A bash function for installing/updating docker-compose

docker-compose-install.sh

# Add to your ~/.bash_aliases or preferred spot for such functions:

docker-compose-install (){
  if [ ! "$(type -p jq)" ]; then
    echo -e "** Fail! This needs jq. Please do one of:\n   apt install jq\n   port install jq"
    return 99
  fi
  [ $(type -p docker-compose) ] && \
    current_version=$(docker-compose -v | awk '{print $4}')
  current_version="${current_version:-v0.0.0}"
  latest_version=$(curl -s https://api.github.com/repos/docker/compose/releases/latest | jq '.tag_name' --raw-output)
  if [ "${current_version}" == "${latest_version}" ]; then
    echo "** But docker-compose is alreaday at the latest release: ${latest_version}"
  else
    echo "** Updating docker-compose from ${current_version} to ${latest_version}"
    curl \
      -sL "https://github.com/docker/compose/releases/download/${latest_version}/docker-compose-$(uname -s)-$(uname -m)" \
      -o '/tmp/docker-compose'
    curl \
      -sL "https://raw.githubusercontent.com/docker/compose/${latest_version}/contrib/completion/bash/docker-compose" \
      -o /tmp/docker-compose.bash
    sudo chown root:staff /tmp/docker-compose
    sudo chmod +x /tmp/docker-compose
    sudo mv /tmp/docker-compose /usr/local/bin/
    sudo mv /tmp/docker-compose.bash /etc/bash_completion.d/
  fi
}