Add instrcutions to override <application> and <version> tags.

tswast · tswast · commit 580b669f983d · 2015-12-11T15:57:15.000-08:00
Since many users may want to run with multiple projects/versions (dev,
staging, prod) document how to deploy this sample without having to
modify the application-web.xml file.
diff --git a/appengine/appidentity/README.md b/appengine/appidentity/README.md
@@ -1,12 +1,27 @@
 # App Identity sample for Google App Engine
 This sample demonstrates how to use the App Identity APIs on Google App Engine
 
+## Running locally
+    $ mvn appengine:devserver
+
+## Deploying
+In the following command, replace YOUR-PROJECT-ID with your
+[Google Cloud Project ID](https://developers.google.com/console/help/new/#projectnumber)
+and YOUR-VERSION with a suitable version identifier.
+
+    $ mvn appengine:update -Dappengine.appId=YOUR-PROJECT-ID -Dappengine.version=YOUR-VERSION
+
 ## Setup
+To save your project settings so that you don't need to enter the
+`-Dappengine.appId=YOUR-CLOUD-PROJECT-ID` or
+`-Dappengine.version=YOUR-VERSION-NAME` parameters, you can make the following
+changes:
+
 1. Update the <application> tag in src/main/webapp/WEB-INF/appengine-web.xml with your project name
 1. Update the <version> tag in src/main/webapp/WEB-INF/appengine-web.xml with your version name
 
-## Running locally
-    $ mvn appengine:devserver
+You will now be able to run
 
-## Deploying
     $ mvn appengine:update
+
+without the need for any additional paramters.
diff --git a/appengine/appidentity/pom.xml b/appengine/appidentity/pom.xml
@@ -95,7 +95,7 @@ Copyright 2015 Google Inc. All Rights Reserved.
       <plugin>
         <groupId>com.google.appengine</groupId>
         <artifactId>appengine-maven-plugin</artifactId>
-        <version>1.9.28</version>
+        <version>${appengine.target.version}</version>
       </plugin>
     </plugins>
   </build>
