Add "preview features" config switch (#2334)

* Initial working commit for preview features config

* Clean up code

* Update tests

* Remove unused imports

* Update message and options

* Update don't show again message

src/sql/parts/dashboard/common/dashboardPage.component.ts

@@ -31,7 +31,7 @@ import * as nls from 'vs/nls';
 import * as objects from 'vs/base/common/objects';
 import { Event, Emitter } from 'vs/base/common/event';
 import { Action } from 'vs/base/common/actions';
-import { ConfigurationTarget } from 'vs/platform/configuration/common/configuration';
+import { ConfigurationTarget, IConfigurationService } from 'vs/platform/configuration/common/configuration';
 import Severity from 'vs/base/common/severity';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { INotificationService } from 'vs/platform/notification/common/notification';
@@ -96,7 +96,8 @@ export abstract class DashboardPage extends AngularDisposable implements IConfig
 		@Inject(forwardRef(() => ChangeDetectorRef)) protected _cd: ChangeDetectorRef,
 		@Inject(IInstantiationService) private instantiationService: IInstantiationService,
 		@Inject(INotificationService) private notificationService: INotificationService,
-		@Inject(IAngularEventingService) private angularEventingService: IAngularEventingService
+		@Inject(IAngularEventingService) private angularEventingService: IAngularEventingService,
+		@Inject(IConfigurationService) private configurationService: IConfigurationService
 	) {
 		super();
 	}
@@ -138,6 +139,12 @@ export abstract class DashboardPage extends AngularDisposable implements IConfig
 		// Before separating tabs into pinned / shown, ensure that the home tab is always set up as expected
 		allTabs = this.setAndRemoveHomeTab(allTabs, homeWidgets);
 
+		// If preview features are disabled only show the home tab
+		let extensionTabsEnabled = this.configurationService.getValue('workbench')['enablePreviewFeatures'];
+		if (!extensionTabsEnabled) {
+			allTabs = [];
+		}
+
 		// Load tab setting configs
 		this._tabSettingConfigs = this.dashboardService.getSettings<Array<TabSettingConfig>>([this.context, 'tabs'].join('.'));
 
@@ -164,9 +171,13 @@ export abstract class DashboardPage extends AngularDisposable implements IConfig
 
 		// Set panel actions
 		let openedTabs = [...pinnedDashboardTabs, ...alwaysShowTabs];
-		let addNewTabAction = this.instantiationService.createInstance(AddFeatureTabAction, allTabs, openedTabs, this.dashboardService.getUnderlyingUri());
+		if (extensionTabsEnabled) {
-		this._tabsDispose.push(addNewTabAction);
+			let addNewTabAction = this.instantiationService.createInstance(AddFeatureTabAction, allTabs, openedTabs, this.dashboardService.getUnderlyingUri());
-		this.panelActions = [addNewTabAction];
+			this._tabsDispose.push(addNewTabAction);
+			this.panelActions = [addNewTabAction];
+		} else {
+			this.panelActions = [];
+		}
 		this._cd.detectChanges();
 
 		this._tabsDispose.push(this.dashboardService.onPinUnpinTab(e => {

src/sql/parts/dashboard/pages/databaseDashboardPage.component.ts

@@ -18,6 +18,7 @@ import * as nls from 'vs/nls';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { INotificationService } from 'vs/platform/notification/common/notification';
 import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
+import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 
 export class DatabaseDashboardPage extends DashboardPage implements OnInit {
 	protected propertiesWidget: WidgetConfig = {
@@ -43,9 +44,10 @@ export class DatabaseDashboardPage extends DashboardPage implements OnInit {
 		@Inject(forwardRef(() => ElementRef)) el: ElementRef,
 		@Inject(IInstantiationService) instantiationService: IInstantiationService,
 		@Inject(INotificationService) notificationService: INotificationService,
-		@Inject(IAngularEventingService) angularEventingService: IAngularEventingService
+		@Inject(IAngularEventingService) angularEventingService: IAngularEventingService,
+		@Inject(IConfigurationService) configurationService: IConfigurationService
 	) {
-		super(dashboardService, el, _cd, instantiationService, notificationService, angularEventingService);
+		super(dashboardService, el, _cd, instantiationService, notificationService, angularEventingService, configurationService);
 		this._register(dashboardService.onUpdatePage(() => {
 			this.refresh(true);
 			this._cd.detectChanges();

