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-rw-r--r--node_modules/prompts/lib/index.js98
1 files changed, 98 insertions, 0 deletions
diff --git a/node_modules/prompts/lib/index.js b/node_modules/prompts/lib/index.js
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+'use strict';
+
+const prompts = require('./prompts');
+
+const passOn = ['suggest', 'format', 'onState', 'validate', 'onRender', 'type'];
+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
+ */
+async function prompt(questions=[], { onSubmit=noop, onCancel=noop }={}) {
+ const answers = {};
+ const override = prompt._override || {};
+ questions = [].concat(questions);
+ let answer, question, quit, name, type, lastPrompt;
+
+ const getFormattedAnswer = async (question, answer, skipValidation = false) => {
+ if (!skipValidation && question.validate && question.validate(answer) !== true) {
+ return;
+ }
+ return question.format ? await question.format(answer, answers) : answer
+ };
+
+ for (question of questions) {
+ ({ name, type } = question);
+
+ // evaluate type first and skip if type is a falsy value
+ if (typeof type === 'function') {
+ type = await type(answer, { ...answers }, question)
+ question['type'] = type
+ }
+ if (!type) continue;
+
+ // 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' ? await value(answer, { ...answers }, lastPrompt) : value;
+ }
+
+ lastPrompt = question;
+
+ if (typeof question.message !== 'string') {
+ throw new Error('prompt message is required');
+ }
+
+ // update vars in case they changed
+ ({ name, type } = question);
+
+ if (prompts[type] === void 0) {
+ throw new Error(`prompt type (${type}) is not defined`);
+ }
+
+ if (override[question.name] !== undefined) {
+ answer = await 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, question.initial) : await prompts[type](question);
+ answers[name] = answer = await getFormattedAnswer(question, answer, true);
+ quit = await onSubmit(question, answer, answers);
+ } catch (err) {
+ quit = !(await onCancel(question, answers));
+ }
+
+ if (quit) return answers;
+ }
+
+ return answers;
+}
+
+function getInjectedAnswer(injected, deafultValue) {
+ const answer = injected.shift();
+ if (answer instanceof Error) {
+ throw answer;
+ }
+
+ return (answer === undefined) ? deafultValue : 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 });