Alpine mirror rsync

.update-repo.sh

#!/bin/bash

# make sure we never run 2 rsync at the same time
lockfile="/tmp/alpine-mirror.lock"
if [ -z "$flock" ] ; then
	exec env flock=1 flock -n $lockfile "$0" "$@"
fi

trap "kill 0" SIGINT SIGTERM

echo "Beginning Alpine rsync..."

#src=rsync://plug-mirror.rcac.purdue.edu/alpine/
src=rsync://mirror.math.princeton.edu/pub/alpinelinux/
dest=/srv/alpine/

# keep out old versions -- here, excluding v3.0 through v3.21
# also keep out architectures we don't use
excludes='/.htaccess /edge /v3.[0-9] /v3.1[0-9] /v3.2[0-1] loongarch64/ armhf/ armv7/ s390x/ ppc64le/ riscv64/ x86/'

rsync_opts="--stats --recursive --links --hard-links --times --delay-updates --delete --delete-after --log-file=rsync.log ${rsync_opts:-}"
for path in $excludes; do
	rsync_opts="$rsync_opts --exclude=$path"
done

rsync $rsync_opts --exclude .update-repo.sh --exclude rsync.log $src $dest