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315
node_modules/next/dist/esm/server/lib/start-server.js
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315
node_modules/next/dist/esm/server/lib/start-server.js
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import { getNetworkHost } from '../../lib/get-network-host';
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if (performance.getEntriesByName('next-start').length === 0) {
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performance.mark('next-start');
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}
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import '../next';
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import '../require-hook';
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import fs from 'fs';
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import v8 from 'v8';
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import path from 'path';
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import http from 'http';
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import https from 'https';
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import os from 'os';
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import Watchpack from 'next/dist/compiled/watchpack';
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import * as Log from '../../build/output/log';
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import setupDebug from 'next/dist/compiled/debug';
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import { RESTART_EXIT_CODE, getFormattedDebugAddress, getNodeDebugType } from './utils';
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import { formatHostname } from './format-hostname';
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import { initialize } from './router-server';
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import { CONFIG_FILES } from '../../shared/lib/constants';
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import { getStartServerInfo, logStartInfo } from './app-info-log';
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import { validateTurboNextConfig } from '../../lib/turbopack-warning';
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import { trace, flushAllTraces } from '../../trace';
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import { isPostpone } from './router-utils/is-postpone';
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import { isIPv6 } from './is-ipv6';
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import { AsyncCallbackSet } from './async-callback-set';
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const debug = setupDebug('next:start-server');
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let startServerSpan;
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export async function getRequestHandlers({ dir, port, isDev, onDevServerCleanup, server, hostname, minimalMode, keepAliveTimeout, experimentalHttpsServer, quiet }) {
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return initialize({
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dir,
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port,
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hostname,
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onDevServerCleanup,
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dev: isDev,
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minimalMode,
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server,
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keepAliveTimeout,
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experimentalHttpsServer,
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startServerSpan,
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quiet
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});
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}
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export async function startServer(serverOptions) {
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const { dir, isDev, hostname, minimalMode, allowRetry, keepAliveTimeout, selfSignedCertificate } = serverOptions;
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let { port } = serverOptions;
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process.title = `next-server (v${"15.3.2"})`;
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let handlersReady = ()=>{};
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let handlersError = ()=>{};
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let handlersPromise = new Promise((resolve, reject)=>{
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handlersReady = resolve;
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handlersError = reject;
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});
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let requestHandler = async (req, res)=>{
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if (handlersPromise) {
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await handlersPromise;
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return requestHandler(req, res);
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}
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throw Object.defineProperty(new Error('Invariant request handler was not setup'), "__NEXT_ERROR_CODE", {
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value: "E287",
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enumerable: false,
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configurable: true
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});
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};
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let upgradeHandler = async (req, socket, head)=>{
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if (handlersPromise) {
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await handlersPromise;
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return upgradeHandler(req, socket, head);
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}
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throw Object.defineProperty(new Error('Invariant upgrade handler was not setup'), "__NEXT_ERROR_CODE", {
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value: "E290",
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enumerable: false,
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configurable: true
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});
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};
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let nextServer;
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// setup server listener as fast as possible
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if (selfSignedCertificate && !isDev) {
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throw Object.defineProperty(new Error('Using a self signed certificate is only supported with `next dev`.'), "__NEXT_ERROR_CODE", {
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value: "E128",
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enumerable: false,
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configurable: true
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});
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}
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async function requestListener(req, res) {
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try {
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if (handlersPromise) {
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await handlersPromise;
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handlersPromise = undefined;
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}
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await requestHandler(req, res);
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} catch (err) {
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res.statusCode = 500;
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res.end('Internal Server Error');
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Log.error(`Failed to handle request for ${req.url}`);
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console.error(err);
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} finally{
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if (isDev) {
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if (v8.getHeapStatistics().used_heap_size > 0.8 * v8.getHeapStatistics().heap_size_limit) {
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Log.warn(`Server is approaching the used memory threshold, restarting...`);
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trace('server-restart-close-to-memory-threshold', undefined, {
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'memory.heapSizeLimit': String(v8.getHeapStatistics().heap_size_limit),
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'memory.heapUsed': String(v8.getHeapStatistics().used_heap_size)
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}).stop();
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await flushAllTraces();
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process.exit(RESTART_EXIT_CODE);
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}
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}
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}
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}
