sitemap.xml

---
layout: null
include_in_sitemap: false
---
<?xml version="1.0" encoding="UTF-8" ?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">
  {%
    assign everything = site.posts
      | concat: site.pages
      | where: "include_in_sitemap", true
      | where: "redirect", false
  %}

  {% for page in everything %}
    <url>
      <loc>{{ page.url | absolute_url }}</loc>
      {% if page.last_modified_at %}
        <lastmod>{{ page.last_modified_at | date_to_xmlschema }}</lastmod>
      {% else %}
        <lastmod>{{ page.date | date_to_xmlschema }}</lastmod>
      {% endif %}
      {% assign translations = everything | where: "ref", page.ref %}
      {% for translation in translations %}
        <xhtml:link
            rel="alternate"
            {% if translation.lang %}
              hreflang="{{ translation.lang }}"
            {% else %}
              hreflang="x-default"
            {% endif %}
            href="{{ translation.url | absolute_url }}"
        />
      {% endfor %}
    </url>
  {% endfor %}
</urlset>