thelounge/index.js

#!/usr/bin/env node

"use strict";

process.chdir(__dirname);

// Perform node version check before loading any other files or modules
// Doing this check as soon as possible allows us to
// avoid ES6 parser errors or other issues
const pkg = require("./package.json");

if (!require("semver").satisfies(process.version, pkg.engines.node)) {
	/* eslint-disable no-console */
	console.error(
		"The Lounge requires Node.js " +
			pkg.engines.node +
			" (current version: " +
			process.version +
			")"
	);
	console.error("Please upgrade Node.js in order to use The Lounge");
	console.error("See https://thelounge.chat/docs/install-and-upgrade");
	console.error();

	process.exit(1);
}

const dns = require("dns");

// Set DNS result order early before anything that may depend on it happens.
if (dns.setDefaultResultOrder) {
	dns.setDefaultResultOrder("verbatim");
}

require("./src/command-line");