001    package org.apache.maven.scm.provider.cvslib.cvsexe.command.blame;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     * http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import org.apache.maven.scm.ScmException;
023    import org.apache.maven.scm.command.blame.BlameScmResult;
024    import org.apache.maven.scm.provider.cvslib.command.blame.AbstractCvsBlameCommand;
025    import org.apache.maven.scm.provider.cvslib.command.blame.CvsBlameConsumer;
026    import org.apache.maven.scm.provider.cvslib.repository.CvsScmProviderRepository;
027    import org.codehaus.plexus.util.cli.CommandLineException;
028    import org.codehaus.plexus.util.cli.CommandLineUtils;
029    import org.codehaus.plexus.util.cli.Commandline;
030    
031    /**
032     * @author Evgeny Mandrikov
033     * @since 1.4
034     */
035    public class CvsExeBlameCommand
036        extends AbstractCvsBlameCommand
037    {
038        /**
039         * {@inheritDoc}
040         */
041        protected BlameScmResult executeCvsCommand( Commandline cl, CvsScmProviderRepository repository )
042            throws ScmException
043        {
044            CvsBlameConsumer consumer = new CvsBlameConsumer( getLogger() );
045            CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
046            int exitCode;
047            try
048            {
049                exitCode = CommandLineUtils.executeCommandLine( cl, consumer, stderr );
050            }
051            catch ( CommandLineException ex )
052            {
053                throw new ScmException( "Error while executing cvs command.", ex );
054            }
055            if ( exitCode != 0 )
056            {
057                return new BlameScmResult( cl.toString(), "The cvs command failed.", stderr.getOutput(), false );
058            }
059            return new BlameScmResult( cl.toString(), consumer.getLines() );
060        }
061    }