#!/bin/bash
# I, Ian Kelling, follow the GNU license recommendations at
# https://www.gnu.org/licenses/license-recommendations.en.html. They
# recommend that small programs, < 300 lines, be licensed under the
# Apache License 2.0. This file contains or is part of one or more small
# programs. If a small program grows beyond 300 lines, I plan to switch
# its license to GPL.

# Copyright 2024 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.



# usage: HOST [mount-latest-subvol args]

set -e; . /usr/local/lib/bash-bear; set +e

this_file="$(readlink -f -- "${BASH_SOURCE[0]}")"
readonly this_file script_dir="${this_file%/*}"

if (( ! $# )); then
  echo "mount-latest-remote: error: a host argument"
  exit 1
fi

tg="$1"
shift

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

ecode=0

# exit code run
er() {
  local ret=0
  "$@" || ret=$?
  if (( ret )); then
    echo "$0: failed command: $*"
  fi
  if (( ret > ecode )); then
    ecode=$ret
  fi
}
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/bash-bear "root@$rsynctg:/usr/local" ||:
# note: this can hang if we have an old nfs mount.
er ssh root@$tg timeout -s 9 600 /usr/local/bin/mount-latest-subvol "$@"

exit $ecode