script to open multiple urls from a text file

opener.mjs

// Harshit Joshi, 22-04-2022
// MIT license
// unsafe dont use .... any arg can be placed in the urls file and it wont be filtered

import cp from "child_process";
import fs from "fs";

let COMMAND = `start firefox `;

function readUrls(file) {
	let contents = fs.readFileSync(file).toString();
	// removing empty lines and adding "" to avoid having to escape special characters
	return contents
		.split("\r\n")
		.filter((str) => str.length)
		.map((str) => `"${str}"`);
}

async function main() {
	let file = process.argv[2];
	if (process.argv.length < 3) {
		console.log(`Usage: opener [file]`);
		process.exit(1);
	}
	const canAccess = fs.lstatSync(file).isFile();
	if (!canAccess) {
		console.error(`Unable to read file "${file}"`);
		process.exit(1);
	}
	let urls = readUrls(process.argv[2]);
	COMMAND += urls.join(" ");
	console.log(COMMAND);
	cp.execSync(COMMAND);
	process.exit(0);
}

await main();