Revert "docs: use collections to structure the data"

This reverts commit 5e8ff010a1436d33bbf3c108335af6e0b4ff7a2a.

This broke all the URLs, we can't have that. (And actually, we probably don't
_want_ to make the change either. It's nicer to have all the pages in one
directory, so one doesn't have to figure out to which collection the page
belongs.)

1 files changed, 8 insertions, 18 deletions

diff --git a/docs/index.md b/docs/index.md
index cd3916ca32..3c05c93550 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -12,27 +12,17 @@ systemd provides aggressive parallelization capabilities, uses socket and D-Bus
 Other parts include a logging daemon, utilities to control basic system configuration like the hostname, date, locale, maintain a list of logged-in users and running containers and virtual machines, system accounts, runtime directories and settings, and daemons to manage simple network configuration, network time synchronization, log forwarding, and name resolution.
 
 ---
-## Project
-{% for page in site.data.project %}
-* [{{ page.title }}]({{ page.url | relative_url }}){% endfor %}
-
-<!-- Collections -->
-{% for c in site.collections %}
-<!-- hide autegenerated posts collection -->
-{% if c.label != "posts" %}
-## {{ c.title }}
-{% for item in site[c.label] %}
-* [{{ item.title }}]({{ item.url | relative_url }}){% endfor %}
-{% endif %}
-{% endfor %}
 
-<!-- external pages -->
-{% assign external_pages = site.data.extra_pages | group_by:"category" %}
+{% assign by_category = site.pages | group_by:"category" %}
+{% assign extra_pages = site.data.extra_pages | group_by:"category" %}
+{% assign merged = by_category | concat: extra_pages | sort:"name" %}
 
-{% for category in external_pages %}
-## {{ category.name }}
-{% assign sorted = category.items | sort:"title" %}{% for page in sorted %}
+{% for pair in merged %}
+  {% if pair.name != "" %}
+## {{ pair.name }}
+{% assign sorted = pair.items | sort:"title" %}{% for page in sorted %}
 * [{{ page.title }}]({{ page.url | relative_url }}){% endfor %}
+  {% endif %}
 {% endfor %}
 
 ## See also