package org.apache.maven.scm.provider.vss.commands.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 org.apache.maven.scm.ScmException;

 import org.apache.maven.scm.ScmFileSet;

 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.provider.ScmProviderRepository;

 import org.apache.maven.scm.provider.vss.commands.VssCommandLineUtils;

 import org.apache.maven.scm.provider.vss.commands.VssConstants;

 import org.apache.maven.scm.provider.vss.commands.changelog.VssHistoryCommand;

 import org.apache.maven.scm.provider.vss.repository.VssScmProviderRepository;

 import org.codehaus.plexus.util.cli.CommandLineUtils;

 import org.codehaus.plexus.util.cli.Commandline;

 /**

  * @author <a href="mailto:triek@thrx.de">Thorsten Riek</a>

  * @version $Id: VssUpdateCommand.java 885129 2009-11-28 19:13:15Z olamy $

  */

 public class VssUpdateCommand

     extends AbstractUpdateCommand

 {

     // TODO handle deleted files from VSS

     /** {@inheritDoc} */

     protected UpdateScmResult executeUpdateCommand( ScmProviderRepository repository, ScmFileSet fileSet,

                                                     ScmVersion version )

         throws ScmException

     {

         if ( getLogger().isDebugEnabled() )

         {

             getLogger().debug( "executing update command..." );

         }

         VssScmProviderRepository repo = (VssScmProviderRepository) repository;

         Commandline cl = buildCmdLine( repo, fileSet, version );

         VssUpdateConsumer consumer = new VssUpdateConsumer( repo, getLogger() );

         // TODO handle deleted files from VSS

         // TODO identify local files

         CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();

         int exitCode;

         if ( getLogger().isDebugEnabled() )

         {

             getLogger().debug( "Executing: " + cl.getWorkingDirectory().getAbsolutePath() + ">>" + cl.toString() );

         }

         exitCode = VssCommandLineUtils.executeCommandline( cl, consumer, stderr, getLogger() );

         if ( exitCode != 0 )

         {

             String error = stderr.getOutput();

             if ( getLogger().isDebugEnabled() )

             {

                 getLogger().debug( "VSS returns error: [" + error + "] return code: [" + exitCode + "]" );

             }

             if ( error.indexOf( "A writable copy of" ) < 0 )

             {

                 return new UpdateScmResult( cl.toString(), "The vss command failed.", error, false );

             }

             // print out the writable copy for manual handling

             if ( getLogger().isWarnEnabled() )

             {

                 getLogger().warn( error );

             }

         }

         return new UpdateScmResult( cl.toString(), consumer.getUpdatedFiles() );

     }

     public Commandline buildCmdLine( VssScmProviderRepository repo, ScmFileSet fileSet, ScmVersion version )

         throws ScmException

     {

         Commandline command = new Commandline();

         command.setWorkingDirectory( fileSet.getBasedir().getAbsolutePath() );

         try

         {

             command.addSystemEnvironment();

         }

         catch ( Exception e )

         {

             throw new ScmException( "Can't add system environment.", e );

         }

         command.addEnvironment( "SSDIR", repo.getVssdir() );

         String ssDir = VssCommandLineUtils.getSsDir();

         command.setExecutable( ssDir + VssConstants.SS_EXE );

         command.createArg().setValue( VssConstants.COMMAND_GET );

         command.createArg().setValue( VssConstants.PROJECT_PREFIX + repo.getProject() );

         //User identification to get access to vss repository

         if ( repo.getUserPassword() != null )

         {

             command.createArg().setValue( VssConstants.FLAG_LOGIN + repo.getUserPassword() );

         }

         //Display the history of an entire project list

         command.createArg().setValue( VssConstants.FLAG_RECURSION );

         //Ignore: Do not ask for input under any circumstances.

         command.createArg().setValue( VssConstants.FLAG_AUTORESPONSE_DEF );

         // FIXME Update command only works if there is no file checked out

         // or no file is dirty locally. It's better than overwriting

         // checked out files

         //Ignore: Do not touch local writable files.

         command.createArg().setValue( VssConstants.FLAG_SKIP_WRITABLE );

         if ( version != null )

         {

             command.createArg().setValue( VssConstants.FLAG_VERSION_LABEL + version );

         }

         return command;

     }

     /** {@inheritDoc} */

     protected ChangeLogCommand getChangeLogCommand()

     {

         VssHistoryCommand command = new VssHistoryCommand();

         command.setLogger( getLogger() );

         return command;

     }

 }