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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "Worker", {
enumerable: true,
get: function() {
return Worker;
}
});
const _jestworker = require("next/dist/compiled/jest-worker");
const _stream = require("stream");
const RESTARTED = Symbol('restarted');
const cleanupWorkers = (worker)=>{
var _worker__workerPool;
for (const curWorker of ((_worker__workerPool = worker._workerPool) == null ? void 0 : _worker__workerPool._workers) || []){
var _curWorker__child;
(_curWorker__child = curWorker._child) == null ? void 0 : _curWorker__child.kill('SIGINT');
}
};
class Worker {
constructor(workerPath, options){
let { timeout, onRestart, logger = console, ...farmOptions } = options;
let restartPromise;
let resolveRestartPromise;
let activeTasks = 0;
this._worker = undefined;
// ensure we end workers if they weren't before exit
process.on('exit', ()=>{
this.close();
});
const createWorker = ()=>{
var _farmOptions_forkOptions;
this._worker = new _jestworker.Worker(workerPath, {
...farmOptions,
forkOptions: {
...farmOptions.forkOptions,
env: {
...((_farmOptions_forkOptions = farmOptions.forkOptions) == null ? void 0 : _farmOptions_forkOptions.env) || {},
...process.env,
IS_NEXT_WORKER: 'true'
}
},
maxRetries: 0
});
restartPromise = new Promise((resolve)=>resolveRestartPromise = resolve);
/**
* Jest Worker has two worker types, ChildProcessWorker (uses child_process) and NodeThreadWorker (uses worker_threads)
* Next.js uses ChildProcessWorker by default, but it can be switched to NodeThreadWorker with an experimental flag
*
* We only want to handle ChildProcessWorker's orphan process issue, so we access the private property "_child":
* https://github.com/facebook/jest/blob/b38d7d345a81d97d1dc3b68b8458b1837fbf19be/packages/jest-worker/src/workers/ChildProcessWorker.ts
*
* But this property is not available in NodeThreadWorker, so we need to check if we are using ChildProcessWorker
*/ if (!farmOptions.enableWorkerThreads) {
var _this__worker__workerPool;
for (const worker of ((_this__worker__workerPool = this._worker._workerPool) == null ? void 0 : _this__worker__workerPool._workers) || []){
var _worker__child, // if a child process emits a particular message, we track that as activity
// so the parent process can keep track of progress
_worker__child1;
(_worker__child = worker._child) == null ? void 0 : _worker__child.on('exit', (code, signal)=>{
if ((code || signal && signal !== 'SIGINT') && this._worker) {
logger.error(`Next.js build worker exited with code: ${code} and signal: ${signal}`);
// if a child process doesn't exit gracefully, we want to bubble up the exit code to the parent process
process.exit(code ?? 1);
}
});
(_worker__child1 = worker._child) == null ? void 0 : _worker__child1.on('message', ([, data])=>{
if (data && typeof data === 'object' && 'type' in data && data.type === 'activity') {
onActivity();
}
});
}
}
let aborted = false;
const onActivityAbort = ()=>{
if (!aborted) {
options.onActivityAbort == null ? void 0 : options.onActivityAbort.call(options);
aborted = true;
}
};
// Listen to the worker's stdout and stderr, if there's any thing logged, abort the activity first
const abortActivityStreamOnLog = new _stream.Transform({
transform (_chunk, _encoding, callback) {
onActivityAbort();
callback();
}
});
// Stop the activity if there's any output from the worker
this._worker.getStdout().pipe(abortActivityStreamOnLog);
this._worker.getStderr().pipe(abortActivityStreamOnLog);
// Pipe the worker's stdout and stderr to the parent process
this._worker.getStdout().pipe(process.stdout);
this._worker.getStderr().pipe(process.stderr);
};
createWorker();
const onHanging = ()=>{
const worker = this._worker;
if (!worker) return;
const resolve = resolveRestartPromise;
createWorker();
logger.warn(`Sending SIGTERM signal to static worker due to timeout${timeout ? ` of ${timeout / 1000} seconds` : ''}. Subsequent errors may be a result of the worker exiting.`);
worker.end().then(()=>{
resolve(RESTARTED);
});
};
let hangingTimer = false;
const onActivity = ()=>{
if (hangingTimer) clearTimeout(hangingTimer);
if (options.onActivity) options.onActivity();
hangingTimer = activeTasks > 0 && setTimeout(onHanging, timeout);
};
for (const method of farmOptions.exposedMethods){
if (method.startsWith('_')) continue;
this[method] = timeout ? async (...args)=>{
activeTasks++;
try {
let attempts = 0;
for(;;){
onActivity();
const result = await Promise.race([
this._worker[method](...args),
restartPromise
]);
if (result !== RESTARTED) return result;
if (onRestart) onRestart(method, args, ++attempts);
}
} finally{
activeTasks--;
onActivity();
}
} : this._worker[method].bind(this._worker);
}
}
end() {
const worker = this._worker;
if (!worker) {
throw Object.defineProperty(new Error('Farm is ended, no more calls can be done to it'), "__NEXT_ERROR_CODE", {
value: "E265",
enumerable: false,
configurable: true
});
}
cleanupWorkers(worker);
this._worker = undefined;
return worker.end();
}
/**
* Quietly end the worker if it exists
*/ close() {
if (this._worker) {
cleanupWorkers(this._worker);
this._worker.end();
}
}
}
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