src/sql/parts/dashboard/pages/serverDashboardPage.component.ts

@@ -18,6 +18,7 @@ import * as nls from 'vs/nls';
 import { INotificationService } from 'vs/platform/notification/common/notification';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
+import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 
 export class ServerDashboardPage extends DashboardPage implements OnInit {
 	protected propertiesWidget: WidgetConfig = {
@@ -44,9 +45,10 @@ export class ServerDashboardPage extends DashboardPage implements OnInit {
 		@Inject(forwardRef(() => ElementRef)) el: ElementRef,
 		@Inject(IInstantiationService) instantiationService: IInstantiationService,
 		@Inject(INotificationService) notificationService: INotificationService,
-		@Inject(IAngularEventingService) angularEventingService: IAngularEventingService
+		@Inject(IAngularEventingService) angularEventingService: IAngularEventingService,
+		@Inject(IConfigurationService) configurationService: IConfigurationService
 	) {
-		super(dashboardService, el, _cd, instantiationService, notificationService, angularEventingService);
+		super(dashboardService, el, _cd, instantiationService, notificationService, angularEventingService, configurationService);
 		// revert back to default database
 		this._letDashboardPromise = this.dashboardService.connectionManagementService.changeDatabase('master');
 	}

src/sql/parts/grid/views/editData/editData.component.ts

@@ -88,7 +88,7 @@ export class EditDataComponent extends GridParentComponent implements OnInit, On
 		@Inject(forwardRef(() => ChangeDetectorRef)) cd: ChangeDetectorRef,
 		@Inject(IBootstrapParams) params: IEditDataComponentParams,
 		@Inject(IInstantiationService) private instantiationService: IInstantiationService,
-		@Inject(INotificationService) private notificationService: INotificationService,
+		@Inject(INotificationService) notificationService: INotificationService,
 		@Inject(IContextMenuService) contextMenuService: IContextMenuService,
 		@Inject(IKeybindingService) keybindingService: IKeybindingService,
 		@Inject(IContextKeyService) contextKeyService: IContextKeyService,
@@ -96,7 +96,7 @@ export class EditDataComponent extends GridParentComponent implements OnInit, On
 		@Inject(IClipboardService) clipboardService: IClipboardService,
 		@Inject(IQueryEditorService) queryEditorService: IQueryEditorService
 	) {
-		super(el, cd, contextMenuService, keybindingService, contextKeyService, configurationService, clipboardService, queryEditorService);
+		super(el, cd, contextMenuService, keybindingService, contextKeyService, configurationService, clipboardService, queryEditorService, notificationService);
 		this._el.nativeElement.className = 'slickgridContainer';
 		this.dataService = params.dataService;
 		this.actionProvider = this.instantiationService.createInstance(EditDataGridActionProvider, this.dataService, this.onGridSelectAll(), this.onDeleteRow(), this.onRevertRow());

src/sql/parts/grid/views/gridParentComponent.ts

@@ -37,6 +37,7 @@ import { IDisposable, dispose } from 'vs/base/common/lifecycle';
 import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 import { IClipboardService } from 'vs/platform/clipboard/common/clipboardService';
 import { StandardKeyboardEvent } from 'vs/base/browser/keyboardEvent';
+import { INotificationService } from 'vs/platform/notification/common/notification';
 
 export abstract class GridParentComponent {
 	// CONSTANTS
@@ -100,7 +101,8 @@ export abstract class GridParentComponent {
 		protected contextKeyService: IContextKeyService,
 		protected configurationService: IConfigurationService,
 		protected clipboardService: IClipboardService,
-		protected queryEditorService: IQueryEditorService
+		protected queryEditorService: IQueryEditorService,
+		protected notificationService: INotificationService
 	) {
 		this.toDispose = [];
 	}

src/sql/parts/grid/views/query/query.component.ts

@@ -42,6 +42,8 @@ import { IKeybindingService } from 'vs/platform/keybinding/common/keybinding';
 import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
 import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 import { IClipboardService } from 'vs/platform/clipboard/common/clipboardService';
+import { INotificationService } from 'vs/platform/notification/common/notification';
+import { localize } from 'vs/nls';
 
 export const QUERY_SELECTOR: string = 'query-component';
 
