目标覆盖Ant [英] Target overriding in Ant

问题描述

是否有可能从字面上覆盖目标或以某种方式模仿这个？

Is there a possibility to literally override a target or emulate this somehow?

所以，当我打电话

<target perform-after="release">
     <do-something />
</target>

它的行为如下：

<target name="release">
     <antcall target="release" /> <!-- call previous version, not recursion -->
     <do-something /> 
</target>

我认为它有意义，我将在Android例子中描述：

I think it has a meaning, I'll describe on Android example:

我们在SDK文件夹中的每个 build.xml 都有一个 .xml 模板（ {$ SDK} / tools / ant / * .xml ），这些文件包含在每个生成的 build.xml 中为每个项目。只有 -pre-compile ， -pre-build 和 -post-compile 空目标并且易于覆盖的目标。但是，例如，没有空的 -post-release 目标。 Google建议在生成的 build.xml 注释中将目标复制粘贴到我自己的 build.xml ，然后调整它。但我认为这不好，因为如果Google会在模板中更改此目标中的内容，我将永远不会知道我使用的是过期版本。

We have an .xml templates for every build.xml in SDK folder ({$SDK}/tools/ant/*.xml), these files are included in every generated build.xml for each project. There are only -pre-compile, -pre-build and -post-compile targets that empty and easy to override. But there is no empty -post-release target, for example. Google recommends in generated build.xml comments just to copy-paste a target to my own build.xml and then tune it. But I think it is not ok, because if Google will change something in this target inside a template, I will never know about I am using outdated version.

推荐答案

请参阅导入的目标覆盖部分任务或包含任务的目标重写部分。简而言之，给公共build.xml一个项目名称，如common，然后在antcall中使用common.release。

See the "Target overriding" section of the import task or the "Target rewriting" section of the include task. In short, give the common build.xml a project name like "common", and then use "common.release" in the antcall.

我会注意到antcall因为它在运行时启动一个新项目并不完全相同，这意味着目标设置的变量以后将不可见。我没有在这台机器上测试Ant，但是你可以尝试这样的东西来避免使用antcall：

I'll note that antcall isn't quite the same since it starts a new project at runtime, which means variables set by the target won't be visible later. I don't have Ant available on this machine to test, but you might try something like this to avoid the antcall:

<target name="release" depends="common.release, -post-release"/>

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