001package org.apache.maven.scm.provider.perforce.command.remove;
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;
024import java.util.regex.Matcher;
025import java.util.regex.Pattern;
026
027import org.apache.maven.scm.ScmFile;
028import org.apache.maven.scm.ScmFileStatus;
029import org.apache.maven.scm.provider.perforce.command.AbstractPerforceConsumer;
030import org.codehaus.plexus.util.cli.StreamConsumer;
031
032/**
033 * @author Mike Perham
034 * @author Olivier Lamy
035 *
036 */
037public class PerforceRemoveConsumer
038    extends AbstractPerforceConsumer
039    implements StreamConsumer
040{
041    private static final String FILE_BEGIN_TOKEN = "//";
042
043    private static final Pattern REVISION_PATTERN = Pattern.compile( "^([^#]+)#\\d+ - (.*)" );
044
045    private List<ScmFile> removals = new ArrayList<ScmFile>();
046
047    private boolean error = false;
048
049    public List<ScmFile> getRemovals()
050    {
051        return removals;
052    }
053
054    /** {@inheritDoc} */
055    public void consumeLine( String line )
056    {
057        if ( line.startsWith( "... " ) )
058        {
059            return;
060        }
061
062        if ( !line.startsWith( FILE_BEGIN_TOKEN ) )
063        {
064            error( line );
065        }
066
067        Matcher matcher = REVISION_PATTERN.matcher( line );
068        if ( !matcher.matches() )
069        {
070            error( line );
071        }
072
073        removals.add( new ScmFile( matcher.group( 1 ), ScmFileStatus.DELETED ) );
074    }
075
076    private void error( String line )
077    {
078        error = true;
079        output.println( line );
080    }
081
082    public boolean isSuccess()
083    {
084        return !error;
085    }
086}