code: function loadFromOptions(opts) {
    var defCfg = loadDefault()
    var cfg = opts.config ? loadFromFile(opts.config) : loadDefault()
  
    // Command line config override file loaded config
    for (var k in opts) {
      defCfg.hasOwnProperty(k) && (defCfg[k] !== opts[k] && (cfg[k] = opts[k]))
    }
  
    return cfg
  }
docs: Get HTTP server configuration from command line options.
  @param {Object} opts - The command line options.
  @return {Object} The HTTP server configuration.