001 package 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
022 import org.apache.maven.scm.ScmException;
023 import org.apache.maven.scm.ScmFileSet;
024 import org.apache.maven.scm.ScmFileStatus;
025 import org.apache.maven.scm.ScmResult;
026 import org.apache.maven.scm.command.branch.AbstractBranchCommand;
027 import org.apache.maven.scm.command.branch.BranchScmResult;
028 import org.apache.maven.scm.log.ScmLogger;
029 import org.apache.maven.scm.provider.ScmProviderRepository;
030 import org.apache.maven.scm.provider.git.command.GitCommand;
031 import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository;
032 import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils;
033 import org.apache.maven.scm.provider.git.gitexe.command.list.GitListCommand;
034 import org.apache.maven.scm.provider.git.gitexe.command.list.GitListConsumer;
035 import org.codehaus.plexus.util.StringUtils;
036 import org.codehaus.plexus.util.cli.CommandLineUtils;
037 import org.codehaus.plexus.util.cli.Commandline;
038
039 import java.io.File;
040
041 /**
042 * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
043 * @version $Id: GitBranchCommand.java 1070251 2011-02-13 15:35:40Z struberg $
044 */
045 public class GitBranchCommand
046 extends AbstractBranchCommand
047 implements GitCommand
048 {
049 /** {@inheritDoc} */
050 public ScmResult executeBranchCommand( ScmProviderRepository repo, ScmFileSet fileSet, String branch, String message )
051 throws ScmException
052 {
053 if ( branch == null || StringUtils.isEmpty( branch.trim() ) )
054 {
055 throw new ScmException( "branch name must be specified" );
056 }
057
058 if ( !fileSet.getFileList().isEmpty() )
059 {
060 throw new ScmException( "This provider doesn't support branching subsets of a directory" );
061 }
062
063 GitScmProviderRepository repository = (GitScmProviderRepository) repo;
064
065 Commandline cl = createCommandLine( repository, fileSet.getBasedir(), branch );
066
067 CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer();
068 CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
069 int exitCode;
070
071 exitCode = GitCommandLineUtils.execute( cl, stdout, stderr, getLogger() );
072 if ( exitCode != 0 )
073 {
074 return new BranchScmResult( cl.toString(), "The git-branch command failed.", stderr.getOutput(), false );
075 }
076
077 if( repo.isPushChanges() )
078 {
079 // and now push the branch to the upstream repository
080 Commandline clPush = createPushCommandLine( repository, fileSet, branch );
081
082 exitCode = GitCommandLineUtils.execute( clPush, stdout, stderr, getLogger() );
083 if ( exitCode != 0 )
084 {
085 return new BranchScmResult( clPush.toString(), "The git-push command failed.", stderr.getOutput(), false );
086 }
087 }
088
089 // as last action we search for the branched files
090 GitListConsumer listConsumer = new GitListConsumer( getLogger(), fileSet.getBasedir(), ScmFileStatus.TAGGED );
091
092 Commandline clList = GitListCommand.createCommandLine( repository, fileSet.getBasedir() );
093
094 exitCode = GitCommandLineUtils.execute( clList, listConsumer, stderr, getLogger() );
095 if ( exitCode != 0 )
096 {
097 return new BranchScmResult( clList.toString(), "The git-ls-files command failed.", stderr.getOutput(),
098 false );
099 }
100
101 return new BranchScmResult( cl.toString(), listConsumer.getListedFiles() );
102 }
103
104 // ----------------------------------------------------------------------
105 //
106 // ----------------------------------------------------------------------
107
108 public static Commandline createCommandLine( GitScmProviderRepository repository, File workingDirectory,
109 String branch )
110 {
111 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( workingDirectory, "branch" );
112
113 cl.createArg().setValue( branch );
114
115 return cl;
116 }
117
118 public static Commandline createPushCommandLine( GitScmProviderRepository repository, ScmFileSet fileSet,
119 String branch )
120 throws ScmException
121 {
122 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( fileSet.getBasedir(), "push" );
123
124 cl.createArg().setValue( repository.getPushUrl() );
125 cl.createArg().setValue( branch );
126
127 return cl;
128 }
129
130 /**
131 * Helper function to detect the current branch
132 */
133 public static String getCurrentBranch( ScmLogger logger, GitScmProviderRepository repository, ScmFileSet fileSet )
134 throws ScmException
135 {
136 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( fileSet.getBasedir(), "symbolic-ref" );
137 cl.createArg().setValue( "HEAD" );
138
139 CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
140 GitCurrentBranchConsumer cbConsumer = new GitCurrentBranchConsumer( logger );
141 int exitCode;
142
143 exitCode = GitCommandLineUtils.execute( cl, cbConsumer, stderr, logger );
144
145 if ( exitCode != 0 )
146 {
147 throw new ScmException( "Detecting the current branch failed: " + stderr.getOutput() );
148 }
149
150 return cbConsumer.getBranchName();
151 }
152 }