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feat(preset): adding bun-cluster preset
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| import { spawn, type Subprocess } from 'bun'; | ||
| import { fileURLToPath } from 'mlly'; | ||
| import { | ||
| getGracefulShutdownConfig, | ||
| trapUnhandledNodeErrors, | ||
| } from 'nitropack/runtime/internal'; | ||
| import { join, dirname } from 'pathe'; | ||
|
|
||
| const numberOfWorkers = | ||
| Number.parseInt(process.env.NITRO_CLUSTER_WORKERS || "") || | ||
| navigator.hardwareConcurrency; | ||
|
|
||
| const workers: Subprocess[] = Array.from({ length: numberOfWorkers }) | ||
| const dirName = dirname(fileURLToPath(import.meta.url)) | ||
| const workerFile = join(dirName, "./bun-worker") | ||
|
|
||
| for (let i = 0; i < numberOfWorkers; i++) { | ||
| workers[i] = createWorker(i) | ||
| } | ||
|
|
||
| let isShuttingDown = false; | ||
| let isTimedOut = false | ||
|
|
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| const shutdownConfig = getGracefulShutdownConfig(); | ||
|
|
||
| if (!shutdownConfig.disabled) { | ||
| for (const signal of shutdownConfig.signals) { | ||
| process.once(signal, onShutdown); | ||
| } | ||
| } | ||
|
|
||
| trapUnhandledNodeErrors(); | ||
|
|
||
| function createWorker(workerIndex: number): Subprocess { | ||
| return spawn({ | ||
| cmd: ["bun", "--bun", workerFile], | ||
| stdout: "inherit", | ||
| stderr: "inherit", | ||
| stdin: "inherit", | ||
| onExit: () => { | ||
| if (!isShuttingDown) | ||
| workers[workerIndex] = createWorker(workerIndex) | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| async function onShutdown() { | ||
| if (isShuttingDown) { | ||
| return; | ||
| } | ||
| isShuttingDown = true; | ||
|
|
||
| killWorkers() | ||
|
|
||
| const workersKilled = Promise.all(workers.map(i => i.exited)) | ||
|
|
||
| await Promise.any([setTimeout(), workersKilled]) | ||
|
|
||
| if (isTimedOut) { | ||
| console.warn( | ||
| "[nitro] [cluster] Timeout reached for graceful shutdown. Forcing exit." | ||
| ); | ||
| } | ||
|
|
||
| if (shutdownConfig.forceExit) { | ||
| process.exit(0); | ||
| } | ||
| } | ||
|
|
||
| async function setTimeout() { | ||
| isTimedOut = false | ||
| await Bun.sleep(shutdownConfig.timeout) | ||
| isTimedOut = true | ||
| } | ||
|
|
||
| function killWorkers() { | ||
| for (const bun of workers) { | ||
| bun.kill(); | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import "#nitro-internal-pollyfills"; | ||
| import { useNitroApp } from "nitropack/runtime"; | ||
| import { startScheduleRunner } from "nitropack/runtime/internal"; | ||
|
|
||
| import wsAdapter from "crossws/adapters/bun"; | ||
|
|
||
| const nitroApp = useNitroApp(); | ||
|
|
||
| const ws = import.meta._websocket | ||
| ? wsAdapter(nitroApp.h3App.websocket) | ||
| : undefined; | ||
|
|
||
| const server = Bun.serve({ | ||
| reusePort: true, | ||
| port: process.env.NITRO_PORT || process.env.PORT || 3000, | ||
| websocket: import.meta._websocket ? ws!.websocket : (undefined as any), | ||
| async fetch(req: Request, server: any) { | ||
| // https://crossws.unjs.io/adapters/bun | ||
| if (import.meta._websocket && req.headers.get("upgrade") === "websocket") { | ||
| return ws!.handleUpgrade(req, server); | ||
| } | ||
|
|
||
| const url = new URL(req.url); | ||
|
|
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| let body; | ||
| if (req.body) { | ||
| body = await req.arrayBuffer(); | ||
| } | ||
|
|
||
| return nitroApp.localFetch(url.pathname + url.search, { | ||
| host: url.hostname, | ||
| protocol: url.protocol, | ||
| headers: req.headers, | ||
| method: req.method, | ||
| redirect: req.redirect, | ||
| body, | ||
| }); | ||
| }, | ||
| }); | ||
|
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| console.log(`Listening on http://localhost:${server.port}...`); | ||
|
|
||
| // Scheduled tasks | ||
| if (import.meta._tasks) { | ||
| startScheduleRunner(); | ||
| } |
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