package org.apache.maven.scm.provider.svn.svnexe.command.update;
   
   /*
    * 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 org.apache.maven.scm.ScmBranch;
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmTag;
  import org.apache.maven.scm.ScmVersion;
  import org.apache.maven.scm.command.changelog.ChangeLogCommand;
  import org.apache.maven.scm.command.update.AbstractUpdateCommand;
  import org.apache.maven.scm.command.update.UpdateScmResult;
  import org.apache.maven.scm.command.update.UpdateScmResultWithRevision;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.svn.SvnTagBranchUtils;
  import org.apache.maven.scm.provider.svn.command.SvnCommand;
  import org.apache.maven.scm.provider.svn.repository.SvnScmProviderRepository;
  import org.apache.maven.scm.provider.svn.svnexe.command.SvnCommandLineUtils;
  import org.apache.maven.scm.provider.svn.svnexe.command.changelog.SvnChangeLogCommand;
  import org.apache.maven.scm.provider.svn.util.SvnUtil;
  import org.apache.maven.scm.providers.svn.settings.Settings;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  /**
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
   *
   */
  public class SvnUpdateCommand
      extends AbstractUpdateCommand
      implements SvnCommand
  {
      /** {@inheritDoc} */
      protected UpdateScmResult executeUpdateCommand( ScmProviderRepository repo, ScmFileSet fileSet, ScmVersion version )
          throws ScmException
      {
          Commandline cl = createCommandLine( (SvnScmProviderRepository) repo, fileSet.getBasedir(), version );
  
          SvnUpdateConsumer consumer = new SvnUpdateConsumer( getLogger(), fileSet.getBasedir() );
  
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          if ( getLogger().isInfoEnabled() )
          {
              getLogger().info( "Executing: " + SvnCommandLineUtils.cryptPassword( cl ) );
              getLogger().info( "Working directory: " + cl.getWorkingDirectory().getAbsolutePath() );
          }
  
          int exitCode;
  
          try
          {
              exitCode = SvnCommandLineUtils.execute( cl, consumer, stderr, getLogger() );
          }
          catch ( CommandLineException ex )
          {
              throw new ScmException( "Error while executing command.", ex );
          }
  
          if ( exitCode != 0 )
          {
              return new UpdateScmResult( cl.toString(), "The svn command failed.", stderr.getOutput(), false );
          }
  
          UpdateScmResultWithRevision result = new UpdateScmResultWithRevision( cl.toString(), consumer.getUpdatedFiles(),
                                                  String.valueOf( consumer.getRevision() ) );
          
          result.setChanges( consumer.getChangeSets() );
  
          if ( getLogger().isDebugEnabled() )
          {
              getLogger().debug( "changeSets " + consumer.getChangeSets() );
          }
          
          return result;
      }
  
      // ----------------------------------------------------------------------
     //
     // ----------------------------------------------------------------------
 
     public static Commandline createCommandLine( SvnScmProviderRepository repository, File workingDirectory,
                                                  ScmVersion version )
     {
         Settings settings = SvnUtil.getSettings();
 
         String workingDir = workingDirectory.getAbsolutePath();
 
         if ( settings.isUseCygwinPath() )
         {
             workingDir = settings.getCygwinMountPath() + "/" + workingDir;
             workingDir = StringUtils.replace( workingDir, ":", "" );
             workingDir = StringUtils.replace( workingDir, "\\", "/" );
         }
 
         if ( version != null && StringUtils.isEmpty( version.getName() ) )
         {
             version = null;
         }
 
         Commandline cl = SvnCommandLineUtils.getBaseSvnCommandLine( workingDirectory, repository );
 
         if ( version == null || SvnTagBranchUtils.isRevisionSpecifier( version ) )
         {
             cl.createArg().setValue( "update" );
 
             if ( version != null && StringUtils.isNotEmpty( version.getName() ) )
             {
                 cl.createArg().setValue( "-r" );
                 cl.createArg().setValue( version.getName() );
             }
 
             cl.createArg().setValue( workingDir );
         }
         else
         {
             if ( version instanceof ScmBranch )
             {
                 // The tag specified does not appear to be numeric, so assume it refers
                 // to a branch/tag url and perform a switch operation rather than update
                 cl.createArg().setValue( "switch" );
                 if ( version instanceof ScmTag )
                 {
                     cl.createArg().setValue( SvnTagBranchUtils.resolveTagUrl( repository, (ScmTag) version ) );
                 }
                 else
                 {
                     cl.createArg().setValue(
                         SvnTagBranchUtils.resolveBranchUrl( repository, (ScmBranch) version ) );
                 }
                 cl.createArg().setValue( workingDir );
             }
         }
 
         return cl;
     }
 
     /** {@inheritDoc} */
     protected ChangeLogCommand getChangeLogCommand()
     {
         SvnChangeLogCommand command = new SvnChangeLogCommand();
 
         command.setLogger( getLogger() );
 
         return command;
     }
 
 
 }