Limit inheritance policy work to the relevant scope

internal/engine/inheritance.go

@@ -114,26 +114,7 @@ func cloneInheritanceOperations(operations []inheritanceOperation) []inheritance
 }
 
 func inheritancePolicyScopeAtPath(scope collectionPolicyScope, prefix Path) collectionPolicyScope {
-	localized := collectionPolicyScope{}
-	for _, entry := range scope.collections {
-		if relative, inside := relativeHistoryPath(prefix, entry.destination); inside {
-			localized.set(relative, cloneCollectionPolicyForInheritance(entry.policy))
-			continue
-		}
-		relative, inside := relativeHistoryPath(entry.destination, prefix)
-		if !inside || len(relative.segments) == 0 || relative.segments[0].kind != pathSegmentIndex {
-			continue
-		}
-		record, found := entry.policy.recordPolicyAt(relative.segments[0].index)
-		if !found {
-			continue
-		}
-		remainder := Path{segments: append([]pathSegment(nil), relative.segments[1:]...)}
-		for _, nested := range inheritancePolicyScopeAtPath(record.scope, remainder).collections {
-			localized.set(nested.destination, cloneCollectionPolicyForInheritance(nested.policy))
-		}
-	}
-	return localized
+	return newInheritancePolicyIndex(scope).localize(prefix)
 }
 
 func projectInheritancePolicyTemplates(templates []collectionPolicyScope, prefix Path) []projectedCollectionPolicy {