index.js 3.5 KB

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  1. 'use strict';
  2. var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
  3. /**
  4. * Prompt for a series of questions
  5. * @param {Array|Object} questions Single question object or Array of question objects
  6. * @returns {Object} Object with values from user input
  7. */
  8. let prompt = (() => {
  9. var _ref = _asyncToGenerator(function* (questions = [], { onSubmit = noop, onCancel = noop } = {}) {
  10. const answers = {};
  11. questions = [].concat(questions);
  12. let answer, question, quit, name, type;
  13. let MAP = prompt._map || {};
  14. var _iteratorNormalCompletion = true;
  15. var _didIteratorError = false;
  16. var _iteratorError = undefined;
  17. try {
  18. for (var _iterator = questions[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
  19. question = _step.value;
  20. var _question = question;
  21. name = _question.name;
  22. type = _question.type;
  23. if (MAP[name] !== void 0) {
  24. answers[name] = MAP[name];
  25. delete MAP[name];
  26. continue; // take val & run
  27. }
  28. // if property is a function, invoke it unless it's ignored
  29. for (let key in question) {
  30. if (ignore.includes(key)) continue;
  31. let value = question[key];
  32. question[key] = typeof value === 'function' ? yield value(answer, _extends({}, answers), question) : value;
  33. }
  34. if (typeof question.message !== 'string') {
  35. throw new Error('prompt message is required');
  36. }
  37. // update vars in case they changed
  38. // skip if type is a falsy value
  39. var _question2 = question;
  40. name = _question2.name;
  41. type = _question2.type;
  42. if (!type) continue;
  43. if (prompts[type] === void 0) {
  44. throw new Error(`prompt type (${type}) is not defined`);
  45. }
  46. try {
  47. answer = yield prompts[type](question);
  48. answers[name] = answer = question.format ? yield question.format(answer, answers) : answer;
  49. quit = onSubmit(question, answer);
  50. } catch (err) {
  51. quit = !onCancel(question);
  52. }
  53. if (quit) return answers;
  54. }
  55. } catch (err) {
  56. _didIteratorError = true;
  57. _iteratorError = err;
  58. } finally {
  59. try {
  60. if (!_iteratorNormalCompletion && _iterator.return) {
  61. _iterator.return();
  62. }
  63. } finally {
  64. if (_didIteratorError) {
  65. throw _iteratorError;
  66. }
  67. }
  68. }
  69. return answers;
  70. });
  71. return function prompt() {
  72. return _ref.apply(this, arguments);
  73. };
  74. })();
  75. function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
  76. const prompts = require('./prompts');
  77. const ignore = ['suggest', 'format', 'onState'];
  78. const noop = () => {};
  79. function inject(obj) {
  80. prompt._map = prompt._map || {};
  81. for (let k in obj) {
  82. prompt._map[k] = obj[k];
  83. }
  84. }
  85. module.exports = Object.assign(prompt, { prompt, prompts, inject });