Revert "debt - remove unused node dialog service"

This reverts commit c9efee46.

src/tsconfig.strictNullChecks.json

@@ -400,6 +400,7 @@
 		"./vs/platform/diagnostics/electron-main/diagnosticsService.ts",
 		"./vs/platform/dialogs/common/dialogs.ts",
 		"./vs/platform/dialogs/node/dialogIpc.ts",
+		"./vs/platform/dialogs/node/dialogService.ts",
 		"./vs/platform/download/common/download.ts",
 		"./vs/platform/download/node/downloadIpc.ts",
 		"./vs/platform/download/node/downloadService.ts",

src/vs/code/electron-main/main.ts

@@ -36,6 +36,8 @@ import { IDiagnosticsService, DiagnosticsService } from 'vs/platform/diagnostics
 import { BufferLogService } from 'vs/platform/log/common/bufferLog';
 import { uploadLogs } from 'vs/code/electron-main/logUploader';
 import { setUnexpectedErrorHandler } from 'vs/base/common/errors';
+import { IDialogService } from 'vs/platform/dialogs/common/dialogs';
+import { CommandLineDialogService } from 'vs/platform/dialogs/node/dialogService';
 import { createWaitMarkerFile } from 'vs/code/node/wait';
 
 class ExpectedError extends Error {
@@ -308,6 +310,7 @@ function createServices(args: ParsedArgs, bufferLogService: BufferLogService): I
 	services.set(IStateService, new SyncDescriptor(StateService));
 	services.set(IConfigurationService, new SyncDescriptor(ConfigurationService));
 	services.set(IRequestService, new SyncDescriptor(RequestService));
+	services.set(IDialogService, new SyncDescriptor(CommandLineDialogService));
 	services.set(IDiagnosticsService, new SyncDescriptor(DiagnosticsService));
 
 	return new InstantiationService(services, true);

src/vs/platform/dialogs/node/dialogService.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as readline from 'readline';
+import { IDialogService, IConfirmation, IConfirmationResult } from 'vs/platform/dialogs/common/dialogs';
+import Severity from 'vs/base/common/severity';
+import { localize } from 'vs/nls';
+import { canceled } from 'vs/base/common/errors';
+
+export class CommandLineDialogService implements IDialogService {
+
+	_serviceBrand: any;
+
+	show(severity: Severity, message: string, options: string[]): Promise<number> {
+		const promise = new Promise<number>((c, e) => {
+			const rl = readline.createInterface({
+				input: process.stdin,
+				output: process.stdout,
+				terminal: true
+			});
+			rl.prompt();
+			rl.write(this.toQuestion(message, options));
+
+			rl.prompt();
+
+			rl.once('line', (answer) => {
+				rl.close();
+				c(this.toOption(answer, options));
+			});
+			rl.once('SIGINT', () => {
+				rl.close();
+				e(canceled());
+			});
+		});
+		return promise;
+	}
+
+	private toQuestion(message: string, options: string[]): string {
+		return options.reduce((previousValue: string, currentValue: string, currentIndex: number) => {
+			return previousValue + currentValue + '(' + currentIndex + ')' + (currentIndex < options.length - 1 ? ' | ' : '\n');
+		}, message + ' ');
+	}
+
+	private toOption(answer: string, options: string[]): number {
+		const value = parseInt(answer);
+		if (!isNaN(value)) {
+			return value;
+		}
+		answer = answer.toLocaleLowerCase();
+		for (let i = 0; i < options.length; i++) {
+			if (options[i].toLocaleLowerCase() === answer) {
+				return i;
+			}
+		}
+		return -1;
+	}
+
+	confirm(confirmation: IConfirmation): Promise<IConfirmationResult> {
+		return this.show(Severity.Info, confirmation.message, [confirmation.primaryButton || localize('ok', "Ok"), confirmation.secondaryButton || localize('cancel', "Cancel")]).then(index => {
+			return {
+				confirmed: index === 0
+			} as IConfirmationResult;
+		});
+	}
+}