build.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<project name="jquery-validation" default="release" basedir=".">
	
	<taskdef resource="net/sf/antcontrib/antcontrib.properties">
		<classpath>
			<pathelement location="build/ant-contrib-0.6.jar"/>
		</classpath>
	</taskdef>
	
	<property file="ant.properties" />

	<loadfile failonerror="no" srcFile="version.txt" property="release.version">
		<filterchain><striplinebreaks/></filterchain>
	</loadfile>
	<property name="release.filename" value="jquery-validation-${release.version}" />

	<property name="dist.dir" value="dist/${release.filename}/" />

	<property description="Google Closure" name="closure-jar" value="build/google-compiler-20110320.jar" />
	
	<target name="release" depends="clean, copy, minify, replace-version, prepend-header, zip" description="Release builder">
	</target>
	
	<target name="replace-version">
		<replaceregexp match="@VERSION" replace="${release.version}" flags="g" byline="true">
		    <fileset dir="${dist.dir}/" includes="*.js"/>
		</replaceregexp>
		<echo message="Replaced all @VERSION to ${release.version}." />
	</target>
	
	<target name="prepend-header">
		<copy todir="${dist.dir}/headers/">
			<fileset dir="${dist.dir}/" includes="*.js" excludes="*.min.js" />
		</copy>
		<replaceregexp match="^(\/\*.*?\*\/\s).+" replace="\1" flags="s">
		    <fileset dir="${dist.dir}/headers/" includes="*.js"/>
		</replaceregexp>
		<for param="file">
			<path><fileset dir="${dist.dir}/" includes="*.min.js" /></path>
			<sequential>
				<propertyregex override="yes" property="target" input="@{file}" regexp=".*[\\/](.+)\.min\.js$" replace="\1"/>
				<concat destfile="${dist.dir}/headered/${target}.min.js">
					<header file="${dist.dir}/headers/${target}.js" />
					<fileset file="@{file}" />
				</concat>
			</sequential>
		</for>
		<copy todir="${dist.dir}" overwrite="true">
			<fileset dir="${dist.dir}/headered/" includes="*.js" />
		</copy>
		
		<delete dir="${dist.dir}/headers/" />
		<delete dir="${dist.dir}/headered/" />
	</target>

	<target description="Zip the package" name="zip">
		<zip destfile="${dist.dir}/../${release.filename}.zip">
			<zipfileset dir="dist/" />
		</zip>
	</target>

	<target name="minify">
		<echo message="Building minified" />
		<apply executable="java" parallel="false">
			<fileset dir="${dist.dir}" includes="*.js" />
			<arg line="-jar" />
			<arg path="${closure-jar}" />
			<arg value="--warning_level" />
			<arg value="QUIET" />
			<arg value="--js_output_file" />
			<targetfile />
			<arg value="--js" />
			<mapper type="glob" from="*.js" to="${dist.dir}/*.min.js" />
		</apply>
	</target>
	
	<target description="Copy needed folders" name="copy">
		<echo message="Copying files" />
		<mkdir dir="${dist.dir}" />
		<copy overwrite="true" todir="${dist.dir}/">
			<fileset dir="." excludes="**/.*, .*/, dist/, build/, build.xml" />
		</copy>
	</target>
	
	 <target name="clean">
	 	<delete dir="${dist.dir}" />
	 	<delete file="${dist.dir}/../${release.filename}.zip" />
    </target>
	
	<target name="whitespace">
		<replaceregexp match="[\t ]+$" replace="" flags="g" byline="true">
		    <fileset dir="${src.dir}" includes="*.js"/>
		    <fileset dir="${src.dir}/i18n/" includes="*.js"/>
		</replaceregexp>
		<echo message="All trailing spaces removed." />
	</target>
	
</project>