react-native/local-cli/util/assertRequiredOptions.js

33 lines
990 B
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
'use strict';
const { Option } = require('commander');
const { camelCase } = require('lodash');
// Commander.js has a 2 years old open issue to support <...> syntax
// for options. Until that gets merged, we run the checks manually
// https://github.com/tj/commander.js/issues/230
module.exports = function assertRequiredOptions(options, passedOptions) {
options.forEach(opt => {
const option = new Option(opt.command);
if (!option.required) {
return;
}
const name = camelCase(option.long);
if (!passedOptions[name]) {
// Provide commander.js like error message
throw new Error(`error: option '${option.long}' missing`);
}
});
};