Support catalog maintenance commands

internal/state/prune.go

@@ -49,6 +49,22 @@ func SharedRootPruneCandidates(s SharedRootState, scope OwnerScope) []PruneCandi
 	return candidates
 }
 
+func CatalogPruneCandidates(s CatalogState, scope OwnerScope) []PruneCandidate {
+	candidates := make([]PruneCandidate, 0, len(s.Outputs))
+	for _, output := range s.Outputs {
+		if output.PipelineID != scope.PipelineID || output.DestinationID != scope.DestinationID {
+			continue
+		}
+		owner := scope
+		candidates = append(candidates, PruneCandidate{
+			Path:      output.Path,
+			UpdatedAt: output.UpdatedAt,
+			Owner:     &owner,
+		})
+	}
+	return candidates
+}
+
 func PlanPrune(candidates []PruneCandidate, options PrunePlanOptions) PrunePlan {
 	ordered := append([]PruneCandidate(nil), candidates...)
 	sortPruneCandidatesNewestFirst(ordered)