#!/bin/bash

sleep_secs=120

do_backup() {
  for host in $(cat hostlist); do
    echo $host
    target=backups/$host/$(date --iso-8601=seconds)
    mkdir -p $target
    rsync -e "ssh -F local.ssh_config" --recursive --links --perms --times --verbose --prune-empty-dirs --exclude ".*" --exclude "/snap" --exclude "Screenshot from *" --max-size 200K $host:/home/contestant/ $target
  done
}

if [ "$1" == timer ]; then
  while true; do
    do_backup
    echo
    echo "Finished, next backup in $sleep_secs seconds."
    echo
    echo
    sleep $sleep_secs
  done
else
  do_backup
fi