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148 lines
3.3 KiB
148 lines
3.3 KiB
#!/bin/sh
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set -eu
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if [ "$(id -u)" != 0 ]; then
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echo "This script needs root permissions!" 1>&2
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exit 1
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fi
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if [ "$#" -lt 1 ]; then
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echo "Usage: $0 [-a arch] [-m mirror] <chroot>" 1>&2
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exit 1
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fi
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arch="$(uname -m)"
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mirror='https://mirrors.slackware.com/slackware/slackware64-current'
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# Minimal amount of packages required to run installpkg, removepkg, upgradepkg, explodepkg and makepkg
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# All of these exist in the 'a' package set
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packages_pkgtools='
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aaa_base
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aaa_elflibs
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bash
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coreutils
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etc
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findutils
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glibc-solibs
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grep
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pkgtools
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sed
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tar
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util-linux
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which
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xz
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'
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# Minimal amount of packages required to run slackpkg without the dialog interface
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# Supporting https, gpg, and upgrade-all.
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# These exist over the 'a', 'ap', 'n' and 'l' package sets
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# ca-certificates needs to be installed after openssl for the doinst.sh to run correctly
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packages_extra='
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bzip2
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diffutils
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gawk
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gnupg
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gzip
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libpsl
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libunistring
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pcre2
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slackpkg
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wget
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openssl
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ca-certificates
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'
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# Parse arguments
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while getopts "a:m:" opt; do
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case "$opt" in
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a) arch="$OPTARG" ;;
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m)
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if [ -d "$OPTARG" ]; then
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mirror="$(realpath "$OPTARG")"
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else
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mirror="$OPTARG"
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fi
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;;
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esac
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done
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shift $(expr $OPTIND - 1)
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[ "$#" -ge 1 ] && [ "$1" = "--" ] && shift
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# Build final variables
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case "$arch" in
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x86_64)
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pkgmain='slackware64'
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;;
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*)
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pkgmain='slackware'
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;;
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esac
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initrd='isolinux/initrd.img'
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checksums='CHECKSUMS.md5'
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chroot="$(realpath "$1")"
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# Create working directory
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temp="$(mktemp -d -t "$(basename "$0")".XXXXXX)"
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cleanup() {
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if mountpoint -q "$temp/mnt/pkg"; then
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umount "$temp/mnt/pkg"
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rmdir "$temp/mnt/pkg"
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fi
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mountpoint -q "$temp/mnt" && umount "$temp/mnt"
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rm -rf "$temp"
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}
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trap 'cleanup' EXIT
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cd "$temp"
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# Function to download (or copy) a file
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get() {
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if [ -d "$mirror" ]; then
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cp "$mirror/$1" "$2"
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else
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wget "$mirror/$1" -O "$2"
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fi
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}
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# Function to verify files based on the checksums file
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check() {
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printf '%s' "$(tail +13 CHECKSUMS.md5 | grep "^[0-9a-f]* ./$1$" | cut -d ' ' -f 1) $2" | md5sum -c --quiet -
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}
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# Get the full path to a package
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package() {
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tail +13 CHECKSUMS.md5 | grep "^[0-9a-f]* ./$pkgmain/[^/]*/$1-[^-]*-[^-]*-[^-]*\.t.z$" | cut -d ' ' -f 3- | cut -c 3-
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}
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# Download checksums
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get "$checksums" CHECKSUMS.md5
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# Download installer initrd.img
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get "$initrd" initrd.img
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check "$initrd" initrd.img
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# Unpack and prepare the installer
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xz -cd initrd.img | cpio -id
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rm -f initrd.img
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mkdir -p pkg "$chroot"
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mount --bind "$chroot" mnt
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mkdir -p mnt/pkg
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mount --bind pkg mnt/pkg
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# Download packages
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for pkg in $packages_pkgtools $packages_extra; do
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path="$(package "$pkg")"
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name="$(basename "$path")"
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get "$path" "pkg/$name"
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check "$path" "pkg/$name"
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done
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for pkg in $packages_pkgtools; do echo "$(basename "$(package "$pkg")")" >> pkg/__; done
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for pkg in $packages_extra; do echo "$(basename "$(package "$pkg")")" >> pkg/_; done
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# Bootstrap pkgtools and its dependencies
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env -i chroot . sh -l -c 'while read pkg; do /sbin/installpkg --root /mnt --terse "/pkg/$pkg"; done < /pkg/__'
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# Install slackpkg and its dependencies
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env -i chroot mnt sh -l -c 'while read pkg; do /sbin/installpkg --terse "/pkg/$pkg"; done < /pkg/_'
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