| 37 | |
| 38 | // This is not used by Next.js, but it is used by the standalone turbopack-cli |
| 39 | export function connectHMR(options: HMROptions) { |
| 40 | const { timeout = 5 * 1000 } = options |
| 41 | |
| 42 | function init() { |
| 43 | if (source) source.close() |
| 44 | |
| 45 | console.log('[HMR] connecting...') |
| 46 | |
| 47 | function handleOnline() { |
| 48 | const connected = { type: 'turbopack-connected' as const } |
| 49 | messageCallbacks.forEach((cb) => { |
| 50 | cb(connected) |
| 51 | }) |
| 52 | |
| 53 | if (options.log) console.log('[HMR] connected') |
| 54 | // lastActivity = Date.now() |
| 55 | } |
| 56 | |
| 57 | function handleMessage(event: MessageEvent) { |
| 58 | // lastActivity = Date.now() |
| 59 | |
| 60 | const message = { |
| 61 | type: 'turbopack-message' as const, |
| 62 | data: JSON.parse(event.data), |
| 63 | } |
| 64 | messageCallbacks.forEach((cb) => { |
| 65 | cb(message) |
| 66 | }) |
| 67 | } |
| 68 | |
| 69 | // let timer: NodeJS.Timeout |
| 70 | |
| 71 | function handleDisconnect() { |
| 72 | source.close() |
| 73 | setTimeout(init, timeout) |
| 74 | } |
| 75 | |
| 76 | const { hostname, port } = location |
| 77 | const protocol = getSocketProtocol(options.assetPrefix || '') |
| 78 | const assetPrefix = options.assetPrefix.replace(/^\/+/, '') |
| 79 | |
| 80 | let url = `${protocol}://${hostname}:${port}${ |
| 81 | assetPrefix ? `/${assetPrefix}` : '' |
| 82 | }` |
| 83 | |
| 84 | if (assetPrefix.startsWith('http')) { |
| 85 | url = `${protocol}://${assetPrefix.split('://')[1]}` |
| 86 | } |
| 87 | |
| 88 | source = new window.WebSocket(`${url}${options.path}`) |
| 89 | source.onopen = handleOnline |
| 90 | source.onerror = handleDisconnect |
| 91 | source.onmessage = handleMessage |
| 92 | } |
| 93 | |
| 94 | init() |
| 95 | } |