package org.apache.maven.scm.provider.clearcase.command.blame;

 /*

  * 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.command.blame.AbstractBlameCommand;

 import org.apache.maven.scm.command.blame.BlameScmResult;

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

 import org.apache.maven.scm.provider.clearcase.command.ClearCaseCommand;

 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;

 /**

  * @author Jérémie Lagarde

  * @since 1.4

  */

 public class ClearCaseBlameCommand

     extends AbstractBlameCommand

     implements ClearCaseCommand

 {

     public BlameScmResult executeBlameCommand( ScmProviderRepository repo, ScmFileSet workingDirectory, String filename )

         throws ScmException

     {

         if ( getLogger().isDebugEnabled() )

         {

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

         }

         Commandline cl = createCommandLine( workingDirectory.getBasedir(), filename );

         ClearCaseBlameConsumer consumer = new ClearCaseBlameConsumer( getLogger() );

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

         int exitCode;

         try

         {

             if ( getLogger().isDebugEnabled() )

             {

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

             }

             exitCode = CommandLineUtils.executeCommandLine( cl, consumer, stderr );

         }

         catch ( CommandLineException ex )

         {

             throw new ScmException( "Error while executing cvs command.", ex );

         }

         if ( exitCode != 0 )

         {

             return new BlameScmResult( cl.toString(), "The cleartool command failed.", stderr.getOutput(), false );

         }

         return new BlameScmResult( cl.toString(), consumer.getLines() );

     }

     public static Commandline createCommandLine( File workingDirectory, String filename )

     {

         Commandline command = new Commandline();

         command.setExecutable( "cleartool" );

         command.createArg().setValue( "annotate" );

         command.setWorkingDirectory( workingDirectory.getAbsolutePath() );

         StringBuilder format = new StringBuilder();

         format.append( "VERSION:%Ln@@@" );

         format.append( "USER:%u@@@" );

         format.append( "DATE:%Nd@@@" );

         command.createArg().setValue( "-out" );

         command.createArg().setValue( "-" );

         command.createArg().setValue( "-fmt" );

         command.createArg().setValue( format.toString() );

         command.createArg().setValue( "-nheader" );

         command.createArg().setValue( "-f" );

         command.createArg().setValue( filename );

         return command;

     }

 }