wangjia
805bf8e2ca
- design/prototype/serve.mjs:零依赖热重载预览服务器(照搬 jiu,check-ds 存在性守护,Phase 5 前静默跳过) - design/prototype/tokens.css:token 真源(现结构已满足 ds-flow 的 base :root + [data-theme=dark],字节迁移保证 codegen 零 diff) - design/colors_and_type.css:退化为薄 @import 别名(供历史 preview/*.html 浏览器内引用;codegen 不再读它) - 三个 codegen(Flutter gen_flutter_tokens / website+usercenter build-tokens) + drift 检查全部重指向 prototype/tokens.css - 生成产物 diff 仅头注释源路径行,token 数值零变化(已验证) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
98 lines
3.4 KiB
JavaScript
98 lines
3.4 KiB
JavaScript
// 零依赖本地热重载静态服务器 — pangolin 原型单源预览
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// 用法: node design/prototype/serve.mjs [port] 默认 5180
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// 评审给 URL,不截图(ds-flow L3)。
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import http from 'node:http';
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import fs from 'node:fs';
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import path from 'node:path';
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import { fileURLToPath } from 'node:url';
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import { spawn } from 'node:child_process';
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const ROOT = path.dirname(fileURLToPath(import.meta.url));
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const PORT = Number(process.argv[2]) || 5180;
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const MIME = {
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'.html': 'text/html; charset=utf-8',
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'.css': 'text/css; charset=utf-8',
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'.js': 'text/javascript; charset=utf-8',
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'.mjs': 'text/javascript; charset=utf-8',
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'.json': 'application/json; charset=utf-8',
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'.svg': 'image/svg+xml',
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'.png': 'image/png',
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'.jpg': 'image/jpeg',
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'.woff2': 'font/woff2',
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'.otf': 'font/otf',
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'.ttf': 'font/ttf',
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};
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const clients = new Set();
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const RELOAD_SNIPPET = `\n<script>
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(function(){ try{
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var es=new EventSource('/__reload');
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es.onmessage=function(){ location.reload(); };
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}catch(e){} })();
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</script>\n`;
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const server = http.createServer((req, res) => {
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if (req.url === '/__reload') {
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res.writeHead(200, {
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'Content-Type': 'text/event-stream',
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'Cache-Control': 'no-cache',
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Connection: 'keep-alive',
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});
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res.write('retry: 500\n\n');
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clients.add(res);
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req.on('close', () => clients.delete(res));
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return;
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}
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let urlPath = decodeURIComponent(req.url.split('?')[0]);
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if (urlPath === '/') urlPath = '/index.html';
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const filePath = path.join(ROOT, urlPath);
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if (!filePath.startsWith(ROOT)) { res.writeHead(403); res.end('forbidden'); return; }
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fs.readFile(filePath, (err, data) => {
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if (err) { res.writeHead(404, { 'Content-Type': 'text/html; charset=utf-8' }); res.end('<h1>404</h1>'); return; }
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const ext = path.extname(filePath).toLowerCase();
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const mime = MIME[ext] || 'application/octet-stream';
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const noCache = { 'Cache-Control': 'no-store, no-cache, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0' };
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if (ext === '.html') {
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const html = data.toString('utf8').replace('</body>', RELOAD_SNIPPET + '</body>');
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res.writeHead(200, { 'Content-Type': mime, ...noCache });
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res.end(html);
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} else {
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res.writeHead(200, { 'Content-Type': mime, ...noCache });
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res.end(data);
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}
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});
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});
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// 设计系统守门:启动 + 每次改动自动跑 check-ds.mjs(Phase 5 建立后生效)。
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const CHECK_DS = path.join(ROOT, 'tools', 'check-ds.mjs');
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function runDsCheck() {
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if (!fs.existsSync(CHECK_DS)) return; // Phase 5 前无闸,静默跳过
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const p = spawn(process.execPath, [CHECK_DS], { cwd: ROOT });
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let out = '';
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p.stdout.on('data', d => out += d);
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p.stderr.on('data', d => out += d);
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p.on('close', code => {
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const t = new Date().toLocaleTimeString();
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if (code === 0) console.log(`\x1b[32m[设计系统 ✓ ${t}] 颜色全部走 token、变量均已定义\x1b[0m`);
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else console.log(`\x1b[31m[设计系统 ✗ ${t}] 存在违规 —— 运行 node tools/check-ds.mjs 看详情\x1b[0m`);
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});
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}
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let debounce;
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fs.watch(ROOT, { recursive: true }, (_ev, file) => {
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if (file && file.endsWith('serve.mjs')) return;
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clearTimeout(debounce);
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debounce = setTimeout(() => {
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for (const c of clients) c.write('data: reload\n\n');
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if (file && /\.(html|css|js)$/.test(file)) runDsCheck();
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}, 80);
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});
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server.listen(PORT, () => {
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console.log(`prototype live at http://localhost:${PORT}/ (watching ${ROOT})`);
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runDsCheck();
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});
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