255 lines
8.1 KiB
Bash
Executable File
255 lines
8.1 KiB
Bash
Executable File
#!/bin/bash
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PKGLIST=""
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QUIET="y"
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FORCE="n"
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PACCONFIG="/etc/pacman.conf"
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export LABEL="ARCH_$(date +%Y%m)"
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PUBLISHER="Arch Linux <http://www.archlinux.org>"
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APPLICATION="Arch Linux Live/Rescue CD"
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COMPRESSION="gzip"
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CREATE_DEFAULT="n"
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INSTALL_DIR="arch"
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APPNAME=$(basename "${0}")
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ARCH=$(uname -m)
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# usage: usage <exitvalue>
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usage ()
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{
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echo "usage ${APPNAME} [options] command <command options>"
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echo " general options:"
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echo " -f Force overwrite of working files/squashfs image/bootable image"
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echo " -p PACKAGE(S) Additional package(s) to install, can be used multiple times"
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echo " -C <file> Config file for pacman. Default $PACCONFIG"
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echo " -L <label> Set a label for the disk"
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echo " -P <publisher> Set a publisher for the disk"
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echo " -A <application> Set an application name for the disk"
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echo " -c <compressor> Set SquashFS compression type: gzip, lzma or lzo. Default $COMPRESSION"
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echo " NOTES:"
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echo " lzma: not officially supported yet by Linux (2.6.36)"
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echo " lzo: needs Linux >= 2.6.36"
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echo " -D <install_dir> Set an install_dir. All files will by located here on ISO (except for syslinux)"
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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 " -d Create default user directory /home/arch"
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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 " create <dir>"
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echo " create a base directory layout to work with"
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echo " includes all specified packages"
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echo " iso <dir> <image name>"
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echo " build an iso image from the working dir"
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exit $1
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}
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while getopts 'p:C:L:P:A:c:D:dfvh' arg; do
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case "${arg}" in
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p) PKGLIST="${PKGLIST} ${OPTARG}" ;;
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C) PACCONFIG="${OPTARG}" ;;
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L) LABEL="${OPTARG}" ;;
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P) PUBLISHER="${OPTARG}" ;;
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A) APPLICATION="${OPTARG}" ;;
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c) COMPRESSION="${OPTARG}" ;;
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D) INSTALL_DIR="${OPTARG}" ;;
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d) CREATE_DEFAULT="y" ;;
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f) FORCE="y" ;;
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v) QUIET="n" ;;
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h|?) usage 0 ;;
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*) echo "invalid argument '${arg}'"; usage 1 ;;
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esac
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done
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#trim spaces
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PKGLIST="$(echo $PKGLIST)"
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shift $(($OPTIND - 1))
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# do UID checking here so someone can at least get usage instructions
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if [ "$EUID" != "0" ]; then
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echo "error: This script must be run as root."
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exit 1
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fi
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if [ ! -f "$PACCONFIG" ]; then
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echo "error: pacman config file '$PACCONFIG' does not exist"
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exit 1
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fi
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command_name="${1}"
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work_dir=""
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imgname=""
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case "${command_name}" in
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create) work_dir="${2}"; imgname="none" ;;
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iso) work_dir="${2}"; imgname="${3}" ;;
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*) echo "invalid command name '${command_name}'"; usage 1 ;;
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esac
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[ "x${imgname}" = "x" ] && echo "Image name must be specified" && usage 1
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[ "x${work_dir}" = "x" ] && echo "Please specify a working directory" && usage 1
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echo "${APPNAME} : Configuration Settings"
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echo " working directory: ${work_dir}"
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echo " image name: ${imgname}"
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# usage: _pacman <packages>...
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_pacman ()
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{
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local ret
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if [ "${QUIET}" = "y" ]; then
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mkarchroot -n -C "$PACCONFIG" -f "${work_dir}/root-image" $* 2>&1 >/dev/null
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ret=$?
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else
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mkarchroot -n -C "$PACCONFIG" -f "${work_dir}/root-image" $*
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ret=$?
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fi
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# Cleanup
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find "${work_dir}" -name *.pacnew -name *.pacsave -name *.pacorig -delete
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if [ $ret -ne 0 ]; then
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exit 1
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fi
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}
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command_create () {
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echo "====> Creating working directory: ${work_dir}"
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mkdir -p "${work_dir}/iso/${INSTALL_DIR}/${ARCH}"
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mkdir -p "${work_dir}/root-image/"
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if [ "${PKGLIST}" != "" ]; then
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echo "====> Installing packages to '${work_dir}/root-image/'"
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_pacman "${PKGLIST}"
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echo "Cleaning up what we can"
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if [ -d "${work_dir}/root-image/boot/" ]; then
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# remove the initcpio images that were generated for the host system
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find "${work_dir}/root-image/boot" -name '*.img' -delete
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fi
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if [ ${CREATE_DEFAULT} == "y" ]; then
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if [ -d "${work_dir}/root-image/home/" ]; then
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echo "Creating default home directory"
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install -d -o1000 -g100 -m0755 "${work_dir}/root-image/home/arch"
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fi
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fi
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# Delete pacman database sync cache files (*.tar.gz)
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find "${work_dir}/root-image/var/lib/pacman" -maxdepth 1 -type f -delete
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# Delete pacman database sync cache
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find "${work_dir}/root-image/var/lib/pacman/sync" -delete
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# Delete pacman package cache
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find "${work_dir}/root-image/var/cache/pacman/pkg" -type f -delete
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# Delete all log files, keeps empty dirs.
