igoroctaviano/3.js

Simpson Node Course

const minimist = require('minimist');

const printHelp = () => { 
  console.log("3.js (c) Igor Octaviano");
  console.log("");
  console.log("Usage:");
  console.log("--help    print this help");
  console.log("--name    read the file of {NAME} and output the content");
}

const args = minimist(process.argv.slice(2), { string: 'file' });

if (args.help || !args.file) {
  printHelp();
  process.exit(1);
}

const hello = require('./helloworld2.js');
hello.say(args.file).val(contents => console.log(contents.toString()))
  .or(err => console.log(err.message));