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.ScmFile;

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

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

 import org.codehaus.plexus.util.StringUtils;

 /**

  * Display the modification status of the files in the configured scm url.

  *

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

  * @author Olivier Lamy

  * @version $Id: StatusMojo.java 1054215 2011-01-01 09:45:44Z olamy $

  * @goal status

  * @aggregator

  */

 public class StatusMojo

     extends AbstractScmMojo

 {

     /** {@inheritDoc} */

     public void execute()

         throws MojoExecutionException

     {

         super.execute();

         try

         {

             ScmRepository repository = getScmRepository();

             StatusScmResult result = getScmManager().status( repository, getFileSet() );

             checkResult( result );

             File baseDir = getFileSet().getBasedir();

             // Determine the maximum length of the status column

             int maxLen = 0;

             for ( ScmFile file : result.getChangedFiles() )

             {

                 maxLen = Math.max( maxLen, file.getStatus().toString().length() );

             }

             for ( ScmFile file : result.getChangedFiles() )

             {

                 // right align all of the statuses

                 getLog().info(

                                StringUtils.leftPad( file.getStatus().toString(), maxLen ) + " status for "

                                    + getRelativePath( baseDir, file.getPath() ) );

             }

         }

         catch ( IOException e )

         {

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

         }

         catch ( ScmException e )

         {

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

         }

     }

     /**

      * Formats the filename so that it is a relative directory from the base.

      *

      * @param baseDir

      * @param path

      * @return The relative path

      */

     protected String getRelativePath( File baseDir, String path )

     {

         if ( path.equals( baseDir.getAbsolutePath() ) )

         {

             return ".";

         }

         else if ( path.indexOf( baseDir.getAbsolutePath() ) == 0 )

         {

             // the + 1 gets rid of a leading file separator

             return path.substring( baseDir.getAbsolutePath().length() + 1 );

         }

         else

         {

             return path;

         }

     }

 }