iankelling.org Git - distro-setup/blob - mount-latest-remote

   1 #!/bin/bash
   2 # Copyright (C) 2016 Ian Kelling
   3
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at
   7
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16
  17 # usage: HOST [mount-latest-subvol args]
  18
  19 set -e; . /usr/local/lib/bash-bear; set +e
  20
  21 script_dir=$(dirname $(readlink -f "$BASH_SOURCE"))
  22
  23 if (( ! $# )); then
  24   echo "mount-latest-remote: error: a host argument"
  25   exit 1
  26 fi
  27
  28 tg="$1"
  29 shift
  30
  31 $script_dir/install-my-scripts
  32 cd /usr/local
  33
  34 ecode=0
  35
  36 # exit code run
  37 er() {
  38   local ret=0
  39   "$@" || ret=$?
  40   if (( ret )); then
  41     echo "$0: failed command: $*"
  42   fi
  43   if (( ret > ecode )); then
  44     ecode=$ret
  45   fi
  46 }
  47 rsynctg=$tg
  48 if [[ $tg == *:* ]]; then
  49   rsynctg="[$tg]"
  50 fi
  51 # R = relative, t = times, O = omit-dir-times, p = perms
  52 er rsync -RtOp bin/{mount-latest-subvol,check-subvol-stale} lib/bash-bear "root@$rsynctg:/usr/local" || continue
  53 # note: this can hang if we have an old nfs mount.
  54 er ssh root@$tg timeout -s 9 600 /usr/local/bin/mount-latest-subvol "$@"
  55
  56 exit $ecode