feat: deprecate support for Xcode 10 and below

lib/common/declarations.d.ts

@@ -1046,6 +1046,12 @@ interface ISysInfo {
 	 * @return {string} The range of supported Node.js versions.
 	 */
 	getSupportedNodeVersionRange(): string;
+
+	/**
+	 * Gets warning message in case the currently installed Xcode will not be supported in next versions
+	 * @returns {string}
+	 */
+	getXcodeWarning(): Promise<string>;
 }
 
 interface IHostInfo {

lib/constants.ts

@@ -242,9 +242,12 @@ export class MacOSVersions {
 	public static Sierra = "10.12";
 	public static HighSierra = "10.13";
 	public static Mojave = "10.14";
+	public static Catalina = "10.15";
 }
 
 export const MacOSDeprecationStringFormat = "NativeScript does not support macOS %s and some functionality may not work. Please, upgrade to the latest macOS version.";
+export const XcodeDeprecationStringFormat = "The current Xcode version %s will not be supported in the next release of NativeScript. Consider updating your Xcode to latest official version.";
+
 export const PROGRESS_PRIVACY_POLICY_URL = "https://www.progress.com/legal/privacy-policy";
 export class SubscribeForNewsletterMessages {
 	public static AgreeToReceiveEmailMsg = "I agree".green.bold + " to receive email communications from Progress Software in the form of the NativeScript Newsletter. Consent may be withdrawn at any time.";

lib/services/ios-project-service.ts

@@ -54,7 +54,8 @@ export class IOSProjectService extends projectServiceBaseLib.PlatformProjectServ
 		private $xcodebuildService: IXcodebuildService,
 		private $iOSExtensionsService: IIOSExtensionsService,
 		private $iOSWatchAppService: IIOSWatchAppService,
-		private $iOSNativeTargetService: IIOSNativeTargetService) {
+		private $iOSNativeTargetService: IIOSNativeTargetService,
+		private $sysInfo: ISysInfo) {
 		super($fs, $projectDataService);
 	}
 
@@ -138,6 +139,12 @@ export class IOSProjectService extends projectServiceBaseLib.PlatformProjectServ
 			notConfiguredEnvOptions
 		});
 
+		if (checkEnvironmentRequirementsOutput && checkEnvironmentRequirementsOutput.canExecute) {
+			const xcodeWarning = await this.$sysInfo.getXcodeWarning();
+			if (xcodeWarning) {
+				this.$logger.warn(xcodeWarning);
+			}
+		}
 		return {
 			checkEnvironmentRequirementsOutput
 		};

lib/sys-info.ts

@@ -1,9 +1,10 @@
 import * as path from "path";
 import { format } from "util";
 import { sysInfo } from "nativescript-doctor";
-import { MacOSVersions, MacOSDeprecationStringFormat } from "./constants";
+import { MacOSVersions, MacOSDeprecationStringFormat, XcodeDeprecationStringFormat } from "./constants";
 import { getNodeWarning } from "./common/verify-node-version";
 import { exported } from "./common/decorators";
+import * as semver from "semver";
 
 export class SysInfo implements ISysInfo {
 	private sysInfo: ISysInfoData = null;
@@ -82,5 +83,15 @@ export class SysInfo implements ISysInfo {
 
 		return null;
 	}
+
+	public async getXcodeWarning(): Promise<string> {
+		const xcodeVersion = await this.getXcodeVersion();
+		if (xcodeVersion && semver.lt(semver.coerce(xcodeVersion), "11.0.0")) {
+			const message = format(XcodeDeprecationStringFormat, xcodeVersion);
+			return message;
+		}
+
+		return null;
+	}
 }
 $injector.register("sysInfo", SysInfo);