/*
    * 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 javax.inject.Inject;
  
  import java.io.File;
  
  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.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  
  /**
   * Crawl a Maven repository (filesystem, not HTTP) and creates a catalog file.
   *
   * @author rafale
   */
  @Mojo(name = "crawl", requiresProject = false)
  public class CrawlRepositoryMojo extends AbstractMojo {
      /**
       * The archetype's catalog to update.
       */
      @Parameter(property = "catalog")
      private File catalogFile;
  
      private RepositoryCrawler crawler;
  
      @Inject
      public CrawlRepositoryMojo(RepositoryCrawler crawler) {
          this.crawler = crawler;
      }
  
      /**
       * The repository to crawl.
       */
      @Parameter(property = "repository", defaultValue = "${settings.localRepository}")
      private File repository;
  
      @Override
      public void execute() throws MojoExecutionException {
          getLog().debug("repository " + repository + ", catalogFile " + catalogFile);
  
          if (repository == null) {
              throw new MojoExecutionException("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);
      }
  }