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1   package org.apache.maven.scm.provider.git.gitexe.command.branch;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   * http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.maven.scm.log.ScmLogger;
23  import org.apache.maven.scm.util.AbstractConsumer;
24  
25  /**
26   * This logger parses the output of <i>git symbolic-ref HEAD</i>
27   * to determine the current branch.
28   * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
29   *
30   */
31  public class GitCurrentBranchConsumer
32      extends AbstractConsumer
33  {
34      
35      private final static String BRANCH_INDICATOR = "refs/heads/";
36      
37      private String branch;
38      
39      /**
40       * Default constructor.
41       */
42      public GitCurrentBranchConsumer( ScmLogger logger )
43      {
44          super( logger );
45      }
46  
47      public String getBranchName()
48      {
49          return branch;
50      }
51  
52      // ----------------------------------------------------------------------
53      // StreamConsumer Implementation
54      // ----------------------------------------------------------------------
55  
56      /** {@inheritDoc} */
57      public void consumeLine( String line )
58      {
59          line = line.trim();
60          
61          if ( line.startsWith( BRANCH_INDICATOR ) )
62          {
63              branch = line.substring( BRANCH_INDICATOR.length() );
64          }
65      }
66  
67  }