001package 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 022import org.apache.maven.scm.ScmException; 023import org.apache.maven.scm.ScmFileSet; 024import org.apache.maven.scm.ScmFileStatus; 025import org.apache.maven.scm.ScmResult; 026import org.apache.maven.scm.command.branch.AbstractBranchCommand; 027import org.apache.maven.scm.command.branch.BranchScmResult; 028import org.apache.maven.scm.log.ScmLogger; 029import org.apache.maven.scm.provider.ScmProviderRepository; 030import org.apache.maven.scm.provider.git.command.GitCommand; 031import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository; 032import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils; 033import org.apache.maven.scm.provider.git.gitexe.command.list.GitListCommand; 034import org.apache.maven.scm.provider.git.gitexe.command.list.GitListConsumer; 035import org.codehaus.plexus.util.StringUtils; 036import org.codehaus.plexus.util.cli.CommandLineUtils; 037import org.codehaus.plexus.util.cli.Commandline; 038 039import java.io.File; 040 041/** 042 * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a> 043 * 044 */ 045public 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( "refs/heads/" + 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}