feat: short excerpt in rss feed

www/src/pages/feed.xml.ts

@@ -4,10 +4,21 @@ import type { APIContext } from 'astro';
 import { getSlug, enrichPostsWithDates } from '../lib/md';
 import { getTxtFiles } from '../lib/txt';
 
+function excerpt(markdown: string | undefined, maxLen = 160): string {
+  if (!markdown) return '';
+  return markdown
+    .replace(/^#+\s+.*$/gm, '')
+    .replace(/!?\[([^\]]*)\]\([^)]*\)/g, '$1')
+    .replace(/[*_~`]/g, '')
+    .replace(/:[a-z]+\[([^\]]*)\]/g, '$1')
+    .replace(/\n+/g, ' ')
+    .trim()
+    .slice(0, maxLen);
+}
+
 export async function GET(context: APIContext) {
   const rawPosts = await getCollection('md');
   const posts = enrichPostsWithDates(rawPosts);
-  const bookmarks = await getCollection('bookmarks');
   const txtFiles = getTxtFiles();
 
   const items = [
@@ -15,25 +26,19 @@ export async function GET(context: APIContext) {
       title: post.data.title,
       pubDate: post.dates.created,
       link: `/${getSlug(post.id)}`,
-      description: post.data.title,
+      description: excerpt((post as any).body) || post.data.title,
     })),
     ...txtFiles.map(txt => ({
       title: txt.name,
       pubDate: txt.date,
       link: `/${txt.name}`,
-      description: txt.name,
-    })),
-    ...bookmarks.map(b => ({
-      title: b.data.title,
-      pubDate: b.data.date,
-      link: b.data.url,
-      description: b.data.title,
+      description: txt.description || txt.name,
     })),
   ].sort((a, b) => b.pubDate.getTime() - a.pubDate.getTime());
 
   return rss({
     title: 'wynne.rs',
-    description: '',
+    description: 'personal website of lewis m.w.',
     site: context.site ?? 'https://wynne.rs',
     items,
   });