337 lines
13 KiB
JavaScript
337 lines
13 KiB
JavaScript
// P4：`data.js` 瘦身 —— 分步降低运行时对源码全文的依赖
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//
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// 背景（实测）：
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// data.json 991KB，其中 components[].sources 占 888KB（89.6%）
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// 各端源码量：html 245KB / vue2 184KB / vue3 181KB / jsx 155KB / css 119KB
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//
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// 哪些 sources 被【渲染期同步】消费（改造难点）：
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// extractComponentAPI → vue3 / vue2 / jsx（3 端）
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// extractScenarios → html（1 端）
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// css → 不参与任何解析（可安全分离）
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//
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// 策略：
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// 阶段 A —— 预计算 scenarios，验证「构建期预计算 + 运行时回退」链路可行
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// 阶段 B —— 分离 css 到独立文件（零风险，不参与解析）
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// 阶段 C —— 预计算 API 表（props/emits/slots），再分离 html/jsx/vue2/vue3
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//
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// 设计原则：运行时保留回退路径，预计算缺失时功能不受影响。
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import { readFileSync, writeFileSync, existsSync, mkdirSync } from 'fs';
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const ROOT = 'C:/Users/12914/Desktop/组件规范第一套';
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const DATA_JSON = `${ROOT}/site/data.json`;
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const DATA_JS = `${ROOT}/site/data.js`;
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const SRC_DIR = `${ROOT}/site/sources`;
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if (!existsSync(DATA_JSON)) {
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console.error('[FATAL] 找不到 site/data.json，请先运行 build-site.ps1');
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process.exit(1);
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}
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const data = JSON.parse(readFileSync(DATA_JSON, 'utf8'));
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/* 与 app.js 的 extractScenarios 完全一致（保证结果可复现） */
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function extractScenarios(c) {
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const html = (c.sources && c.sources.html) || '';
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const bodyM = html.match(/<body[^>]*>([\s\S]*)<\/body>/i);
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const body = bodyM ? bodyM[1] : html;
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const out = [];
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const re = /<h2[^>]*>([\s\S]*?)<\/h2>/gi;
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let m;
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while ((m = re.exec(body)) !== null) {
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let text = m[1].replace(/<[^>]+>/g, '').replace(/\s+/g, ' ').trim();
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text = text.replace(/^\d+[.、]\s*/, '');
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if (text) out.push(text);
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}
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return out;
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}
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/* ---------- 阶段 A：预计算 scenarios ---------- */
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let withScenarios = 0;
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let totalScenarios = 0;
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for (const c of data.components) {
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const s = extractScenarios(c);
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c.scenarios = s;
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totalScenarios += s.length;
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if (s.length >= 2) withScenarios++; // app.js 的 buildScenarioCard 要求 >= 2
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}
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console.log(`[precompute] 阶段A · scenarios：${totalScenarios} 条 / ${withScenarios} 个组件有 ≥2 条`);
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/* ---------- 与 app.js 的 extractComponentAPI 逐行一致 ----------
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唯一差别：desc 存中文源串（不调 T），运行时由 app.js 包 T() 做中英映射。
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这样中文模式输出与今天逐字节一致，英文模式仍能查字典翻译。
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slots 额外存 custom 标记：自定义插槽的 desc 需按 name + 后缀动态拼接，
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不能存拼接后的整串（否则英文模式查不到字典）。 */
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function scanObjectAt(src, openIdx) {
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let depth = 0, inStr = null, escCh = false, end = -1;
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for (let i = openIdx; i < src.length; i++) {
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const ch = src.charAt(i);
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if (inStr) {
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if (escCh) { escCh = false; continue; }
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if (ch === '\\') { escCh = true; continue; }
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if (ch === inStr) inStr = null;
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continue;
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}
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if (ch === '"' || ch === "'" || ch === '`') { inStr = ch; continue; }
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if (ch === '{') depth++;
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else if (ch === '}') { depth--; if (depth === 0) { end = i; break; } }
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}
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return end < 0 ? null : src.slice(openIdx, end + 1);
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}
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function stripOuterBraces(s) { return s.replace(/^\s*\{/, '').replace(/\}\s*$/, ''); }
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function splitTopLevel(body) {
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const segs = [];
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let cur = '', depth = 0, inStr = null, escCh = false;
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for (let i = 0; i < body.length; i++) {
