Maven程序集:包文档和源jars

Question

我有一个多模块的maven项目。每个库模块生成自己的jar输出：

Parent (Pom)
   |
   Library_01 (jar)
   |   output:
   |     |
   |     lib1.jar
   |     |
   |     lib1-docs.jar
   |     |
   |     lib1-sources.jar
   |
   Library_02 (jar)
   |   output:
   |     |
   |     lib2.jar
   |     |
   |     lib2-docs.jar
   |     |
   |     lib2-sources.jar
   |
   Distribution (pom) // uses assembly plug-in to assemble outputs of other modules here
       output:
         |
         lib1.jar
         |
         lib2.jar

我正在分发模块中组装其他模块的二进制文件，正如maven-assembly-plugin的这里的文件所解释的那样，我的POM看起来与教程中的一模一样。

它的工作方式显示在文档中。在封装阶段，组装插件在分发模块中收集另外两个模块的jars。但正如您所看到的，其他库模块也被配置为生成文档和源jars。

1. 如何配置组装插件来收集其他模块的文档和源jars？
2. 考虑到分发，上述设置似乎不合适。我还是会为不同的图书馆准备一堆罐子。可以将所有其他模块的类、源和文档合并到单个jar文件中吗？基本上，我希望分发3个全局jars (二进制、文档和源代码)。如何才能做到这一点？

比如：

   |
   Distribution (pom)
         |
         Global.jar (contains classes of Lib1 + Lib2)
         |
         Global-docs.jar (contains docs of Lib1 + Lib2)
         |
         Global-sources.jar (contains sources of Lib1 + Lib2)

Answer 1

好的，我已经经历了以下几种选择：

1. maven-程序集-插件：构建组合二进制文件，可能也是源，但不是javadocs。而且非常复杂。
2. maven-阴影插件：构建组合的二进制文件和源代码非常容易，但没有javadocs。此外，源文件名很难控制。

因此，我采取的简单方法如下：

确保所有模块都生成源jar。这可以通过在父pom中启用源插件来实现，所有模块都继承它：

<build>
    <plugins>
        <plugin>
            <inherited>true</inherited>
            <artifactId>maven-source-plugin</artifactId>
            <executions>
                <execution>
                    <id>attach-sources</id>
                    <goals>
                        <goal>jar</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

创建一个特殊的“构建”模块来组合所有其他模块的源代码。这是通过使用maven-dependency-plugin的unpack-dependencies目标和源分类器来实现的，这意味着将所有其他模块的源作为该模块的源。

构建模块的pom：

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <artifactId>parent</artifactId>
        <groupId>com.example.product</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>build</artifactId>
    <packaging>jar</packaging>
    <name>Build</name>

    <properties>
        <!--add comma separated artifact names from dependencies, to be included in unpacking-->
        <project.build.unpack_includes>sub-product</project.build.unpack_includes>
    </properties>

    <dependencies>
        <dependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>sub-product</artifactId>
            <version>${project.version}</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>${parent.artifactId}</finalName>
        <plugins>
            <plugin>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <id>unpack-sources</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>unpack-dependencies</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <classifier>sources</classifier>
                    <type>jar</type>
                    <outputDirectory>${project.build.sourceDirectory}</outputDirectory>
                    <includeArtifactIds>${project.build.unpack_includes}</includeArtifactIds>
                    <includes>**\/*.java</includes>
                    <overWriteSnapshots>true</overWriteSnapshots>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-javadoc-plugin</artifactId>
                <executions>
                    <execution>
                        <id>attach-javadocs</id>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

现在，构建模块像任何其他项目一样编译，生成所有所需的jars。

Answer 2

嗯，我不是专家，但我在一个多模块项目中也做了类似的事情。这是父母的pom部分，其中指定插件和文档：

<pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-source-plugin</artifactId>
                <inherited>true</inherited>
                <executions>
                    <execution>
                        <id>attach-sources</id>
                        <phase>verify</phase>
                        <goals>
                            <goal>jar</goal>
                            <goal>test-jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <inherited>true</inherited>
                <configuration>
                    <properties>
                        <property>
                            <name>outputDirectory</name>
                            <value>${project.build.outputDirectory}</value>
                        </property>
                    </properties>
                    <systemProperties>
                        <property>
                            <name>user.language</name>
                            <value>ca</value>
                        </property>
                        <property>
                            <name>user.country</name>
                            <value>ES</value>
                        </property>
                    </systemProperties>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-site-plugin</artifactId>
                <version>3.0</version>
                <inherited>false</inherited>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <inherited>true</inherited>
                <configuration>
                    <executable>javac</executable>
                    <source>1.6</source>
                    <target>1.6</target>
                    <encoding>ISO-8859-15</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-javadoc-plugin</artifactId>
                <version>2.8</version>
                <inherited>true</inherited>
                <configuration>
                    <detectLinks>true</detectLinks>
                </configuration>
                <executions>
                    <execution>
                        <id>aggregate</id>
                        <goals>
                            <goal>aggregate</goal>
                        </goals>
                        <phase>site</phase>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <inherited>true</inherited>
                <configuration>
                    <encoding>ISO-8859-15</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-ejb-plugin</artifactId>
                <version>2.2.1</version>
                <inherited>true</inherited>
                <configuration>
                    <ejbVersion>3.0</ejbVersion>
                    <archive>
                        <addMavenDescriptor>false</addMavenDescriptor>
                        <manifest>
                            <addClasspath>true</addClasspath>
                            <useUniqueVersions>false</useUniqueVersions>
                        </manifest>
                    </archive>
                    <generateClient>false</generateClient>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <inherited>true</inherited>
                <configuration>
                    <archive>
                        <addMavenDescriptor>false</addMavenDescriptor>
                    </archive>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>test-jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </pluginManagement>
    <extensions>
        <extension>
            <groupId>org.apache.maven.wagon</groupId>
            <artifactId>wagon-ssh</artifactId>
            <version>2.0</version>
        </extension>
    </extensions>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-javadoc-plugin</artifactId>
            <!-- <configuration> <links> <link>http://download.oracle.com/javase/6/docs/api/</link> 
                <link>http://download.oracle.com/javaee/1.4/api/</link> <link>http://static.springsource.org/spring/docs/2.5.x/api/</link> 
                <link>http://docs.jboss.org/hibernate/core/3.2/api/</link> <link>http://www.easymock.org/api/easymock/2.5.2/</link> 
                <link>http://testng.org/javadocs/</link> <link>http://www.bouncycastle.org/docs/docs1.6/</link> 
                <link>http://www.bouncycastle.org/docs/mdocs1.6/</link> <link>http://www.bouncycastle.org/docs/pgdocs1.6/</link> 
                <link>http://www.bouncycastle.org/docs/tspdocs1.6/</link> </links> </configuration> -->
            <executions>
                <execution>
                    <id>agregar</id>
                    <goals>
                        <goal>aggregate</goal>
                    </goals>
                    <phase>pre-site</phase>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>
<reporting>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-project-info-reports-plugin</artifactId>
            <version>2.1.1</version>
        </plugin>
    </plugins>
</reporting>