Add directory debug output

scripts/build.py

@@ -66,10 +66,14 @@ def build_package(repo_dir, package_dir, name,
         workdir = os.path.join(tempdir, pkg_dir)
         os.chdir(workdir)
 
+        print(os.listdir())
+
         if additional_content is not None:
             os.chdir(workdir)
+            print(os.listdir())
             for content in additional_content:
                 os.chdir(content["target_dir"])
+                print(os.listdir())
                 if "patch_dir" in content:
                     abs_patch_dir = os.path.join(
                         repo_dir, content["patch_dir"])