如何在 ANT 构建中在多个目标 'depends' 属性中使用一个目标？

Question

我正在使用 ANT build 进行部署过程。为此，我遵循以下几点，

Created five targets in ANT named 'initiate.deploy' (to initiate deployment), 'svn.checkout' (checkout source from SVN into workspace) , 'generate.ear' (EAR generation) and 'deploy.ear' (deploy EAR into Server), 'clean.workspace' (Cleaning workspace dirtory).

The target 'initiate.deploy' is my default target.

I need to clean the workspace directory before 'svn.checkout' target and after 'deploy.ear' target.

I put 'clean.workspace' target in 'depends' property of 'svn.checkout' target and in 'initiate.deploy' target.

我的代码：

    <target name="initiate.deploy" description="Initiate deployment" depends="svn.checkout, generate.ear, deploy.ear, clean.workspace">
        ..........................
    </target>

    <target name="svn.checkout" description="SVN checkout" depends ="clean.workspace">
        ..........................
    </target>

但是目标 'clean.workspace' 只在 'svn.checkout' 之前执行一次，而不是在 'deploy.ear' 目标之后执行。

构建序列创建如下。

Build sequence for target(s) 'initiate.deploy' is [clean.workspace, svn.checkout, check.workSpace, update.property.file, generate.ear, deploy.ear, initiate.deploy]

在 ANT 构建中如何在多个目标中使用一个目标''depends'属性？

Answer 1

如 Ant documentation 中所述：

In a chain of dependencies stretching back from a given target such as D above, each target gets executed only once, even when more than one target depends on it.

我的理解是，这是为了避免依赖关系图中的循环。

因此，您需要修改目标，例如从 initiate.deploy 的依赖项中删除 clean.workspace 并通过 antcall 任务显式调用它：

<target name="initiate.deploy" description="Initiate deployment" depends="svn.checkout, generate.ear, deploy.ear">
    ..........................
    <antcall target="clean.workspace" />
</target>

<target name="svn.checkout" description="SVN checkout" depends ="clean.workspace">
    ..........................
</target>

更新：

如评论中所述，antcall 任务将在新的 Ant 项目中启动调用的目标，这会产生不希望的开销。为避免这种行为，可以将目标包装为 macrodef 并将其作为任何其他目标中的任务调用。然后，您可以更改调用的目标，使其调用新的 macrodef，以使其作为其他任务的依赖项可用：

<target name="initiate.deploy" description="Initiate deployment" depends="svn.checkout, generate.ear, deploy.ear">
    ..........................
    <clean.workspace.macro />
</target>

<target name="svn.checkout" description="SVN checkout" depends ="clean.workspace">
    ..........................
</target>

<target name="clean.workspace">
    <clean.workspace.macro />
</target>

<macrodef name="clean.workspace.macro">
   <sequential>
        <!-- do the workspace cleanup -->
        ..........................
   </sequential>
</macrodef>

如何在 ANT 构建中在多个目标 'depends' 属性 中使用一个目标？

How to use one target in multiple targets' 'depends' property in ANT build?

ant

如何在 ANT 构建中在多个目标 'depends' 属性中使用一个目标？