mirror of
https://github.com/zhigang1992/create-react-app.git
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f7011e0472
This fixes #302 by temporarily forking `detect-port`. Hopefully this fix will be merged into the original project, and we can refer to it again.
87 lines
2.2 KiB
JavaScript
87 lines
2.2 KiB
JavaScript
/* ================================================================
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* detect-port by xdf(xudafeng[at]126.com)
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*
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* first created at : Tue Mar 17 2015 00:16:10 GMT+0800 (CST)
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*
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* ================================================================
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* Copyright xdf
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*
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* Licensed under the MIT License
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* You may not use this file except in compliance with the License.
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*
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* ================================================================ */
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// We are forking this temporarily to resolve
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// https://github.com/facebookincubator/create-react-app/issues/302.
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// We can replace this fork with `detect-port` package when this is merged:
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// https://github.com/xudafeng/detect-port/pull/4.
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'use strict';
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var net = require('net');
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var inject = function(port) {
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var options = global.__detect ? global.__detect.options : {};
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if (options.verbose) {
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console.log('port %d was occupied', port);
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}
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};
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function detect(port, fn) {
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var _detect = function(port) {
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return new Promise(function(resolve, reject) {
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var socket = new net.Socket();
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socket.once('error', function() {
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socket.removeAllListeners('connect');
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socket.removeAllListeners('error');
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socket.end();
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socket.destroy();
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socket.unref();
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var server = new net.Server();
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server.on('error', function() {
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inject(port);
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port++;
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resolve(_detect(port));
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});
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server.listen(port, function() {
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server.once('close', function() {
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resolve(port);
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});
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server.close();
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});
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});
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socket.once('connect', function() {
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inject(port);
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port++;
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resolve(_detect(port));
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socket.removeAllListeners('connect');
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socket.removeAllListeners('error');
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socket.end();
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socket.destroy();
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socket.unref();
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});
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socket.connect({
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port: port
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});
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});
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}
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var _detect_with_cb = function(_fn) {
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_detect(port)
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.then(function(result) {
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_fn(null, result);
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})
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.catch(function(e) {
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_fn(e);
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});
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};
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return fn ? _detect_with_cb(fn) : _detect(port);
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}
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module.exports = detect;
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