build.xml

<?xml version="1.0"?>
<project name="Arduino Updater" default="build">

  <target name="clean" description="Clean the build directories">
    <delete dir="bin" />
  </target>

  <target name="compile" description="Compile sources">
    <mkdir dir="bin" />

    <!-- ant seems to nuke ${java.home} for some reason, pointing at the JRE
	 subfolder instead of the actual JDK found at JAVA_HOME. 
	 To avoid this, we grab the actual JAVA_HOME environment variable 
	 and use that to specify the location of tools.jar. -->

    <!-- if someone is better with ant please help clean this up -->
    <property environment="env" />
    <property name="java_home" value="${env.JAVA_HOME}" />

    <condition property="linux"><os family="unix" /></condition>
    <fail if="linux" unless="java_home"
	  message="The JAVA_HOME variable must be set to the location of a full JDK. For instance, on Ubuntu Linux, this might be /usr/lib/jvm/java-6-sun." />

    <condition property="windows"><os family="windows" /></condition>
    <fail if="windows" unless="java_home"
	  message="The JAVA_HOME variable must be set to the location of a full JDK. For instance, on Windows, this might be c:\jdk1.6.0_18." />

<!--
    <dirname property="blah" file="${java.home}" />
    <echo message="here! ${java.home}/lib/tools.jar or there: ${blah}" />
    <echo message="override ${env.JAVA_HOME}/lib/tools.jar" />
    <fail />
-->
    <javac source="1.6" target="1.6"
	   srcdir="src"
	   destdir="bin"
	   encoding="UTF-8"
	   includeAntRuntime="false"
	   debug="true"
	   classpath="${env.JAVA_HOME}/lib/tools.jar;" />
    <copy todir="bin" overwrite="true" verbose="true">
      <fileset dir="src" includes="**/*.properties" />
    </copy>
  </target>

  <target name="build" depends="compile" description="Build Updater">
    <jar basedir="bin" destfile="arduinoupdater.jar">
    	<manifest>
        	<attribute name="Main-Class" value="arduinoupdater.UpdaterMain"/>
        </manifest>
    </jar>
    <!-- <classpath path="${classpath}"/> -->
  </target>
</project>