generator-loopback/boot-script/index.js

Yeoman generator for LoopBack

// Copyright IBM Corp. 2015,2019. All Rights Reserved.
// Node module: generator-loopback
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT

'use strict';

var debug = require('debug')('loopback:generator:boot-script');
var g = require('../lib/globalize');
var helpers = require('../lib/helpers');
var helpText = require('../lib/help');

var path = require('path');
var yeoman = require('yeoman-generator');
var ActionsMixin = require('../lib/actions');

var validateRequiredName = helpers.validateRequiredName;

module.exports = class BootScriptGenerator extends ActionsMixin(yeoman) {
  constructor(args, opts) {
    super(args, opts);

    this.argument('name', {
      desc: g.f('Name of the boot script to create.'),
      required: false,
      optional: true,
      type: String,
    });
  }

  help() {
    return helpText.customHelp(this, 'loopback_boot-script_usage.txt');
  }

  askForName() {
    var done = this.async();
    if (this.arguments && this.arguments.length >= 1) {
      debug('boot-script name is provided as %s', this.arguments[0]);
      this.name = this.arguments[0];
      return done();
    }

    var question = {
      name: 'name',
      message: g.f('Enter the script name (without {{`.js`}}):'),
      default: this.name,
      validate: validateRequiredName,
    };

    return this.prompt(question).then(function(answer) {
      this.name = answer.name;
      done();
    }.bind(this));
  }

  askForType() {
    var question = {
      name: 'type',
      message: g.f('What type of boot script do you want to generate?'),
      type: 'list',
      choices: [
        {name: g.f('async'), value: 'async'},
        {name: g.f('sync'), value: 'sync'}],
      default: 'async',
    };

    return this.prompt(question).then(function(answer) {
      this.type = answer.type;
    }.bind(this));
  }

  generate() {
    var source = this.templatePath(this.type + '.js');

    // yeoman-generator 0.20.x doesn't like the leading /
    var targetPath = path.normalize('server/boot/' + this.name + '.js');
    var target = this.destinationPath(targetPath);

    this.copy(source, target);
  }
};