Include subsites in sitemap.xml

Author: JohnScottUK

.gitignore

@@ -1,7 +1,6 @@
 # Ignore docs files
 _gh_pages
 _site
-.ruby-version
 
 # Numerous always-ignore extensions
 *.diff

.ruby-version

@@ -0,0 +1 @@
+2.7.3

Gemfile.lock

@@ -270,6 +270,7 @@ PLATFORMS
   x64-mingw32
   x64-unknown
   x86_64-darwin-20
+  x86_64-darwin-21
   x86_64-linux
 
 DEPENDENCIES

_config.yml

@@ -80,7 +80,6 @@ exclude:
 # Plugins (previously gems:)
 plugins:
   - jekyll-paginate
-  - jekyll-sitemap
   - jekyll-gist
   - jekyll-feed
   - jemoji

_data/sitemap.yml

@@ -0,0 +1,9 @@
+subsites:
+  - jekyll-redirect-html
+  - jekyll-related-posts
+  - jsonpath-cli
+  - raml-editor
+  - shlog
+  - t800-rifle
+  - t800-eyes
+  - t800-hk

sitemap.xml

@@ -0,0 +1,46 @@
+---
+layout: compress
+---
+<?xml version="1.0" encoding="UTF-8"?>
+{% if page.xsl %}
+  <?xml-stylesheet type="text/xsl" href="{{ "/sitemap.xsl" | absolute_url }}"?>
+{% endif %}
+<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  {% assign collections = site.collections | where_exp:'collection','collection.output != false' %}
+  {% for collection in collections %}
+    {% assign docs = collection.docs | where_exp:'doc','doc.sitemap != false' %}
+    {% for doc in docs %}
+      <url>
+        <loc>{{ doc.url | replace:'/index.html','/' | absolute_url | xml_escape }}</loc>
+        {% if doc.last_modified_at or doc.date %}
+          <lastmod>{{ doc.last_modified_at | default: doc.date | date_to_xmlschema }}</lastmod>
+        {% endif %}
+      </url>
+    {% endfor %}
+  {% endfor %}
+
+  {% assign pages = site.html_pages | where_exp:'doc','doc.sitemap != false' | where_exp:'doc','doc.url != "/404.html"' %}
+  {% for page in pages %}
+    <url>
+      <loc>{{ page.url | replace:'/index.html','/' | absolute_url | xml_escape }}</loc>
+      {% if page.last_modified_at %}
+        <lastmod>{{ page.last_modified_at | date_to_xmlschema }}</lastmod>
+      {% endif %}
+    </url>
+  {% endfor %}
+
+  {% assign static_files = page.static_files | where_exp:'page','page.sitemap != false' | where_exp:'page','page.name != "404.html"' %}
+  {% for file in static_files %}
+    <url>
+      <loc>{{ file.path | replace:'/index.html','/' | absolute_url | xml_escape }}</loc>
+      <lastmod>{{ file.modified_time | date_to_xmlschema }}</lastmod>
+    </url>
+  {% endfor %}
+
+  {% for subsite in site.data.sitemap.subsites %}
+    <url>
+      <loc>{{ site.url | absolute_url | xml_escape }}/{{ subsite | xml_escape}}/</loc>
+    </url>
+  {% endfor %}
+
+</urlset>