package org.apache.maven.scm.plugin;

 /*

  * 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.

  */

 import java.io.File;

 import java.io.IOException;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.scm.ScmException;

 import org.apache.maven.scm.ScmFileSet;

 import org.apache.maven.scm.command.export.ExportScmResult;

 import org.apache.maven.scm.repository.ScmRepository;

 import org.codehaus.plexus.util.FileUtils;

 /**

  * Get a fresh exported copy of the latest source from the configured scm url.

  * 

  * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>

  * @version $Id: ExportMojo.java 928132 2010-03-27 03:39:51Z dantran $

  * @goal export

  * @requiresProject false

  */

 public class ExportMojo

     extends AbstractScmMojo

 {

     /**

      * The version type (branch/tag/revision) of scmVersion.

      * 

      * @parameter expression="${scmVersionType}"

      */

     private String scmVersionType;

     /**

      * The version (revision number/branch name/tag name).

      * 

      * @parameter expression="${scmVersion}"

      */

     private String scmVersion;

     /**

      * The directory to export the sources to.

      * 

      * @parameter expression="${exportDirectory}" default-value="${project.build.directory}/export

      * @required

      */

     private File exportDirectory;

     /**

      * Skip export if exportDirectory exists.

      *

      * @parameter expression="${skipExportIfExists}" default-value="false"

      */

     private boolean skipExportIfExists = false;

     /** {@inheritDoc} */

     public void execute()

         throws MojoExecutionException

     {

         super.execute();

         if ( this.skipExportIfExists && this.exportDirectory.isDirectory()  )

         {

             return;

         }

         export();

     }

     protected File getExportDirectory()

     {

         return this.exportDirectory;

     }

     public void setExportDirectory( File exportDirectory )

     {

         this.exportDirectory = exportDirectory;

     }

     protected void export()

         throws MojoExecutionException

     {

         try

         {

             ScmRepository repository = getScmRepository();

             try

             {

                 if ( this.exportDirectory.exists() )

                 {

                     this.getLog().info( "Removing " + this.exportDirectory );

                     FileUtils.deleteDirectory( this.exportDirectory );

                 }

             }

             catch ( IOException e )

             {

                 throw new MojoExecutionException( "Cannot remove " + getExportDirectory() );

             }

             if ( !this.exportDirectory.mkdirs() )

             {

                 throw new MojoExecutionException( "Cannot create " + this.exportDirectory );

             }                

             ExportScmResult result = getScmManager().export( repository,

                                                              new ScmFileSet( this.exportDirectory.getAbsoluteFile() ),

                                                              getScmVersion( scmVersionType, scmVersion ) );

             checkResult( result );

             handleExcludesIncludesAfterCheckoutAndExport( this.exportDirectory );            

         }

         catch ( ScmException e )

         {

             throw new MojoExecutionException( "Cannot run export command : ", e );

         }

     }

 }