344 lines
13 KiB
Plaintext
344 lines
13 KiB
Plaintext
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import { __awaiter } from "tslib";
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import { createHash } from 'node:crypto';
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import fs from 'node:fs';
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import { createRequire } from 'node:module';
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import path from 'node:path';
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import { fileURLToPath, pathToFileURL } from 'node:url';
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import { MessageChannel, Worker, parentPort, receiveMessageOnPort, workerData, } from 'node:worker_threads';
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import { findUp, isPkgAvailable, tryExtensions } from '@pkgr/core';
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const INT32_BYTES = 4;
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export * from './types.js';
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export const TsRunner = {
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TsNode: 'ts-node',
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EsbuildRegister: 'esbuild-register',
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EsbuildRunner: 'esbuild-runner',
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SWC: 'swc',
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TSX: 'tsx',
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};
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const { NODE_OPTIONS, SYNCKIT_EXEC_ARGV, SYNCKIT_GLOBAL_SHIMS, SYNCKIT_TIMEOUT, SYNCKIT_TS_RUNNER, } = process.env;
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export const DEFAULT_TIMEOUT = SYNCKIT_TIMEOUT ? +SYNCKIT_TIMEOUT : undefined;
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export const DEFAULT_EXEC_ARGV = (SYNCKIT_EXEC_ARGV === null || SYNCKIT_EXEC_ARGV === void 0 ? void 0 : SYNCKIT_EXEC_ARGV.split(',')) || [];
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export const DEFAULT_TS_RUNNER = SYNCKIT_TS_RUNNER;
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export const DEFAULT_GLOBAL_SHIMS = ['1', 'true'].includes(SYNCKIT_GLOBAL_SHIMS);
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export const DEFAULT_GLOBAL_SHIMS_PRESET = [
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{
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moduleName: 'node-fetch',
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globalName: 'fetch',
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},
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{
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moduleName: 'node:perf_hooks',
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globalName: 'performance',
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named: 'performance',
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},
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];
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export const MTS_SUPPORTED_NODE_VERSION = 16;
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let syncFnCache;
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export function extractProperties(object) {
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if (object && typeof object === 'object') {
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const properties = {};
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for (const key in object) {
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properties[key] = object[key];
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}
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return properties;
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}
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}
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export function createSyncFn(workerPath, timeoutOrOptions) {
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syncFnCache !== null && syncFnCache !== void 0 ? syncFnCache : (syncFnCache = new Map());
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const cachedSyncFn = syncFnCache.get(workerPath);
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if (cachedSyncFn) {
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return cachedSyncFn;
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}
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if (!path.isAbsolute(workerPath)) {
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throw new Error('`workerPath` must be absolute');
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}
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const syncFn = startWorkerThread(workerPath, typeof timeoutOrOptions === 'number'
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? { timeout: timeoutOrOptions }
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: timeoutOrOptions);
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syncFnCache.set(workerPath, syncFn);
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return syncFn;
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}
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const cjsRequire = typeof require === 'undefined'
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? createRequire(import.meta.url)
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: require;
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const dataUrl = (code) => new URL(`data:text/javascript,${encodeURIComponent(code)}`);
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export const isFile = (path) => {
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var _a;
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try {
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return !!((_a = fs.statSync(path, { throwIfNoEntry: false })) === null || _a === void 0 ? void 0 : _a.isFile());
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}
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catch (_b) {
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return false;
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}
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};
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const setupTsRunner = (workerPath, { execArgv, tsRunner }) => {
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let ext = path.extname(workerPath);
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if (!/[/\\]node_modules[/\\]/.test(workerPath) &&
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(!ext || /^\.[cm]?js$/.test(ext))) {
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const workPathWithoutExt = ext
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? workerPath.slice(0, -ext.length)
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: workerPath;
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let extensions;
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switch (ext) {
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case '.cjs': {
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extensions = ['.cts', '.cjs'];
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break;
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}
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case '.mjs': {
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extensions = ['.mts', '.mjs'];
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break;
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}
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default: {
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extensions = ['.ts', '.js'];
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break;
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}
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}
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const found = tryExtensions(workPathWithoutExt, extensions);
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let differentExt;
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if (found && (!ext || (differentExt = found !== workPathWithoutExt))) {
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workerPath = found;
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if (differentExt) {
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ext = path.extname(workerPath);
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}
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}
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}
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const isTs = /\.[cm]?ts$/.test(workerPath);
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let jsUseEsm = workerPath.endsWith('.mjs');
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let tsUseEsm = workerPath.endsWith('.mts');
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if (isTs) {
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if (!tsUseEsm) {
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const pkg = findUp(workerPath);
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if (pkg) {
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tsUseEsm =
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cjsRequire(pkg).type ===
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'module';
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}
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}
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if (tsRunner == null && isPkgAvailable(TsRunner.TsNode)) {
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tsRunner = TsRunner.TsNode;
