more Sparkle tests

scripts/build_release.sh

@@ -29,23 +29,56 @@ find_generate_appcast() {
 generate_appcast() {
   local generator
   generator="$(find_generate_appcast)"
-  local download_prefix=""
-  if [[ -n "${SPARKLE_DOWNLOAD_BASE_TEMPLATE:-}" ]]; then
-    download_prefix="${SPARKLE_DOWNLOAD_BASE_TEMPLATE//\{\{VERSION\}\}/$VERSION}"
-  else
-    download_prefix="${SPARKLE_DOWNLOAD_BASE_URL:-}"
-  fi
+  local download_prefix="${SPARKLE_DOWNLOAD_BASE_URL:-}"
+  local subdir_template="${SPARKLE_DOWNLOAD_SUBDIR_TEMPLATE:-}"
 
   if [[ -z "$generator" || -z "${SPARKLE_EDDSA_KEY_FILE:-}" || -z "$download_prefix" ]]; then
     echo "ℹ️ Skipping Sparkle appcast generation (generator/key/download prefix not configured)."
     return
   fi
 
+  download_prefix="${download_prefix%/}"
   local output="$SPARKLE_APPCAST_OUTPUT"
   mkdir -p "$(dirname "$output")"
+
   local staging_dir
   staging_dir="$(mktemp -d)"
-  cp "$ARTIFACTS_DIR"/*.zip "$staging_dir"/ 2>/dev/null || true
+  local zip_found=false
+  shopt -s nullglob
+  for zip_path in "$ARTIFACTS_DIR"/*.zip; do
+    zip_found=true
+    local filename version_guess target_dir subdir
+    filename="$(basename "$zip_path")"
+    if [[ "$filename" =~ ([0-9]+\.[0-9]+\.[0-9]+) ]]; then
+      version_guess="${BASH_REMATCH[1]}"
+    else
+      version_guess="$VERSION"
+    fi
+
+    target_dir="$staging_dir"
+    if [[ -n "$subdir_template" ]]; then
+      subdir="$subdir_template"
+      subdir="${subdir//\{\{VERSION\}\}/$version_guess}"
+      subdir="${subdir//\{\{SHORT_VERSION\}\}/$version_guess}"
+      subdir="${subdir//\{\{TAG\}\}/v$version_guess}"
+      subdir="${subdir#/}"
+      subdir="${subdir%/}"
+      if [[ -n "$subdir" ]]; then
+        target_dir="$staging_dir/$subdir"
+        mkdir -p "$target_dir"
+      fi
+    fi
+
+    cp "$zip_path" "$target_dir/"
+  done
+  shopt -u nullglob
+
+  if [[ "$zip_found" != true ]]; then
+    echo "ℹ️ Skipping Sparkle appcast generation (no ZIP archives found)."
+    rm -rf "$staging_dir"
+    return
+  fi
+
   echo "🧾 Generating Sparkle appcast at $output"
   if ! "$generator" \
     --download-url-prefix "$download_prefix" \