001package org.apache.maven.scm.provider.git.jgit.command.remoteinfo;
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.CommandParameters;
023import org.apache.maven.scm.ScmException;
024import org.apache.maven.scm.ScmFileSet;
025import org.apache.maven.scm.command.remoteinfo.AbstractRemoteInfoCommand;
026import org.apache.maven.scm.command.remoteinfo.RemoteInfoScmResult;
027import org.apache.maven.scm.provider.ScmProviderRepository;
028import org.apache.maven.scm.provider.git.command.GitCommand;
029import org.apache.maven.scm.provider.git.jgit.command.JGitUtils;
030import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository;
031import org.eclipse.jgit.api.Git;
032import org.eclipse.jgit.api.LsRemoteCommand;
033import org.eclipse.jgit.lib.Ref;
034import org.eclipse.jgit.lib.Repository;
035import org.eclipse.jgit.transport.CredentialsProvider;
036
037import java.util.Collection;
038import java.util.HashMap;
039import java.util.Map;
040
041/**
042 * @author Dominik Bartholdi (imod)
043 * @since 1.9
044 */
045public class JGitRemoteInfoCommand
046    extends AbstractRemoteInfoCommand
047    implements GitCommand
048{
049
050    @Override
051    public RemoteInfoScmResult executeRemoteInfoCommand( ScmProviderRepository repository, ScmFileSet fileSet,
052                                                         CommandParameters parameters )
053        throws ScmException
054    {
055
056        GitScmProviderRepository repo = (GitScmProviderRepository) repository;
057        Git git = null;
058        try
059        {
060            git = Git.open( fileSet.getBasedir() );
061            CredentialsProvider credentials = JGitUtils.getCredentials( repo );
062
063            LsRemoteCommand lsCommand =
064                git.lsRemote().setRemote( repo.getPushUrl() ).setCredentialsProvider( credentials );
065
066            Map<String, String> tag = new HashMap<String, String>();
067            Collection<Ref> allTags = lsCommand.setHeads( false ).setTags( true ).call();
068            for ( Ref ref : allTags )
069            {
070                tag.put( Repository.shortenRefName( ref.getName() ), ref.getObjectId().name() );
071            }
072
073            Map<String, String> heads = new HashMap<String, String>();
074            Collection<Ref> allHeads = lsCommand.setHeads( true ).setTags( false ).call();
075            for ( Ref ref : allHeads )
076            {
077                heads.put( Repository.shortenRefName( ref.getName() ), ref.getObjectId().name() );
078            }
079
080            return new RemoteInfoScmResult( "JGit remoteinfo", heads, tag );
081        }
082        catch ( Exception e )
083        {
084            throw new ScmException( "JGit remoteinfo failure!", e );
085        }
086        finally
087        {
088            JGitUtils.closeRepo( git );
089        }
090    }
091}