Don't print incorrect message when tns deploy ios --release command is executed

FIxes #1403

Author: Fatme Havaluova

lib/commands/deploy.ts

@@ -5,7 +5,8 @@ export class DeployOnDeviceCommand implements ICommand {
 	constructor(private $platformService: IPlatformService,
 		private $platformCommandParameter: ICommandParameter,
 				private $options: IOptions,
-				private $errors: IErrors) { }
+				private $errors: IErrors,
+				private $mobileHelper: Mobile.IMobileHelper) { }
 
 	execute(args: string[]): IFuture<void> {
 		let config = this.$options.staticBindings ? { runSbGenerator: true } : undefined;
@@ -14,11 +15,19 @@ export class DeployOnDeviceCommand implements ICommand {
 
 	public canExecute(args: string[]): IFuture<boolean> {
 		return (() => {
-			if (this.$options.release && (!this.$options.keyStorePath || !this.$options.keyStorePassword || !this.$options.keyStoreAlias || !this.$options.keyStoreAliasPassword)) {
+			if (!args || !args.length || args.length > 1) {
+				return false;
+			}
+
+			if (!this.$platformCommandParameter.validate(args[0]).wait()) {
+				return false;
+			}
+
+			if (this.$mobileHelper.isAndroidPlatform(args[0]) && this.$options.release && (!this.$options.keyStorePath || !this.$options.keyStorePassword || !this.$options.keyStoreAlias || !this.$options.keyStoreAliasPassword)) {
 				this.$errors.fail("When producing a release build, you need to specify all --key-store-* options.");
 			}
-			let res = (args.length === 1) && this.$platformCommandParameter.validate(args[0]).wait();
-			return res;
+
+			return true;
 		}).future<boolean>()();
 	}