151 lines
		
	
	
		
			5.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
		
		
			
		
	
	
			151 lines
		
	
	
		
			5.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
|  | 'use strict'; | ||
|  | 
 | ||
|  | function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; } | ||
|  | 
 | ||
|  | function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } | ||
|  | 
 | ||
|  | function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } | ||
|  | 
 | ||
|  | function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } | ||
|  | 
 | ||
|  | const prompts = require('./prompts'); | ||
|  | 
 | ||
|  | const passOn = ['suggest', 'format', 'onState', 'validate', 'onRender']; | ||
|  | 
 | ||
|  | const noop = () => {}; | ||
|  | /** | ||
|  |  * Prompt for a series of questions | ||
|  |  * @param {Array|Object} questions Single question object or Array of question objects | ||
|  |  * @param {Function} [onSubmit] Callback function called on prompt submit | ||
|  |  * @param {Function} [onCancel] Callback function called on cancel/abort | ||
|  |  * @returns {Object} Object with values from user input | ||
|  |  */ | ||
|  | 
 | ||
|  | 
 | ||
|  | function prompt() { | ||
|  |   return _prompt.apply(this, arguments); | ||
|  | } | ||
|  | 
 | ||
|  | function _prompt() { | ||
|  |   _prompt = _asyncToGenerator(function* (questions = [], { | ||
|  |     onSubmit = noop, | ||
|  |     onCancel = noop | ||
|  |   } = {}) { | ||
|  |     const answers = {}; | ||
|  |     const override = prompt._override || {}; | ||
|  |     questions = [].concat(questions); | ||
|  |     let answer, question, quit, name, type; | ||
|  | 
 | ||
|  |     const getFormattedAnswer = | ||
|  |     /*#__PURE__*/ | ||
|  |     function () { | ||
|  |       var _ref = _asyncToGenerator(function* (question, answer, skipValidation = false) { | ||
|  |         if (!skipValidation && question.validate && question.validate(answer) !== true) { | ||
|  |           return; | ||
|  |         } | ||
|  | 
 | ||
|  |         return question.format ? yield question.format(answer, answers) : answer; | ||
|  |       }); | ||
|  | 
 | ||
|  |       return function getFormattedAnswer(_x, _x2) { | ||
|  |         return _ref.apply(this, arguments); | ||
|  |       }; | ||
|  |     }(); | ||
|  | 
 | ||
|  |     var _iteratorNormalCompletion = true; | ||
|  |     var _didIteratorError = false; | ||
|  |     var _iteratorError = undefined; | ||
|  | 
 | ||
|  |     try { | ||
|  |       for (var _iterator = questions[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { | ||
|  |         question = _step.value; | ||
|  |         var _question = question; | ||
|  |         name = _question.name; | ||
|  |         type = _question.type; | ||
|  | 
 | ||
|  |         // if property is a function, invoke it unless it's a special function
 | ||
|  |         for (let key in question) { | ||
|  |           if (passOn.includes(key)) continue; | ||
|  |           let value = question[key]; | ||
|  |           question[key] = typeof value === 'function' ? yield value(answer, _objectSpread({}, answers), question) : value; | ||
|  |         } | ||
|  | 
 | ||
|  |         if (typeof question.message !== 'string') { | ||
|  |           throw new Error('prompt message is required'); | ||
|  |         } // update vars in case they changed
 | ||
|  | 
 | ||
|  | 
 | ||
|  |         var _question2 = question; | ||
|  |         name = _question2.name; | ||
|  |         type = _question2.type; | ||
|  |         // skip if type is a falsy value
 | ||
|  |         if (!type) continue; | ||
|  | 
 | ||
|  |         if (prompts[type] === void 0) { | ||
|  |           throw new Error(`prompt type (${type}) is not defined`); | ||
|  |         } | ||
|  | 
 | ||
|  |         if (override[question.name] !== undefined) { | ||
|  |           answer = yield getFormattedAnswer(question, override[question.name]); | ||
|  | 
 | ||
|  |           if (answer !== undefined) { | ||
|  |             answers[name] = answer; | ||
|  |             continue; | ||
|  |           } | ||
|  |         } | ||
|  | 
 | ||
|  |         try { | ||
|  |           // Get the injected answer if there is one or prompt the user
 | ||
|  |           answer = prompt._injected ? getInjectedAnswer(prompt._injected) : yield prompts[type](question); | ||
|  |           answers[name] = answer = yield getFormattedAnswer(question, answer, true); | ||
|  |           quit = yield onSubmit(question, answer, answers); | ||
|  |         } catch (err) { | ||
|  |           quit = !(yield onCancel(question, answers)); | ||
|  |         } | ||
|  | 
 | ||
|  |         if (quit) return answers; | ||
|  |       } | ||
|  |     } catch (err) { | ||
|  |       _didIteratorError = true; | ||
|  |       _iteratorError = err; | ||
|  |     } finally { | ||
|  |       try { | ||
|  |         if (!_iteratorNormalCompletion && _iterator.return != null) { | ||
|  |           _iterator.return(); | ||
|  |         } | ||
|  |       } finally { | ||
|  |         if (_didIteratorError) { | ||
|  |           throw _iteratorError; | ||
|  |         } | ||
|  |       } | ||
|  |     } | ||
|  | 
 | ||
|  |     return answers; | ||
|  |   }); | ||
|  |   return _prompt.apply(this, arguments); | ||
|  | } | ||
|  | 
 | ||
|  | function getInjectedAnswer(injected) { | ||
|  |   const answer = injected.shift(); | ||
|  | 
 | ||
|  |   if (answer instanceof Error) { | ||
|  |     throw answer; | ||
|  |   } | ||
|  | 
 | ||
|  |   return answer; | ||
|  | } | ||
|  | 
 | ||
|  | function inject(answers) { | ||
|  |   prompt._injected = (prompt._injected || []).concat(answers); | ||
|  | } | ||
|  | 
 | ||
|  | function override(answers) { | ||
|  |   prompt._override = Object.assign({}, answers); | ||
|  | } | ||
|  | 
 | ||
|  | module.exports = Object.assign(prompt, { | ||
|  |   prompt, | ||
|  |   prompts, | ||
|  |   inject, | ||
|  |   override | ||
|  | }); |