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find "${work_dir}/root-image/var/log" -type f -delete
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# Delete all temporary files and dirs
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find "${work_dir}/root-image/var/tmp" -mindepth 1 -delete
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# Delete all temporary files and dirs
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find "${work_dir}/root-image/tmp" -mindepth 1 -delete
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fi
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}
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# _mksquash dirname
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_mksquash () {
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if [ ! -d "$1" ]; then
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echo "Error: '$1' is not a directory"
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return 1
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fi
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sqimg="${work_dir}/iso/${INSTALL_DIR}/${ARCH}/$(basename ${1}).sqfs"
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echo "====> Generating SquashFS image for '${1}'"
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if [ -e "${sqimg}" ]; then
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dirhaschanged=$(find ${1} -newer ${sqimg})
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if [ "${dirhaschanged}" != "" ]; then
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echo "SquashFS image '${sqimg}' is not up to date, rebuilding..."
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rm "${sqimg}"
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else
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echo "SquashFS image '${sqimg}' is up to date, skipping."
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return
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fi
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fi
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echo "Creating SquashFS image. This may take some time..."
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start=$(date +%s)
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if [ "${QUIET}" = "y" ]; then
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mksquashfs "${1}" "${sqimg}" -noappend -comp "${COMPRESSION}" >/dev/null
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else
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mksquashfs "${1}" "${sqimg}" -noappend -comp "${COMPRESSION}"
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fi
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minutes=$(echo $start $(date +%s) | awk '{ printf "%0.2f",($2-$1)/60 }')
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echo "Image creation done in $minutes minutes."
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}
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_imgcommon () {
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for d in $(find "${work_dir}" -maxdepth 1 -type d -name '[^.]*'); do
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if [ "$d" != "${work_dir}/iso" -a \
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"$(basename "$d")" != "iso" -a \
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"$d" != "${work_dir}" ]; then
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_mksquash "$d"
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fi
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done
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echo "====> Making bootable image"
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# Sanity checks
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if [ ! -d "${work_dir}/iso" ]; then
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echo "Error: '${work_dir}/iso' doesn't exist. What did you do?!"
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exit 1
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fi
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if [ ! -f "${work_dir}/iso/${INSTALL_DIR}/isomounts" ]; then
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echo "Error: the isomounts file doesn't exist. This image won't do anything"
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echo " Protecting you from yourself and erroring out here..."
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exit 1
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fi
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if [ -e "${imgname}" ]; then
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if [ "${FORCE}" = "y" ]; then
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echo "Removing existing bootable image..."
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rm -rf "${imgname}"
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else
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echo "Error: Image '${imgname}' already exists, aborting."
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exit 1
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fi
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fi
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if ! sed "s|%ARCHISO_LABEL%|${LABEL}|g;
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s|%INSTALL_DIR%|${INSTALL_DIR}|g;
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s|%ARCH%|${ARCH}|g" -i ${work_dir}/iso/syslinux/syslinux.cfg; then
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echo "Error: ${work_dir}/iso/syslinux/syslinux.cfg, doesn't exist, aborting."
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exit 1
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fi
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}
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command_iso () {
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_imgcommon
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echo "Creating ISO image..."
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qflag=""
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[ "${QUIET}" = "y" ] && qflag="-quiet"
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mkisofs ${qflag} -r -l \
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-b syslinux/isolinux.bin -c syslinux/boot.cat \
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-uid 0 -gid 0 \
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-udf -allow-limited-size -iso-level 3 \
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-input-charset utf-8 -p "prepared by mkarchiso" \
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-no-emul-boot -boot-load-size 4 -boot-info-table \
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-publisher "${PUBLISHER}" \
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-A "${APPLICATION}" \
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-V "${LABEL}" \
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-o "${imgname}" "${work_dir}/iso/"
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isohybrid "${imgname}"
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}
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# Go through the main commands in order. If 'all' was specified, then we want
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# to do everything. Start with 'install'.
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if [ "${command_name}" = "create" ]; then
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command_create
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fi
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if [ "${command_name}" = "iso" ]; then
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command_iso
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fi
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# vim:ts=4:sw=4:et:
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