From 00292744842c72576760be1759de1862113f7dd6 Mon Sep 17 00:00:00 2001
From: lew <lew@ily.rs>
Date: Thu, 26 Mar 2026 22:02:40 +0000
Subject: [PATCH] feat: extracts the rss excerpt utility to use it for
 og:description on post pages

---
 www/src/lib/format.ts      | 12 ++++++++++++
 www/src/pages/[slug].astro |  5 +++--
 www/src/pages/feed.xml.ts  | 13 +------------
 3 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/www/src/lib/format.ts b/www/src/lib/format.ts
index a011492..9628159 100644
--- a/www/src/lib/format.ts
+++ b/www/src/lib/format.ts
@@ -7,6 +7,18 @@ export function escapeHtml(str: string): string {
     .replace(/'/g, '&#039;');
 }
 
+export 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 function formatDate(date: Date): string {
   const d = String(date.getDate()).padStart(2, '0');
   const m = String(date.getMonth() + 1).padStart(2, '0');
diff --git a/www/src/pages/[slug].astro b/www/src/pages/[slug].astro
index caeea05..7974b9d 100644
--- a/www/src/pages/[slug].astro
+++ b/www/src/pages/[slug].astro
@@ -1,7 +1,7 @@
 ---
 import { getCollection, render } from 'astro:content';
 import Layout from '../layouts/Layout.astro';
-import { formatDate, formatListItem } from '../lib/format';
+import { formatDate, formatListItem, excerpt } from '../lib/format';
 import { getSlug, enrichPostWithDates, enrichPostsWithDates, resolveRelatedPosts } from '../lib/md';
 
 export async function getStaticPaths() {
@@ -16,8 +16,9 @@ export async function getStaticPaths() {
 const { post, allPosts } = Astro.props;
 const { Content } = await render(post);
 const related = post.data.related ? resolveRelatedPosts(post.data.related, allPosts) : [];
+const description = excerpt((post as any).body) || undefined;
 ---
-<Layout title={`${post.data.title} - lewis m.w.`}>
+<Layout title={`${post.data.title} - lewis m.w.`} description={description}>
 
 <article>
 <h1>{post.data.title}</h1>
diff --git a/www/src/pages/feed.xml.ts b/www/src/pages/feed.xml.ts
index e01b520..55c43cc 100644
--- a/www/src/pages/feed.xml.ts
+++ b/www/src/pages/feed.xml.ts
@@ -3,18 +3,7 @@ import { getCollection } from 'astro:content';
 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);
-}
+import { excerpt } from '../lib/format';
 
 export async function GET(context: APIContext) {
   const rawPosts = await getCollection('md');