From d8b9f3260daaceed8a31eedcc44bd00733f96254 Mon Sep 17 00:00:00 2001
From: Chris Swithinbank
Date: Thu, 25 May 2023 13:17:15 +0200
Subject: Fix false positive in sidebar autogeneration logic

---
 .changeset/metal-needles-shout.md      | 5 +++++
 packages/starlight/utils/navigation.ts | 8 +++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/metal-needles-shout.md

diff --git a/.changeset/metal-needles-shout.md b/.changeset/metal-needles-shout.md
new file mode 100644
index 00000000..4ea11e12
--- /dev/null
+++ b/.changeset/metal-needles-shout.md
@@ -0,0 +1,5 @@
+---
+"@astrojs/starlight": patch
+---
+
+Fix false positive in sidebar autogeneration logic
diff --git a/packages/starlight/utils/navigation.ts b/packages/starlight/utils/navigation.ts
index ae4f918b..1d5a1764 100644
--- a/packages/starlight/utils/navigation.ts
+++ b/packages/starlight/utils/navigation.ts
@@ -65,7 +65,13 @@ function groupFromAutogenerateConfig(
 ): Group {
   const { directory } = item.autogenerate;
   const localeDir = locale ? locale + '/' + directory : directory;
-  const dirDocs = routes.filter((doc) => doc.slug.startsWith(localeDir));
+  const dirDocs = routes.filter(
+    (doc) =>
+      // Match against `foo.md` or `foo/index.md`.
+      doc.slug === localeDir ||
+      // Match against `foo/anything/else.md`.
+      doc.slug.startsWith(localeDir + '/')
+  );
   const tree = treeify(dirDocs, localeDir);
   return {
     type: 'group',
-- 
cgit