Show warning for unprivileged users

Show warning message and don't allow ownership mapping for non-root
user when the output format is 'dir'.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/virtBootstrap/virt_bootstrap.py b/src/virtBootstrap/virt_bootstrap.py
index 2ff1b4b..9190e80 100755
--- a/src/virtBootstrap/virt_bootstrap.py
+++ b/src/virtBootstrap/virt_bootstrap.py
@@ -109,6 +109,13 @@ def bootstrap(uri, dest,
     """
     Get source object and call unpack method
     """
+    if fmt == 'dir' and os.geteuid() != 0:
+        if uid_map or gid_map:
+            raise ValueError("UID/GID mapping with 'dir' format is "
+                             "allowed only for root.")
+        logger.warning("All extracted files will be owned by the current "
+                       "unprivileged user.")
+
     # Get instance of progress storing module
     prog = progress.Progress(progress_cb)