feat(config): forge each casting document against a reconciled lock

cmd/foundryctl/cast.go

@@ -63,6 +63,11 @@ func runCast(ctx context.Context, logger *slog.Logger, poursPath string, configP
 		}
 	}
 
-	err = foundry.Cast(ctx, machineries, poursPath)
-	return props, err
+	for _, machinery := range machineries {
+		if err := foundry.Cast(ctx, machinery, poursPath); err != nil {
+			return props, err
+		}
+	}
+
+	return props, nil
 }

cmd/foundryctl/forge.go

@@ -37,6 +37,10 @@ func runForge(ctx context.Context, logger *slog.Logger, path string, poursPath s
 		return domain.NewProperties(), err
 	}
 
+	if err := foundry.Config.PruneV1Alpha1Lock(ctx, machineries, path); err != nil {
+		return domain.NewProperties(), err
+	}
+
 	props := domain.NewProperties()
 	for _, machinery := range machineries {
 		if machinery.Kind() == v1alpha1.KindInstallation {
@@ -49,6 +53,11 @@ func runForge(ctx context.Context, logger *slog.Logger, path string, poursPath s
 		return props, err
 	}
 
-	err = foundry.Forge(ctx, machineries, path, &writer.Options{Output: &os.File{}, TargetDirectory: poursAbsPath})
-	return props, err
+	for _, machinery := range machineries {
+		if err := foundry.Forge(ctx, machinery, path, &writer.Options{Output: &os.File{}, TargetDirectory: poursAbsPath}); err != nil {
+			return props, err
+		}
+	}
+
+	return props, nil
 }

internal/config/config.go

@@ -11,8 +11,14 @@ type Config interface {
 	// document the file holds, and returns them in cast order.
 	GetV1Alpha1(ctx context.Context, path string) ([]v1alpha1.Machinery, error)
 
-	// CreateV1Alpha1Lock writes the resolved castings to the lock file.
-	CreateV1Alpha1Lock(ctx context.Context, machineries []v1alpha1.Machinery, path string) error
+	// CreateOrUpdateV1Alpha1Lock replaces the casting's entry in the lock file,
+	// keeping every other entry. A missing lock starts empty.
+	CreateOrUpdateV1Alpha1Lock(ctx context.Context, machinery v1alpha1.Machinery, path string) error
+
+	// PruneV1Alpha1Lock drops lock entries for castings the file no longer
+	// declares; entries for declared castings are untouched. A lock left with
+	// no entries is removed.
+	PruneV1Alpha1Lock(ctx context.Context, declared []v1alpha1.Machinery, path string) error
 
 	// GetV1Alpha1Lock reads the lock file from disk.
 	GetV1Alpha1Lock(ctx context.Context, path string) ([]v1alpha1.Machinery, error)