expressjs-gen-javascript/src/cli.js

a powerful tool to create expressjs projects from CLI

import arg from 'arg';
import inquirer from 'inquirer';
import { createProject } from './main';
const path = require('path');

function parseArgumentsIntoOptions(rawArgs) {
  const args = arg(
    {
      '--git': Boolean,
      '--yes': Boolean,
      '--install': Boolean,
      '-g': '--git',
      '-y': '--yes',
      '-i': '--install',
    },
    {
      argv: rawArgs.slice(2),
    }
  );
  return {
    skipPrompts: args['--yes'] || false,
    git: args['--git'] || false,
    template: args._[0],
    runInstall: args['--install'] || false,
  };
 }

async function promptForMissingOptions(options) {
 const defaultTemplate = 'express-mongo';
 if (options.skipPrompts) {
   return {
     ...options,
     template: options.template || defaultTemplate,
   };
 }
 const questions = [];
 if (!options.template) {
   questions.push({
     type: 'list',
     name: 'template',
     message: 'Choose your template',
     choices: ['express-mongo'],
     default: defaultTemplate,
   });
 }

 if (!options.git) {
   questions.push({
     type: 'confirm',
     name: 'git',
     message: 'Initialize a git repository?',
     default: false,
   });
 }

 const answers = await inquirer.prompt(questions);
 return {
   ...options,
   template: options.template || answers.template,
   git: options.git || answers.git,
 };
}


export async function cli(args) {
  let options = parseArgumentsIntoOptions(args);
  options = await promptForMissingOptions(options);
  await createProject(options);
 }