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, 051 String message ) 052 throws ScmException 053 { 054 if ( branch == null || StringUtils.isEmpty( branch.trim() ) ) 055 { 056 throw new ScmException( "branch name must be specified" ); 057 } 058 059 if ( !fileSet.getFileList().isEmpty() ) 060 { 061 throw new ScmException( "This provider doesn't support branching subsets of a directory" ); 062 } 063 064 GitScmProviderRepository repository = (GitScmProviderRepository) repo; 065 066 Commandline cl = createCommandLine( repository, fileSet.getBasedir(), branch ); 067 068 CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer(); 069 CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer(); 070 int exitCode; 071 072 exitCode = GitCommandLineUtils.execute( cl, stdout, stderr, getLogger() ); 073 if ( exitCode != 0 ) 074 { 075 return new BranchScmResult( cl.toString(), "The git-branch command failed.", stderr.getOutput(), false ); 076 } 077 078 if ( repo.isPushChanges() ) 079 { 080 // and now push the branch to the upstream repository 081 Commandline clPush = createPushCommandLine( repository, fileSet, branch ); 082 083 exitCode = GitCommandLineUtils.execute( clPush, stdout, stderr, getLogger() ); 084 if ( exitCode != 0 ) 085 { 086 return new BranchScmResult( clPush.toString(), "The git-push command failed.", stderr.getOutput(), 087 false ); 088 } 089 } 090 091 // as last action we search for the branched files 092 GitListConsumer listConsumer = new GitListConsumer( getLogger(), fileSet.getBasedir(), ScmFileStatus.TAGGED ); 093 094 Commandline clList = GitListCommand.createCommandLine( repository, fileSet.getBasedir() ); 095 096 exitCode = GitCommandLineUtils.execute( clList, listConsumer, stderr, getLogger() ); 097 if ( exitCode != 0 ) 098 { 099 return new BranchScmResult( clList.toString(), "The git-ls-files command failed.", stderr.getOutput(), 100 false ); 101 } 102 103 return new BranchScmResult( cl.toString(), listConsumer.getListedFiles() ); 104 } 105 106 // ---------------------------------------------------------------------- 107 // 108 // ---------------------------------------------------------------------- 109 110 public static Commandline createCommandLine( GitScmProviderRepository repository, File workingDirectory, 111 String branch ) 112 { 113 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( workingDirectory, "branch" ); 114 115 cl.createArg().setValue( branch ); 116 117 return cl; 118 } 119 120 public static Commandline createPushCommandLine( GitScmProviderRepository repository, ScmFileSet fileSet, 121 String branch ) 122 throws ScmException 123 { 124 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( fileSet.getBasedir(), "push" ); 125 126 cl.createArg().setValue( repository.getPushUrl() ); 127 cl.createArg().setValue( "refs/heads/" + branch ); 128 129 return cl; 130 } 131 132 /** 133 * Helper function to detect the current branch 134 */ 135 public static String getCurrentBranch( ScmLogger logger, GitScmProviderRepository repository, ScmFileSet fileSet ) 136 throws ScmException 137 { 138 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( fileSet.getBasedir(), "symbolic-ref" ); 139 cl.createArg().setValue( "HEAD" ); 140 141 CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer(); 142 GitCurrentBranchConsumer cbConsumer = new GitCurrentBranchConsumer( logger ); 143 int exitCode; 144 145 exitCode = GitCommandLineUtils.execute( cl, cbConsumer, stderr, logger ); 146 147 if ( exitCode != 0 ) 148 { 149 throw new ScmException( "Detecting the current branch failed: " + stderr.getOutput() ); 150 } 151 152 return cbConsumer.getBranchName(); 153 } 154}