Créer un miroir privé des paquets Arch Linux sur un Synology DS218j

curl -s "https://www.archlinux.org/mirrorlist/?country=FR&country=NL&country=BE&country=GE&protocol=https&use_mirror_status=on" | sed -e 's/^#Server/Server/' -e '/^#/d' | rankmirrors -n 5 -

#!/bin/bash
#
########
#
# Copyright © 2014-2019 Florian Pritz <bluewind@xinu.at>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
########
#
# This is a simple mirroring script. To save bandwidth it first checks a
# timestamp via HTTP and only runs rsync when the timestamp differs from the
# local copy. As of 2016, a single rsync run without changes transfers roughly
# 6MiB of data which adds up to roughly 250GiB of traffic per month when rsync
# is run every minute. Performing a simple check via HTTP first can thus save a
# lot of traffic.

# Directory where the repo is stored locally. Example: /srv/repo
target="/volume1/archlinux/repo"

# Directory where files are downloaded to before being moved in place.
# This should be on the same filesystem as $target, but not a subdirectory of $target.
# Example: /srv/tmp
tmp="/volume1/archlinux/tmp"

# Lockfile path
lock="/volume1/archlinux/syncrepo.lck"

# If you want to limit the bandwidth used by rsync set this.
# Use 0 to disable the limit.
# The default unit is KiB (see man rsync /--bwlimit for more)
bwlimit=0

# The source URL of the mirror you want to sync from.
# If you are a tier 1 mirror use rsync.archlinux.org, for example like this:
# rsync://rsync.archlinux.org/ftp_tier1
# Otherwise chose a tier 1 mirror from this list and use its rsync URL:
# https://www.archlinux.org/mirrors/
source_url='rsync://archlinux.mailtunnel.eu/archlinux/'

# An HTTP(S) URL pointing to the 'lastupdate' file on your chosen mirror.
# If you are a tier 1 mirror use: http://rsync.archlinux.org/lastupdate
# Otherwise use the HTTP(S) URL from your chosen mirror.
lastupdate_url='https://archlinux.mailtunnel.eu/lastupdate'


#### END CONFIG

[ ! -d "${target}" ] && mkdir -p "${target}"
[ ! -d "${tmp}" ] && mkdir -p "${tmp}"

exec 9>"${lock}"
flock -n 9 || exit

rsync_cmd() {
    local -a cmd=(rsync -rtlH --safe-links --delete-after ${VERBOSE} "--timeout=600" "--contimeout=60" -p --delay-updates --no-motd "--temp-dir=${tmp}")

    if stty &>/dev/null; then
        cmd+=(-h -v --progress)
    else
        cmd+=(--quiet)
    fi

    if ((bwlimit>0)); then
        cmd+=("--bwlimit=$bwlimit")
    fi

    "${cmd[@]}" "$@"
}

# if we are called without a tty (cronjob) only run when there are changes
if ! tty -s && [[ -f "$target/lastupdate" ]] && diff -b <(curl -Ls "$lastupdate_url") "$target/lastupdate" >/dev/null; then
    # keep lastsync file in sync for statistics generated by the Arch Linux website
    rsync_cmd "$source_url/lastsync" "$target/lastsync"
    exit 0
fi

rsync_cmd --exclude='*.links.tar.gz*' --exclude='/other' --exclude='/sources' --exclude='/iso' "${source_url}" "${target}"

#echo "Last sync was $(date -d @$(cat ${target}/lastsync))"

0   5   *   *   *   root    bash /volume1/archlinux/syncrepo.sh

Server = http://nas:9080/$repo/os/$arch
#Server = http://192.168.1.2:9080/$repo/os/$arch ou utilisez directement l'ip du NAS si l'url ci-dessus ne fonctionne pas
Server = ...