@@ -126,7 +128,9 @@ export class QueryComponent extends GridParentComponent implements OnInit, OnDes
 			}
 		},
 		{
-			showCondition: () => { return true; },
+			showCondition: () => {
+				return this.configurationService.getValue('workbench')['enablePreviewFeatures'];
+			},
 			icon: () => { return 'viewChart'; },
 			hoverText: () => { return LocalizedConstants.viewChartLabel; },
 			functionality: (batchId, resultId, index) => {
@@ -187,9 +191,10 @@ export class QueryComponent extends GridParentComponent implements OnInit, OnDes
 		@Inject(IContextKeyService) contextKeyService: IContextKeyService,
 		@Inject(IConfigurationService) configurationService: IConfigurationService,
 		@Inject(IClipboardService) clipboardService: IClipboardService,
-		@Inject(IQueryEditorService) queryEditorService: IQueryEditorService
+		@Inject(IQueryEditorService) queryEditorService: IQueryEditorService,
+		@Inject(INotificationService) notificationService: INotificationService,
 	) {
-		super(el, cd, contextMenuService, keybindingService, contextKeyService, configurationService, clipboardService, queryEditorService);
+		super(el, cd, contextMenuService, keybindingService, contextKeyService, configurationService, clipboardService, queryEditorService, notificationService);
 		this._el.nativeElement.className = 'slickgridContainer';
 		this.rowHeight = configurationService.getValue<any>('resultsGrid').rowHeight;
 		configurationService.onDidChangeConfiguration(e => {

src/sql/parts/query/editor/queryEditor.ts

@@ -44,6 +44,7 @@ import { IQueryModelService } from 'sql/parts/query/execution/queryModel';
 import { IEditorDescriptorService } from 'sql/parts/query/editor/editorDescriptorService';
 import { IConnectionManagementService } from 'sql/parts/connection/common/connectionManagement';
 import { attachEditableDropdownStyler } from 'sql/common/theme/styler';
+import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 import { CancellationToken } from 'vs/base/common/cancellation';
 import { ICodeEditor } from 'vs/editor/browser/editorBrowser';
 
@@ -96,7 +97,8 @@ export class QueryEditor extends BaseEditor {
 		@IQueryModelService private _queryModelService: IQueryModelService,
 		@IEditorDescriptorService private _editorDescriptorService: IEditorDescriptorService,
 		@IContextKeyService contextKeyService: IContextKeyService,
-		@IConnectionManagementService private _connectionManagementService: IConnectionManagementService
+		@IConnectionManagementService private _connectionManagementService: IConnectionManagementService,
+		@IConfigurationService private _configurationService: IConfigurationService
 	) {
 		super(QueryEditor.ID, _telemetryService, themeService);
 
@@ -446,6 +448,16 @@ export class QueryEditor extends BaseEditor {
 		this._estimatedQueryPlanAction = this._instantiationService.createInstance(EstimatedQueryPlanAction, this);
 		this._actualQueryPlanAction = this._instantiationService.createInstance(ActualQueryPlanAction, this);
 
+		this.setTaskbarContent();
+
+		this._configurationService.onDidChangeConfiguration(e => {
+			if (e.affectedKeys.includes('workbench.enablePreviewFeatures')) {
+				this.setTaskbarContent();
+			}
+		});
+	}
+
+	private setTaskbarContent(): void {
 		// Create HTML Elements for the taskbar
 		let separator = Taskbar.createTaskbarSeparator();
 
@@ -460,6 +472,13 @@ export class QueryEditor extends BaseEditor {
 			{ element: separator },
 			{ action: this._estimatedQueryPlanAction }
 		];
+
+		// Remove the estimated query plan action if preview features are not enabled
+		let previewFeaturesEnabled = this._configurationService.getValue('workbench')['enablePreviewFeatures'];
+		if (!previewFeaturesEnabled) {
+			content = content.slice(0, -2);
+		}
+
 		this._taskbar.setContent(content);
 	}
 

src/sql/parts/query/views/queryOutput.component.ts

@@ -22,6 +22,7 @@ import { PanelComponent, IPanelOptions } from 'sql/base/browser/ui/panel/panel.c
 
 import * as nls from 'vs/nls';
 import { IDisposable } from 'vs/base/common/lifecycle';
+import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 
 export const QUERY_OUTPUT_SELECTOR: string = 'query-output-component';
 
