用 ant 创建一个bundle jar [英] Creating a bundle jar with ant

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问题描述

我正在使用 Ant 构建一些 Java 项目.
在某些情况下,我有一个 lib/ 目录,其中包含 JAR 文件形式的外部依赖项.

I'm using Ant to build some Java projects.
In some, I've got a lib/ directory, which contains external dependencies, in the form on JAR files.

在构建过程中,我通过为 lib 中的每个 jar 添加一个 zipfileset 到捆绑 jar 文件中,创建了一个捆绑的 jar,其中包含项目的代码和依赖项// 目录.

During the build, I create a bundled jar, that contains the project's code, alongside the dependencies, by adding to the bundle jar file a zipfileset for each of the jars in the lib/ directory.

问题是,每次添加 jar 或更改名称时,我都需要记住更新 build.xml 文件,因为我找不到添加那些 zipfilesets 以自动方式包含所有 jars 的特定模式(例如 lib/*.jar).

The problem is, that every time I add a jar, or change names, I need to remember to update the build.xml file, as I couldn't find a way for adding those zipfilesets in an automatic manner that will include all jars in a certain pattern (e.g. lib/*.jar).

有没有更好的方法来做到这一点?

Is there a better way for doing this?

我已经考虑为此编写自己的 Ant 任务,或者使用 Groovy 的 ant API 以编程方式执行此操作,但想知道是否有使用vanilla"ant 执行此操作的方法.

I've considered writing my own Ant Task for this, or using Groovy's ant API to do this programmatically, but was wondering if there's a way for doing this using "vanilla" ant.

推荐答案

在我的目标中,我有这样的事情:

In my target, I have something like this:

<jar destfile="${store.dir}/temp_final.jar" filesetmanifest="skip">
    <zipgroupfileset dir="dist" includes="*.jar"/>
    <zipgroupfileset dir="dist/lib" includes="*.jar" excludes=""/>

    <manifest>
        <attribute name="Main-Class" value="${main.class}"/>
        <attribute name="Class-Path" value="${mf.classpath}"/>
    </manifest>
</jar>

这是我构建类路径的方法:

And here is how I build my classpath:

<path id="build.classpath">
    <fileset dir="${basedir}/">
        <include name="${lib.dir}/*.jar"/>
    </fileset>
</path>

<pathconvert property="mf.classpath" pathsep=" ">
    <path refid="build.classpath"/>
    <mapper>
        <chainedmapper>
            <flattenmapper/>
            <globmapper from="*.jar" to="lib/*.jar"/>
        </chainedmapper>
    </mapper>
</pathconvert>

mf.classpath 用于上面发布的包目标.这部分是从别处抄来的,不是很熟悉.

mf.classpath is used from the package target posted above. This part I copied from somewhere else, so I'm not all that familiar with it.

快速编辑.Javac 也需要了解这些 jar.

Quick edit. Javac needs to know about those jars too.

<path id="jars">
    <fileset dir="${lib.dir}" includes="**/*.jar"/>
</path>

<target name="compile">
    <mkdir dir="${build.dir}"/>
    <javac srcdir="${src.dir}" destdir="${build.dir}" classpathref="jars" debug="on"/>
</target>

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