如何让Maven install时将校验和文件同步到本地仓库？

我使用checksum-maven-plugin生成构件的校验和文件，插件配置如下：

<plugin>
     <groupId>net.nicoulaj.maven.plugins</groupId>
     <artifactId>checksum-maven-plugin</artifactId>
     <version>1.9</version>
     <executions>
         <execution>
             <goals>
                 <goal>artifacts</goal>
             </goals>
         </execution>
     </executions>
 </plugin>

执行mvn install后，target目录中已生成以下文件，但所有*.md5/sha1校验和文件都未被同步到本地Maven仓库：

foo-1.0.0.jar
foo-1.0.0.jar.md5
foo-1.0.0.jar.sha1
foo-1.0.0-javadoc.jar
foo-1.0.0-javadoc.jar.md5
foo-1.0.0-javadoc.jar.sha1
foo-1.0.0-sources.jar
foo-1.0.0-sources.jar.md5
foo-1.0.0-sources.jar.sha1

完整的pom.xml内容如下：

<?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>
    <groupId>com.foo</groupId>
    <artifactId>foo</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>22</maven.compiler.source>
        <maven.compiler.target>22</maven.compiler.target>
        <exec.mainClass>com.foo.foo.Foo</exec.mainClass>
        <javadoc.plugin.version>3.3.1</javadoc.plugin.version>
        <source.plugin.version>3.2.1</source.plugin.version>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-javadoc-plugin</artifactId>
                <version>${javadoc.plugin.version}</version>
                <executions>
                    <execution>
                        <id>attach-javadocs</id>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                        <configuration>
                            <doclint>none</doclint>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-source-plugin</artifactId>
                <version>${source.plugin.version}</version>
                <executions>
                    <execution>
                        <id>attach-sources</id>
                        <goals>
                            <goal>jar-no-fork</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>net.nicoulaj.maven.plugins</groupId>
                <artifactId>checksum-maven-plugin</artifactId>
                <version>1.9</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>artifacts</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

解决方案 #

修改checksum-maven-plugin的配置，添加<attach>true</attach>参数，让生成的校验和文件被标记为Maven构件的附件，这样install阶段会自动将它们同步到本地仓库：

<plugin>
    <groupId>net.nicoulaj.maven.plugins</groupId>
    <artifactId>checksum-maven-plugin</artifactId>
    <version>1.9</version>
    <executions>
        <execution>
            <goals>
                <goal>artifacts</goal>
            </goals>
            <configuration>
                <!-- 开启附件模式，让校验和文件随主构件一起安装 -->
                <attach>true</attach>
                <!-- 可选：指定要生成的校验和算法，默认已包含MD5、SHA-1 -->
                <!--
                <algorithms>
                    <algorithm>MD5</algorithm>
                    <algorithm>SHA-1</algorithm>
                </algorithms>
                -->
            </configuration>
        </execution>
    </executions>
</plugin>

修改后重新执行mvn clean install，校验和文件就会和主jar、javadoc jar、sources jar一同被安装到本地Maven仓库中。

内容的提问来源于stack exchange，提问作者SilverCube