fix: made the macos app smaller

lib/bds/mac_bundle.ex

@@ -70,17 +70,20 @@ defmodule BDS.MacBundle do
     frameworks = Path.join(contents, "Frameworks")
     rel = Path.join(resources, "rel")
 
-    File.rm_rf!(app)
-    Enum.each([macos, resources, frameworks], &File.mkdir_p!/1)
+    # Validate before rm_rf! so a refused build leaves any previous bundle intact.
+    with :ok <- BDS.ReleasePackaging.validate_release_source(release_dir) do
+      File.rm_rf!(app)
+      Enum.each([macos, resources, frameworks], &File.mkdir_p!/1)
 
-    with {:ok, _} <- File.cp_r(release_dir, rel),
-         :ok <- File.cp(icns_path, Path.join(resources, "#{@icon_name}.icns")),
-         :ok <- File.write(Path.join(contents, "Info.plist"), info_plist(version: version)),
-         :ok <- File.write(Path.join(contents, "PkgInfo"), "APPL????"),
-         :ok <- write_launcher(Path.join(macos, @executable)),
-         :ok <- maybe_relocate_dylibs(rel, frameworks, opts),
-         :ok <- maybe_codesign(app, opts) do
-      {:ok, app}
+      with {:ok, _} <- File.cp_r(release_dir, rel),
+           :ok <- File.cp(icns_path, Path.join(resources, "#{@icon_name}.icns")),
+           :ok <- File.write(Path.join(contents, "Info.plist"), info_plist(version: version)),
+           :ok <- File.write(Path.join(contents, "PkgInfo"), "APPL????"),
+           :ok <- write_launcher(Path.join(macos, @executable)),
+           :ok <- maybe_relocate_dylibs(rel, frameworks, opts),
+           :ok <- maybe_codesign(app, opts) do
+        {:ok, app}
+      end
     end
   end