notify_on_long_exec.sh

export NOTIFY_TIME=10

function timer_start {
  previous_command=$this_command
  if [ "$BASH_COMMAND" != "timer_stop" ]
  then
    this_command=$BASH_COMMAND
  fi

  timer=${timer:-$SECONDS}
}

function timer_stop {
  timer_show=$(($SECONDS - $timer))
  unset timer

  # for commands that take > NOTIFY_TIME seconds, notify me                                                                                        
  if [ $timer_show -gt $NOTIFY_TIME ]; then
    if [ $? -eq 0 ]; then
      status="Succeeded"
    else
      status="Failed"
    fi
    prompt_location="${PWD/#$HOME/\~} \$"
    title="$prompt_location $(echo $previous_command | awk '{print $1}') $status"
    terminal-notifier -title "$title" -message "$this_command" -sender "$prompt_location"
  fi
}

trap 'timer_start' DEBUG
PROMPT_COMMAND=timer_stop