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66 lines
2.0 KiB
66 lines
2.0 KiB
#!/bin/bash
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# Source: https://git.server-speed.net/users/flo/bin/plain/syncrepo.sh
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# as recommended in our request to become Tier 1:
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# https://bugs.archlinux.org/task/52853
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if [ $# -lt 1 ]; then
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echo "Usage: $0 local_dir"
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exit 1
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fi
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umask 022
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ADDRESS=$(cat ~/config/ADDRESS)
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# This is a simple mirroring script. To save bandwidth it first checks a
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# timestamp via HTTP and only runs rsync when the timestamp differs from the
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# local copy. As of 2016, a single rsync run without changes transfers roughly
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# 6MiB of data which adds up to roughly 250GiB of traffic per month when rsync
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# is run every minute. Performing a simple check via HTTP first can thus save a
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# lot of traffic.
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home="/home/mirror"
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target=/mirror/root/$1
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tmp="${home}/tmp"
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lock="${tmp}/mirrorsync-$1.lck"
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# NOTE: You'll probably want to change this or remove the --bwlimit setting in
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# the rsync call below
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bwlimit=4096
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# NOTE: most people reading this very likely need to change this since
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# rsync.archlinux.org requires you to be a tier 1 mirror
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source='rsync://rsync.archlinux.org/ftp_tier1'
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lastupdate_url="http://rsync.archlinux.org/lastupdate"
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[ ! -d "${target}" ] && mkdir -p "${target}"
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[ ! -d "${tmp}" ] && mkdir -p "${tmp}"
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exec 9>"${lock}"
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flock -n 9 || exit
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# if we are called without a tty (cronjob) only run when there are changes
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if ! tty -s && diff -b <(curl --interface $ADDRESS -s "$lastupdate_url") "$target/lastupdate" >/dev/null; then
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date +'%s' > "$target/lastsync"
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exit 0
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fi
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if ! stty &>/dev/null; then
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QUIET="-q"
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fi
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# this can be added into the rsync: --bwlimit=$bwlimit \
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# --exclude='/iso' \
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# --exclude='*.links.tar.gz*' \
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# --exclude='/other' \
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# --exclude='/sources' \
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rsync -rtlvH --safe-links --delete-after --progress -h ${QUIET} --timeout=600 --contimeout=60 -p \
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--delay-updates --no-motd \
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--temp-dir="${tmp}" \
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--stats \
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--log-file=$home/merlin/logs/$1.log \
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--address=$ADDRESS \
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${source} \
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"${target}"
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date +'%s' > "$target/lastsync"
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#echo "Last sync was $(date -d @$(cat ${target}/lastsync))"
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