text: const debug = require('debug')('ice:util:url');
  const FUSION_DESIGN_DAILY_URL = 'https://fusion.taobao.net';
  const FUSION_DESIGN_PRE_URL = 'https://pre-www.fusion.design';
  const FUSION_DESIGN_URL = 'https://fusion.design';
  
  const URLS = {
    daily: {
      fusionDesignUrl: FUSION_DESIGN_DAILY_URL,
    },
    pre: {
      fusionDesignUrl: FUSION_DESIGN_PRE_URL,
    },
    prod: {
      fusionDesignUrl: FUSION_DESIGN_URL,
    },
  };
  
  let url;
  module.exports = function getUrl() {
    if (url) {
      return url;
    }
    const {ENV} = process.env;
    url = URLS[ENV];
    if (!url) {
      url = URLS.prod;
    }
    debug('url: %j', url);
    return url;
  }
  