Ant脚本：在javac的类路径战争lib中的JAR prevent重复 [英] Ant script: Prevent duplication of JAR in javac-classpath war-lib

问题描述

我有一个ANT脚本，我有很多重复的路径相同的一组JAR文件。
但在classpath中，并在​​战争中的元素这么多双措辞。

I have a ANT script and I have a lot of duplicated path to same set JAR files. But there is so many double wording in the classpath and also in the war element.

<path id="my.classpath">
  <pathelement location="folderA/subFolderA/1.0/A.jar"/>
  <pathelement location="folderC/subFolderB/1.0/B.jar"/>
  <pathelement location="folderF/subFolderZ/2.0/Z.jar"/>
  <pathelement location="compile/subFolderX/1.0/onlyForJavac.jar"/>
</path>
....
<javac ...>
 <classpath refid="my.classpath" />
</javac>
....
<war ...>
 <lib file="folderA/subFolderA/1.0/A.jar"/>
 <lib file="folderC/subFolderB/1.0/B.jar"/>
 <lib file="folderF/subFolderZ/2.0/Z.jar"/>
 <lib file="moreFolderF/subFolderZ/2.0/additionFile.jar"/>
 <lib file="moreFolderF/subFolderZ/2.0/additionRuntimeFile.jar"/>
</war>

我要总结他们到一个列表，它是更容易保持更新。

I want to summary them into ONE list which is easier to keep update.

但我阻止，因为我不知道如何与一个文件集样结构共享的路径样结构。

But I am blocked as I have no idea how to share a path-like-structure with a fileset-like-structure.

推荐答案

由于蚂蚁1.8.0有一个新的资源集合 - <一个href=\"http://ant.apache.org/manual/Types/resources.html#mappedresources\"><$c$c>mappedresources那
来代替战任务使用 LIB 元素。

Since Ant 1.8.0 there is a new resource collection - mappedresources that can be used in place of the war task lib element.

因此​​，任务可能是这样的（pretty多少直接从文档）：

So, the task might look like this (pretty much straight from the docs):

<war ... >
    <mappedresources>
        <restrict>
           <path refid="my.classpath"/>
           <type type="file"/>
        </restrict>
        <chainedmapper>
          <flattenmapper/>
          <globmapper from="*" to="WEB-INF/lib/*"/>
        </chainedmapper>
    </mappedresources>
</war>

中添加了此功能href=\"https://issues.apache.org/bugzilla/show_bug.cgi?id=31947\">解决使
部署到 WEB-INF / lib目录。当任务压扁罐子

的 previous答案：的

虽然不能很容易地转换与香草的Ant文件集的路径，你可以走另外一条路。
所以，其中一个选项是在文件集来定义你的罐子，并从中获得的路径。
事情是这样的可能：

Although you can't easily convert a path to a fileset with vanilla Ant, you can go the other way. So one option would be to define your jars in a fileset, and derive the path from it. Something like this perhaps:

<fileset id="my.fileset" dir="${basedir}">
    <include name="folderA/subFolderA/1.0/A.jar"/>
    <include name="folderC/subFolderB/1.0/B.jar"/>
    <include name="folderF/subFolderZ/2.0/Z.jar"/>
    <include name="moreFolderF/subFolderZ/2.0/additionFile.jar"/>
    <include name="moreFolderF/subFolderZ/2.0/additionRuntimeFile.jar"/>
</fileset>

<path id="my.classpath">
    <fileset refid="my.fileset" />
</path>

<!-- javac stays the same -->

<war ...>
    <lib refid="my.fileset" />
</war>

另一种可能性是使用蚂蚁的contrib pathtofileset 任务。

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