@@ -66,7 +67,8 @@ export class QueryOutputComponent implements OnDestroy {
 	constructor(
 		@Inject(forwardRef(() => ElementRef)) el: ElementRef,
 		@Inject(forwardRef(() => ChangeDetectorRef)) private _cd: ChangeDetectorRef,
-		@Inject(IBootstrapParams) public queryParameters: IQueryComponentParams
+		@Inject(IBootstrapParams) public queryParameters: IQueryComponentParams,
+		@Inject(IConfigurationService) private _configurationService: IConfigurationService
 	) {
 	}
 
@@ -75,12 +77,14 @@ export class QueryOutputComponent implements OnDestroy {
 	 */
 	public ngAfterViewInit(): void {
 		this._disposables.push(toDisposableSubscription(this.queryComponent.queryPlanAvailable.subscribe((xml) => {
-			this.hasQueryPlan = true;
+			if (this._configurationService.getValue('workbench')['enablePreviewFeatures']) {
-			this._cd.detectChanges();
+				this.hasQueryPlan = true;
-			this._panel.selectTab(this.topOperationsTabIdentifier);
+				this._cd.detectChanges();
-			this.topOperationsComponent.planXml = xml;
+				this._panel.selectTab(this.topOperationsTabIdentifier);
-			this._panel.selectTab(this.queryPlanTabIdentifier);
+				this.topOperationsComponent.planXml = xml;
-			this.queryPlanComponent.planXml = xml;
+				this._panel.selectTab(this.queryPlanTabIdentifier);
+				this.queryPlanComponent.planXml = xml;
+			}
 		})));
 
 		this._disposables.push(toDisposableSubscription(this.queryComponent.showChartRequested.subscribe((dataSet) => {

src/sql/workbench/common/actions.contribution.ts

@@ -14,6 +14,7 @@ import { IWorkbenchActionRegistry, Extensions as ActionExtensions } from 'vs/wor
 import { IWorkbenchContributionsRegistry, Extensions as WorkbenchExtensions } from 'vs/workbench/common/contributions';
 import { ShowCurrentReleaseNotesAction } from 'sql/workbench/update/releaseNotes';
 import { LifecyclePhase } from 'vs/platform/lifecycle/common/lifecycle';
+import { IConfigurationRegistry, Extensions as ConfigExtensions } from 'vs/platform/configuration/common/configurationRegistry';
 
 new Actions.BackupAction().registerTask(false);
 new Actions.RestoreAction().registerTask(false);
@@ -23,3 +24,16 @@ new Actions.ConfigureDashboardAction().registerTask();
 // add product update and release notes contributions
 Registry.as<IWorkbenchActionRegistry>(ActionExtensions.WorkbenchActions)
 	.registerWorkbenchAction(new SyncActionDescriptor(ShowCurrentReleaseNotesAction, ShowCurrentReleaseNotesAction.ID, ShowCurrentReleaseNotesAction.LABEL), 'Show Getting Started');
+
+Registry.as<IConfigurationRegistry>(ConfigExtensions.Configuration).registerConfiguration({
+	'id': 'previewFeatures',
+	'title': nls.localize('previewFeatures.configTitle', 'Preview Features'),
+	'type': 'object',
+	'properties': {
+		'workbench.enablePreviewFeatures': {
+			'type': 'boolean',
+			'default': undefined,
+			'description': nls.localize('previewFeatures.configEnable', 'Enable unreleased preview features')
+		}
+	}
+});

src/sql/workbench/common/actions.ts

@@ -27,6 +27,8 @@ import { IWindowsService } from 'vs/platform/windows/common/windows';
 import * as nls from 'vs/nls';
 import { IEditorService } from 'vs/workbench/services/editor/common/editorService';
 import { ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
+import { IWorkspaceConfigurationService } from 'vs/workbench/services/configuration/common/configuration';
+import { INotificationService } from 'vs/platform/notification/common/notification';
 
