#!/bin/bash
# Copyright (C) 2016 Ian Kelling

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

source /usr/local/lib/err

script_dir=$(dirname $(readlink -f "$BASH_SOURCE"))

if (( ! $# )); then
  echo "mount-latest-remote: error: expected 1 or more host arguments"
  exit 1
fi

$script_dir/install-my-scripts
cd /usr/local

ecode=0
failed_hosts=()

# exit code run
er() {
  local ret=0
  "$@" || ret=$?
  if (( ret )); then
    echo "$0: failed command: $*"
    failed_hosts+=($tg)
  fi
  if (( ret > ecode )); then
    ecode=$ret
  fi
}
for tg; do
  rsynctg=$tg
  if [[ $tg == *:* ]]; then
    rsynctg="[$tg]"
  fi
  # R = relative, t = times, O = omit-dir-times, p = perms
  er rsync -RtOp bin/{mount-latest-subvol,check-subvol-stale} lib/err "root@$rsynctg:/usr/local" || continue
  # note: this can hang if we have an old nfs mount.
  er ssh root@$tg timeout -s 9 600 /usr/local/bin/mount-latest-subvol
done

if (( $# == ${#failed_hosts[@]} )); then
  echo "$0: error: all hosts failed: $*" >&2
elif (( ${#failed_hosts[@]} )); then
  echo "$0: error: some hosts failed: ${failed_hosts[@]}" >&2
fi
exit $ecode