Asset-owned topdata

internal/project/project.go

@@ -1457,10 +1457,11 @@ func validateGeneratedConfig(cfg GeneratedConfig) []error {
 			failures = append(failures, fmt.Errorf("%s.include_datasets must contain at least one pattern", fieldPrefix))
 		}
 		failures = append(failures, validateGlobList(fieldPrefix+".include_datasets", top2da.IncludeDatasets)...)
-		switch strings.TrimSpace(top2da.Autogen.Mode) {
+		autogenMode := strings.TrimSpace(top2da.Autogen.Mode)
+		switch autogenMode {
 		case "parts_rows", "cachedmodels_rows":
 		case "":
-			failures = append(failures, fmt.Errorf("%s.autogen.mode is required", fieldPrefix))
+			continue
 		default:
 			failures = append(failures, fmt.Errorf("%s.autogen.mode %q is not supported", fieldPrefix, top2da.Autogen.Mode))
 		}
@@ -1473,7 +1474,7 @@ func validateGeneratedConfig(cfg GeneratedConfig) []error {
 		}
 		failures = append(failures, validateGlobList(fieldPrefix+".autogen.include", top2da.Autogen.Include)...)
 		failures = append(failures, validateAutogenDeriveConfig(fieldPrefix+".autogen.derive", top2da.Autogen.Derive)...)
-		if strings.TrimSpace(top2da.Autogen.Mode) == "parts_rows" && partsRowsConfigConfigured(top2da.Autogen.PartsRows) {
+		if autogenMode == "parts_rows" && partsRowsConfigConfigured(top2da.Autogen.PartsRows) {
 			failures = append(failures, validatePartsRowsConfig(fieldPrefix+".autogen.parts_rows", top2da.Autogen.PartsRows)...)
 		}
 	}

internal/project/project_test.go

@@ -1092,6 +1092,13 @@ func TestValidateLayoutAcceptsGeneratedTopData2DAConfig(t *testing.T) {
 							Derive:  AutogenDeriveConfig{Kind: "model_stem", GroupFrom: "first_path_segment"},
 						},
 					},
+					{
+						ID:              "static_topdata",
+						Source:          "topdata",
+						Output:          "{paths.cache}/generated-assets/static-topdata-2da",
+						IncludeDatasets: []string{"tailmodel", "wingmodel"},
+						PackageRoot:     "part",
+					},
 				},
 			},
 		},
@@ -1106,6 +1113,41 @@ func TestValidateLayoutAcceptsGeneratedTopData2DAConfig(t *testing.T) {
 	}
 }
 
+func TestValidateLayoutRejectsUnsupportedGeneratedTopDataAutogenMode(t *testing.T) {
+	root := t.TempDir()
+	mkdirAll(t, filepath.Join(root, "assets"))
+	mkdirAll(t, filepath.Join(root, "build"))
+	proj := Project{
+		Root: root,
+		Config: Config{
+			Module: ModuleConfig{Name: "Test", ResRef: "testmod"},
+			Paths:  PathConfig{Assets: "assets"},
+			Generated: GeneratedConfig{
+				TopData2DA: []GeneratedTopData2DAConfig{
+					{
+						ID:              "bad",
+						Source:          "topdata",
+						Output:          "{paths.cache}/generated-assets/bad-2da",
+						IncludeDatasets: []string{"tailmodel"},
+						PackageRoot:     "part",
+						Autogen: AutogenConsumerConfig{
+							Mode:    "unknown_rows",
+							Root:    "part",
+							Include: []string{"**/*.mdl"},
+							Derive:  AutogenDeriveConfig{Kind: "model_stem", GroupFrom: "first_path_segment"},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	err := proj.ValidateLayout()
+	if err == nil || !strings.Contains(err.Error(), `generated_assets.topdata_2da[0].autogen.mode "unknown_rows" is not supported`) {
+		t.Fatalf("expected unsupported generated autogen mode validation error, got %v", err)
+	}
+}
+
 func TestValidateLayoutRejectsEscapingGeneratedTopData2DAConfig(t *testing.T) {
 	root := t.TempDir()
 	mkdirAll(t, filepath.Join(root, "assets"))