yeoman-generator/lib/actions/invoke.js

Rails-inspired generator system that provides scaffolding for your apps

'use strict';

/**
 * Receives a `namespace`, and an Hash of `options` to invoke a given
 * generator. The usual list of arguments can be set with `options.args`
 * (ex. nopt's argv.remain array)
 *
 * @deprecated As of version 0.17.0, `invoke()` should be replaced by `composeWith()`.
 *
 * @param {String} namespace
 * @param {Object} options
 * @param {Function} cb
 *
 * @mixin
 * @alias actions/invoke
 */

module.exports = function invoke(namespace, options, cb) {
  cb = cb || function () {};
  options = options || {};
  options.args = options.args || [];

  // Hack: create a clone of the environment because we don't want to share
  // the runLoop
  var env = require('yeoman-environment').util.duplicateEnv(this.env);
  var generator = env.create(namespace, options);

  this.log.emit('up');
  this.log.invoke(namespace);
  this.log.emit('up');

  generator.once('end', function () {
    this.log.emit('down');
    this.log.emit('down');
  }.bind(this));

  return generator.run(cb);
};