95 lines
2.9 KiB
JavaScript
95 lines
2.9 KiB
JavaScript
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import {writeFileSync} from 'node:fs';
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import {join} from 'node:path';
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import {default as createContentLoader} from '../utils/create-content-loader.js';
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import Debug from 'debug';
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import {Feed} from 'feed';
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const normalizeUrl = url => url.replace(/([^:]\/)\/+/g, '$1');
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// helper to normalize things
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const normalizeConfig = (config = {}, feed = 'feed') => {
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// pluralize
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if (!config.patterns && config.pattern) {
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config.patterns = config.pattern;
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delete config.pattern;
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}
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// arrayize
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if (typeof config.patterns === 'string') config.patterns = [config.patterns];
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// set filename if it isnt set
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if (!config.file) config.file = `/${feed}.rss`;
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// add the feed name just for the hell of it?
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config.name = feed;
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return config;
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};
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const sort = items => items.sort((a, b) => a.timestamp < b.timestamp ? 1 : -1);
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export default async function(siteConfig, {debug = Debug('@lando/generate-feeds')} = {}) { // eslint-disable-line
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const {userConfig, site, outDir} = siteConfig;
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// get config from priority sources
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const config = userConfig.feeds
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|| userConfig?.themeConfig?.feeds
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|| userConfig.feed
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|| userConfig?.themeConfig?.feed;
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// if feeds is false or undefined then just end it all right here
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if (!config) return;
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// if feeds has only one top level feed then bump it down
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const feeds = (config.patterns || config.pattern) ? {feed: config} : config;
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// loop through and generate feedzzz
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await Promise.all(Object.entries(feeds).map(async ([name, config]) => {
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config = normalizeConfig(config, name);
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const {href} = new URL(site.base ?? '/', config.baseUrl ?? userConfig.baseUrl);
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const feed = new Feed({
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title: config.title ?? site.title ?? '',
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description: config.description ?? config.description ?? '',
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id: normalizeUrl(config.id ?? href),
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link: normalizeUrl(config.link ?? href),
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language: config.language ?? 'en',
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image: config.image ?? '',
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favicon: normalizeUrl(config.favicon ?? `${href}/favicon.ico`),
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copyright: config.copyright ?? '',
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});
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// get items
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const items = await createContentLoader(config.patterns, {excerpt: true, render: true, siteConfig}, {debug}).load();
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// and loop theough them to add
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for (const item of sort(items)) {
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const {authors, timestamp, excerpt, html, summary, title, url} = item;
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// initial payload
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const data = {
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title,
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id: normalizeUrl(`${href}${url}`),
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link: normalizeUrl(`${href}${url}`),
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description: excerpt !== '' ? excerpt : summary,
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content: html,
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date: new Date(timestamp),
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};
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// add authors if we have them
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if (authors && Array.isArray(authors)) data.authors = authors.map(({name, link}) => ({name, link}));
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// SHE ALWAYS NEEDS TO FEED
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feed.addItem(data);
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}
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// write feed
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const dest = join(outDir, config.file);
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writeFileSync(dest, feed.rss2());
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debug('generated rss feed %o', dest);
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}));
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}
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