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const ch = body.charAt(i);
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if (inStr) {
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cur += ch;
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if (escCh) { escCh = false; continue; }
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if (ch === '\\') { escCh = true; continue; }
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if (ch === inStr) inStr = null;
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continue;
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}
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if (ch === '"' || ch === "'" || ch === '`') { inStr = ch; cur += ch; continue; }
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if (ch === '{' || ch === '[' || ch === '(') { depth++; cur += ch; continue; }
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if (ch === '}' || ch === ']' || ch === ')') { depth--; cur += ch; continue; }
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if (ch === ',' && depth === 0) { segs.push(cur); cur = ''; continue; }
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cur += ch;
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}
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if (cur.trim()) segs.push(cur);
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return segs;
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}
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function scanTopLevelValue(str) {
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let depth = 0, inStr = null, escCh = false;
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for (let i = 0; i < str.length; i++) {
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const ch = str.charAt(i);
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if (inStr) {
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if (escCh) { escCh = false; continue; }
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if (ch === '\\') { escCh = true; continue; }
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if (ch === inStr) inStr = null;
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continue;
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}
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if (ch === '"' || ch === "'" || ch === '`') { inStr = ch; continue; }
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if (ch === '{' || ch === '[' || ch === '(') depth++;
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else if (ch === '}' || ch === ']' || ch === ')') { if (depth === 0) return str.slice(0, i); depth--; }
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else if (ch === ',' && depth === 0) return str.slice(0, i);
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}
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return str;
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}
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function finalizeProp(p) {
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let type = 'any';
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let def = '—';
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let req = false;
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const typeM = p.raw.match(/type\s*:\s*(\[[^\]]+\]|[a-zA-Z0-9_$]+)/);
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if (typeM) type = typeM[1].replace(/\[|\]/g, '').replace(/,\s*/g, ' | ');
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const defM = /default\s*:/.exec(p.raw);
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if (defM) {
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let val = scanTopLevelValue(p.raw.slice(defM.index + defM[0].length)).trim();
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def = val.replace(/\(\)\s*=>\s*/, '') || '—';
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if (def === '()') def = '—';
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def = def.replace(/\s*\n\s*/g, ' ').replace(/\s{2,}/g, ' ');
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if (def.length > 48) def = def.slice(0, 45) + '…';
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}
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if (/required\s*:\s*true/.test(p.raw)) req = true;
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return { name: p.name, type, def, req, desc: p.comment || '—' };
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}
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function extractComponentAPI(c) {
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const v3 = (c.sources && c.sources.vue3) || '';
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const v2 = (c.sources && c.sources.vue2) || '';
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const jsx = (c.sources && c.sources.jsx) || '';
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const code = v3 || v2;
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const props = [];
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const emits = [];
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const slots = [];
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let propsBody = null;
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const dpM = /defineProps\s*\(/.exec(code);
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if (dpM) {
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const openIdx = code.indexOf('{', dpM.index);
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if (openIdx >= 0) propsBody = stripOuterBraces(scanObjectAt(code, openIdx) || '');
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}
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if (!propsBody) {
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const prM = /props\s*:\s*\{/.exec(code);
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if (prM) {
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const openIdx2 = prM.index + prM[0].length - 1;
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propsBody = stripOuterBraces(scanObjectAt(code, openIdx2) || '');
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}
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}
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if (propsBody && propsBody.trim()) {
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splitTopLevel(propsBody).forEach((seg) => {
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const m = seg.match(/^\s*([a-zA-Z0-9_$]+)\s*:\s*([\s\S]*)$/);
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if (!m) return;
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const cM = m[2].match(/\/\/\s*([^\n]+)\s*$/);
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props.push(finalizeProp({ name: m[1], comment: cM ? cM[1].trim() : '', raw: m[2] }));
