build.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  - Copyright 2014 Google Inc. All rights reserved.
  -
  - Licensed under the Apache License, Version 2.0 (the "License"); you may not
  - use this file except in compliance with the License. You may obtain a copy
  - of the License at
  -
  - http://www.apache.org/licenses/LICENSE-2.0
  -
  - Unless required by applicable law or agreed to in writing, software
  - distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  - WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  - License for the specific language governing permissions and limitations
  - under the License.
-->
<project>
  <property file="local.properties" />

  <import file="${sdk.dir}/config/user/ant-macros.xml" />

  <path id="project.classpath">
    <pathelement path="war/WEB-INF/classes" />
    <fileset dir="war/WEB-INF/lib">
      <include name="**/*.jar" />
    </fileset>
    <fileset dir="${sdk.dir}/lib">
      <include name="shared/**/*.jar" />
    </fileset>
  </path>

    <target name="copyjars"
            description="Copies the App Engine JARs to the WAR.">
        <mkdir dir="war/WEB-INF/lib" />
        <copy
                todir="war/WEB-INF/lib"
                flatten="true">
            <fileset dir="${sdk.dir}/lib/user">
                <include name="**/appengine-api-1.0-sdk*.jar" />
            </fileset>
            <fileset dir="${sdk.dir}/lib/opt/user">
                <include name="appengine-api-labs/v1/*.jar" />
                <include name="jsr107/v1/*.jar" />
                <include name="datanucleus/v2/*.jar" />
            </fileset>
        </copy>
    </target>

  <target name="compile" depends="copyjars"
      description="Compiles Java source and copies other source files to the WAR.">
    <mkdir dir="war/WEB-INF/classes" />
    <copy todir="war/WEB-INF/classes">
      <fileset dir="src">
        <exclude name="**/*.java" />
      </fileset>
    </copy>
    <javac
        srcdir="src"
        destdir="war/WEB-INF/classes"
        classpathref="project.classpath"
        debug="on" />
  </target>

    <target name="datanucleusenhance" depends="compile"
            description="Performs enhancement on compiled data classes.">
        <enhance_war war="war">
            <args>
                <arg value="-enhancerVersion"/>
                <arg value="v2"/>
            </args>
        </enhance_war>
    </target>

  <target name="runserver" depends="datanucleusenhance"
      description="Starts the development server.">
    <dev_appserver war="war" />
  </target>

  <target name="update" depends="datanucleusenhance"
      description="Uploads the application to App Engine.">
    <appcfg action="update" war="war" />
  </target>

  <target name="update_indexes" depends="datanucleusenhance"
      description="Uploads just the datastore index configuration to App Engine.">
    <appcfg action="update_indexes" war="war" />
  </target>

  <target name="rollback" depends="datanucleusenhance"
      description="Rolls back an interrupted application update.">
    <appcfg action="rollback" war="war" />
  </target>

  <target name="request_logs"
      description="Downloads log data from App Engine for the application.">
    <appcfg action="request_logs" war="war">
      <options>
        <arg value="--num_days=5"/>
      </options>
      <args>
        <arg value="logs.txt"/>
      </args>
    </appcfg>
  </target>

</project>