go-docker

#! /bin/bash -e

command_exists () {
  type "$1" &> /dev/null ;
}

run_docker() {
  docker run \
  -it \
  --rm \
  -p "8000:8000" \
  -w "/app" \
  -v $(pwd):/app \
  $docker_image \
  "${@-bash}"
}

bold_text() {
  echo -e "\033[1m$1\033[0m"
}

green_tick() {
  echo -e "\033[1;92m✓\033[0m $1"
}

red_text() {
  echo -e "\033[0;91m$1\033[0m"
}

green_text() {
  echo -e "\033[0;92m$1\033[0m"
}

show_instructions () {
  echo "$(bold_text Usage): ./go <command>"
  echo ""
  echo "where <command> is one of:"
  echo "    $(bold_text "setup         ")   setups your development machine"
  echo "    $(bold_text "install   | i " )   installs any required dependencies"
  echo "    $(bold_text "test      | t " )   runs all your unit tests"
  echo "    $(bold_text "test:dev  | td")   runs all your unit tests and watch any changes (dev mode)"
  echo "    $(bold_text "precommit | p " )   prepares your changes to be committed"
  echo "    $(bold_text "start     | s " )   runs your local development server at http://localhost:8000"
}

echo "  _      ________      ________ _     _    _ _____    ____  _    _ _____ _      _____  "
echo " | |    |  ____\ \    / /  ____| |   | |  | |  __ \  |  _ \| |  | |_   _| |    |  __ \ "
echo " | |    | |__   \ \  / /| |__  | |   | |  | | |__) | | |_) | |  | | | | | |    | |  | |"
echo " | |    |  __|   \ \/ / |  __| | |   | |  | |  ___/  |  _ <| |  | | | | | |    | |  | |"
echo " | |____| |____   \  /  | |____| |___| |__| | |      | |_) | |__| |_| |_| |____| |__| |"
echo " |______|______|   \/   |______|______\____/|_|      |____/ \____/|_____|______|_____/ "
echo ""
echo ""

intro_message() {
  echo "It looks like this is your first time trying to run the app."
  echo "Before you start, I need to set a few things up for you."
}

docker_needed_message() {
  red_text "You need to have docker installed, I can't install it for you."
  red_text "If you haven't already, please follow the setup instructions for your machine over at"
  red_text "https://github.com/twlevelup/watch_edition_react/wiki/Setup%3A-Tools"
}

docker_image_exist() {
  [[ "$(docker images -q $docker_image 2> /dev/null)" ]]
}

export NODE_VERSION="$(cat .node-version)"
export docker_image="node:${NODE_VERSION}"

case "$1" in
  "setup")
    if ! command_exists docker; then
      docker_needed_message
      exit 1
    fi

    if ! docker_image_exist; then
      bold_text "Pulling docker image: ${docker_image}"
      docker pull $docker_image
      green_tick "Pulled docker image"
    fi

    if [ ! -d "node_modules" ]; then
      bold_text "Installing npm packages"
      run_docker npm install
      green_tick "Installed npm packages"
    fi

    echo ""
    green_text "All done! You can now start using the app!"
    ;;

  "install" | "i")
    run_docker npm -s install
    ;;

  "test" | "t" )
    run_docker npm -s test
    exit $?
    ;;

  "test:dev" | "td")
    run_docker npm -s run test:dev
    exit $?
    ;;

  "precommit" | "p")
    run_docker npm -s run precommit
    exit $?
    ;;

  "start" | "s")
    run_docker npm run start
    ;;

  *)
    show_instructions
    ;;
esac