next
Version:
The React Framework
241 lines (240 loc) • 9.91 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
0 && (module.exports = {
Lockfile: null,
parseDevServerInfo: null,
readLockfileContent: null
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
Lockfile: function() {
return Lockfile;
},
parseDevServerInfo: function() {
return parseDevServerInfo;
},
readLockfileContent: function() {
return readLockfileContent;
}
});
const _fs = /*#__PURE__*/ _interop_require_default(require("fs"));
const _path = /*#__PURE__*/ _interop_require_default(require("path"));
const _picocolors = require("../lib/picocolors");
const _log = /*#__PURE__*/ _interop_require_wildcard(require("./output/log"));
const _swc = require("./swc");
function _interop_require_default(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
function _getRequireWildcardCache(nodeInterop) {
if (typeof WeakMap !== "function") return null;
var cacheBabelInterop = new WeakMap();
var cacheNodeInterop = new WeakMap();
return (_getRequireWildcardCache = function(nodeInterop) {
return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
})(nodeInterop);
}
function _interop_require_wildcard(obj, nodeInterop) {
if (!nodeInterop && obj && obj.__esModule) {
return obj;
}
if (obj === null || typeof obj !== "object" && typeof obj !== "function") {
return {
default: obj
};
}
var cache = _getRequireWildcardCache(nodeInterop);
if (cache && cache.has(obj)) {
return cache.get(obj);
}
var newObj = {
__proto__: null
};
var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
for(var key in obj){
if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) {
var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null;
if (desc && (desc.get || desc.set)) {
Object.defineProperty(newObj, key, desc);
} else {
newObj[key] = obj[key];
}
}
}
newObj.default = obj;
if (cache) {
cache.set(obj, newObj);
}
return newObj;
}
const RETRY_DELAY_MS = 10;
const MAX_RETRY_MS = 1000;
function readLockfileContent(lockfilePath) {
try {
return _fs.default.readFileSync(lockfilePath, 'utf-8');
} catch {
return undefined;
}
}
function parseDevServerInfo(content) {
try {
return JSON.parse(content);
} catch {
return undefined;
}
}
class Lockfile {
constructor(bindings, nativeLockfile){
this.bindings = bindings;
this.nativeLockfile = nativeLockfile;
}
/**
* Attempts to create or acquire an exclusive lockfile on disk. Lockfiles are
* best-effort, depending on the platform.
*
* - If we fail to acquire the lock, we return `undefined`.
* - If we're on wasm, this always returns a dummy `Lockfile` object.
*
* @param path - Path to the lock file
* @param unlockOnExit - Whether to unlock the file on process exit
* @param content - Optional content to write to the lockfile (e.g., JSON with server info)
*/ static tryAcquire(path, unlockOnExit = true, content) {
const bindings = (0, _swc.getBindingsSync)();
if (bindings.isWasm) {
_log.info(`Skipping creating a lockfile at ${(0, _picocolors.cyan)(path)} because we're using WASM bindings`);
return new Lockfile(bindings, undefined);
} else {
let nativeLockfile;
try {
nativeLockfile = bindings.lockfileTryAcquireSync(path, content);
} catch (e) {
// this happens if there's an IO error (e.g. `ENOENT`), which is
// different than if we just didn't acquire the lock
throw Object.defineProperty(new Error('An IO error occurred while attempting to create and acquire the lockfile', {
cause: e
}), "__NEXT_ERROR_CODE", {
value: "E859",
enumerable: false,
configurable: true
});
}
if (nativeLockfile != null) {
const jsLockfile = new Lockfile(bindings, nativeLockfile);
if (unlockOnExit) {
const exitListener = ()=>{
// Best-Effort: If we don't do this, the operating system will
// release the lock for us. This gives an opportunity to delete the
// unlocked lockfile (which is not otherwise deleted on POSIX).
