Implement catalog force replacement

internal/publish/plan.go

@@ -139,8 +139,15 @@ func Build(ctx context.Context, req Request) (Plan, error) {
 		SupersededLegacy:      status.SupersededLegacy,
 	}
 	if status.StateErr != nil {
-		plan.Action = ActionFailConflict
 		plan.Reason = status.StateErr.Error()
+		if req.Force {
+			plan.Action = ActionForceReplace
+			plan.Force = true
+			plan.ClearDestinationRoot = true
+			plan.CatalogOutputsToWrite = catalogOutputsForPlan(req, outputs, nil, scope, now)
+			return plan, nil
+		}
+		plan.Action = ActionFailConflict
 		return plan, fmt.Errorf("%s: %s", plan.Action, plan.Reason)
 	}
 
@@ -151,7 +158,7 @@ func Build(ctx context.Context, req Request) (Plan, error) {
 	case status.SupersededLegacy != nil:
 		details = planSupersededLegacy(req, outputs, workflow, scope, now)
 	default:
-		details, err = planWithoutCatalog(ctx, req, outputs, workflow, scope, now)
+		details, err = planWithoutCatalog(ctx, req, outputs, workflow, scope, now, status.HasContents)
 	}
 	plan.Action = details.Action
 	plan.Reason = details.Reason
@@ -159,6 +166,15 @@ func Build(ctx context.Context, req Request) (Plan, error) {
 	plan.CatalogOutputsToRetain = details.CatalogOutputsToRetain
 	plan.CatalogOutputsToDelete = details.CatalogOutputsToDelete
 	plan.ClearDestinationRoot = details.ClearDestinationRoot
+	if err != nil && req.Force && forceCanReplace(details.Action) {
+		plan.Action = ActionForceReplace
+		plan.Force = true
+		plan.ClearDestinationRoot = true
+		plan.CatalogOutputsToWrite = catalogOutputsForPlan(req, outputs, nil, scope, now)
+		plan.CatalogOutputsToRetain = nil
+		plan.CatalogOutputsToDelete = nil
+		return plan, nil
+	}
 	if err != nil {
 		return plan, err
 	}
@@ -239,7 +255,14 @@ func planSupersededLegacy(req Request, outputs []Output, workflow string, scope
 	return details
 }
 
-func planWithoutCatalog(ctx context.Context, req Request, outputs []Output, workflow string, scope state.OwnerScope, now time.Time) (catalogPlanDetails, error) {
+func planWithoutCatalog(ctx context.Context, req Request, outputs []Output, workflow string, scope state.OwnerScope, now time.Time, hasContents bool) (catalogPlanDetails, error) {
+	if hasContents {
+		err := fmt.Errorf("destination has content but no distributor state")
+		return catalogPlanDetails{
+			Action: ActionFailUnmanaged,
+			Reason: err.Error(),
+		}, fmt.Errorf("%s: %s", ActionFailUnmanaged, err)
+	}
 	if err := rejectCatalogUnmanagedCollisions(ctx, req.DestinationBackend, req.DestinationBundlePath, nil, outputs); err != nil {
 		return catalogPlanDetails{
 			Action: ActionFailUnmanaged,
@@ -252,6 +275,10 @@ func planWithoutCatalog(ctx context.Context, req Request, outputs []Output, work
 	}, nil
 }
 
+func forceCanReplace(action Action) bool {
+	return action == ActionFailUnmanaged || action == ActionFailConflict
+}
+
 func actionForWorkflow(workflow string) Action {
 	if workflow == config.WorkflowReplacement {
 		return ActionReplaceCatalog