feat(rss): add news collection to feed.xml

src/_includes/partials/global/meta-info.njk

@@ -13,6 +13,7 @@
 
 <title>{{ pageTitle }}</title>
 <link rel="canonical" href="{{ currentUrl }}" />
+<link rel="alternate" type="application/rss+xml" title="Astrolabe CAE's RSS Feed" href="/feed.xml" />
 
 <meta property="og:site_name" content="{{ siteTitle }}" />
 <meta property="og:title" content="{{ pageTitle }}" />

src/feed.njk

@@ -0,0 +1,35 @@
+---json
+{
+  "permalink": "feed.xml",
+  "eleventyExcludeFromCollections": true,
+  "metadata": {
+    "title": "Actualité d'Astrolabe",
+    "description": "Retrouvez nos dernières actualités",
+    "language": "fr",
+    "base": "https://www.astrolabe.coop/",
+    "author": "Astrolabe CAE"
+  }
+}
+---
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xml:base="{{ metadata.base | addPathPrefixToFullUrl }}" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title>{{ metadata.title }}</title>
+    <link>{{ metadata.base | addPathPrefixToFullUrl }}</link>
+    <atom:link href="{{ permalink | htmlBaseUrl(metadata.base) }}" rel="self" type="application/rss+xml" />
+    <description>{{ metadata.description }}</description>
+    <language>{{ metadata.language or page.lang }}</language>
+    {%- for post in collections.news %}
+    {%- set absolutePostUrl = post.url | htmlBaseUrl(metadata.base) %}
+    <item>
+      <title>{{ post.data.title }}</title>
+      <link>{{ absolutePostUrl }}</link>
+      <description>{{ post.description }}</description>
+      <pubDate>{{ post.date | dateToRfc822 }}</pubDate>
+      <category>{{ post.data.type }}</category>
+      <dc:creator>{{ post.data.author or metadata.author }}</dc:creator>
+      <guid>{{ absolutePostUrl }}</guid>
+    </item>
+    {%- endfor %}
+  </channel>
+</rss>