//
// This must be synchronous because `process.on('exit', ...)` is
// synchronous.
jsLockfile.unlockSync();
};
process.on('exit', exitListener);
jsLockfile.listener = exitListener;
}
return jsLockfile;
} else {
return undefined;
}
}
}
/**
* Attempts to create or acquire a lockfile using `Lockfile.tryAcquire`. If
* that returns `undefined`, indicating that another process or caller has the
* lockfile, then this will output an error message and exit the process with
* a non-zero exit code.
*
* This will retry a small number of times. This can be useful when running
* processes in a loop, e.g. if cleanup isn't fully synchronous due to child
* parent/processes.
*
* @param path - Path to the lock file
* @param processName - Name of the process for error messages (e.g., 'next dev')
* @param unlockOnExit - Whether to unlock the file on process exit
* @param content - Optional content to write to the lockfile (e.g., JSON with server info)
* @param projectDir - Optional project directory for enhanced error messages
* @param relativeDistDir - Optional relative dist directory path (e.g., '.next/dev')
*/ static async acquireWithRetriesOrExit(path, processName, unlockOnExit = true, content, projectDir, relativeDistDir) {
const startMs = Date.now();
let lockfile;
while(Date.now() - startMs < MAX_RETRY_MS){
lockfile = Lockfile.tryAcquire(path, unlockOnExit, content);
if (lockfile !== undefined) break;
await new Promise((resolve)=>setTimeout(resolve, RETRY_DELAY_MS));
}
if (lockfile === undefined) {
const isDev = processName === 'next dev';
if (isDev) {
// For dev server, try to read server info from the lockfile itself
const lockfileContent = readLockfileContent(path);
const serverInfo = lockfileContent ? parseDevServerInfo(lockfileContent) : undefined;
if (serverInfo) {
_log.error(`Another ${(0, _picocolors.cyan)(processName)} server is already running.`);
console.error();
console.error(`- Local: ${(0, _picocolors.cyan)(serverInfo.appUrl)}`);
console.error(`- PID: ${serverInfo.pid}`);
if (projectDir) {
console.error(`- Dir: ${projectDir}`);
}
if (relativeDistDir) {
console.error(`- Log: ${_path.default.join(relativeDistDir, 'logs', 'next-development.log')}`);
}
console.error();
// Use platform-appropriate kill command
const killCommand = process.platform === 'win32' ? `taskkill /PID ${serverInfo.pid} /F` : `kill ${serverInfo.pid}`;
console.error(`Run ${(0, _picocolors.cyan)(killCommand)} to stop it.`);
} else {
// Fallback when we can't read server info from the lockfile
_log.error(`Another ${(0, _picocolors.cyan)(processName)} server is already running in this directory.`);
console.error(`Stop the other server before starting a new one.`);
}
} else {
// For build, show that a build is in progress
_log.error(`Another ${(0, _picocolors.cyan)(processName)} process is already running.`);
console.error();
console.error(` This could be:`);
console.error(` - A ${(0, _picocolors.cyan)('next build')} still in progress`);
console.error(` - A previous build that didn't exit cleanly`);
console.error();
_log.info(`${(0, _picocolors.bold)('Suggestion:')} Wait for the build to complete.`);
}
process.exit(1);
}
return lockfile;
}
/**
* Releases the lockfile and closes the file descriptor.
*
* If this is not called, the lock will be released by the operating system
* when the file handle is closed during process exit.
*/ async unlock() {
const { nativeLockfile, listener } = this;
if (nativeLockfile !== undefined) {
await this.bindings.lockfileUnlock(nativeLockfile);
}
if (listener !== undefined) {
process.off('exit', listener);
}
}
/**
* A blocking version of `unlock`.
*/ unlockSync() {
const { nativeLockfile, listener } = this;
if (nativeLockfile !== undefined) {
this.bindings.lockfileUnlockSync(nativeLockfile);
}
if (listener !== undefined) {
process.off('exit', listener);
}
}
}
//# sourceMappingURL=lockfile.js.map