My bedrock brl-fetch script for opensuse tumbleweed

opensuse

#!/bedrock/libexec/busybox sh
#
# OpenSUSE bootstrap support
#
#      This program is free software; you can redistribute it and/or
#      modify it under the terms of the GNU General Public License
#      version 2 as published by the Free Software Foundation.
#
# Copyright (c) 2016-2021 Rein Fernhout (LevitatingBusinessMan) <[email protected]>
#

# shellcheck source=src/slash-bedrock/libexec/brl-fetch
. /bedrock/share/common-code
trap 'fetch_abort "Unexpected error occurred."' EXIT

check_supported() {
	false
}

speed_test_url() {
	echo "/tumbleweed/repo/oss/INDEX.gz"
}

list_mirrors() {
	# https://en.opensuse.org/openSUSE:Mirrors
	# downloads from the master download server are redirect to the fastest mirror
	echo "https://download.opensuse.org"
}

brl_arch_to_distro() {
	case "${1}" in
	"x86_64") echo "x86_64" ;;
	*) abort "brl does not know how to translate arch \"${1}\" to ${distro} format" ;;
	esac
}

list_architectures() {
	# other architectures do exist and can be found at
	# https://download.opensuse.org/ports/
	cat <<EOF
x86_64
EOF
}

default_release() {
	list_releases | tail -n1
}

list_releases() {
	echo "tumbleweed"
}

fetch() {
	repo="${target_mirror}/tumbleweed/repo/oss"

	step "Downloading package information database"
	# url="$(find_link "${target_mirror}/tumbleweed/repo/oss/repodata/" "primary.xml.zst")"
	# download "${url}" "${bootstrap_dir}/primary.xml.zst"

	repomd_url="${repo}/repodata/repomd.xml"
	download "${repomd_url}" "${bootstrap_dir}/repomd.xml"

	# fetch the current primary.xml.zst filename from the repomd
	primary_location=$(sed -n 's/\s*<location href="\(.*-primary.xml.zst\)"\/>/\1/p' "${bootstrap_dir}/repomd.xml")
	primary_url="${repo}/${primary_location}"
	download "${primary_url}" "${bootstrap_dir}/primary.xml.zst"

	step "Extracting package information database"
	zstd -d "${bootstrap_dir}/primary.xml.zst"

	step "Converting distro package information database to brl format"
	rpmdb_to_brldb "${bootstrap_dir}/primary.xml" "${bootstrap_dir}/brldb"

	step "Removing blacklisted packages from brldb"
	# brldb_calculate_required_packages find the first provider for a dependency.
	# With openSUSE some packages should not be installed.
	# For instance these packages require "this-is-only-for-build-envs" which has no provider.
	# Here we remove these packages from brldb so that brldb_calculate_required_packages does not try to use them.
	find "${bootstrap_dir}/brldb" -type f -exec sed -i -e '/bash-legacybin/d' -e '/libudev-mini1/d' -e '/glib2-stage1-devel/d' {} +

	step "Calculating required bootstrap packages"
	# rpm is linked to libz.so.1
	# this isn't always installed for some reason
	bootstrap_deps="rpm filesystem zypper zlib"
	brldb_calculate_required_packages "${bootstrap_dir}/brldb" "${bootstrap_dir}/required_packages" "${bootstrap_deps}"

	step "Downloading bootstrap packages"
	checksum_downloads "${cache}/packages/" "$(awk -v"m=${repo}" '{print m"/"$0}' "${bootstrap_dir}/required_packages")"

	step "Extracting bootstrap packages"
	# This round is just to bootstrap the distro's rpm.
	# In the next step we'll use the distro's rpm to install everything properly.
	# We extract the filesystem first to ensure the directories are set up.
	bootstrap_packages="$(awk -v"d=${cache}/packages/" '{sub(/^.*\//,d);print $1}' "${bootstrap_dir}/required_packages")"
	# shellcheck disable=SC2086
	extract_rpms "${bootstrap_dir}" "${cache}/packages"/filesystem*.rpm "${cache}/packages"/*.rpm

	step "Installing bootstrap packages"
	setup_chroot "${bootstrap_dir}"
	share_cache "packages" "${bootstrap_dir}/packages"
	bootstrap_packages="$(awk -v"d=/packages/" '{sub(/^.*\//,d);print $1}' "${bootstrap_dir}/required_packages")"
	LC_ALL=C chroot "${bootstrap_dir}" rpm --noverify -i ${bootstrap_packages}

	step "Running bootstrap software"
	chroot "${bootstrap_dir:-}" zypper -nR /target-root ar http://download.opensuse.org/tumbleweed/repo/oss/ repo-oss
	chroot "${bootstrap_dir:-}" zypper -nR /target-root ar http://download.opensuse.org/update/tumbleweed/ repo-update
	chroot "${bootstrap_dir:-}" zypper -nR /target-root --gpg-auto-import-keys ref
	chroot "${bootstrap_dir:-}" zypper -nR /target-root install filesystem openSUSE-release
	chroot "${bootstrap_dir:-}" zypper -nR /target-root install -t pattern base
}