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1   package org.apache.maven.scm.provider.git.jgit.command.remoteinfo;
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.CommandParameters;
23  import org.apache.maven.scm.ScmException;
24  import org.apache.maven.scm.ScmFileSet;
25  import org.apache.maven.scm.command.remoteinfo.AbstractRemoteInfoCommand;
26  import org.apache.maven.scm.command.remoteinfo.RemoteInfoScmResult;
27  import org.apache.maven.scm.provider.ScmProviderRepository;
28  import org.apache.maven.scm.provider.git.command.GitCommand;
29  import org.apache.maven.scm.provider.git.jgit.command.JGitUtils;
30  import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository;
31  import org.eclipse.jgit.api.Git;
32  import org.eclipse.jgit.api.LsRemoteCommand;
33  import org.eclipse.jgit.lib.Ref;
34  import org.eclipse.jgit.lib.Repository;
35  import org.eclipse.jgit.transport.CredentialsProvider;
36  
37  import java.util.Collection;
38  import java.util.HashMap;
39  import java.util.Map;
40  
41  /**
42   * @author Dominik Bartholdi (imod)
43   * @since 1.9
44   */
45  public class JGitRemoteInfoCommand
46      extends AbstractRemoteInfoCommand
47      implements GitCommand
48  {
49  
50      @Override
51      public RemoteInfoScmResult executeRemoteInfoCommand( ScmProviderRepository repository, ScmFileSet fileSet,
52                                                           CommandParameters parameters )
53          throws ScmException
54      {
55  
56          GitScmProviderRepository repo = (GitScmProviderRepository) repository;
57          Git git = null;
58          try
59          {
60              git = Git.open( fileSet.getBasedir() );
61              CredentialsProvider credentials = JGitUtils.getCredentials( repo );
62  
63              LsRemoteCommand lsCommand =
64                  git.lsRemote().setRemote( repo.getPushUrl() ).setCredentialsProvider( credentials );
65  
66              Map<String, String> tag = new HashMap<String, String>();
67              Collection<Ref> allTags = lsCommand.setHeads( false ).setTags( true ).call();
68              for ( Ref ref : allTags )
69              {
70                  tag.put( Repository.shortenRefName( ref.getName() ), ref.getObjectId().name() );
71              }
72  
73              Map<String, String> heads = new HashMap<String, String>();
74              Collection<Ref> allHeads = lsCommand.setHeads( true ).setTags( false ).call();
75              for ( Ref ref : allHeads )
76              {
77                  heads.put( Repository.shortenRefName( ref.getName() ), ref.getObjectId().name() );
78              }
79  
80              return new RemoteInfoScmResult( "JGit remoteinfo", heads, tag );
81          }
82          catch ( Exception e )
83          {
84              throw new ScmException( "JGit remoteinfo failure!", e );
85          }
86          finally
87          {
88              JGitUtils.closeRepo( git );
89          }
90      }
91  }