如何在ant中编辑jar的路径?

Question

我想替换基于操作系统的现有jar的路径。

像下面这样:
C:/apps/workspace/libs/rpm.jar
Unix:/user-id/projectname/libs/rpm.jar

有没有办法从C:/apps/workspace/libs/rpm.jar中删除C:/apps/workspace/libs ?

编辑我的问题到:

谢谢丽芙，但是我有很多这样的图书馆。现在我正在维护一个名为"build.start"的文本文件。所有库的属性都是这样的
/gwt/X/2.1.0/gwt-servlet.jar
/gwt/X/2.1.0/gwt-user.jar/gwt/X/2.1.0/gwt-dev.jar
/gwt/X/2.1.0/gwt-soyc-vis.jar/log4j/X/1.2.15/log4j-1.2.15.jar/GWT_LOG/X/3.0.3/gwt-log-3.0.3.jar/GWT_MATH/X/2.1/gwt-math-2.1.jar/GWT_MATH/X/2.1/gwt-math-server-2.1.jar/GWT_Commons_Logging/X/0.3/GWT-commons-logging/gwt-commons-logging-0.3.jar
/GWT_Commons_Logging/X/0.3/GWT-commons-logging/gwt-commons-logging-service-0.3.jar

并使用以下target

将它们加载到classptah中

    <loadfile property="jars.list.property" srcfile="mybuild/build.start.properties">
        <filterchain>
            <expandproperties />
            <striplinecomments>
                <comment value="#" />
            </striplinecomments>
            <tokenfilter>
                <ignoreblank />
            </tokenfilter>
            <prefixlines prefix="," />
            <striplinebreaks />
        </filterchain>
    </loadfile>
    <filelist id="build.libs" dir="" files="${jars.list.property}" />
    <pathconvert targetos="unix" property="build_unix.libs" refid="build.libs">
        <map from="C:" to="${unix.xenv}" />
        <map from="" to="${unix.xenv}" />
    </pathconvert>
    <pathconvert targetos="windows" property="build_windows.libs" refid="build.libs">
        <map from="C:" to="${windows.xenv}" />
        <map from="" to="${windows.xenv}" />
    </pathconvert>
    <path id="build.classpath.id">
        <pathelement path="${build_windows.libs}" />
        <pathelement path="${build_unix.libs}" />
    </path>
    <echo message="Build Libraries classpath: ${toString:build.classpath.id}" />
</target>

上面目标build.classpath.id中的

看起来像/gwt/X/2.1.0/gwt-servlet.jar:/gwt/X/2.1.0/gwt-user.jar:/gwt/X/2.1.0/gwt-dev.jar:/gwt/X/2.1.0/gwt-soyc-vis.jar:/log4j/X/1.2.15/log4j-1.2.15.jar:/GWT_LOG/X/3.0.3/gwt-log-3.0.3.jar: GWT_MATH/X/2.1/gwt-math-2.1.jar:/GWT_MATH/X/2.1/gwt-math-server-2.1.jar:/GWT_Commons_Logging/X/0.3/GWT-commons-logging/gwt-commons-logging-0.3.jar:/GWT_Commons_Logging/X/0.3/GWT-commons-logging gwt-commons-logging-service-0.3.jar

当我在unix上工作时，我只能从文件"build.start"中选择jar名称。属性"和更新路径如下

/WebContent/WEB_INF/lib/gwt-servlet.jar:/WebContent/WEB_INF/lib/gwt-user.jar:/WebContent/WEB_INF/lib/gwt-dev.jar:/WebContent/WEB_INF/lib/gwt-soyc-vis.jar:/WebContent/WEB_INF/lib/log4j-1.2.15.jar:/WebContent/WEB_INF/lib/gwt-log-3.0.3.jar:/WebContent/WEB_INF/lib/gwt-math-2.1.jar:/WebContent/WEB_INF/lib/gwt-math-server-2.1.jar:/WebContent/WEB_INF/lib/gwt-commons-logging-0.3.jar:/WebContent/WEB_INF/lib/gwt-commons-logging-service-0.3.jar

Answer 1

始终使用相对路径，这样您就不会依赖于库位于给定位置和底层操作系统。

虽然这没有回答你的确切要求，但从长远来看，这个建议会对你有所帮助。此外，如果可能的话，使用Ivy + Ant(或Maven)来管理依赖关系。

您可以使用ant任务—以下内容摘自文档(http://ant.apache.org/manual/Tasks/condition.html):

)

<condition property="isMacOsButNotMacOsX">
    <and>
      <os family="mac"/>
      <not>
        <os family="unix"/>
      </not>
    </and>
</condition>