package org.apache.maven.scm.provider.perforce.command.unedit;
   
   /*
    * 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.command.unedit.AbstractUnEditCommand;
  import org.apache.maven.scm.command.unedit.UnEditScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.perforce.PerforceScmProvider;
  import org.apache.maven.scm.provider.perforce.command.PerforceCommand;
  import org.apache.maven.scm.provider.perforce.repository.PerforceScmProviderRepository;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  import java.io.File;
  import java.util.List;
  
  /**
   * @author Mike Perham
   * @author Olivier Lamy
   *
   */
  public class PerforceUnEditCommand
      extends AbstractUnEditCommand
      implements PerforceCommand
  {
  
      /** {@inheritDoc} */
      protected ScmResult executeUnEditCommand( ScmProviderRepository repo, ScmFileSet files )
          throws ScmException
      {
          Commandline cl = createCommandLine( (PerforceScmProviderRepository) repo, files.getBasedir(), files );
          PerforceUnEditConsumer consumer = new PerforceUnEditConsumer();
          try
          {
              CommandLineUtils.StringStreamConsumer err = new CommandLineUtils.StringStreamConsumer();
              int exitCode = CommandLineUtils.executeCommandLine( cl, consumer, err );
  
              if ( exitCode != 0 )
              {
                  String cmdLine = CommandLineUtils.toString( cl.getCommandline() );
  
                  StringBuilder msg = new StringBuilder( "Exit code: " + exitCode + " - " + err.getOutput() );
                  msg.append( '\n' );
                  msg.append( "Command line was:" + cmdLine );
  
                  throw new CommandLineException( msg.toString() );
              }
          }
          catch ( CommandLineException e )
          {
              if ( getLogger().isErrorEnabled() )
              {
                  getLogger().error( "CommandLineException " + e.getMessage(), e );
              }
          }
  
          if ( consumer.isSuccess() )
          {
              return new UnEditScmResult( cl.toString(), consumer.getEdits() );
          }
  
          return new UnEditScmResult( cl.toString(), "Unable to revert", consumer.getOutput(), consumer.isSuccess() );
      }
  
      public static Commandline createCommandLine( PerforceScmProviderRepository repo, File workingDirectory,
                                                   ScmFileSet files )
      {
          Commandline command = PerforceScmProvider.createP4Command( repo, workingDirectory );
  
          command.createArg().setValue( "revert" );
  
          List<File> fs = files.getFileList();
          for ( File file : fs )
          {
              command.createArg().setValue( file.getName() );
          }
          return command;
      }
 }