Expo support upgrade

src/common/commandExecutor.ts

@@ -32,6 +32,7 @@ export enum CommandStatus {
 }
 
 export class CommandExecutor {
+
     private static ReactNativeCommand = "react-native";
     private static ReactNativeVersionCommand = "-v";
     private currentWorkingDirectory: string;
@@ -121,7 +122,7 @@ export class CommandExecutor {
      */
     public spawnReactCommand(command: string, args?: string[], options: Options = {}): ISpawnResult {
         const reactCommand = HostPlatform.getNpmCliCommand(CommandExecutor.ReactNativeCommand);
-        return this.spawnChildProcess(reactCommand, this.combineArguments(command, args), options);
+        return this.spawnChildProcess(reactCommand, [command, ...args], options);
     }
 
     /**
@@ -209,8 +210,4 @@ export class CommandExecutor {
     private generateRejectionForCommand(command: string, reason: any): Q.Promise<void> {
         return Q.reject<void>(ErrorHelper.getNestedError(reason, InternalErrorCode.CommandFailed, command));
     }
-
-    private combineArguments(firstArgument: string, otherArguments: string[] = []) {
-        return [firstArgument].concat(otherArguments);
-    }
 }

src/common/exponent/exponentHelper.d.ts

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for details.
+
+declare class AppJson {
+    public name: string;
+    public displayName?: string;
+    public expo?: ExpConfig;
+}
+
+declare class ExpConfig {
+    public name: string;
+    public slug: string;
+    public sdkVersion: string;
+    public version?: string;
+    public entryPoint?: string;
+    public packagerOpts?: ExpConfigPackager;
+}
+
+declare class ExpConfigPackager {
+    public assetExts?: string[];
+}