 export interface BaseActionContext {
 	object?: ObjectMetadata;
@@ -300,6 +302,14 @@ export class BackupAction extends Task {
 	}
 
 	runTask(accessor: ServicesAccessor, profile: IConnectionProfile): TPromise<void> {
+		let configurationService = accessor.get<IWorkspaceConfigurationService>(IWorkspaceConfigurationService);
+		let previewFeaturesEnabled: boolean = configurationService.getValue('workbench')['enablePreviewFeatures'];
+		if (!previewFeaturesEnabled) {
+			return new TPromise<void>((resolve, reject) => {
+				accessor.get<INotificationService>(INotificationService).info(nls.localize('backup.isPreviewFeature', 'You must enable preview features in order to use backup'));
+			});
+		}
+
 		return new TPromise<void>((resolve, reject) => {
 			TaskUtilities.showBackup(
 				profile,
@@ -331,6 +341,14 @@ export class RestoreAction extends Task {
 	}
 
 	runTask(accessor: ServicesAccessor, profile: IConnectionProfile): TPromise<void> {
+		let configurationService = accessor.get<IWorkspaceConfigurationService>(IWorkspaceConfigurationService);
+		let previewFeaturesEnabled: boolean = configurationService.getValue('workbench')['enablePreviewFeatures'];
+		if (!previewFeaturesEnabled) {
+			return new TPromise<void>((resolve, reject) => {
+				accessor.get<INotificationService>(INotificationService).info(nls.localize('restore.isPreviewFeature', 'You must enable preview features in order to use restore'));
+			});
+		}
+
 		return new TPromise<void>((resolve, reject) => {
 			TaskUtilities.showRestore(
 				profile,

src/sql/workbench/electron-browser/enablePreviewFeatures.ts

@@ -0,0 +1,70 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import { IWorkbenchContribution } from 'vs/workbench/common/contributions';
+import { IStorageService } from 'vs/platform/storage/common/storage';
+import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
+import { IOpenerService } from 'vs/platform/opener/common/opener';
+import { INotificationService, Severity } from 'vs/platform/notification/common/notification';
+import { localize } from 'vs/nls';
+import { onUnexpectedError } from 'vs/base/common/errors';
+import { IWindowService, IWindowsService } from 'vs/platform/windows/common/windows';
+import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
+
+export class EnablePreviewFeatures implements IWorkbenchContribution {
+
+	private static ENABLE_PREVIEW_FEATURES_SHOWN = 'workbench.enablePreviewFeaturesShown';
+
+	constructor(
+		@IStorageService storageService: IStorageService,
+		@IOpenerService openerService: IOpenerService,
+		@INotificationService notificationService: INotificationService,
+		@IWindowService windowService: IWindowService,
+		@IWindowsService windowsService: IWindowsService,
+		@ITelemetryService telemetryService: ITelemetryService,
+		@IConfigurationService configurationService: IConfigurationService
+	) {
+		let previewFeaturesEnabled = configurationService.getValue('workbench')['enablePreviewFeatures'];
+		if (previewFeaturesEnabled || storageService.get(EnablePreviewFeatures.ENABLE_PREVIEW_FEATURES_SHOWN)) {
+			return;
+		}
+		Promise.all([
+			windowService.isFocused(),
+			windowsService.getWindowCount()
+		]).then(([focused, count]) => {
+			if (!focused && count > 1) {
+				return null;
+			}
+			configurationService.updateValue('workbench.enablePreviewFeatures', false);
+
+			const enablePreviewFeaturesNotice = localize('enablePreviewFeatures.notice', "Would you like to enable preview features?");
+			notificationService.prompt(
+				Severity.Info,
+				enablePreviewFeaturesNotice,
+				[{
+					label: localize('enablePreviewFeatures.yes', "Yes"),
+					run: () => {
+						configurationService.updateValue('workbench.enablePreviewFeatures', true);
+						storageService.store(EnablePreviewFeatures.ENABLE_PREVIEW_FEATURES_SHOWN, true);
+					}
+				}, {
+					label: localize('enablePreviewFeatures.no', "No"),
+					run: () => {
+						configurationService.updateValue('workbench.enablePreviewFeatures', false);
+					}
+				}, {
+					label: localize('enablePreviewFeatures.never', "No, don't show again"),
+					run: () => {
+						configurationService.updateValue('workbench.enablePreviewFeatures', false);
+						storageService.store(EnablePreviewFeatures.ENABLE_PREVIEW_FEATURES_SHOWN, true);
+					},
+					isSecondary: true
+				}]
+			);
+		})
+			.then(null, onUnexpectedError);
+	}
+}

