| 1 | import ChildProcess from 'child_process';
|
| 2 | export function getAvailablePort(defaultPort = 3000) {
|
| 3 | return new Promise(resolve => {
|
| 4 | ChildProcess.exec('lsof -i -P -n | grep LISTEN', (error, stdout) => {
|
| 5 | if (error) {
|
| 6 | resolve(defaultPort);
|
| 7 | return;
|
| 8 | }
|
| 9 |
|
| 10 | const portsInUse = [];
|
| 11 | const regex = /:(\d+) \(LISTEN\)/;
|
| 12 | stdout.split('\n').forEach(line => {
|
| 13 | const match = regex.exec(line);
|
| 14 |
|
| 15 | if (match) {
|
| 16 | portsInUse.push(Number(match[1]));
|
| 17 | }
|
| 18 | });
|
| 19 | let port = defaultPort;
|
| 20 |
|
| 21 | while (portsInUse.includes(port)) {
|
| 22 | port++;
|
| 23 | }
|
| 24 |
|
| 25 | resolve(port);
|
| 26 | });
|
| 27 | });
|
| 28 | }
|
| 29 | |
| \ | No newline at end of file |