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const server = selfSignedCertificate ? https.createServer({
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key: fs.readFileSync(selfSignedCertificate.key),
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cert: fs.readFileSync(selfSignedCertificate.cert)
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}, requestListener) : http.createServer(requestListener);
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if (keepAliveTimeout) {
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server.keepAliveTimeout = keepAliveTimeout;
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}
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server.on('upgrade', async (req, socket, head)=>{
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try {
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await upgradeHandler(req, socket, head);
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} catch (err) {
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socket.destroy();
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Log.error(`Failed to handle request for ${req.url}`);
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console.error(err);
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}
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});
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let portRetryCount = 0;
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const originalPort = port;
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server.on('error', (err)=>{
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if (allowRetry && port && isDev && err.code === 'EADDRINUSE' && portRetryCount < 10) {
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port += 1;
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portRetryCount += 1;
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server.listen(port, hostname);
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} else {
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Log.error(`Failed to start server`);
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console.error(err);
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process.exit(1);
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}
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});
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let cleanupListeners = isDev ? new AsyncCallbackSet() : undefined;
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await new Promise((resolve)=>{
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server.on('listening', async ()=>{
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const nodeDebugType = getNodeDebugType();
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const addr = server.address();
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const actualHostname = formatHostname(typeof addr === 'object' ? (addr == null ? void 0 : addr.address) || hostname || 'localhost' : addr);
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const formattedHostname = !hostname || actualHostname === '0.0.0.0' ? 'localhost' : actualHostname === '[::]' ? '[::1]' : formatHostname(hostname);
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port = typeof addr === 'object' ? (addr == null ? void 0 : addr.port) || port : port;
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if (portRetryCount) {
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Log.warn(`Port ${originalPort} is in use, using available port ${port} instead.`);
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}
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const networkHostname = hostname ?? getNetworkHost(isIPv6(actualHostname) ? 'IPv6' : 'IPv4');
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const protocol = selfSignedCertificate ? 'https' : 'http';
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const networkUrl = networkHostname ? `${protocol}://${formatHostname(networkHostname)}:${port}` : null;
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const appUrl = `${protocol}://${formattedHostname}:${port}`;
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if (nodeDebugType) {
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const formattedDebugAddress = getFormattedDebugAddress();
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Log.info(`the --${nodeDebugType} option was detected, the Next.js router server should be inspected at ${formattedDebugAddress}.`);
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}
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// Store the selected port to:
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// - expose it to render workers
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// - re-use it for automatic dev server restarts with a randomly selected port
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process.env.PORT = port + '';
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process.env.__NEXT_PRIVATE_ORIGIN = appUrl;
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// Only load env and config in dev to for logging purposes
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let envInfo;
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let experimentalFeatures;
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if (isDev) {
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const startServerInfo = await getStartServerInfo(dir, isDev);
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envInfo = startServerInfo.envInfo;
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experimentalFeatures = startServerInfo.experimentalFeatures;
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}
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logStartInfo({
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networkUrl,
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appUrl,
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envInfo,
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experimentalFeatures,
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maxExperimentalFeatures: 3
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});
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Log.event(`Starting...`);
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try {
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let cleanupStarted = false;
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let closeUpgraded = null;
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const cleanup = ()=>{
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if (cleanupStarted) {
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// We can get duplicate signals, e.g. when `ctrl+c` is used in an
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// interactive shell (i.e. bash, zsh), the shell will recursively
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// send SIGINT to children. The parent `next-dev` process will also
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// send us SIGINT.
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return;
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}
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cleanupStarted = true;
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(async ()=>{
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debug('start-server process cleanup');
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// first, stop accepting new connections and finish pending requests,
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// because they might affect `nextServer.close()` (e.g. by scheduling an `after`)
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await new Promise((res)=>{
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server.close((err)=>{
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if (err) console.error(err);
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res();
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});
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if (isDev) {
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server.closeAllConnections();
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closeUpgraded == null ? void 0 : closeUpgraded();
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}
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});
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// now that no new requests can come in, clean up the rest
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await Promise.all([
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nextServer == null ? void 0 : nextServer.close().catch(console.error),
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cleanupListeners == null ? void 0 : cleanupListeners.runAll().catch(console.error)
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]);
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debug('start-server process cleanup finished');
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process.exit(0);
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})();
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};
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const exception = (err)=>{
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if (isPostpone(err)) {
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// React postpones that are unhandled might end up logged here but they're
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// not really errors. They're just part of rendering.
