds=${SECONDS}
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if [[ "${quiet}" = "y" ]]; then
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mksquashfs "${work_dir}/${_src}" "${_sfs_img}" -noappend -comp "${sfs_comp}" -no-progress &> /dev/null
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else
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mksquashfs "${work_dir}/${_src}" "${_sfs_img}" -noappend -comp "${sfs_comp}" -no-progress
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fi
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_seconds=$((SECONDS - _seconds))
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printf "[mkarchiso] INFO: Image creation done in %02d:%02d minutes\n" $((_seconds / 60)) $((_seconds % 60))
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}
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# Makes a filesystem from a source directory.
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# $1: Source directory
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_mkfs () {
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local _src="${1}"
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local _fs_src="${work_dir}/${_src}"
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local _fs_img="${work_dir}/${_src}.img"
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if [[ ! -e "${_fs_src}" ]]; then
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_msg_error "The path '${_fs_src}' does not exist" 1
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fi
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_msg_info "Creating ext4 image of 32GiB..."
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rm -f "${_fs_img}"
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truncate -s 32G "${_fs_img}"
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local _qflag=""
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if [[ ${quiet} == "y" ]]; then
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_qflag="-q"
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fi
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mkfs.ext4 ${_qflag} -O ^has_journal -E lazy_itable_init=0 -m 0 -F "${_fs_img}"
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tune2fs -c 0 -i 0 "${_fs_img}" &> /dev/null
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_msg_info "Done!"
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_mount_fs "${_fs_img}" "${work_dir}/mnt/${_src}"
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_msg_info "Copying '${_fs_src}/' to '${work_dir}/mnt/${_src}/'..."
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cp -aT "${_fs_src}/" "${work_dir}/mnt/${_src}/"
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_msg_info "Done!"
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_umount_fs "${work_dir}/mnt/${_src}"
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}
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command_checksum () {
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_show_config checksum
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local _chk_arch
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for _chk_arch in i686 x86_64; do
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if _is_directory_changed "${work_dir}/iso/${install_dir}" "${work_dir}/iso/${install_dir}/checksum.${_chk_arch}.md5"; then
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_msg_info "Creating checksum file for self-test (${_chk_arch})..."
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cd "${work_dir}/iso/${install_dir}"
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if [[ -d "${_chk_arch}" ]]; then
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find ${_chk_arch} -type f -print0 | xargs -0 md5sum > checksum.${_chk_arch}.md5
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fi
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cd ${OLDPWD}
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_msg_info "Done!"
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fi
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done
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}
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command_pkglist () {
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_show_config pkglist
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if _is_directory_changed "${work_dir}/airootfs/var/lib/pacman/local" "${work_dir}/iso/${install_dir}/pkglist.${arch}.txt"; then
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_msg_info "Creating a list of installed packages on live-enviroment..."
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pacman -Sl -r "${work_dir}/airootfs" --config "${pacman_conf}" | \
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awk '/\[installed\]$/ {print $1 "/" $2 "-" $3}' > \
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"${work_dir}/iso/${install_dir}/pkglist.${arch}.txt"
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_msg_info "Done!"
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fi
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}
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# Create an ISO9660 filesystem from "iso" directory.
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command_iso () {
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local _iso_efi_boot_args=""
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if [[ ! -f "${work_dir}/iso/isolinux/isolinux.bin" ]]; then
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_msg_error "The file '${work_dir}/iso/isolinux/isolinux.bin' does not exist." 1
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fi
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if [[ ! -f "${work_dir}/iso/isolinux/isohdpfx.bin" ]]; then
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_msg_error "The file '${work_dir}/iso/isolinux/isohdpfx.bin' does not exist." 1
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fi
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# If exists, add an EFI "El Torito" boot image (FAT filesystem) to ISO-9660 image.
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if [[ -f "${work_dir}/iso/EFI/archiso/efiboot.img" ]]; then
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_iso_efi_boot_args="-eltorito-alt-boot
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-e EFI/archiso/efiboot.img
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-no-emul-boot
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-isohybrid-gpt-basdat"
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fi
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_show_config iso
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if _is_directory_changed "${work_dir}/iso" "${out_dir}/${img_name}"; then
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mkdir -p ${out_dir}
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_msg_info "Creating ISO image..."
