前言

maven"内置插件"中没有打包源代码的插件，所以，需要开发者配置插件。apache提供了maven-source-plugin插件用于打包源代码。

maven-source-plugin

The Source Plugin has five goals:

• source:aggregate aggregrates sources for all modules in an aggregator project.
• source:jar is used to bundle the main sources of the project into a jar archive.
• source:test-jar on the other hand, is used to bundle the test sources of the project into a jar archive.
• source:jar-no-fork is similar to jar but does not fork the build lifecycle.
• source:test-jar-no-fork is similar to test-jar but does not fork the build lifecycle

配置

在《maven实战》一书中，配置使用的是jar-no-fork

<build>
			<plugins>
				<plugin>
					<artifactId>maven-source-plugin</artifactId>
					<version>2.1.2</version>
					<executions>
						<execution>
							<goals>
								<goal>jar-no-fork</goal>
							</goals>
						</execution>
					</executions>
				</plugin>
			</plugins>
	</build>

jar-no-fork与jar的区别

jar，在执行goal之前，执行generate-sources阶段，也就是说，如果，jar绑定的目标在generate-sources之后(比如verify)的话，generate-sources会执行两遍。

• The goal is thread-safe and supports parallel builds.
• Binds by default to the lifecycle phase: package

• Invokes the execution of the lifecycle phase generate-sources

jar-no-fork，没有其余动作，在绑定的phase执行。原文是，

• The goal is thread-safe and supports parallel builds.
• Binds by default to the lifecycle phase: package.

为什么会有jar-no-fork?

临时，我也没找到它存在的理由。

参考

maven-source-plugin doc

difference between maven-source-plugin-jar-and-jar-no-fork-goal