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return;
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}
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// This is the render worker, we keep the process alive
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console.error(err);
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};
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// Make sure commands gracefully respect termination signals (e.g. from Docker)
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// Allow the graceful termination to be manually configurable
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if (!process.env.NEXT_MANUAL_SIG_HANDLE) {
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process.on('SIGINT', cleanup);
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process.on('SIGTERM', cleanup);
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}
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process.on('rejectionHandled', ()=>{
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// It is ok to await a Promise late in Next.js as it allows for better
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// prefetching patterns to avoid waterfalls. We ignore loggining these.
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// We should've already errored in anyway unhandledRejection.
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});
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process.on('uncaughtException', exception);
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process.on('unhandledRejection', exception);
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const initResult = await getRequestHandlers({
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dir,
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port,
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isDev,
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onDevServerCleanup: cleanupListeners ? cleanupListeners.add.bind(cleanupListeners) : undefined,
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server,
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hostname,
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minimalMode,
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keepAliveTimeout,
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experimentalHttpsServer: !!selfSignedCertificate
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});
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requestHandler = initResult.requestHandler;
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upgradeHandler = initResult.upgradeHandler;
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nextServer = initResult.server;
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closeUpgraded = initResult.closeUpgraded;
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const startServerProcessDuration = performance.mark('next-start-end') && performance.measure('next-start-duration', 'next-start', 'next-start-end').duration;
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handlersReady();
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const formatDurationText = startServerProcessDuration > 2000 ? `${Math.round(startServerProcessDuration / 100) / 10}s` : `${Math.round(startServerProcessDuration)}ms`;
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Log.event(`Ready in ${formatDurationText}`);
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if (process.env.TURBOPACK) {
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await validateTurboNextConfig({
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dir: serverOptions.dir,
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isDev: true
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});
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}
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} catch (err) {
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// fatal error if we can't setup
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handlersError();
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console.error(err);
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process.exit(1);
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}
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resolve();
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});
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server.listen(port, hostname);
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});
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if (isDev) {
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function watchConfigFiles(dirToWatch, onChange) {
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const wp = new Watchpack();
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wp.watch({
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files: CONFIG_FILES.map((file)=>path.join(dirToWatch, file))
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});
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wp.on('change', onChange);
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}
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watchConfigFiles(dir, async (filename)=>{
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if (process.env.__NEXT_DISABLE_MEMORY_WATCHER) {
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Log.info(`Detected change, manual restart required due to '__NEXT_DISABLE_MEMORY_WATCHER' usage`);
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return;
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}
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Log.warn(`Found a change in ${path.basename(filename)}. Restarting the server to apply the changes...`);
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process.exit(RESTART_EXIT_CODE);
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});
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}
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}
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if (process.env.NEXT_PRIVATE_WORKER && process.send) {
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process.addListener('message', async (msg)=>{
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if (msg && typeof msg === 'object' && msg.nextWorkerOptions && process.send) {
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startServerSpan = trace('start-dev-server', undefined, {
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cpus: String(os.cpus().length),
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platform: os.platform(),
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'memory.freeMem': String(os.freemem()),
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'memory.totalMem': String(os.totalmem()),
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'memory.heapSizeLimit': String(v8.getHeapStatistics().heap_size_limit)
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});
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await startServerSpan.traceAsyncFn(()=>startServer(msg.nextWorkerOptions));
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const memoryUsage = process.memoryUsage();
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startServerSpan.setAttribute('memory.rss', String(memoryUsage.rss));
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startServerSpan.setAttribute('memory.heapTotal', String(memoryUsage.heapTotal));
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startServerSpan.setAttribute('memory.heapUsed', String(memoryUsage.heapUsed));
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process.send({
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nextServerReady: true,
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port: process.env.PORT
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});
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}
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});
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process.send({
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nextWorkerReady: true
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});
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}
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//# sourceMappingURL=start-server.js.map
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