From 02dc6a82c636324a716f53a56e183d58948dc727 Mon Sep 17 00:00:00 2001
From: Solderpunk <solderpunk@sdf.org>
Date: Thu, 30 Jul 2020 18:49:59 +0200
Subject: [PATCH] Add trailing slash to subdirectory links in directory
 listings.

---
 dirlist.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/dirlist.go b/dirlist.go
index 9828f94..eb9a870 100644
--- a/dirlist.go
+++ b/dirlist.go
@@ -60,7 +60,13 @@ func generateDirectoryListing(URL *url.URL, path string, config Config) (string,
 		if uint64(file.Mode().Perm())&0444 != 0444 {
 			continue
 		}
-		listing += fmt.Sprintf("=> %s %s\n", url.PathEscape(file.Name()), generatePrettyFileLabel(file, path, config))
+		// Make sure links to directories have a trailing slash,
+		// to avoid needless redirects
+		relativeUrl := url.PathEscape(file.Name())
+		if file.IsDir() {
+			relativeUrl += "/"
+		}
+		listing += fmt.Sprintf("=> %s %s\n", relativeUrl, generatePrettyFileLabel(file, path, config))
 	}
 	return listing, nil
 }