build.xml

<project name="Buildcraft" basedir="../" default="main">
	<property environment="env" />
	<!-- Properties -->

	<property name="build.dir"           value="build"/>
	<property name="src.dir"             value="BuildCraft"/>
	<property name="lang.dir"            value="BuildCraft-Localization"/>

	<property name="download.dir"        value="download"/>
	<property name="files.minecraft.dir" value="jars"/>

	<property name="classes.dir"         value="${build.dir}/classes"/>
	<property name="jar.dir"             value="${build.dir}/dist"/>

	<property name="mcp.dir"             value="${build.dir}/mcp"/>
	<property name="forge.dir"           value="${mcp.dir}/forge"/>

	<property name="mcpsrc.dir"          value="${mcp.dir}/src/minecraft"/>

	<property name="mcp.version"         value="723"/>
	<property name="forge.version"       value="1.4.5-6.4.1.408"/>
	<property name="bc.version"          value="3.1.8"/>

	<available property="forge-exists" file="${download.dir}/minecraftforge-src-${forge.version}.zip"/>
	<condition property="should-download-ant-contrib">
		<or>
			<available file="${download.dir}/ant-contrib/ant-contrib-1.0b3.jar"/>
			<available file="${download.dir}/minecraftforge-src-${forge.version}.zip"/>
		</or>
	</condition>

	

	<mkdir dir="${download.dir}"/>

	<!-- Targets -->

	<target name="clean">
		<delete dir="${build.dir}"/>
	</target>

	<!-- Set build number -->
	<target name="initialize-version" depends="version-provided,version-not-provided">
		<property name="bc.version.full"     value="${bc.version}.${build.number}"/>
		<echo message="Starting build for ${bc.version.full}"/>
	</target>

	<target name="version-not-provided" unless="env.BUILD_NUMBER">
		<buildnumber/>
	</target>

	<target name="version-provided" if="env.BUILD_NUMBER">
		<property name="build.number" value="${env.BUILD_NUMBER}"/>
	</target>

	<!-- Download necessary files -->
	<target name="download-files" depends="download-mcp,download-forge"/>

	<!-- Download ant-contrib, necessary to be able to download forge (only if neither forge zip nor ant-contrib exist) -->
	<target name="download-ant-contrib" unless="should-download-ant-contrib">

		<echo message="Getting: ant-contrib"/>
		<mkdir dir="${download.dir}/tmp"/>

		<get src="http://sourceforge.net/projects/ant-contrib/files/ant-contrib/1.0b3/ant-contrib-1.0b3-bin.zip/download" dest="${download.dir}/tmp/ant-contrib-1.0b3-bin.zip"/>
		<get src="http://archive.apache.org/dist/commons/codec/binaries/commons-codec-1.6-bin.zip" dest="${download.dir}/tmp/commons-codec-1.6-bin.zip"/>

		<unzip src="${download.dir}/tmp/ant-contrib-1.0b3-bin.zip" dest="${download.dir}"/>
		<unzip src="${download.dir}/tmp/commons-codec-1.6-bin.zip" dest="${download.dir}/tmp"/>

		<move todir="${download.dir}/ant-contrib/lib">
			<fileset file="${download.dir}/tmp/commons-codec-1.6/commons-codec-1.6.jar"/>
		</move>

		<!-- Delete useless files -->
		<delete dir="${download.dir}/ant-contrib/docs"/>
		<delete dir="${download.dir}/tmp"/>

	</target>

	<!-- Download mcp -->
	<target name="download-mcp">

		<get src="http://mcp.ocean-labs.de/files/mcp${mcp.version}.zip" dest="${download.dir}" usetimestamp="True"/>

	</target>

	<!-- Download forge (if it doesn't exist) -->
	<target name="download-forge" depends="download-ant-contrib" unless="forge-exists" >

		<taskdef resource="net/sf/antcontrib/antlib.xml">
			<classpath>
				<pathelement location="${download.dir}/ant-contrib/ant-contrib-1.0b3.jar"/>
				<fileset dir="${download.dir}/ant-contrib/lib">
					<include name="*.jar"/>
				</fileset>
			</classpath>
		</taskdef>

