first commit

src/pages/rss.xml.ts

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+import rss from "@astrojs/rss";
+import { SITE } from "@consts";
+import { getCollection } from "astro:content";
+
+export async function GET(context: { site: string }) {
+  const posts = (await getCollection("posts")).filter(
+    (post) => !post.data.draft,
+  );
+
+  const projects = (await getCollection("projects")).filter(
+    (project) => !project.data.draft,
+  );
+
+  const items = [...posts, ...projects].sort(
+    (a, b) => new Date(b.data.date).valueOf() - new Date(a.data.date).valueOf(),
+  );
+
+  return rss({
+    title: SITE.TITLE,
+    description: SITE.DESCRIPTION,
+    site: context.site,
+    items: items.map((item) => ({
+      title: item.data.title,
+      description: item.data.description,
+      pubDate: item.data.date,
+      link: `/${item.collection}/${item.slug}/`,
+    })),
+  });
+}