package org.apache.maven.scm.plugin;

 import java.io.File;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.scm.ScmException;

 import org.apache.maven.scm.ScmFileSet;

 import org.apache.maven.scm.command.status.StatusScmResult;

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

 /*

  * 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.

  */

 /**

  * This mojo will fail the build if there is any local modifications

  * @goal check-local-modification

  * @author <a href="mailto:olamy@apache.org">olamy</a>

  * @since 1.2

  */

 public class CheckLocalModificationsMojo

     extends AbstractScmMojo

 {

     /**

      * Custom error message

      *

      * @parameter expression="${scm.checkLocalModification.errorMessage}" 

      *            default-value="The build will stop as there is local modifications";

      */

     private String errorMessage; 

     /**

      * Custom error message

      *

      * @parameter expression="${scm.checkLocalModification.skip}" default-value="false";

      */    

     private boolean skip;

     /**

      * current directory

      *

      * @parameter default-value="${basedir}";

      * @readonly

      */     

     private File baseDirectory;

     public void execute()

         throws MojoExecutionException

     {

         if ( skip )

         {

             getLog().info( "check-local-modification execution has been skipped" );

             return;

         }

         super.execute();

         StatusScmResult result = null;

         try

         {

             ScmRepository repository = getScmRepository();

             result = getScmManager().status( repository, new ScmFileSet( baseDirectory ) );

         }

         catch ( ScmException e )

         {

             throw new MojoExecutionException( e.getMessage(), e );

         }

         if ( !result.isSuccess() )

         {

             throw new MojoExecutionException( "Unable to check for local modifications :" + result.getProviderMessage() );

         }

         if ( !result.getChangedFiles().isEmpty() )

         {

             getLog().error( errorMessage );

             throw new MojoExecutionException( errorMessage );

         }

     }

 }