		<getMethod url="http://files.minecraftforge.net/minecraftforge-src-${forge.version}.zip"
				   responseDataFile="${download.dir}/minecraftforge-src-${forge.version}.zip">
			<header name="User-Agent" value="Ant-${ant.version}/${ant.java.version}"/>
		</getMethod>

	</target>

	<!-- Setup mcp and forge -->
	<target name="setup" depends="initialize-version">
	
		<!-- Unzip them -->
		<unzip dest="${mcp.dir}">
			<fileset dir="${download.dir}">
				<include name="mcp${mcp.version}.zip"/>
			</fileset>
		</unzip>

		<unzip dest="${mcp.dir}">
			<fileset dir="${download.dir}">
				<include name="minecraftforge-src-${forge.version}.zip"/>
			</fileset>
		</unzip>

		<!-- Copy the necessary jars -->
		<copy todir="${mcp.dir}/jars">
			<fileset dir="${files.minecraft.dir}"/>
		</copy>

		<!-- Change executables' permitions -->
		<chmod file="${mcp.dir}/updatemd5.sh" perm="+x"/>
		<chmod file="${mcp.dir}/recompile.sh" perm="+x"/>
		<chmod file="${mcp.dir}/reobfuscate.sh" perm="+x"/>
		<chmod file="${forge.dir}/install.sh" perm="+x"/>

		<!-- if your building on OSX these 2 should be executable -->
		<chmod file="${mcp.dir}/runtime/bin/astyle-osx" perm="+x" />
		<chmod file="${mcp.dir}/runtime/bin/jad-osx" perm="+x" />

		<!-- Install forge -->
		<exec dir="${forge.dir}" executable="cmd" osfamily="windows">
			<arg line="/c install.cmd"/>
		</exec>

		<exec dir="${forge.dir}" executable="sh" osfamily="unix">
			<arg value="install.sh" />
		</exec>

		<!-- Copy BC source -->
		<copy todir="${mcpsrc.dir}">
			<fileset dir="${src.dir}/common">
				<exclude name="**/buildcraft/devel"/>
			</fileset>
			<filterset>
				<filter token="VERSION" value="${bc.version}" />
				<filter token="BUILD_NUMBER" value="${build.number}" />
			</filterset>
		</copy>

	</target>

	<target name="compile" depends="setup">

		<!-- Recompile -->
		<exec dir="${mcp.dir}" executable="cmd" osfamily="windows" failonerror="true">
			<arg line="/c recompile.bat"/>
		</exec>

		<exec dir="${mcp.dir}" executable="sh" osfamily="unix" failonerror="true">
			<arg value="recompile.sh" />
		</exec>

		<!-- Reobf -->
		<exec dir="${mcp.dir}" executable="cmd" osfamily="windows">
			<arg line="/c reobfuscate.bat"/>
		</exec>

		<exec dir="${mcp.dir}" executable="sh" osfamily="unix">
			<arg value="reobfuscate.sh" />
		</exec>

		<!-- Copy BC classes -->
		<copy todir="${classes.dir}">
			<fileset dir="${mcp.dir}/reobf/minecraft"/>
		</copy>

		<!-- Copy resources -->
		<copy todir="${classes.dir}">
			<fileset dir="${src.dir}/buildcraft_resources">
				<exclude name="build.xml"/>
				<exclude name="build.number"/>
			</fileset>
		</copy>

		<!-- Copy localizations -->
		<copy todir="${classes.dir}" failonerror="false">
			<fileset dir="${lang.dir}">
				<exclude name="README.md"/>
			</fileset>
		</copy>

	</target>

	<!-- Zip the compiled files -->
	<target name="package" depends="compile">

		<jar destfile="${jar.dir}/buildcraft-A-${bc.version.full}.jar" basedir="${classes.dir}"/>

	</target>

	<!-- Default target to run -->
	<target name="main" depends="initialize-version,download-files,clean,package"/>

</project>