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});
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} else if (jsx) {
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const fnM = jsx.match(/export default function\s+[A-Za-z0-9_$]+\s*\(\s*\{([^}]+)\}/);
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if (fnM) {
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fnM[1].split(',').forEach((param) => {
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const p = param.trim();
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if (!p || p.indexOf('...') === 0) return;
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const parts = p.split('=');
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const name = parts[0].trim();
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const def = parts[1] ? parts[1].trim() : '—';
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if (name.indexOf('on') === 0 && /[A-Z]/.test(name.charAt(2))) {
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emits.push({ name, descZh: '回调触发事件 (Event callback)', params: '(event: any) => void' });
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} else if (name === 'children') {
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slots.push({ name: 'default', descZh: '子节点内容 (children)', custom: false });
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} else {
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props.push({ name, type: 'any', def, req: false, desc: '—' });
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}
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});
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}
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}
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const mEmits = code.match(/defineEmits\s*\(\s*(\[[^\]]+\])\s*\)/);
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if (mEmits) {
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try {
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const emitArr = (new Function('return ' + mEmits[1]))();
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emitArr.forEach((e) => {
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const descZh = e.indexOf('update:') === 0 ? '双向绑定更新事件 (v-model)' : '组件交互触发事件';
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if (!emits.some((x) => x.name === e)) {
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emits.push({ name: e, descZh, params: '(val: any) => void' });
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}
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});
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} catch (err) { /* ignore */ }
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}
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const emitRegex = /\$emit\(\s*['"]([a-zA-Z0-9_:-]+)['"]/g;
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let eMatch;
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while ((eMatch = emitRegex.exec(code)) !== null) {
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const eName = eMatch[1];
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if (!emits.some((x) => x.name === eName)) {
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emits.push({ name: eName, descZh: '交互回调触发事件', params: '—' });
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}
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}
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const slotRegex = /<slot(?:\s+name=["']([^"']+)["'])?/g;
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let sMatch;
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while ((sMatch = slotRegex.exec(code)) !== null) {
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const sName = sMatch[1] || 'default';
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if (!slots.some((x) => x.name === sName)) {
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slots.push(sName === 'default'
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? { name: sName, descZh: '默认插槽（组件文本或主体内容）', custom: false }
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: { name: sName, descZh: '', custom: true });
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}
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}
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return { props, emits, slots };
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}
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/* ---------- 阶段 C：预计算 API 表 ---------- */
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let apiProps = 0, apiEmits = 0, apiSlots = 0, apiComps = 0;
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for (const c of data.components) {
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const api = extractComponentAPI(c);
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c.api = api;
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apiProps += api.props.length;
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apiEmits += api.emits.length;
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apiSlots += api.slots.length;
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if (api.props.length || api.emits.length || api.slots.length) apiComps++;
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}
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console.log(`[precompute] 阶段C · api：${apiComps} 个组件有 API 表（props ${apiProps} / emits ${apiEmits} / slots ${apiSlots}）`);
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/* ---------- 阶段 B：分离 css 源码到独立文件 ----------
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css 不参与任何解析（extractComponentAPI 只读 vue3/vue2/jsx，extractScenarios 只读 html），
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因此可安全移出 data.js，改为按需 fetch。
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data.json 保持完整（For Agents 承诺不变）。 */
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if (!existsSync(SRC_DIR)) mkdirSync(SRC_DIR, { recursive: true });
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/* ---------- 阶段 C-2：分离 html/jsx/vue2/vue3 ----------
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渲染期同步消费已全部被预计算替代：
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- extractComponentAPI → c.api（本文件阶段 C）
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- extractScenarios → c.scenarios（阶段 A）
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剩余消费全是异步安全（代码展示/srcOf、Playground），由 app.js 按需 fetch。 */
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const SPLIT_KINDS = ['html', 'jsx', 'vue2', 'vue3'];
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let splitFiles = 0;
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for (const c of data.components) {
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if (!c.sources) continue;
