code: function getFrameworkOrEggPath(cwd, eggNames) {
    eggNames = eggNames || [ 'egg' ];
    const moduleDir = path.join(cwd, 'node_modules');
    if (!fs.existsSync(moduleDir)) {
      return '';
    }
  
    // try to get framework
  
    // 1. try to read egg.framework property on package.json
    const pkgFile = path.join(cwd, 'package.json');
    if (fs.existsSync(pkgFile)) {
      const pkg = utility.readJSONSync(pkgFile);
      if (pkg.egg && pkg.egg.framework) {
        return path.join(moduleDir, pkg.egg.framework);
      }
    }
  
    // 2. try the module dependencies includes eggNames
    const names = fs.readdirSync(moduleDir);
    for (const name of names) {
      const pkgfile = path.join(moduleDir, name, 'package.json');
      if (!fs.existsSync(pkgfile)) {
        continue;
      }
      const pkg = utility.readJSONSync(pkgfile);
      if (pkg.dependencies) {
        for (const eggName of eggNames) {
          if (pkg.dependencies[eggName]) {
            return path.join(moduleDir, name);
          }
        }
      }
    }
  
    // try to get egg
    for (const eggName of eggNames) {
      const pkgfile = path.join(moduleDir, eggName, 'package.json');
      if (fs.existsSync(pkgfile)) {
        return path.join(moduleDir, eggName);
      }
    }
  
    return '';
  }
docs: Try to get framework dir path
  If can't find any framework, try to find egg dir path
  
  @param {String} cwd - current work path
  @param {Array} [eggNames] - egg names, default is ['egg']
  @return {String} framework or egg dir path
  @deprecated