您如何强制在构建结束时仅将一次maven MOJO执行一次? [英] How do you force a maven MOJO to be executed only once at the end of a build?

问题描述

我有一次要执行的MOJO，并且仅在反应堆中最后一个项目的测试阶段要运行之后执行一次.

I have a MOJO I would like executed once, and once only after the test phase of the last project in the reactor to run.

使用:

if (!getProject().isExecutionRoot()) {
        return ;
}

在execute()方法开始时，

表示我的mojo被执行一次，但是在构建的开始-在所有其他子模块之前.

at the start of the execute() method means my mojo gets executed once, however at the very beginning of the build - before all other child modules.

推荐答案

为此找到的最佳解决方案是:

The best solution I have found for this is:

/**
 * The projects in the reactor.
 *
 * @parameter expression="${reactorProjects}"
 * @readonly
 */
private List reactorProjects;

public void execute() throws MojoExecutionException {

    // only execute this mojo once, on the very last project in the reactor
    final int size = reactorProjects.size();
    MavenProject lastProject = (MavenProject) reactorProjects.get(size - 1);
    if (lastProject != getProject()) {
        return;
    }
   // do work
   ...
}

这似乎适用于我测试过的小型构建层次结构.

This appears to work on the small build hierarchies I've tested with.

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