src/sqltest/parts/query/editor/queryEditor.test.ts

@@ -6,7 +6,6 @@
 'use strict';
 
 import { InstantiationService } from 'vs/platform/instantiation/common/instantiationService';
-import { EditorInput } from 'vs/workbench/common/editor';
 import { IEditorDescriptor } from 'vs/workbench/browser/editor';
 import { TPromise } from 'vs/base/common/winjs.base';
 import URI from 'vs/base/common/uri';
@@ -30,8 +29,9 @@ import * as TypeMoq from 'typemoq';
 import * as assert from 'assert';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { BaseEditor } from 'vs/workbench/browser/parts/editor/baseEditor';
-import { INotification, INotificationService } from 'vs/platform/notification/common/notification';
+import { INotificationService } from 'vs/platform/notification/common/notification';
 import { TestNotificationService } from 'vs/platform/notification/test/common/testNotificationService';
+import { ConfigurationService } from 'vs/platform/configuration/node/configurationService';
 
 suite('SQL QueryEditor Tests', () => {
 	let queryModelService: QueryModelService;
@@ -40,6 +40,7 @@ suite('SQL QueryEditor Tests', () => {
 	let notificationService: TypeMoq.Mock<INotificationService>;
 	let editorDescriptorService: TypeMoq.Mock<EditorDescriptorService>;
 	let connectionManagementService: TypeMoq.Mock<ConnectionManagementService>;
+	let configurationService: TypeMoq.Mock<ConfigurationService>;
 	let memento: TypeMoq.Mock<Memento>;
 
 	let queryInput: QueryInput;
@@ -57,7 +58,8 @@ suite('SQL QueryEditor Tests', () => {
 			undefined,
 			editorDescriptorService.object,
 			undefined,
-			undefined);
+			undefined,
+			configurationService.object);
 	};
 
 	setup(() => {
@@ -134,6 +136,14 @@ suite('SQL QueryEditor Tests', () => {
 
 		// Create a QueryModelService
 		queryModelService = new QueryModelService(instantiationService.object, notificationService.object);
+
+		configurationService = TypeMoq.Mock.ofInstance({
+			getValue: () => undefined,
+			onDidChangeConfiguration: () => undefined
+		} as any);
+		configurationService.setup(x => x.getValue(TypeMoq.It.isAny())).returns(() => {
+			return { enablePreviewFeatures: true };
+		});
 	});
 
 	test('createEditor creates only the taskbar', (done) => {

src/vs/workbench/parts/welcome/gettingStarted/electron-browser/gettingStarted.contribution.ts

@@ -9,6 +9,8 @@ import { GettingStarted } from './gettingStarted';
 import { TelemetryOptOut } from './telemetryOptOut';
 import { IWorkbenchContributionsRegistry, Extensions as WorkbenchExtensions } from 'vs/workbench/common/contributions';
 import { LifecyclePhase } from 'vs/platform/lifecycle/common/lifecycle';
+// {{SQL CARBON EDIT}} - Add preview feature switch
+import { EnablePreviewFeatures } from 'sql/workbench/electron-browser/enablePreviewFeatures';
 
 // {{SQL CARBON EDIT}}
 // Registry
@@ -22,3 +24,8 @@ Registry
 Registry
 	.as<IWorkbenchContributionsRegistry>(WorkbenchExtensions.Workbench)
 	.registerWorkbenchContribution(TelemetryOptOut, LifecyclePhase.Eventually);
+
+// {{SQL CARBON EDIT}} - Add preview feature switch
+Registry
+	.as<IWorkbenchContributionsRegistry>(WorkbenchExtensions.Workbench)
+	.registerWorkbenchContribution(EnablePreviewFeatures, LifecyclePhase.Eventually);