litruv/lit.ruv.wtf
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feat: add extractDescription method and enhance renderPageTemplate with Open Graph metadata

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Litruv
2026-05-10 23:33:29 +10:00
parent ba36cdd05b
commit 7007660a80
1 changed files with 50 additions and 4 deletions
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54
tools/StaticBlogGenerator.js
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@@ -84,6 +84,23 @@ class StaticBlogGenerator {
return this.renderPageTemplate('Blog', content, '/blog.html');
}
/**
* Extracts a plain-text description from the first paragraph of markdown content.
*
* @param {string} content
* @returns {string}
*/
extractDescription(content) {
const lines = (content || '').split('\n');
for (const line of lines) {
const trimmed = line.trim();
if (!trimmed || trimmed.startsWith('#') || trimmed.startsWith('!') || trimmed.startsWith('>') || /^[-*_]{3,}$/.test(trimmed) || trimmed.startsWith('```')) continue;
const plain = trimmed.replace(/[*_`\[\]]/g, '').replace(/!?\[.*?\]\(.*?\)/g, '').trim();
if (plain.length > 20) return plain.slice(0, 160);
}
return 'Read this post on lit.ruv.wtf';
}
/**
* @param {{slug: string, title: string, date: string | null, author: string | null, tags?: string[], content: string}} post
* @param {{slug: string, title: string, date: string | null} | null} prev - Older post (lower index)
@@ -161,7 +178,16 @@ class StaticBlogGenerator {
'</main>'
].join('\n');
return this.renderPageTemplate(`${safeTitle} - Blog`, content, `/blog/${encodeURIComponent(post.slug)}/`);
const canonicalUrl = `https://lit.ruv.wtf/blog/${encodeURIComponent(post.slug)}/`;
return this.renderPageTemplate(`${safeTitle} - Blog`, content, `/blog/${encodeURIComponent(post.slug)}/`, {
description: this.extractDescription(post.content),
ogTitle: safeTitle,
ogType: 'article',
ogUrl: canonicalUrl,
articlePublishedTime: post.date || null,
articleAuthor: post.author || null,
articleTags: tags,
});
}
/**
@@ -170,8 +196,27 @@ class StaticBlogGenerator {
* @param {string} canonicalPath
* @returns {string}
*/
renderPageTemplate(title, bodyHtml, canonicalPath) {
renderPageTemplate(title, bodyHtml, canonicalPath, og = {}) {
const escapedTitle = this.escapeHtml(title);
const canonicalUrl = `https://lit.ruv.wtf${canonicalPath}`;
const description = this.escapeHtml(og.description || 'lit.ruv.wtf blog posts.');
const ogTitle = this.escapeHtml(og.ogTitle || title);
const ogType = og.ogType || 'website';
const ogUrl = og.ogUrl || canonicalUrl;
const ogMeta = [
` <meta property="og:title" content="${ogTitle}">`,
` <meta property="og:type" content="${ogType}">`,
` <meta property="og:url" content="${ogUrl}">`,
` <meta property="og:description" content="${description}">`,
` <meta property="og:site_name" content="lit.ruv.wtf">`,
` <meta name="twitter:card" content="summary">`,
` <meta name="twitter:title" content="${ogTitle}">`,
` <meta name="twitter:description" content="${description}">`,
og.articlePublishedTime ? ` <meta property="article:published_time" content="${og.articlePublishedTime}">` : '',
og.articleAuthor ? ` <meta property="article:author" content="${this.escapeHtml(og.articleAuthor)}">` : '',
...(og.articleTags || []).map(t => ` <meta property="article:tag" content="${this.escapeHtml(t)}">`,),
].filter(Boolean);
return [
'<!DOCTYPE html>',
@@ -181,8 +226,9 @@ class StaticBlogGenerator {
' <meta name="viewport" content="width=device-width, initial-scale=1.0">',
' <base href="/">',
` <title>${escapedTitle}</title>`,
' <meta name="description" content="Lit.ruv.wtf blog posts.">',
` <link rel="canonical" href="https://lit.ruv.wtf${canonicalPath}">`,
` <meta name="description" content="${description}">`,
` <link rel="canonical" href="${canonicalUrl}">`,
...ogMeta,
' <link rel="icon" type="image/png" sizes="32x32" href="/logos/32px.png">',
' <link rel="icon" type="image/png" sizes="64x64" href="/logos/64px.png">',
' <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/themes/prism-tomorrow.min.css">',