| 1 | import * as net from "node:net"; |
| 2 | |
| 3 | export async function getAvailablePort(preferred: number): Promise<number> { |
| 4 | let port = preferred; |
| 5 | while (port < preferred + 100) { |
| 6 | const available = await new Promise<boolean>((resolve) => { |
| 7 | const server = net.createServer(); |
| 8 | server.once("error", () => resolve(false)); |
| 9 | server.once("listening", () => { |
| 10 | server.close(); |
| 11 | resolve(true); |
| 12 | }); |
| 13 | server.listen(port); |
| 14 | }); |
| 15 | if (available) return port; |
| 16 | port++; |
| 17 | } |
| 18 | throw new Error( |
| 19 | `No available port found in range ${preferred}-${preferred + 99}` |
| 20 | ); |
| 21 | } |
| 22 | |
| 23 | export function detectQuoteStyle(source: string): "single" | "double" { |
| 24 | // Only count quotes in import/require statements to avoid JSX attribute bias |