From 4b59108fdd320d32378cd1f31e9f394af52122ea Mon Sep 17 00:00:00 2001
From: Christopher Baines <mail@cbaines.net>
Date: Mon, 5 Aug 2019 19:45:10 +0100
Subject: Properly handle not finding a matching derivation

---
 guix-data-service/web/controller.scm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/guix-data-service/web/controller.scm b/guix-data-service/web/controller.scm
index 974722d..e55ebae 100644
--- a/guix-data-service/web/controller.scm
+++ b/guix-data-service/web/controller.scm
@@ -518,8 +518,11 @@
                                    builds)
            #:extra-headers http-headers-for-unchanging-content))
 
-        #f ;; TODO
-        )))
+        (render-html
+         #:sxml (general-not-found
+                 "Derivation not found"
+                 "No derivation found with this file name.")
+         #:code 404))))
 
 (define (render-store-item conn filename)
   (let ((derivation (select-derivation-by-output-filename conn filename)))
-- 
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