build.xml

<?xml version="1.0" encoding="UTF-8"?>
<project name="Freenet dependencies" default="all" basedir=".">

	<!-- =================================================================== -->
	<!-- Global properties                                                   -->
	<!-- =================================================================== -->

	<!-- user overrides (properties are immutable, so set overrides first) -->
	<property file="override.properties" />
	<property file="build.properties" />
	<property file="source.properties" />
	<condition property="java.class.dirs" value="${java.class.dirs.user}" else="${java.home}/lib">
		<available file="${java.class.dirs.user}" type="dir"/>
	</condition>

	<property name="pkg.base" value=".."/>
	<property name="pkg.contrib" value="freenet-ext"/>
	<property name="main.make" value="build"/>
        <property name="main.src" value="src/main/java"/>
	<property name="main.dst" value="dist"/>

	<property name="tmp" value="tmp"/>
	<property name="lib" value="lib"/>

	<property name="version.src" value="freenet/node/ExtVersion.java" />
	<property name="version.make" value="freenet/node/ExtVersion.class" />

	<!-- set version string based on git-describe -->
	<exec executable="git" failifexecutionfails="false"
		errorProperty="git.errror" outputproperty="git.describe" resultproperty="git.result">
		<arg value="describe" />
		<arg value="--always" />
		<arg value="--abbrev=4" />
	</exec>
	<condition property="git.revision" value="${git.describe}" else="@custom@">
		<and>
			<equals arg1="${git.result}" arg2="0" />
			<isset property="git.describe" />
		</and>
	</condition>

	<!-- =================================================================== -->
	<!-- Miscellaneous                                                       -->
	<!-- =================================================================== -->

	<target name="dist" depends="all" description="clean-build everything"/>

	<target name="all" description="build everything, incl. docs"/>

	<target name="debug">
		<echoproperties/>
	</target>

	<!-- =================================================================== -->
	<!-- Standard build                                                      -->
	<!-- =================================================================== -->

	<target name="build">
		<!-- Create the time stamp -->
		<tstamp/>

		<!-- Create the Version file with patched revision number in ${main.make} -->
		<copy file="${main.src}/${version.src}" tofile="${main.make}/${version.src}" overwrite="true" />
		<delete file="${main.make}/${version.make}" quiet="true" />
		<replace file="${main.make}/${version.src}">
			<replacefilter token="@custom@" value="${git.revision}"/>
		</replace>
		<echo message="Updated build version to ${git.revision} in ${main.make}/${version.src}"/>

		<javac srcdir="${main.make}" destdir="${main.make}" debug="on" optimize="on" source="1.5" target="1.5">
			<compilerarg line="${javac.args}"/>
			<include name="${version.src}"/>
		</javac>
	</target>

</project>