From b9fc32ec348bbf06170e50c74974b8cf98ed8bac Mon Sep 17 00:00:00 2001
From: Tim Messerschmidt <timmesserschmidt@gmail.com>
Date: Sat, 7 Mar 2026 05:06:12 +0100
Subject: [PATCH] fix: skip empty lines in wheel download read loop

Add a guard to skip empty lines (e.g. trailing newlines) in the
while-read loop to prevent try_download_wheels from breaking on
unexpected blank input.
---
 build-and-copy.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/build-and-copy.sh b/build-and-copy.sh
index 24f5a02..44ee34c 100755
--- a/build-and-copy.sh
+++ b/build-and-copy.sh
@@ -198,6 +198,7 @@ if downloads:
     local URL NAME TMP_WHL
     local DOWNLOADED=()
     while IFS=' ' read -r URL NAME; do
+        [ -z "$URL" ] && continue
         echo "Downloading $NAME..."
         TMP_WHL=$(mktemp "$WHEELS_DIR/${NAME}.XXXXXX")
         if curl -L --progress-bar --connect-timeout 30 "$URL" -o "$TMP_WHL"; then