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#!/bin/bash
# Imports to [libre] specific packages from upstream Arch repos.
#
# License: GPLv3
set -eu -o pipefail
shopt -s extglob globstar nullglob
source "$(librelib messages)"
setup_traps
# usage: expac_file <file.db> <expac_args>
#
# Uses the ${WORKDIR} global
expac_file() {
local dbfile=$1
local args=("${@:2}")
local reponame=${dbfile##*/}
reponame=${reponame%%.*}
mkdir -p -- "${WORKDIR}/expac/root"
cat >"${WORKDIR}/expac/pacman.conf" <<-EOT
[options]
RootDir = ${WORKDIR}/expac/root
DBPath = ${WORKDIR}/expac/root
[${reponame}]
Server = file://$(realpath --no-symlinks -- "${dbfile%/*}")
EOT
fakeroot pacman --config="${WORKDIR}/expac/pacman.conf" -Syy >/dev/null
# expac exits with non-zero on emtpy databases, so ignore errors
expac --config="${WORKDIR}/expac/pacman.conf" --sync "${args[@]}" || true
}
# usage: get_repo_rsync_dir <upstream> <tag>
get_repo_rsync_dir() {
if ! grep -q ARCHMIRROR -- "${LOCAL_CONFIG%/*}/config.local.$1"; then
msg "db-import-keyring.conf: Doesn't look like an upstream: %s" "$1" >&2
exit $EXIT_NOTCONFIGURED
fi
(
source "${LOCAL_CONFIG%/*}/config.local.$1" >&2
printf '%s\n' "${ARCHMIRROR}/$(repo=${2%-*} arch=${2##*-} envsubst '$repo $arch' <<<"$ARCHPATH")"
)
}
main() {
if [[ $# -ne 0 ]]; then
msg 'usage: %s' "${0##*/}"
exit $EXIT_INVALIDARGUMENT
fi
local config_dir
config_dir="$(dirname "$(readlink -e "$0")")"
source "${config_dir}/config" # for FTP_BASE
source "${config_dir}/db-import-keyring.conf" # for KEYRINGS
WORKDIR=$(mktemp -dt "${0##*/}.XXXXXXXXXX")
readonly WORKDIR
trap "rm -rf -- ${WORKDIR@Q}" EXIT
##############################################################
local fromspec upstream tag pkgname repo repo_rsync_dir from_pkgver to_pkgver filename
for fromspec in "${KEYRINGS[@]}"; do
msg "Processing %s" "$fromspec"
IFS=/ read -r upstream tag pkgname <<<"$fromspec"
repo_rsync_dir=$(get_repo_rsync_dir "$upstream" "$tag")
repo=${tag%-*}
# Download the upstream database
msg2 'Downloading %s' "${repo_rsync_dir}/${repo}.db"
mkdir -p -- "${WORKDIR}/dbs/${upstream}"
rsync --no-motd -mrtLH --no-p "${repo_rsync_dir}/${repo}.db" "${WORKDIR}/dbs/${upstream}/${tag}.db"
# Compare it against the libre database
from_pkgver=$(expac_file "${WORKDIR}/dbs/${upstream}/${tag}.db" '%v' "$pkgname")
to_pkgver=$(expac_file "${FTP_BASE}/libre/os/x86_64/libre.db" '%v' "$pkgname")
# And download a new keyring if necessary
if [[ "$from_pkgver" == "$to_pkgver" ]]; then
msg2 "Up to date: %s == %s" "$from_pkgver" "$to_pkgver"
else
msg2 "Updating: %s != %s" "$from_pkgver" "$to_pkgver"
filename=$(expac_file "${WORKDIR}/dbs/${upstream}/${tag}.db" '%f' "$pkgname")
mkdir -p -- "${WORKDIR}/staging/libre/"
rsync --no-motd -mrtLH --no-p "${repo_rsync_dir}/${filename}"{,.sig} "${WORKDIR}/staging/libre/"
fi
done
##############################################################
msg "Running db-update..."
STAGING=${WORKDIR}/staging db-update
}
main "$@"
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