maven-dependency-plugin 不能排除测试范围依赖

Question

我正在使用 maven-dependency-plugin:copy-dependencies 将所有依赖项复制到 target/dependency 目录中。我的 pom.xml 是：

          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <executions>
              <execution>
                <id>copy-dependencies</id>
                <phase>package</phase>
                <goals>
                  <goal>copy-dependencies</goal>
                </goals>
              </execution>
            </executions>
          </plugin>

插件版本最新：3.1.2（在父 pom 中定义）。

此定义工作正常，但有一个例外：它将所有测试依赖项复制到 target 目录中，我只需要运行目标 jar 所需的运行时依赖项。

我尝试使用 <excludeScope> 配置排除它，如 the documentation:

中所述

<configuration>
    <excludeScope>test</excludeScope>
</configuration>

但它使构建失败并显示消息：

[INFO] --- maven-dependency-plugin:2.10:copy-dependencies (copy-dependencies) @ app ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  7.006 s
[INFO] Finished at: 2021-02-15T10:32:26+03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.10:copy-dependencies (copy-dependencies) on project app:  Can't exclude Test scope, this will exclude everything. -> [Help 1]

我真的不明白为什么排除测试范围会排除所有内容，因为在不排除 test 范围的情况下，目标目录也包含所有运行时依赖项（以及测试依赖项）。

排除测试依赖项可能有什么问题？如何正确操作？

PS：请不要建议我在这里使用程序集或其他 fat-jar 插件，因为我是为了 Docker 图像构建优化而故意复制依赖项 jar：一层用于依赖项，另一层用于 jar，其中依赖项层始终被缓存，直到任何依赖项更改：

COPY target/dependency  /usr/lib/app/lib
COPY target/${JAR_FILE} /usr/lib/app/target.jar

Answer 1

解决方法大概在includeScope描述中：

Scope to include. An Empty string indicates all scopes (default). The scopes being interpreted are the scopes as Maven sees them, not as specified in the pom. In summary:

runtime scope gives runtime and compile dependencies,

compile scope gives compile, provided, and system dependencies,

test (default) scope gives all dependencies,

provided scope just gives provided dependencies,

system scope just gives system dependencies.

这意味着我会尝试 <includeScope>runtime</includeScope>。

Answer 2

排除在测试范围内的依赖项是使用 includeScope 运行时而不是 excludeScope 作为测试手段的插件文档 'everything'

maven-dependency-plugin 不能排除测试范围依赖

maven-dependency-plugin can't exclude test-scope dependencies

java

maven

maven-dependency-plugin