From f3d26484d2f4f1b7667701bc2028132687d55ba5 Mon Sep 17 00:00:00 2001
From: Nick Winans <nick@winans.codes>
Date: Sun, 25 Sep 2022 20:22:22 -0500
Subject: [PATCH] Add warning for unhandled case

---
 .github/workflows/build.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index edcbb9b2..273fd258 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -246,10 +246,12 @@ jobs:
                       return hm.requires.flatMap(i => 
                         metadata.interconnects[i].boards.flatMap(b => boardAndShield(b, hm))
                       );
+                    } else {
+                      console.warn("Unhandled shield without keys");
+                      return [];
                     }
                     break;
                   case "interconnect":
-                  default:
                     return [];
                 }
               });