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Alert yourself after a long-running task in terminal

Alert yourself after a long-running task in terminal

I often find myself in a situation when I run a long task in terminal and if it takes more than a few seconds then I get distracted. This little snippet helps me get back to what I was doing in the terminal by alerting me via a sound message and also a macOS notification.

See the instructions below:

Step 1. Install terminal-notifier:

brew install terminal-notifier

Step 2. Add the following code to .bash_profile:

# Open ~/.bash_profile and add these functions:

function timer_start {
  timer=${timer:-$SECONDS}
}

# this makes bash run timer_start every time you run a command
trap 'timer_start' DEBUG

function notify_when_done {
  timer_show=$(($SECONDS - $timer))
  unset timer
  # 10 is the notification threshold in seconds
  if (( ${timer_show} > 10 )); then
    # modify this section to fit your needs:
    say "Done with task"
    terminal-notifier -title "Terminal" -message "Done with task! Exit status: $? Time: ${timer_show}s"
  fi
}

# this makes bash run notify_when_done command after every command
if [ "$PROMPT_COMMAND" == "" ]; then
  PROMPT_COMMAND="notify_when_done"
else
  PROMPT_COMMAND="$PROMPT_COMMAND; notify_when_done"
fi

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