Maven插件开发资料

Maven 核心原理

HelloWorld

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-plugin-plugin:2.9:descriptor (default-descriptor) on project plugin-example1: Error extracting plugin descriptor: 'No mojo definitions were found for plugin: org.freebird:plugin-example1.' -> [Help 1]  

需要加入一个maven-plugin-plugin来生成descriptor。不知道Maven的官方文档中为什么不提。

    <build>  
  <plugins>  
    <plugin>  
      <groupId>org.apache.maven.plugins</groupId>  
      <artifactId>maven-plugin-plugin</artifactId>  
      <version>3.0</version>  
      <executions>  
      </executions>  
      <configuration>  
        <!-- Needed for Java 5 annotation based configuration, for some reason. -->  
        <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>  
      </configuration>  
    </plugin>  
  </plugins>  
</build>

Guide to Developing Java Plugins

You will typically name your plugin -maven-plugin.Calling it maven--plugin (note "Maven" is at the beginning of the plugin name) is strongly discouraged since it's a reserved naming pattern for official Apache Maven plugins maintained by the Apache Maven team with groupId org.apache.maven.plugins. Using this naming pattern is an infringement of the Apache Maven Trademark.

Your First Plugin

http://maven.apache.org/guides/plugin/guide-java-plugin-development.html

When processing the source tree to find mojos, plugin-tools looks for classes with either @Mojo Java 5 annotation or "goal" javadoc annotation. Any class with this annotation are included in the plugin configuration file.


package sample.plugin;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Mojo;

/**
 * Says "Hi" to the user.
 *
 */
@Mojo( name = "sayhi")
public class GreetingMojo extends AbstractMojo
{
    public void execute() throws MojoExecutionException
    {
        getLog().info( "Hello, world." );
    }
}

Aether Aether is a library for working with artifact repositories. Aether deals with the specification of local repository, remote repository, developer workspaces, artifact transports, and artifact resolution.

Maven Compat Maven2 classes maintained as compatibility layer.

Maven Embedder Maven embeddable component, with CLI and logging support.

开发资料

Lifecycles Reference

Using Plugin Tools Java5 Annotations

Guide to Configuring Plug-ins

Introduction to the Build Lifecycle