From 20aa8ef3a34f9785ae7df7fc524333d1eb62b7ec Mon Sep 17 00:00:00 2001
From: Jonny Gerig Meyer <jonny@oddbird.net>
Date: Thu, 6 Apr 2023 14:46:54 -0400
Subject: [PATCH] Add sitemap.xml

---
 source/404.md         |  3 ++-
 source/_redirects     |  1 +
 source/feed.liquid    |  2 +-
 source/humans.liquid  |  3 ++-
 source/robots.liquid  | 10 ++++++++++
 source/robots.txt     |  5 -----
 source/sitemap.liquid | 18 ++++++++++++++++++
 7 files changed, 34 insertions(+), 8 deletions(-)
 create mode 100644 source/robots.liquid
 delete mode 100644 source/robots.txt
 create mode 100644 source/sitemap.liquid

diff --git a/source/404.md b/source/404.md
index 2069493..6b2cecf 100644
--- a/source/404.md
+++ b/source/404.md
@@ -1,7 +1,8 @@
 ---
 layout: has_no_sidebars
 title: Page Not Found
-permalink: 404.html
+permalink: '/404.html'
+eleventyExcludeFromCollections: true
 introduction: >
   Sorry, but the page you were trying to view does not exist.
 center_introduction: true
diff --git a/source/_redirects b/source/_redirects
index 323d191..09ff367 100644
--- a/source/_redirects
+++ b/source/_redirects
@@ -1,4 +1,5 @@
 /feed                 /feed.xml                                     200
+/sitemap              /sitemap.xml                                  200
 /tutorial             /guide
 /download             /install
 /try                  https://www.sassmeister.com
diff --git a/source/feed.liquid b/source/feed.liquid
index 062974d..7fa7501 100644
--- a/source/feed.liquid
+++ b/source/feed.liquid
@@ -1,5 +1,5 @@
 ---
-permalink: 'feed.xml'
+permalink: '/feed.xml'
 eleventyExcludeFromCollections: true
 ---
 <?xml version="1.0" encoding="utf-8"?>
diff --git a/source/humans.liquid b/source/humans.liquid
index 04ee999..72cded8 100644
--- a/source/humans.liquid
+++ b/source/humans.liquid
@@ -1,5 +1,6 @@
 ---
-permalink: humans.txt
+permalink: '/humans.txt'
+eleventyExcludeFromCollections: true
 ---
 # humanstxt.org/
 # The humans responsible & technology colophon
diff --git a/source/robots.liquid b/source/robots.liquid
new file mode 100644
index 0000000..88c6343
--- /dev/null
+++ b/source/robots.liquid
@@ -0,0 +1,10 @@
+---
+permalink: '/robots.txt'
+eleventyExcludeFromCollections: true
+---
+# www.robotstxt.org/
+
+# Allow crawling of all content
+User-agent: *
+Disallow:
+Sitemap: {{ '/sitemap.xml' | absoluteUrl: site.url }}
diff --git a/source/robots.txt b/source/robots.txt
deleted file mode 100644
index d0e5f1b..0000000
--- a/source/robots.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-# www.robotstxt.org/
-
-# Allow crawling of all content
-User-agent: *
-Disallow:
diff --git a/source/sitemap.liquid b/source/sitemap.liquid
new file mode 100644
index 0000000..b9a57ed
--- /dev/null
+++ b/source/sitemap.liquid
@@ -0,0 +1,18 @@
+---
+permalink: '/sitemap.xml'
+eleventyExcludeFromCollections: true
+---
+<?xml version="1.0" encoding="utf-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  {%- assign pages = collections.all | reverse -%}
+  {%- for page in pages -%}
+  {%- if not page.data.draft %}
+  <url>
+    <loc>{{ page.url | absoluteUrl: site.url }}</loc>
+    <lastmod>{{ page.date | dateToRfc3339 }}</lastmod>
+    <changefreq>{{ page.data.changefreq | default: 'monthly' }}</changefreq>
+    <priority>{{ page.data.priority | default: '0.5' }}</priority>
+  </url>
+  {%- endif -%}
+  {%- endfor %}
+</urlset>