maven-assembly-plugin - Maven Assembly Plugin 在子项目上执行

Question

我有以下问题。我有一个多模块项目。我想在顶层 pom 上运行 maven-assembly 插件，它也是其模块的父 pom。我希望插件仅在顶级 pom 上执行。目前它也尝试在所有子模块上执行。我不希望这样，因为我只需要在一个地方(顶级目标目录)从所有模块和子模块中获取所有源。

这是我的描述符:

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
<id>src</id>
<formats>
    <format>zip</format>
</formats>
<moduleSets>
    <moduleSet>
        <includeSubModules>true</includeSubModules>
        <sources>
            <useDefaultExcludes>true</useDefaultExcludes>
            <includeModuleDirectory>false</includeModuleDirectory>
            <fileSets>
                <fileSet>
                    <outputDirectory>/</outputDirectory>
                    <useDefaultExcludes>true</useDefaultExcludes>
                    <includes>
                        <include>src/main/**</include>
                        <include>src/test/**</include>
                        <include>target/classes/**</include>
                    </includes>
                </fileSet>
            </fileSets>
        </sources>
    </moduleSet>
</moduleSets>

pom 文件如下所示:

<?xml version="1.0"?>
<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 http://maven.apache.org/maven-v4_0_0.xsd"
      >

<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>myid</groupId>
    <artifactId>myartid</artifactId>
    <version>1.1</version>
</parent>
<groupId>myid2</groupId>
<artifactId>TopLevelBuild</artifactId>
<packaging>pom</packaging>
<version>5.5-SNAPSHOT</version>
<name>Some Application</name>
<modules>
    <module>1</module>
    <module>2</module>
    <module>3</module>
    <module>4</module>
    <module>5</module>
    <module>6</module>
</modules>
<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit-dep</artifactId>
        <version>4.8.2</version>
        <scope>compile</scope>
    </dependency>
</dependencies>
</project>

父 pom 只包含一些我想在所有模块中继承的依赖项。子模块将当前 pom 作为父模块。
现在，如果我运行:

mvn assembly:single -Ddescriptor=somedes.xml

它在顶层 pom 上运行良好，并收集了我需要的所有资源。但它并没有停止并开始在所有子项目上执行这个目标，当然也没有为它定义描述符。如何仅在顶级 pom 上强制执行？

...
[INFO] Processing sources for module project: LAST MODULE
[INFO] Building zip: ..../target/TopLevelBuild-5.5-SNAPSHOT-src.zip
[INFO] ------------------------------------------------------------------------
[INFO] Building deploy
[INFO]    task-segment: [assembly:single]
[INFO] ------------------------------------------------------------------------
[INFO] [assembly:single {execution: default-cli}]
[INFO] Processing sources for module project: module1-submodule1:jar:5.5-SNAPSHOT
[INFO] Processing sources for module project: module1-submodule1:jar:5.5-SNAPSHOT
[INFO] Building zip: .../module1/target/module1-5.5-SNAPSHOT-src.zip
[INFO] ------------------------------------------------------------------------
[INFO] Building module1
[INFO]    task-segment: [assembly:single]
[INFO] ------------------------------------------------------------------------
[INFO] [assembly:single {execution: default-cli}]
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Failed to create assembly: Error creating assembly archive src: You must set at least one file.

我试图添加:

-Dexecution.inherited=false

但这没有帮助。添加

-Dassembly.ignoreMissingDescriptor=true

也没有帮助。有任何想法吗？

Answer 1

将其放入父 pom.xml 中的 maven-assembly-plugin 的配置中。

<runOnlyAtExecutionRoot>true</runOnlyAtExecutionRoot>