001package org.apache.maven.scm.provider.git.gitexe.command.diff;
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
022import java.util.ArrayList;
023import java.util.List;
024
025import org.apache.maven.scm.ScmFile;
026import org.apache.maven.scm.ScmFileStatus;
027import org.apache.maven.scm.log.ScmLogger;
028import org.codehaus.plexus.util.StringUtils;
029import org.codehaus.plexus.util.cli.StreamConsumer;
030
031/**
032 * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
033 *
034 */
035public class GitDiffRawConsumer
036    implements StreamConsumer
037{
038    private ScmLogger logger;
039
040    private List<ScmFile> changedFiles = new ArrayList<ScmFile>();
041
042    // ----------------------------------------------------------------------
043    //
044    // ----------------------------------------------------------------------
045
046    public GitDiffRawConsumer(ScmLogger logger)
047    {
048        this.logger = logger;
049    }
050
051    // ----------------------------------------------------------------------
052    // StreamConsumer Implementation
053    // ----------------------------------------------------------------------
054
055    /**
056     * {@inheritDoc}
057     */
058    public void consumeLine( String line )
059    {
060        if ( logger.isDebugEnabled() )
061        {
062            logger.debug( line );
063        }
064        if ( StringUtils.isEmpty( line ) )
065        {
066            return;
067        }
068
069        ScmFileStatus status = null;
070
071        String[] parts = line.split( "\\s", 6 );
072        if ( parts.length != 6 )
073        {
074            logger.warn( "Skipping line because it doesn't contain the right status parameters: " + line );
075            return;
076        }
077        
078        String modus = parts[4];
079        String file = parts[5];
080
081        if ( "A".equals( modus ) )
082        {
083            status = ScmFileStatus.ADDED;
084        }
085        else if ( "M".equals( modus ) )
086        {
087            // attention! 'M' is 'updated', and _not_ ScmFileStatus.MODIFIED (which is for 'modified locally')
088            status = ScmFileStatus.UPDATED;
089        }
090        else if ( "D".equals( modus ) )
091        {
092            status = ScmFileStatus.DELETED;
093        }
094        else
095        {
096            logger.warn( "unknown status detected in line: " + line );
097            return;
098        }
099
100        changedFiles.add( new ScmFile( file, status ) );
101    }
102
103    public List<ScmFile> getChangedFiles()
104    {
105        return changedFiles;
106    }
107}