[ntuple] Merger: don't abort if a file doesn't contain a RNTuple

This mirrors the merge behavior of other ROOT objects
root-project · Feb 4, 2025 · c0bebf3 · c0bebf3
1 parent 63dbb6c
commit c0bebf3
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/tree/ntuple/v7/src/RNTupleMerger.cxx b/tree/ntuple/v7/src/RNTupleMerger.cxx
@@ -158,9 +158,9 @@ try {
       TFile *inFile = dynamic_cast<TFile *>(pitr);
       ROOT::RNTuple *anchor = inFile ? inFile->Get<ROOT::RNTuple>(ntupleName.c_str()) : nullptr;
       if (!anchor) {
-         Error("RNTuple::Merge", "Failed to retrieve RNTuple anchor named '%s' from file '%s'", ntupleName.c_str(),
+         Warning("RNTuple::Merge", "Failed to retrieve RNTuple anchor named '%s' from file '%s'", ntupleName.c_str(),
                inFile->GetName());
-         return -1;
+         continue;
       }
 
       auto source = RPageSourceFile::CreateFromAnchor(*anchor);