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corrupt/update-zfs.sh

Created February 4, 2021 13:27
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  1. corrupt created this gist Feb 4, 2021.
    70 changes: 70 additions & 0 deletions update-zfs.sh
    View file
    Original file line number Diff line number Diff line change
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    #!/bin/bash

    ##
    #
    # update-zfs.sh
    #
    # simple ZFS update script for arch linux
    #
    # will update zfs-linux and zfs-utils to their latest versions in the arch-zfs repo
    # will retrieve mathching kernel packages from the arch linux package archive, even
    # if newer are avaiable, if packages in arch-zfs haven't been updated yet
    #
    # author: corrupt
    # license: as-is
    # date: 2021-02-04
    # version: 0.1
    #
    ##

    #set -x

    # dependencies
    PACMAN="/usr/bin/pacman"
    GREP="/usr/bin/grep"
    CUT="/usr/bin/cut"
    DATE="/usr/bin/date"
    XARGS="/usr/bin/xargs"
    WGET="/usr/bin/wget"

    # dependency check
    DEPS=( $PACMAN $GREP $CUT $DATE $XARGS $WGET )

    for dep in ${DEPS[@]}; do
    if [ ! -f ${dep} ]; then
    echo "This script depens on ${dep}. Either install it, or adapt its path in ${0} before continuing"
    exit 1
    fi
    done

    # variable construction
    PKG_SUFX="-x86_64.pkg.tar.zst"
    PKG_DIR="/var/cache/pacman/pkg/"
    ZFS_DATE=$(${PACMAN} -Si zfs-linux | ${GREP} "Build Date" | ${CUT} -d: -f2)
    URL_DATE=$(${DATE} --date="${ZFS_DATE}" +%Y/%m/%d)
    URL_PREF="https://archive.archlinux.org/repos/${URL_DATE}/core/os/x86_64/"

    # version extraction
    ZFS_VER=$(${PACMAN} -Si zfs-linux | ${GREP} "Version" | ${CUT} -d: -f2 | ${XARGS})
    ZUT_VER=$(${PACMAN} -Si zfs-utils | ${GREP} "Version" | ${CUT} -d: -f2 | ${XARGS})
    ZFS_KVER=$(${PACMAN} -Si zfs-linux | ${GREP} "Depends On" | ${GREP} -o "linux=\S*" | ${CUT} -d= -f2 | ${XARGS})

    # package name construction
    KERNEL_PKG="linux-${ZFS_KVER}${PKG_SUFX}"
    HEADER_PKG="linux-headers-${ZFS_KVER}${PKG_SUFX}"
    ZFS_PKG="zfs-linux-${ZFS_VER}${PKG_SUFX}"
    ZUT_PKG="zfs-utils-${ZUT_VER}${PKG_SUFX}"

    # retrieve matching kernel packages
    ${WGET} -cP ${PKG_DIR} ${URL_PREF}${KERNEL_PKG}
    ${WGET} -cP ${PKG_DIR} ${URL_PREF}${KERNEL_PKG}.sig
    ${WGET} -cP ${PKG_DIR} ${URL_PREF}${HEADER_PKG}
    ${WGET} -cP ${PKG_DIR} ${URL_PREF}${HEADER_PKG}.sig

    # retrieve zfs and zfs-utils from repo
    ${PACMAN} --noconfirm -Sdw zfs-linux zfs-utils

    # install all packages with regular user interaction (pacman -U checks signatures)
    ${PACMAN} -U ${PKG_DIR}${KERNEL_PKG} ${PKG_DIR}${HEADER_PKG} ${PKG_DIR}${ZFS_PKG} ${PKG_DIR}${ZUT_PKG}

    #vim: ft=bash