Add Atom feed

Author: seproDev

src/rss.njk

@@ -0,0 +1,35 @@
+---
+permalink: feed.xml
+metadata:
+  title: DepCtrl Recent Updates
+  subtitle: List of recently updated DependencyControl Macros.
+  language: en
+  url: https://typesettingtools.github.io/depctrl-browser/
+  author:
+    name: DepCtrl Browser
+---
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom" xml:base="{{ metadata.url }}">
+  <title>{{ metadata.title }}</title>
+  <subtitle>{{ metadata.subtitle }}</subtitle>
+  <link href="{{ permalink }}" rel="self"/>
+  <link href="{{ metadata.url }}"/>
+  <updated>{{ updates | getLatestUpdateDate | dateToRfc3339 }}</updated>
+  <id>{{ metadata.url }}</id>
+  <author>
+    <name>{{ metadata.author.name }}</name>
+  </author>
+  {%- for update in updates | updateListSort %}
+  <entry>
+    <title>{{ update.name }} - {{ update.version }}</title>
+    <link href="{{ ["/macros/" , update.namespace, "/"] | join | url }}"/>
+    <updated>{{ update.releaseDate | dateToRfc3339 }}</updated>
+    <id>{{ metadata.url }}{{ ["macros/" , update.namespace, "/"] | join | url }}#{{ update.version }}</id>
+    <content xml:lang="{{ metadata.language }}" type="html">
+      {% for changelogLine in update.changelog %}
+        &lt;li&gt;{{ changelogLine | markdownify }}&lt;/li&gt;
+      {% endfor %}
+    </content>
+  </entry>
+  {%- endfor %}
+</feed>

utils/filters.js

@@ -47,4 +47,35 @@ module.exports = {
   },
 
   toFeedIdentifier: (url) => crypto.createHash("sha1").update(url).digest("hex").slice(0, 7),
+
+  getLatestUpdateDate: (updates) => {
+    let latestDate = null;
+    for (let update of updates) {
+      let updateDate = Date.parse(update['releaseDate']) || 0;
+      if (latestDate === null || updateDate > latestDate) {
+        latestDate = updateDate;
+      }
+    }
+    return latestDate;
+  },
+
+  dateToRfc3339: (date) => {
+    let timestamp
+    if (typeof date === "string") {
+      timestamp = Date.parse(date);
+    } else {
+      timestamp = date
+    }
+    let parsedDate = new Date(0);
+    if (!isNaN(timestamp)) {
+      parsedDate = new Date(timestamp);
+    }
+    let s = parsedDate.toISOString();
+
+    // remove milliseconds
+    let split = s.split(".");
+    split.pop();
+
+    return split.join("") + "Z";
+  },
 }