为每个报告插件调用的 Maven "process-classes" 阶段（多次执行）

Question

我有一个 Maven 工件，其中包含在编译时计算的数据

这是通过使用exec-maven-plugin调用生成class实现的。

这在构建工件时被正确执行，但是当添加报告插件时，执行发生多次，显着减慢速度。

采取以下pom.xml：

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.me</groupId>
    <artifactId>test</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <properties>
        <main.class>test.Runner</main.class>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
    </properties>
    <reporting>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-report-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-report-plugin</artifactId>
            </plugin>
        </plugins>
    </reporting>
    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>process-classes</phase>
                        <id>${main.class}</id>
                        <goals>
                            <goal>java</goal>
                        </goals>
                        <configuration>
                            <mainClass>${main.class}</mainClass>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-site-plugin</artifactId>
                    <version>3.9.1</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

当 clean install site 为运行时，test.Runner 被调用三次 - 每次添加报告插件时，都会再次调用运行。

Answer 1

尝试将报告配置更改为：

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-report-plugin</artifactId>
  <version>${maven.surefire.plugin.version}</version>
  <reportSets>
    <reportSet>
      <reports>
        <report>report-only</report>
      </reports>
    </reportSet>
  </reportSets>
</plugin>

这告诉 Maven 哪些报告应该是运行。如果没有 reportSet 配置，

every reporting goal available in the plugin is rendered once

根据 Maven Site plugin docs. This is important because as @khmarbaise notes, the report mojo

Invokes the execution of the lifecycle phase test prior to executing itself.

为每个报告插件调用的 Maven "process-classes" 阶段（多次执行）

Maven "process-classes" phase called for each reporting plugin (multiple executions)

java

maven

exec-maven-plugin