001package org.apache.maven.scm.provider.git.gitexe.command.branch;
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 org.apache.maven.scm.log.ScmLogger;
023import org.apache.maven.scm.util.AbstractConsumer;
024
025/**
026 * This logger parses the output of <i>git symbolic-ref HEAD</i>
027 * to determine the current branch.
028 * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
029 *
030 */
031public class GitCurrentBranchConsumer
032    extends AbstractConsumer
033{
034    
035    private final static String BRANCH_INDICATOR = "refs/heads/";
036    
037    private String branch;
038    
039    /**
040     * Default constructor.
041     */
042    public GitCurrentBranchConsumer( ScmLogger logger )
043    {
044        super( logger );
045    }
046
047    public String getBranchName()
048    {
049        return branch;
050    }
051
052    // ----------------------------------------------------------------------
053    // StreamConsumer Implementation
054    // ----------------------------------------------------------------------
055
056    /** {@inheritDoc} */
057    public void consumeLine( String line )
058    {
059        line = line.trim();
060        
061        if ( line.startsWith( BRANCH_INDICATOR ) )
062        {
063            branch = line.substring( BRANCH_INDICATOR.length() );
064        }
065    }
066
067}