build-app.xml

<!-- And build script to compile lua scripts into runnable jar files using the "luajc" 
 lua to java bytecode compiler.  
 
 Each source file is converted into a runnable jar file that takes arguments from the command line.  
 For example, the program test/lua/perf/binarytrees.lua is converted to a jar that can be run with
    java -jar binarytrees.jar 15
 -->
<project default="all">
	<import file="build.xml"/>

	<import file="build-libs.xml"/>

	<available file="luaj-jse-${version}.jar" property="luaj.lib.exists"/>

	<!-- this may need to be changed when building on mac -->
	<property name="rt.jar" value="${java.home}/lib/rt.jar"/>
	
	<target name="luaj-lib" unless="luaj.lib.exists">
		<antcall target="jar-jse"/>
	</target>

	<macrodef name="perftest">
		<attribute name="cmd"/>
		<sequential>
			<echo level="info">------ @{cmd}</echo>
			<exec executable="bash">
				<arg value="-c"/>
				<arg value="time @{cmd}"/>
			</exec>
		</sequential>
	</macrodef>

	<macrodef name="buildappjar">
		<attribute name="luaprog"/>
		<attribute name="arg" default=""/>
		<attribute name="srcdir" default="test/lua/perf"/>
		<sequential>
			<echo level="info">=========== @{srcdir}/@{luaprog} =============</echo>
			<delete dir="build/@{luaprog}"/>
			<mkdir dir="build/@{luaprog}/class"/>
			<java classname="luajc">
		        <classpath>
		           <pathelement path="luaj-jse-${version}.jar"/>
		           <pathelement path="lib/bcel-5.2.jar"/>
		        </classpath>
		 		<arg value="-s"/>
				<arg path="@{srcdir}"/>
				<arg value="-d"/>
				<arg path="build/@{luaprog}/class"/>
				<arg value="-m"/>
				<arg value="-v"/>
				<arg value="@{luaprog}.lua"/>
			</java>
			<jar destfile="build/@{luaprog}.jar">
				<fileset dir="build/@{luaprog}/class"/>
				<zipfileset includes="org/luaj/vm2/*.class,org/luaj/vm2/lib/*.class,org/luaj/vm2/lib/jse/*.class,org/luaj/vm2/compiler/*.class" src="luaj-jse-${version}.jar" />
				<manifest>
					<attribute name="Main-Class" value="@{luaprog}" />
				</manifest>
			</jar>
			<unjar src="build/@{luaprog}.jar" dest="build/@{luaprog}/unjarred"/>
			<perftest cmd="java -jar build/@{luaprog}.jar @{arg}"/>

			<!-- The following can be adapted to produce an optimized jar.
			<taskdef resource="proguard/ant/task.properties" classpath="lib/proguard.jar" />
			<proguard>
				-injars      build/@{luaprog}.jar
				-outjars     build/@{luaprog}-opt.jar
				-libraryjars ${rt.jar}
				-overloadaggressively
				-repackageclasses ''
				-allowaccessmodification
				-printmapping build/@{luaprog}.map

				-keep public class @{luaprog} {
				    public static void main(java.lang.String[]);
				}
			</proguard>
			<unjar src="build/@{luaprog}-opt.jar" dest="build/@{luaprog}/unjarred-opt"/>
			<perftest cmd="java -jar build/@{luaprog}-opt.jar @{arg}"/>
			-->
		</sequential>
	</macrodef>

	<target name="binarytrees" depends="luaj-lib,proguard-lib">
		<buildappjar luaprog="binarytrees" arg="15"/>
	</target>

	<target name="fannkuch" depends="luaj-lib,proguard-lib">
		<buildappjar luaprog="fannkuch" arg="10"/>
	</target>

	<target name="nbody" depends="luaj-lib,proguard-lib">
		<buildappjar luaprog="nbody" arg="1000000"/>
	</target>

	<target name="nsieve" depends="luaj-lib,proguard-lib">
		<buildappjar luaprog="nsieve" arg="8"/>
	</target>

	<target name="swingapp" depends="luaj-lib,proguard-lib">
		<buildappjar luaprog="swingapp" srcdir="examples/lua"/>
	</target>

	<target name="allappjars" depends="binarytrees,fannkuch,nbody,nsieve,swingapp"/>

	<target name="all" depends="allappjars"/>
</project>