From dafe5c1323f20c04d8378ff003af2c04adb379c9 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sun, 13 Mar 2022 21:16:43 +0900
Subject: [ruby/rdoc] Fold files in the page directory

https://github.com/ruby/rdoc/commit/b7b4cdab6c
---
 .../generator/template/darkfish/_sidebar_pages.rhtml  | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/rdoc/generator/template/darkfish/_sidebar_pages.rhtml b/lib/rdoc/generator/template/darkfish/_sidebar_pages.rhtml
index 8ec83abda2..f3b6cf3a05 100644
--- a/lib/rdoc/generator/template/darkfish/_sidebar_pages.rhtml
+++ b/lib/rdoc/generator/template/darkfish/_sidebar_pages.rhtml
@@ -4,8 +4,25 @@
   <h3>Pages</h3>
 
   <ul class="link-list">
-  <%- simple_files.each do |f| -%>
+  <%- simple_files.group_by do |f| -%>
+    <%- f.full_name[%r{\A[^/]+(?=/)}] || f.page_name -%>
+  <%- end.each do |n, files| -%>
+    <%- f = files.shift -%>
+    <%- if files.empty? -%>
     <li><a href="<%= rel_prefix %>/<%= f.path %>"><%= h f.page_name %></a>
+      <%- next -%>
+    <%- end -%>
+    <li><details><summary><%
+    if n == f.page_name
+      %><a href="<%= rel_prefix %>/<%= f.path %>"><%= h n %></a><%
+    else
+      %><%= h n %><% files.unshift(f)
+    end %></summary>
+    <ul class="link-list">
+    <%- files.each do |f| -%>
+      <li><a href="<%= rel_prefix %>/<%= f.path %>"><%= h f.page_name %></a>
+    <%- end -%>
+    </ul></details>
   <%- end -%>
   </ul>
 </div>
-- 
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