@zkochan/pnpm/cached_node_modules/get-port/index.js

A fast implementation of npm install

'use strict';
var net = require('net');
var Promise = require('pinkie-promise');

module.exports = function () {
	return new Promise(function (resolve, reject) {
		var server = net.createServer();

		server.unref();
		server.on('error', reject);

		server.listen(0, function () {
			var port = server.address().port;

			server.close(function () {
				resolve(port);
			});
		});
	});
};