apfe-cli/lib/ask.js

Alipay+ ToolKit

const async = require('async');
const inquirer = require('inquirer');
const evaluate = require('./eval');

// Support types from prompt-for which was used before
const promptMapping = {
  string: 'input',
  boolean: 'confirm',
};

/**
 * Ask questions, return results.
 *
 * @param {Object} prompts
 * @param {Object} data
 * @param {Function} done
 */

module.exports = function ask (prompts, data, done) {
  async.eachSeries(Object.keys(prompts), function (key, next) {
    prompt(data, key, prompts[key], next);
  }, done);
};

/**
 * Inquirer prompt wrapper.
 *
 * @param {Object} data
 * @param {String} key
 * @param {Object} prompt
 * @param {Function} done
 */

function prompt (data, key, prompt, done) {
  // skip prompts whose when condition is not met
  if (prompt.when && !evaluate(prompt.when, data)) {
    return done();
  }

  let promptDefault = prompt.default;
  if (typeof prompt.default === 'function') {
    promptDefault = function () {
      return prompt.default.bind(this)(data);
    };
  }

  inquirer.prompt([
    {
      type: promptMapping[prompt.type] || prompt.type,
      name: key,
      message: prompt.message || prompt.label || key,
      default: promptDefault,
      choices: prompt.choices || [],
      validate: prompt.validate || function () { return true; },
    },
  ]).then(answers => {
    if (Array.isArray(answers[key])) {
      data[key] = {};
      answers[key].forEach(function (multiChoiceAnswer) {
        data[key][multiChoiceAnswer] = true;
      });
    } else if (typeof answers[key] === 'string') {
      data[key] = answers[key].replace(/"/g, '\\"');
    } else {
      data[key] = answers[key];
    }
    done();
  });
}