001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.maven.scm.provider.git.gitexe.command.branch;
020
021import org.apache.maven.scm.util.AbstractConsumer;
022
023/**
024 * This logger parses the output of <i>git symbolic-ref HEAD</i>
025 * to determine the current branch.
026 * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
027 *
028 */
029public class GitCurrentBranchConsumer extends AbstractConsumer {
030
031    private static final String BRANCH_INDICATOR = "refs/heads/";
032
033    private String branch;
034
035    public String getBranchName() {
036        return branch;
037    }
038
039    // ----------------------------------------------------------------------
040    // StreamConsumer Implementation
041    // ----------------------------------------------------------------------
042
043    /** {@inheritDoc} */
044    public void consumeLine(String line) {
045        line = line.trim();
046
047        if (line.startsWith(BRANCH_INDICATOR)) {
048            branch = line.substring(BRANCH_INDICATOR.length());
049        }
050    }
051}