show message when entering workspace (for #31182)

src/vs/workbench/services/workspace/node/workspaceEditingService.ts

@@ -16,7 +16,7 @@ import { IWorkspaceIdentifier } from 'vs/platform/workspaces/common/workspaces';
 import { IWorkspaceConfigurationService } from 'vs/workbench/services/configuration/common/configuration';
 import { WorkspaceService } from 'vs/workbench/services/configuration/node/configurationService';
 import { migrateStorageToMultiRootWorkspace } from 'vs/platform/storage/common/migration';
-import { IStorageService } from 'vs/platform/storage/common/storage';
+import { IStorageService, StorageScope } from 'vs/platform/storage/common/storage';
 import { StorageService } from 'vs/platform/storage/common/storageService';
 import { ConfigurationScope, IConfigurationRegistry, Extensions as ConfigurationExtensions } from 'vs/platform/configuration/common/configurationRegistry';
 import { Registry } from 'vs/platform/registry/common/platform';
@@ -28,11 +28,15 @@ import { ICommandService } from 'vs/platform/commands/common/commands';
 import { distinct } from 'vs/base/common/arrays';
 import { isLinux } from 'vs/base/common/platform';
 import { isEqual } from 'vs/base/common/resources';
+import { Action } from 'vs/base/common/actions';
+import product from 'vs/platform/node/product';
 
 export class WorkspaceEditingService implements IWorkspaceEditingService {
 
 	public _serviceBrand: any;
 
+	private static INFO_MESSAGE_KEY = 'enterWorkspace.message';
+
 	constructor(
 		@IJSONEditingService private jsonEditingService: IJSONEditingService,
 		@IWorkspaceContextService private contextService: WorkspaceService,
@@ -149,6 +153,9 @@ export class WorkspaceEditingService implements IWorkspaceEditingService {
 			if (result) {
 				return this.migrate(result.workspace).then(() => {
 
+					// Show message to user (once)
+					this.informUserOnce(); // TODO@Ben remove me after a couple of releases
+
 					// Reinitialize backup service
 					const backupFileService = this.backupFileService as BackupFileService; // TODO@Ben ugly cast
 					backupFileService.initialize(result.backupPath);
@@ -167,6 +174,53 @@ export class WorkspaceEditingService implements IWorkspaceEditingService {
 		});
 	}
 
+	private informUserOnce(): void {
+		if (product.quality !== 'stable') {
+			return; // only for stable
+		}
+
+		if (this.storageService.getBoolean(WorkspaceEditingService.INFO_MESSAGE_KEY)) {
+			return; // user does not want to see it again
+		}
+
+		const okAction = new Action(
+			'enterWorkspace.ok',
+			nls.localize('integrity.ok', "OK"),
+			null,
+			true,
+			() => TPromise.as(true)
+		);
+
+		const dontShowAgainAction = new Action(
+			'enterWorkspace.dontShowAgain',
+			nls.localize('enterWorkspace.dontShowAgain', "Don't Show Again"),
+			null,
+			true,
+			() => {
+				this.storageService.store(WorkspaceEditingService.INFO_MESSAGE_KEY, true, StorageScope.GLOBAL);
+
+				return TPromise.as(true);
+			}
+		);
+		const moreInfoAction = new Action(
+			'enterWorkspace.moreInfo',
+			nls.localize('enterWorkspace.moreInfo', "More Information"),
+			null,
+			true,
+			() => {
+				const uri = URI.parse(product.documentationUrl);
+				window.open(uri.toString(true));
+
+				return TPromise.as(true);
+			}
+		);
+
+		this.messageService.show(Severity.Info, {
+			message: nls.localize('enterWorkspace.prompt', "The opened workspace changed into a multi-root workspace."),
+			actions: [okAction, moreInfoAction, dontShowAgainAction]
+		});
+	}
+
 	private migrate(toWorkspace: IWorkspaceIdentifier): TPromise<void> {
 
 		// Storage (UI State) migration