66 lines
2.6 KiB
JavaScript
66 lines
2.6 KiB
JavaScript
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import {resolve} from 'node:path';
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import Debug from 'debug';
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export default async function(pageData, {
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debug = Debug('@lando/add-metadata'), // eslint-disable-line
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siteConfig,
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} = {}) {
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debug = debug.extend(`${pageData.relativePath}`);
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// get stuff
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const {frontmatter, lastUpdated, relativePath} = pageData;
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const {site} = siteConfig;
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// make sure header info is at least an empty array
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if (!Array.isArray(frontmatter.head)) frontmatter.head = [];
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// retrieve metadata
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const autometa = siteConfig?.site?.themeConfig?.autometa ?? false;
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if (autometa !== false) {
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const {canonicalUrl, image, twitter, x} = autometa;
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const title = frontmatter.title ?? pageData.title ?? site.title;
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const description = frontmatter.description ?? frontmatter.summary ?? site.description;
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const i = frontmatter.image ?? image ?? site?.logo?.src;
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const xandle = x ?? twitter;
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const published = new Date(Number.isNaN(lastUpdated) || !lastUpdated ? Date.now() : lastUpdated);
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// generics
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frontmatter.head.push(
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['meta', {name: 'twitter:card', content: 'summary'}],
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['meta', {name: 'twitter:title', content: title}],
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['meta', {name: 'twitter:description', content: description}],
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['meta', {name: 'twitter:image', content: i}],
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['meta', {name: 'twitter:image:alt', content: title}],
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['meta', {property: 'og:type', content: 'article'}],
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['meta', {property: 'og:title', content: title}],
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['meta', {property: 'og:description', content: description}],
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['meta', {property: 'og:site_name', content: site.title}],
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['meta', {name: 'og:image', content: i}],
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['meta', {name: 'og:image:alt', content: title}],
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['meta', {property: 'article:published_time', content: published}],
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['meta', {itemprop: 'name', content: title}],
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['meta', {itemprop: 'description', content: description}],
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);
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debug('set metadata %o', {title, description, i, published});
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// twitter/x
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if (xandle) {
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frontmatter.head.push(['meta', {name: 'twitter:site', content: xandle}]);
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debug('set xandle to %o', xandle);
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}
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// canonical stuff
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if (canonicalUrl) {
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const pathname = relativePath.replace(/(^|\/)index\.md$/, '$1').replace(/\.md$/, site.cleanUrls ? '' : '.html');
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const url = new URL(resolve(site.base, pathname), canonicalUrl);
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const {href} = url;
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frontmatter.head.unshift(
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['meta', {name: 'twitter:url', content: href}],
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['meta', {property: 'og:url', content: href}],
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['link', {rel: 'canonical', href: href}],
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);
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debug('set canonical url to %o', href);
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}
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}
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};
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