iankelling.org Git - distro-setup/blob - prof-remote

   1 #!/bin/bash
   2 # I, Ian Kelling, follow the GNU license recommendations at
   3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
   4 # recommend that small programs, < 300 lines, be licensed under the
   5 # Apache License 2.0. This file contains or is part of one or more small
   6 # programs. If a small program grows beyond 300 lines, I plan to switch
   7 # its license to GPL.
   8
   9 # Copyright 2024 Ian Kelling
  10
  11 # Licensed under the Apache License, Version 2.0 (the "License");
  12 # you may not use this file except in compliance with the License.
  13 # You may obtain a copy of the License at
  14
  15 #     http://www.apache.org/licenses/LICENSE-2.0
  16
  17 # Unless required by applicable law or agreed to in writing, software
  18 # distributed under the License is distributed on an "AS IS" BASIS,
  19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20 # See the License for the specific language governing permissions and
  21 # limitations under the License.
  22
  23
  24
  25 set -e; . /usr/local/lib/bash-bear; set +e
  26
  27 remote=$1
  28 fastcon=0
  29 while true; do
  30   start=$EPOCHSECONDS
  31   if ! ssh-add -l | grep SHA256:YEhwH5u+wkqkSl/dCq8rFebi2qz7Os3RmIWPxMg13eA &>/dev/null; then
  32     ssh -n $remote
  33   fi
  34   # -n or else it competes with the other ssh for reading stdin.
  35   ssh -n $remote prof-tail | prof-notify &
  36   ssh -t $remote screen -Dr -S profanity ||:
  37   builtin kill %% &> /dev/null ||:
  38   if (( EPOCHSECONDS > start + 600 )); then
  39     fastcon=0
  40   fi
  41   # we try to reconnect quickly for a while (just once as I write this),
  42   # then try to reconnect slowly.
  43   if (( fastcon < 1 )); then
  44     echo "waiting 10. any key to cancel"
  45     read -rsN1 -t 10 ||:
  46     fastcon=$((fastcon+1))
  47   else
  48     echo "waiting 120. any key to cancel"
  49     # like sleep but stop on any input
  50     read -rsN1 -t 120 ||:
  51   fi
  52 done