a27e3b8e43
Optimized the root .gitignore to exclude virtual environments, node modules, and temp folders to ensure clean and lightweight version tracking. Co-authored-by: Cursor <cursoragent@cursor.com>
113 lines
3.5 KiB
TypeScript
113 lines
3.5 KiB
TypeScript
import type { IncomingMessage, ServerResponse } from 'http';
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import fs from 'fs';
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import path from 'path';
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import { execa } from 'execa';
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import { readEntriesManifest } from '../../utils/entriesManifest';
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/**
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* 构建锁：防止同一入口并发构建，防止多个构建同时阻塞资源。
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* key = urlPath, value = Promise（当前正在构建的 Promise）
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*/
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const activeBuildMap = new Map<string, Promise<{ js: string } | null>>();
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/** 构建超时时间（毫秒） */
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const BUILD_TIMEOUT_MS = 120_000; // 2 分钟
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async function runBuild(urlPath: string, projectRoot: string): Promise<{ js: string } | null> {
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try {
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const buildProcess = execa('npx', ['vite', 'build'], {
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cwd: projectRoot,
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env: { ...process.env, ENTRY_KEY: urlPath },
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timeout: BUILD_TIMEOUT_MS,
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});
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await buildProcess;
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const builtFilePath = path.resolve(projectRoot, 'dist', `${urlPath}.js`);
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if (fs.existsSync(builtFilePath)) {
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const jsContent = fs.readFileSync(builtFilePath, 'utf8');
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console.log(`✅ 构建成功: ${urlPath}`);
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return { js: jsContent };
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}
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console.error('构建文件不存在:', builtFilePath);
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return null;
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} catch (error: any) {
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if (error.timedOut) {
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console.error(`⏰ 构建超时 (${BUILD_TIMEOUT_MS / 1000}s): ${urlPath}`);
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} else {
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console.error(`❌ 构建失败: ${urlPath}`);
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console.error('错误信息:', error.message);
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if (error.stderr) {
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console.error('stderr:', error.stderr);
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}
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}
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return null;
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} finally {
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activeBuildMap.delete(urlPath);
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}
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}
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export function handleBuildRequest(req: IncomingMessage, res: ServerResponse): boolean {
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if (req.url && req.url.startsWith('/build/') && req.url.endsWith('.js')) {
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const encodedUrlPath = req.url.replace('/build/', '').replace('.js', '');
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const urlPath = decodeURIComponent(encodedUrlPath);
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const projectRoot = process.cwd();
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const directEntryPath = path.resolve(projectRoot, 'src', urlPath, 'index.tsx');
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let hasEntry = fs.existsSync(directEntryPath);
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if (!hasEntry) {
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try {
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const manifest = readEntriesManifest(projectRoot);
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const item = manifest.items?.[urlPath];
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if (item?.js) {
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const manifestEntryPath = path.resolve(projectRoot, item.js);
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hasEntry = fs.existsSync(manifestEntryPath);
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}
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} catch {
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hasEntry = false;
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}
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}
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if (hasEntry) {
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console.log(`\n🔨 开始构建: ${urlPath}`);
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// 如果同一入口已经在构建中，复用其 Promise，不重复启动
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let buildPromise = activeBuildMap.get(urlPath);
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if (!buildPromise) {
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buildPromise = runBuild(urlPath, projectRoot);
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activeBuildMap.set(urlPath, buildPromise);
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} else {
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console.log(`⏳ 复用进行中的构建: ${urlPath}`);
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}
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buildPromise
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.then((result) => {
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if (result) {
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res.setHeader('Content-Type', 'application/javascript');
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res.setHeader('Cache-Control', 'no-cache');
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res.statusCode = 200;
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res.end(result.js);
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} else {
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res.statusCode = 500;
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res.setHeader('Content-Type', 'text/plain');
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res.end(`Build failed for ${urlPath}`);
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}
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})
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.catch((err) => {
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res.statusCode = 500;
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res.setHeader('Content-Type', 'text/plain');
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res.end(`Build failed for ${urlPath}\n${err.message}`);
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});
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return true;
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}
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res.statusCode = 404;
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res.end('Not Found');
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return true;
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}
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return false;
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}
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