package org.apache.maven.shared.release.phase;

 /*

  * 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 org.apache.maven.project.MavenProject;

 import org.apache.maven.scm.ScmException;

 import org.apache.maven.scm.ScmFileSet;

 import org.apache.maven.scm.command.edit.EditScmResult;

 import org.apache.maven.scm.manager.NoSuchScmProviderException;

 import org.apache.maven.scm.provider.ScmProvider;

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

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

 import org.apache.maven.shared.release.ReleaseExecutionException;

 import org.apache.maven.shared.release.ReleaseFailureException;

 import org.apache.maven.shared.release.ReleaseResult;

 import org.apache.maven.shared.release.config.ReleaseDescriptor;

 import org.apache.maven.shared.release.env.ReleaseEnvironment;

 import org.apache.maven.shared.release.scm.ReleaseScmCommandException;

 import org.apache.maven.shared.release.scm.ReleaseScmRepositoryException;

 import org.apache.maven.shared.release.scm.ScmRepositoryConfigurator;

 import org.apache.maven.shared.release.util.ReleaseUtil;

 import org.codehaus.plexus.util.FileUtils;

 import java.io.File;

 import java.io.IOException;

 import java.util.List;

 /**

  * @author Edwin Punzalan

  * @plexus.component role="org.apache.maven.shared.release.phase.ReleasePhase" role-hint="restore-backup-poms"

  */

 public class RestoreBackupPomsPhase

     extends AbstractBackupPomsPhase

 {

     /**

      * Tool that gets a configured SCM repository from release configuration.

      *

      * @plexus.requirement

      */

     private ScmRepositoryConfigurator scmRepositoryConfigurator;

     public ReleaseResult execute( ReleaseDescriptor releaseDescriptor, ReleaseEnvironment releaseEnvironment,

                                   List<MavenProject> reactorProjects )

         throws ReleaseExecutionException, ReleaseFailureException

     {

         ReleaseResult result = new ReleaseResult();

         for ( MavenProject project : reactorProjects )

         {

             restorePomBackup( releaseDescriptor, releaseEnvironment, project );

         }

         result.setResultCode( ReleaseResult.SUCCESS );

         return result;

     }

     public ReleaseResult simulate( ReleaseDescriptor releaseDescriptor, ReleaseEnvironment releaseEnvironment,

                                    List<MavenProject> reactorProjects )

         throws ReleaseExecutionException, ReleaseFailureException

     {

         return execute( releaseDescriptor, releaseEnvironment, reactorProjects );

     }

     protected void restorePomBackup( ReleaseDescriptor releaseDescriptor, ReleaseEnvironment releaseEnvironment,

                                      MavenProject project )

         throws ReleaseExecutionException, ReleaseFailureException

     {

         File pomBackup = getPomBackup( project );

         if ( !pomBackup.exists() )

         {

             throw new ReleaseExecutionException(

                 "Cannot restore from a missing backup POM: " + pomBackup.getAbsolutePath() );

         }

         try

         {

             ScmRepository scmRepository;

             ScmProvider provider;

             try

             {

                 scmRepository =

                     scmRepositoryConfigurator.getConfiguredRepository( releaseDescriptor,

                                                                        releaseEnvironment.getSettings() );

                 provider = scmRepositoryConfigurator.getRepositoryProvider( scmRepository );

             }

             catch ( ScmRepositoryException e )

             {

                 throw new ReleaseScmRepositoryException( e.getMessage(), e.getValidationMessages() );

             }

             catch ( NoSuchScmProviderException e )

             {

                 throw new ReleaseExecutionException( "Unable to configure SCM repository: " + e.getMessage(), e );

             }

             if ( releaseDescriptor.isScmUseEditMode() || provider.requiresEditMode() )

             {

                 EditScmResult result = provider.edit( scmRepository, new ScmFileSet(

                     new File( releaseDescriptor.getWorkingDirectory() ), project.getFile() ) );

                 if ( !result.isSuccess() )

                 {

                     throw new ReleaseScmCommandException( "Unable to enable editing on the POM", result );

                 }

             }

         }

         catch ( ScmException e )

         {

             throw new ReleaseExecutionException( "An error occurred enabling edit mode: " + e.getMessage(), e );

         }

         try

         {

             FileUtils.copyFile( getPomBackup( project ), ReleaseUtil.getStandardPom( project ) );

         }

         catch ( IOException e )

         {

             throw new ReleaseExecutionException( "Error restoring from backup POM: " + e.getMessage(), e );

         }

     }

 }