Jekyll Sitemap Without Plugins

sitemap.xml

---
layout: null
---
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  
  {% for post in site.posts %}{% unless post.published == false %}<url>
    <loc>{{ site.url }}{{ post.url }}</loc>
    {% if post.date %}<lastmod>{{ post.date | date_to_xmlschema }}</lastmod>{% endif %}
  </url>{% endunless %}
  {% endfor %}
  {% for page in site.pages %}<url>
    <loc>{{ site.url }}{{ page.url | remove: "index.html" }}</loc>
    {% if page.date %}<lastmod>{{ page.date | date_to_xmlschema }}</lastmod>{% else %}<lastmod>{{ site.time | date_to_xmlschema }}</lastmod>{% endif %}
  </url>
  {% endfor %}
</urlset>