package org.apache.maven.scm.provider.hg.command.checkout;

 /*

  * 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.scm.ScmException;

 import org.apache.maven.scm.ScmFileSet;

 import org.apache.maven.scm.ScmResult;

 import org.apache.maven.scm.ScmVersion;

 import org.apache.maven.scm.command.Command;

 import org.apache.maven.scm.command.checkout.AbstractCheckOutCommand;

 import org.apache.maven.scm.command.checkout.CheckOutScmResult;

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

 import org.apache.maven.scm.provider.hg.HgUtils;

 import org.apache.maven.scm.provider.hg.command.HgCommandConstants;

 import org.apache.maven.scm.provider.hg.command.HgConsumer;

 import org.apache.maven.scm.provider.hg.repository.HgScmProviderRepository;

 import org.codehaus.plexus.util.FileUtils;

 import org.codehaus.plexus.util.StringUtils;

 import java.io.File;

 import java.io.IOException;

 import java.util.ArrayList;

 import java.util.List;

 /**

  * @author <a href="mailto:thurner.rupert@ymono.net">thurner rupert</a>

  * @author Olivier Lamy

  * @version $Id: HgCheckOutCommand.java 1207290 2011-11-28 15:20:44Z olamy $

  */

 public class HgCheckOutCommand

     extends AbstractCheckOutCommand

     implements Command

 {

     /**

      * {@inheritDoc}

      */

     protected CheckOutScmResult executeCheckOutCommand( ScmProviderRepository repo, ScmFileSet fileSet,

                                                         ScmVersion scmVersion, boolean recursive )

         throws ScmException

     {

         HgScmProviderRepository repository = (HgScmProviderRepository) repo;

         String url = repository.getURI();

         File checkoutDir = fileSet.getBasedir();

         try

         {

             if ( getLogger().isInfoEnabled() )

             {

                 getLogger().info( "Removing " + checkoutDir );

             }

             FileUtils.deleteDirectory( checkoutDir );

         }

         catch ( IOException e )

         {

             throw new ScmException( "Cannot remove " + checkoutDir );

         }

         // Do the actual checkout

         List<String> cmdList = new ArrayList<String>();

         if ( repo.isPushChanges() )

         {

             cmdList.add( HgCommandConstants.CLONE_CMD );

         }

         else

         {

             cmdList.add( HgCommandConstants.UPDATE_CMD );

         }

         if ( scmVersion != null && !StringUtils.isEmpty( scmVersion.getName() ) )

         {

             cmdList.add( HgCommandConstants.REVISION_OPTION );

             cmdList.add( scmVersion.getName() );

         }

         if ( !repo.isPushChanges() )

         {

             cmdList.add( HgCommandConstants.CLEAN_OPTION );

         }

         cmdList.add( url );

         cmdList.add( checkoutDir.getAbsolutePath() );

         String[] checkoutCmd = cmdList.toArray( new String[0] );

         HgConsumer checkoutConsumer = new HgConsumer( getLogger() );

         HgUtils.execute( checkoutConsumer, getLogger(), checkoutDir.getParentFile(), checkoutCmd );

         // Do inventory to find list of checkedout files

         String[] inventoryCmd = new String[]{ HgCommandConstants.INVENTORY_CMD };

         HgCheckOutConsumer consumer = new HgCheckOutConsumer( getLogger(), checkoutDir );

         ScmResult result = HgUtils.execute( consumer, getLogger(), checkoutDir, inventoryCmd );

         return new CheckOutScmResult( consumer.getCheckedOutFiles(), result );

     }

 }