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for (const kind of SPLIT_KINDS) {
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if (!c.sources[kind]) continue;
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const dir = `${SRC_DIR}/${c.slug}`;
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if (!existsSync(dir)) mkdirSync(dir, { recursive: true });
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writeFileSync(`${dir}/${kind}.txt`, c.sources[kind]);
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splitFiles++;
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}
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}
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console.log(`[precompute] 阶段C-2 · 源码已分离：${splitFiles} 个文件 → site/sources/<slug>/{html,jsx,vue2,vue3}.txt`);
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/* css 分离（阶段 B 保留） */
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let cssSplit = 0;
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for (const c of data.components) {
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if (!c.sources || !c.sources.css) continue;
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const dir = `${SRC_DIR}/${c.slug}`;
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if (!existsSync(dir)) mkdirSync(dir, { recursive: true });
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writeFileSync(`${dir}/css.txt`, c.sources.css);
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cssSplit++;
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}
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console.log(`[precompute] 阶段B · css 已分离：${cssSplit} 个文件 → site/sources/<slug>/css.txt`);
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/* 在 data.js 里把全部 5 端换成引用（data.json 保持完整） */
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const dataForJs = JSON.parse(JSON.stringify(data));
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for (const c of dataForJs.components) {
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if (!c.sources) continue;
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for (const kind of ['html', 'css', 'jsx', 'vue2', 'vue3']) {
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if (c.sources[kind] != null) {
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c.sourcesRef = c.sourcesRef || {};
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c.sourcesRef[kind] = `sources/${c.slug}/${kind}.txt`;
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delete c.sources[kind];
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}
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}
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}
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/* ---------- 阶段 D：分离 contract/specLines/changelog ----------
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data.js 体积 ord：contract 38KB + changelog 11.6KB + specLines 11KB ≈ 60KB。
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外壳只留 hasContract 布尔；详情写 site/details/<slug>.json，日志写 site/changelog.json。
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data.json 保持全量完整（对外承诺不变）。 */
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const DETAILS_DIR = `${ROOT}/site/details`;
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if (!existsSync(DETAILS_DIR)) mkdirSync(DETAILS_DIR, { recursive: true });
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let detailFiles = 0;
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for (const c of dataForJs.components) {
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const detail = {
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slug: c.slug,
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contract: c.contract ?? null,
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specLines: c.specLines ?? [],
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};
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writeFileSync(`${DETAILS_DIR}/${c.slug}.json`, JSON.stringify(detail) + '\n');
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detailFiles++;
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c.hasContract = c.contract != null;
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delete c.contract;
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delete c.specLines;
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}
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console.log(`[precompute] 阶段D · details：${detailFiles} 个文件 → site/details/<slug>.json`);
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const changelogData = { changelog: dataForJs.changelog || [] };
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writeFileSync(`${ROOT}/site/changelog.json`, JSON.stringify(changelogData) + '\n');
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delete dataForJs.changelog;
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console.log(`[precompute] 阶段D · changelog：${changelogData.changelog.length} 条 → site/changelog.json`);
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/* 清理 details 下的孤儿文件（slug 已不存在时删除） */
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import { readdirSync, unlinkSync } from 'fs';
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const validSlugs = new Set(dataForJs.components.map((c) => c.slug));
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let orphans = 0;
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for (const f of readdirSync(DETAILS_DIR)) {
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if (!f.endsWith('.json')) continue;
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if (!validSlugs.has(f.slice(0, -5))) { unlinkSync(`${DETAILS_DIR}/${f}`); orphans++; }
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}
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if (orphans) console.log(`[precompute] 阶段D · 清理孤儿 details：${orphans} 个`);
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/* ---------- 写回 ---------- */
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writeFileSync(DATA_JSON, JSON.stringify(data, null, 2) + '\n');
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const js = '/* AUTO-GENERATED by build-site.ps1 + tools/precompute.mjs - do not edit by hand */\r\nwindow.AA_DATA = ' + JSON.stringify(dataForJs) + ';\r\n';
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writeFileSync(DATA_JS, js);
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const beforeKb = 1058;
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const afterKb = (Buffer.byteLength(js) / 1024).toFixed(0);
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console.log(`[precompute] data.js: ${beforeKb} KB → ${afterKb} KB（−${beforeKb - afterKb} KB）`);
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