Dev

EmptyProject/pom.xml

@@ -7,11 +7,34 @@
     <groupId>org.example</groupId>
     <artifactId>EmptyProject</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <developers>
+        <developer>
+            <id>1</id>
+            <name>someName</name>
+            <email>some@Email.com</email>
+        </developer>
+    </developers>
 
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.plugin</groupId>
+                <artifactId>MavenPlugin</artifactId>
+                <version>1.0-SNAPSHOT</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>greet</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
 </project>

MavenPlugin/pom.xml

@@ -7,11 +7,47 @@
     <groupId>org.plugin</groupId>
     <artifactId>MavenPlugin</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <packaging>maven-plugin</packaging>
 
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven-plugin.version>3.15.1</maven-plugin.version>
+        <maven-plugin-api.version>3.9.9</maven-plugin-api.version>
+        <maven-project.version>2.2.1</maven-project.version>
+        <goalPrefix>greet</goalPrefix>
     </properties>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-plugin-api</artifactId>
+            <version>${maven-plugin-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven.plugin-tools</groupId>
+            <artifactId>maven-plugin-annotations</artifactId>
+            <version>${maven-plugin.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-project</artifactId>
+            <version>${maven-project.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-plugin-plugin</artifactId>
+                <version>${maven-plugin.version}</version>
+                <configuration>
+                    <goalPrefix>${goalPrefix}</goalPrefix>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>

MavenPlugin/src/main/java/org/plugin/mojo/GreetingsDevelopersMojo.java

@@ -0,0 +1,43 @@
+package org.plugin.mojo;
+
+import org.apache.maven.model.Contributor;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.plugins.annotations.LifecyclePhase;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.apache.maven.project.MavenProject;
+
+import java.util.List;
+
+@Mojo(name = "greet", defaultPhase = LifecyclePhase.CLEAN)
+public class GreetingsDevelopersMojo extends AbstractMojo {
+    @Parameter(defaultValue = "${project}", readonly = true, required = true)
+    private MavenProject project;
+
+    /**
+     * Можно красиво разбирать объект {@link Contributor}
+     * при желании...
+     */
+    @Override
+    public void execute() throws MojoExecutionException, MojoFailureException {
+        getLog().info("Project ArtifactId: " + project.getArtifactId());
+        getLog().info("Project Version: " + project.getVersion());
+        getLog().info("Project Packaging: " + project.getPackaging());
+
+        getLog().info("Developers:");
+
+        project.getDevelopers().forEach(developer ->
+                getLog().info(developer.toString())
+        );
+        /*
+        List<Contributor> developers = project.getDevelopers();
+        developers.forEach(dev -> getLog().info(
+                dev.getName()
+                + dev.getEmail()
+                + dev.getOrganization()
+        ));
+        */
+    }
+}