RSS feed XML file generation component

This component will add the feed.xml containing the RSS feed.

<?xml version="1.0" encoding="UTF-8" ?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
    <channel>
        <title>Site Title</title>
        <description>Site Description</description>
        <link>https://www.example.com</link>
        <image>
            <url>/logo.png</url>
            <title>Site Title</title>
            <link>https://www.example.com</link>
        </image>
        <lastBuildDate>Sat, 20 Jun 2020 08:22:31 GMT</lastBuildDate>
        <atom:link href="/feed.xml" rel="self" type="application/rss+xml" />
      <item>
          <title>Page 1</title>
          <description>Description of page1</description>
          <link>/page1/</link>
          <guid isPermaLink="true">/page1/</guid>
      </item>
      <item>
          <title>Page 2</title>
          <description>Description of page2</description>
          <link>/page2/</link>
          <guid isPermaLink="true">/page2/</guid>
      </item>
    </channel>
</rss>

This component is included into the base theme

Parameters

image - default site image if image attribute is not specified for the main page of the site
title-attribute - name of the page attributes which should be used for title in this feed. Default value is title
sitemap (page metadata) - false to exclude this page from the feed
date (page metadata) - optional parameter for the date attribute of the page
description (page metadata) - description of the page in the feed
categories (page metadata) - array of categories this page belongs to

Usage

When this component is added feed.xml will be generated at the root of the site.

Data will be extracted from each page attributes

title: Page Title
description: Page description
categories:
  - Category1
  - Category2