Ant打包java project自动生成manifest文件

用Ant打包java project，自动生成manifest文件。

<?xml version="1.0" encoding="UTF-8"?>

<project name="Alab" default="" basedir="" >
	<property name="project.path" value="../"/>
	<property name="src.home" value="${project.path}/src" />
	<property name="lib.home" value="${project.path}/lib" />
	<property name="build.home" value="${project.path}/bin" />
	<property name="dist.home" value="${project.path}/dist" />
	<property name="config.file" value="${project.path}/config.xml" />	
	
	<property name="jar.name" value="Alab.jar" />
	<property name="mainclass" value="net.vnote.alab.AlabDaemon" />
	<property name="build.date" value="20121106" />			
	<property name="component.name" value="alab" />
	<property name="component.version" value="1.0.0" />
	<property name="component.vendor" value="vnote.net" />
	

	<target name="clean" description="clean">
		<delete dir="${build.home}" includeEmptyDirs="true" />
		<delete dir="${dist.home}" includeEmptyDirs="true" />
	</target>

	<target name="initial" description="initialization">
		<mkdir dir="${build.home}" />
		<mkdir dir="${dist.home}" />
	</target>

	<target name="compile" depends="initial" description="compile">
		<javac srcdir="${src.home}" destdir="${build.home}" debug="on" optimize="on" deprecation="on" extdirs="${lib.home}" />
	</target>

	
	<target name="jar" depends="compile" description="Create jar and MANIFEST.MF">
		<pathconvert property="libs.project" pathsep=" ">
			<mapper>
				<chainedmapper>
					<!-- remove absolute path -->
					<flattenmapper />
					<!-- add lib/ prefix -->
					<globmapper from="*" to="lib/*" />
				</chainedmapper>
			</mapper>
			<path>
				<fileset dir="${lib.home}">
					<include name="**/*.jar" />
				</fileset>
			</path>
		</pathconvert>
		<jar jarfile="${dist.home}/${jar.name}" basedir="${build.home}" excludes="log4j.properties">
			<manifest>
				<attribute name="Main-Class" value="${mainclass}" />
				<section name="common">
					<attribute name="Specification-Title" value="${component.name}" />
					<attribute name="Specification-Version" value="${component.version}" />
					<attribute name="Specification-Vendor" value="${component.vendor}" />
					<attribute name="Implementation-Title" value="${component.name}" />
					<attribute name="Implementation-Version" value="${component.version} ${build.date}" />
					<attribute name="Implementation-Vendor" value="${component.vendor}" />
				</section>
				<attribute name="Class-Path" value="${libs.project}" />
			</manifest>
		</jar>
	</target>

	<target name="distribute" depends="jar" description="Copy jar and resource to the dist.home">
		<copy todir="${dist.home}/lib">
			<fileset dir="${lib.home}" excludes="CVS" />
		</copy>
		<copy todir="${dist.home}">
			<fileset file="${config.file}"/>
		</copy>
	</target>

</project>