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}
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switch (tsRunner) {
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case TsRunner.TsNode: {
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if (tsUseEsm) {
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if (!execArgv.includes('--loader')) {
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execArgv = ['--loader', `${TsRunner.TsNode}/esm`, ...execArgv];
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}
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}
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else if (!execArgv.includes('-r')) {
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execArgv = ['-r', `${TsRunner.TsNode}/register`, ...execArgv];
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}
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break;
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}
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case TsRunner.EsbuildRegister: {
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if (!execArgv.includes('-r')) {
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execArgv = ['-r', TsRunner.EsbuildRegister, ...execArgv];
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}
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break;
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}
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case TsRunner.EsbuildRunner: {
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if (!execArgv.includes('-r')) {
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execArgv = ['-r', `${TsRunner.EsbuildRunner}/register`, ...execArgv];
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}
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break;
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}
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case TsRunner.SWC: {
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if (!execArgv.includes('-r')) {
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execArgv = ['-r', `@${TsRunner.SWC}-node/register`, ...execArgv];
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}
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break;
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}
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case TsRunner.TSX: {
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if (!execArgv.includes('--loader')) {
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execArgv = ['--loader', TsRunner.TSX, ...execArgv];
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}
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break;
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}
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default: {
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throw new Error(`Unknown ts runner: ${String(tsRunner)}`);
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}
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}
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}
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else if (!jsUseEsm) {
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const pkg = findUp(workerPath);
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if (pkg) {
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jsUseEsm =
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cjsRequire(pkg).type === 'module';
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}
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}
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if (process.versions.pnp) {
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const nodeOptions = NODE_OPTIONS === null || NODE_OPTIONS === void 0 ? void 0 : NODE_OPTIONS.split(/\s+/);
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let pnpApiPath;
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try {
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pnpApiPath = cjsRequire.resolve('pnpapi');
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}
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catch (_a) { }
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if (pnpApiPath &&
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!(nodeOptions === null || nodeOptions === void 0 ? void 0 : nodeOptions.some((option, index) => ['-r', '--require'].includes(option) &&
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pnpApiPath === cjsRequire.resolve(nodeOptions[index + 1]))) &&
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!execArgv.includes(pnpApiPath)) {
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execArgv = ['-r', pnpApiPath, ...execArgv];
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const pnpLoaderPath = path.resolve(pnpApiPath, '../.pnp.loader.mjs');
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if (isFile(pnpLoaderPath)) {
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const experimentalLoader = pathToFileURL(pnpLoaderPath).toString();
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execArgv = ['--experimental-loader', experimentalLoader, ...execArgv];
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}
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}
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}
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return {
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ext,
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isTs,
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jsUseEsm,
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tsRunner,
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tsUseEsm,
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workerPath,
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execArgv,
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};
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};
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const md5Hash = (text) => createHash('md5').update(text).digest('hex');
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export const encodeImportModule = (moduleNameOrGlobalShim, type = 'import') => {
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const { moduleName, globalName, named, conditional } = typeof moduleNameOrGlobalShim === 'string'
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? { moduleName: moduleNameOrGlobalShim }
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: moduleNameOrGlobalShim;
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const importStatement = type === 'import'
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? `import${globalName
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? ' ' +
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(named === null
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? '* as ' + globalName
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: (named === null || named === void 0 ? void 0 : named.trim())
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? `{${named}}`
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: globalName) +
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' from'
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: ''} '${path.isAbsolute(moduleName)
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? String(pathToFileURL(moduleName))
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: moduleName}'`
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: `${globalName
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? 'const ' + ((named === null || named === void 0 ? void 0 : named.trim()) ? `{${named}}` : globalName) + '='
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: ''}require('${moduleName
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.replace(/\\/g, '\\\\')}')`;
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if (!globalName) {
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return importStatement;
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}
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const overrideStatement = `globalThis.${globalName}=${(named === null || named === void 0 ? void 0 : named.trim()) ? named : globalName}`;
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return (importStatement +
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(conditional === false
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? `;${overrideStatement}`
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: `;if(!globalThis.${globalName})${overrideStatement}`));
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};
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export const _generateGlobals = (globalShims, type) => globalShims.reduce((acc, shim) => `${acc}${acc ? ';' : ''}${encodeImportModule(shim, type)}`, '');
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let globalsCache;
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let tmpdir;
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const _dirname = typeof __dirname === 'undefined'
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? path.dirname(fileURLToPath(import.meta.url))
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: __dirname;
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let sharedBuffer;
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let sharedBufferView;
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export const generateGlobals = (workerPath, globalShims, type = 'import') => {
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globalsCache !== null && globalsCache !== void 0 ? globalsCache : (globalsCache = new Map());
