build.xml

<project default="usage" basedir="." xmlns:sf="antlib:com.salesforce">

    <taskdef uri="antlib:com.salesforce" classpath="lib/salesforce_ant_36.0/ant-salesforce.jar" />
    <property file="build.properties"/>
    <property environment="env"/>

    <target name="retrieve" description="Retrieves AwsSdk package components.">
        <sf:retrieve
            username="${awssdk.username}"
            password="${awssdk.password}"
            serverurl="${awssdk.serverurl}"
            retrieveTarget="src"
            packageNames="Amazon Web Services SDK"
        />
    </target>

    <target name="deploy" description="Deploys AwsSdk package components.">
        <sf:deploy
            username="${awssdk.username}"
            password="${awssdk.password}"
            serverurl="${awssdk.serverurl}"
            deployRoot="src"
        />
    </target>

    <target name="usage">
        <java classname="org.apache.tools.ant.Main">
            <arg value="-projecthelp"/>
            <arg value="-quiet"/>
        </java>
    </target>

</project>