104 lines
2.8 KiB
JavaScript
104 lines
2.8 KiB
JavaScript
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#!/usr/bin/env node
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/**
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* Build search-index.json from docs/*.zh.md and *.en.md for client-side search.
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* Run before vite build so dist gets the index.
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*/
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import { readdir, readFile, writeFile } from "fs/promises";
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import { join } from "path";
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import { fileURLToPath } from "url";
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const __dirname = fileURLToPath(new URL(".", import.meta.url));
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const docsDir = join(__dirname, "..", "public", "docs");
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const outPath = join(__dirname, "..", "public", "search-index.json");
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const EXCERPT_LEN = 800;
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function slugifyHeading(text) {
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const s = text
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.trim()
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.replace(/\s+/g, "-")
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.replace(/[^a-zA-Z0-9_\-\u4e00-\u9fa5]/g, "");
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return s || "section";
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}
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function stripMarkdownForExcerpt(md) {
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return md
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.replace(/<!--[\s\S]*?-->/g, " ")
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.replace(/<svg[\s\S]*?<\/svg>/gi, " ")
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.replace(/<[^>]+>/g, " ")
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.replace(/^#+\s+.+$/gm, "")
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.replace(/\[([^\]]+)\]\([^)]+\)/g, "$1")
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.replace(/[*_`#]/g, "")
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.replace(/\s+/g, " ")
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.trim();
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}
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function parseDoc(md) {
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const lines = md.split("\n");
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let title = "";
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const headings = [];
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let body = [];
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for (let i = 0; i < lines.length; i++) {
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const line = lines[i];
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const h2 = /^##\s+(.+)$/.exec(line);
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const h3 = /^###\s+(.+)$/.exec(line);
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if (i === 0 && line.startsWith("# ")) {
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title = line
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.slice(2)
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.replace(/#+\s*$/, "")
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.trim();
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continue;
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}
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if (h2) {
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const text = h2[1].replace(/#+\s*$/, "").trim();
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headings.push({ level: 2, text, id: slugifyHeading(text) });
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continue;
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}
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if (h3) {
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const text = h3[1].replace(/#+\s*$/, "").trim();
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headings.push({ level: 3, text, id: slugifyHeading(text) });
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continue;
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}
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if (!title && line.trim()) title = line.replace(/#+\s*$/, "").trim();
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body.push(line);
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}
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const fullBody = body.join("\n");
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const excerpt = stripMarkdownForExcerpt(fullBody).slice(0, EXCERPT_LEN);
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return { title: title || "Untitled", headings, excerpt };
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}
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async function main() {
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const files = await readdir(docsDir);
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const entries = [];
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for (const f of files) {
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const zhMatch = f.match(/^(.+)\.zh\.md$/);
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const enMatch = f.match(/^(.+)\.en\.md$/);
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const lang = zhMatch ? "zh" : enMatch ? "en" : null;
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const slug = zhMatch?.[1] ?? enMatch?.[1];
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if (!lang || !slug) continue;
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const path = join(docsDir, f);
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const md = await readFile(path, "utf-8");
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const { title, headings, excerpt } = parseDoc(md);
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entries.push({
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slug,
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lang,
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title,
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headings: headings.map((h) => ({ text: h.text, id: h.id })),
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excerpt,
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});
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}
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await writeFile(outPath, JSON.stringify(entries), "utf-8");
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console.log(`Wrote ${entries.length} doc entries to ${outPath}`);
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}
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main().catch((e) => {
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console.error(e);
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process.exit(1);
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});
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