#!/usr/bin/env bash
set -eu

function set_port {
  if [ -n "${PORT:-}" ] && [ "${1:-}" == "serve" ]; then
    if [[ "${@}" != *"-p="* ]] && [[ "${@}" != *"--port "* ]]; then
        echo "--port ${PORT}"
    fi
  fi
}

exec ./node_modules/polymer-cli/bin/polymer.js $@ $(set_port $@)