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const cached = globalsCache.get(workerPath);
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if (cached) {
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const [content, filepath] = cached;
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if ((type === 'require' && !filepath) ||
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(type === 'import' && filepath && isFile(filepath))) {
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return content;
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}
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}
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const globals = _generateGlobals(globalShims, type);
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let content = globals;
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let filepath;
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if (type === 'import') {
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if (!tmpdir) {
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tmpdir = path.resolve(findUp(_dirname), '../node_modules/.synckit');
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}
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fs.mkdirSync(tmpdir, { recursive: true });
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filepath = path.resolve(tmpdir, md5Hash(workerPath) + '.mjs');
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content = encodeImportModule(filepath);
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fs.writeFileSync(filepath, globals);
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}
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globalsCache.set(workerPath, [content, filepath]);
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return content;
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};
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function startWorkerThread(workerPath, { timeout = DEFAULT_TIMEOUT, execArgv = DEFAULT_EXEC_ARGV, tsRunner = DEFAULT_TS_RUNNER, transferList = [], globalShims = DEFAULT_GLOBAL_SHIMS, } = {}) {
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const { port1: mainPort, port2: workerPort } = new MessageChannel();
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const { isTs, ext, jsUseEsm, tsUseEsm, tsRunner: finalTsRunner, workerPath: finalWorkerPath, execArgv: finalExecArgv, } = setupTsRunner(workerPath, { execArgv, tsRunner });
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const workerPathUrl = pathToFileURL(finalWorkerPath);
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if (/\.[cm]ts$/.test(finalWorkerPath)) {
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const isTsxSupported = !tsUseEsm ||
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Number.parseFloat(process.versions.node) >= MTS_SUPPORTED_NODE_VERSION;
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if (!finalTsRunner) {
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throw new Error('No ts runner specified, ts worker path is not supported');
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}
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else if ([
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TsRunner.EsbuildRegister,
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TsRunner.EsbuildRunner,
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TsRunner.SWC,
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...(isTsxSupported ? [] : [TsRunner.TSX]),
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].includes(finalTsRunner)) {
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throw new Error(`${finalTsRunner} is not supported for ${ext} files yet` +
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(isTsxSupported
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? ', you can try [tsx](https://github.com/esbuild-kit/tsx) instead'
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: ''));
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}
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}
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const finalGlobalShims = (globalShims === true
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? DEFAULT_GLOBAL_SHIMS_PRESET
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: Array.isArray(globalShims)
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? globalShims
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: []).filter(({ moduleName }) => isPkgAvailable(moduleName));
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sharedBufferView !== null && sharedBufferView !== void 0 ? sharedBufferView : (sharedBufferView = new Int32Array((sharedBuffer !== null && sharedBuffer !== void 0 ? sharedBuffer : (sharedBuffer = new SharedArrayBuffer(INT32_BYTES))), 0, 1));
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const useGlobals = finalGlobalShims.length > 0;
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const useEval = isTs ? !tsUseEsm : !jsUseEsm && useGlobals;
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const worker = new Worker((jsUseEsm && useGlobals) || (tsUseEsm && finalTsRunner === TsRunner.TsNode)
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? dataUrl(`${generateGlobals(finalWorkerPath, finalGlobalShims)};import '${String(workerPathUrl)}'`)
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: useEval
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? `${generateGlobals(finalWorkerPath, finalGlobalShims, 'require')};${encodeImportModule(finalWorkerPath, 'require')}`
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: workerPathUrl, {
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eval: useEval,
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workerData: { sharedBuffer, workerPort },
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transferList: [workerPort, ...transferList],
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execArgv: finalExecArgv,
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});
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let nextID = 0;
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const syncFn = (...args) => {
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const id = nextID++;
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const msg = { id, args };
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worker.postMessage(msg);
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const status = Atomics.wait(sharedBufferView, 0, 0, timeout);
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Atomics.store(sharedBufferView, 0, 0);
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if (!['ok', 'not-equal'].includes(status)) {
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throw new Error('Internal error: Atomics.wait() failed: ' + status);
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}
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const { id: id2, result, error, properties, } = receiveMessageOnPort(mainPort)
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.message;
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if (id !== id2) {
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throw new Error(`Internal error: Expected id ${id} but got id ${id2}`);
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}
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if (error) {
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throw Object.assign(error, properties);
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}
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return result;
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};
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worker.unref();
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return syncFn;
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}
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export function runAsWorker(fn) {
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if (!workerData) {
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return;
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}
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const { workerPort, sharedBuffer } = workerData;
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const sharedBufferView = new Int32Array(sharedBuffer, 0, 1);
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parentPort.on('message', ({ id, args }) => {
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;
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(() => __awaiter(this, void 0, void 0, function* () {
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let msg;
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try {
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msg = { id, result: yield fn(...args) };
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}
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catch (error) {
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msg = { id, error, properties: extractProperties(error) };
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}
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workerPort.postMessage(msg);
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Atomics.add(sharedBufferView, 0, 1);
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Atomics.notify(sharedBufferView, 0);
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}))();
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});
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}
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