Bash function to restart Docker (MacOS only)

restart-docker.sh

#!/usr/bin/env bash
# This is meant to be appended to .bash_aliases or .zsh_aliases
#
# The `docker-restart` command allows the user to restart Docker and wait for it
# to be ready before executing the next command.

function docker-is-ready() {
    timestamp=$(date +%s)
    while [[ -z "$(! docker stats --no-stream 2> /dev/null)" ]]
    do
        sleep 1
        now=$(date +%s)
        echo -n -e "\r"$(($now - $timestamp))"s"
        # In my system, over 80 seconds means problems somewhere else.
    done
}

function docker-restart() {
  echo "[1/3] Stopping Docker..."
  osascript -e 'quit app "Docker"'
  sleep 5

  echo "[2/3] Starting Docker..."
  open -a Docker
  sleep 1

  echo "[3/3] Waiting for ready state..."
  docker-is-ready
  
  echo "\nDone."
}