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#!/bin/env bash
#
# mirrorsync - Synchronize a Rocky mirror
# By: Dennis Koerner <koerner@netzwerge.de>
#
# The latest version of this script can be found at:
# https://github.com/rocky-linux/rocky-tools
#
# Please read https://docs.rockylinux.org/guides/mirror_management/add_mirror_manager/
# for further information on setting up a Rocky mirror.
#
# Copyright (c) 2021 Rocky Enterprise Software Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# Find rsync in default path
rsync_run(){
if command -v rsync >/dev/null; then
command rsync "$@";
else
command -p rsync "$@";
fi;
}
# You can change v to q if you do not want detailed logging
# You may also add additional excludes if you don't want to provide certain
# repositories or architectures.
opts=(-avSH --exclude="*.~tmp~" --delete-delay --delay-updates)
# Please use a mirror geographically close to you for initial sync,
# or if you are hosting a private mirror (not publicly available).
#
# Note that local mirrors may be faster, and we might restrict
# access to the master in the future.
#
# A complete list of mirrors can be found at
# https://mirrors.rockylinux.org/mirrormanager/mirrors/Rocky
src1="rsync://rpms.remirepo.net/enterprise/"
src2="rsync://rpms.remirepo.net/fedora/"
# Your local path. Change to whatever fits your system.
# $mirrormodule is also used in syslog output.
mirrormodule="Remi"
dst1="/mnt/RepoSync/${mirrormodule}/enterprise"
dst2="/mnt/RepoSync/${mirrormodule}/fedora"
datefile="date"
lockfile="$0.lockfile"
logfile="$0.log"
# Check if the datefile has changed on upstream mirror
# and exit cleanly if it is still the same
checkresult1=$(rsync_run --no-motd --dry-run --out-format="%n" "${src1}/${datefile}" "${dst1}/${datefile}")
checkresult2=$(rsync_run --no-motd --dry-run --out-format="%n" "${src2}/${datefile}" "${dst2}/${datefile}")
if [[ -z "$checkresult1" && -z "$checkresult2" ]]; then
printf "%s unchanged. Not updating at %(%c)T\n" "$datefile" -1 >> "$logfile" 2>&1
logger -t rsync "Not updating ${mirrormodule}: ${datefile} unchanged."
exit 0
fi
# Check for existing lockfile to avoid multiple simultaneously running syncs
# If lockfile exists but process is dead continue anyway
if [[ -e "$lockfile" ]] && ! kill -0 "$(< "$lockfile")" 2>/dev/null; then
printf "Warning: lockfile exists but process dead, continuing.\n" >> "$logfile" 2>&1
logger -t rsync "Warning: lockfile exists but process dead, continuing with updating ${mirrormodule}."
rm -f "$lockfile"
elif [[ -e "$lockfile" ]]; then
printf "Update already in progress at %(%c)T\n" -1 >> "$logfile" 2>&1
logger -t rsync "Not updating ${mirrormodule}: already in progress."
exit 1
fi
# The actual syncing part
printf '%s\n' "$$" > "$lockfile"
printf "Started update at %(%c)T\n" -1 >> "$logfile" 2>&1
logger -t rsync "Updating ${mirrormodule}"
wget https://rpms.remirepo.net/index.html -O /mnt/RepoSync/${mirrormodule}/index.html
# Sync src1/dst1 if there are changes
if [[ -n "$checkresult1" ]]; then
rsync_run "${opts[@]}" "${src1}/" "${dst1}/" >> "$logfile" 2>&1
fi
# Sync src2/dst2 if there are changes
if [[ -n "$checkresult2" ]]; then
rsync_run "${opts[@]}" "${src2}/" "${dst2}/" >> "$logfile" 2>&1
fi
logger -t rsync "Finished updating ${mirrormodule}"
printf "End: %(%c)T\n" -1 >> "$logfile" 2>&1
rm -f "$lockfile"
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