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local _qflag=""
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if [[ ${quiet} == "y" ]]; then
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_qflag="-quiet"
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fi
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xorriso -as mkisofs ${_qflag} \
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-iso-level 3 \
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-full-iso9660-filenames \
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-volid "${iso_label}" \
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-appid "${iso_application}" \
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-publisher "${iso_publisher}" \
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-preparer "prepared by mkarchiso" \
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-eltorito-boot isolinux/isolinux.bin \
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-eltorito-catalog isolinux/boot.cat \
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-no-emul-boot -boot-load-size 4 -boot-info-table \
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-isohybrid-mbr ${work_dir}/iso/isolinux/isohdpfx.bin \
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${_iso_efi_boot_args} \
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-output "${out_dir}/${img_name}" \
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"${work_dir}/iso/"
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_msg_info "Done! | $(ls -sh ${out_dir}/${img_name})"
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fi
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}
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# create airootfs.sfs filesystem, and push it in "iso" directory.
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command_prepare () {
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_show_config prepare
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_cleanup
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local _src="${work_dir}/airootfs"
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local _dst="${work_dir}/iso/${install_dir}/${arch}"
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mkdir -p "${_dst}"
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if _is_directory_changed "${_src}" "${_dst}/airootfs.sfs"; then
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_mkfs airootfs
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_mksfs airootfs.img
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mv "${_src}.sfs" "${_dst}"
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rm "${_src}.img"
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fi
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}
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# Install packages on airootfs.
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# A basic check to avoid double execution/reinstallation is done via hashing package names.
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command_install () {
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if [[ ! -f "${pacman_conf}" ]]; then
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_msg_error "Pacman config file '${pacman_conf}' does not exist" 1
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fi
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#trim spaces
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pkg_list="$(echo ${pkg_list})"
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if [[ -z ${pkg_list} ]]; then
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_msg_error "Packages must be specified" 0
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_usage 1
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fi
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_show_config install
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local _pkg_list_hash
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_pkg_list_hash=$(echo ${pkg_list} | sort -u | md5sum | cut -c1-32)
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if [[ -f "${work_dir}/install.${_pkg_list_hash}" ]]; then
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_msg_info "These packages are already installed, skipping."
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else
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_pacman "${pkg_list}"
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: > "${work_dir}/install.${_pkg_list_hash}"
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fi
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}
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command_init() {
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_show_config init
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_chroot_init
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}
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command_run() {
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_show_config run
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_chroot_run
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}
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if [[ ${EUID} -ne 0 ]]; then
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_msg_error "This script must be run as root." 1
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fi
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while getopts 'p:r:C:L:P:A:D:w:o:c:vh' arg; do
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case "${arg}" in
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p) pkg_list="${pkg_list} ${OPTARG}" ;;
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r) run_cmd="${OPTARG}" ;;
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C) pacman_conf="${OPTARG}" ;;
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L) iso_label="${OPTARG}" ;;
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P) iso_publisher="${OPTARG}" ;;
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A) iso_application="${OPTARG}" ;;
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D) install_dir="${OPTARG}" ;;
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w) work_dir="${OPTARG}" ;;
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o) out_dir="${OPTARG}" ;;
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c) sfs_comp="${OPTARG}" ;;
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v) quiet="n" ;;
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h|?) _usage 0 ;;
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*)
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_msg_error "Invalid argument '${arg}'" 0
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_usage 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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if [[ $# -lt 1 ]]; then
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_msg_error "No command specified" 0
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_usage 1
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fi
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command_name="${1}"
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case "${command_name}" in
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init)
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command_init
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;;
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install)
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command_install
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;;
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run)
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command_run
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;;
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prepare)
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command_prepare
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;;
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checksum)
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command_checksum
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;;
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pkglist)
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command_pkglist
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;;
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iso)
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if [[ $# -lt 2 ]]; then
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_msg_error "No image specified" 0
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_usage 1
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fi
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img_name="${2}"
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command_iso
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;;
|
|
*)
|
|
_msg_error "Invalid command name '${command_name}'" 0
|
|
_usage 1
|
|
;;
|
|
esac
|
|
|
|
# vim:ts=4:sw=4:et:
|