/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  *   http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 package org.apache.maven.archetype.mojos;

 import org.apache.maven.archetype.catalog.ArchetypeCatalog;

 import org.apache.maven.archetype.repositorycrawler.RepositoryCrawler;

 import org.apache.maven.plugin.AbstractMojo;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

 import java.io.File;

 /**

  * Crawl a Maven 2 repository (Filesystem, not HTTP)

  * and creates a catalog file.

  * 

  * @author           rafale

  * @requiresProject  false

  * @goal             crawl

  */

 public class CrawlRepositoryMojo

 extends AbstractMojo

 {

     /**

      * The archetype's catalog to update.

      *

      * @parameter  expression="${catalog}"

      */

     private File catalogFile;

     /**

      * @component

      */

     private RepositoryCrawler crawler;

     /**

      * The repository to crawl.

      *

      * @parameter  expression="${repository}" default-value="${settings.localRepository}"

      */

     private File repository;

     public void execute ()

     throws MojoExecutionException, MojoFailureException

     {

         System.err.println ( "repository " + repository );

         System.err.println ( "catalogFile " + catalogFile );

         if ( repository == null )

         {

             throw new MojoFailureException (

                 "The repository is not defined. Use -Drepository=/path/to/repository"

             );

         }

         ArchetypeCatalog catalog = crawler.crawl ( repository );

         if ( catalogFile == null )

         {

             catalogFile = new File ( repository, "archetype-catalog.xml" );

         }

         crawler.writeCatalog ( catalog, catalogFile );

     }

 }