001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.maven.scm.provider.git.gitexe.command.update; 020 021import java.io.File; 022 023import org.apache.maven.scm.ScmBranch; 024import org.apache.maven.scm.ScmException; 025import org.apache.maven.scm.ScmFileSet; 026import org.apache.maven.scm.ScmVersion; 027import org.apache.maven.scm.command.changelog.ChangeLogCommand; 028import org.apache.maven.scm.command.update.AbstractUpdateCommand; 029import org.apache.maven.scm.command.update.UpdateScmResult; 030import org.apache.maven.scm.command.update.UpdateScmResultWithRevision; 031import org.apache.maven.scm.provider.ScmProviderRepository; 032import org.apache.maven.scm.provider.git.command.GitCommand; 033import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils; 034import org.apache.maven.scm.provider.git.gitexe.command.changelog.GitChangeLogCommand; 035import org.apache.maven.scm.provider.git.gitexe.command.diff.GitDiffCommand; 036import org.apache.maven.scm.provider.git.gitexe.command.diff.GitDiffRawConsumer; 037import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository; 038import org.codehaus.plexus.util.cli.CommandLineUtils; 039import org.codehaus.plexus.util.cli.Commandline; 040 041/** 042 * @author Olivier Lamy 043 * @author <a href="mailto:struberg@yahoo.de">struberg</a> 044 * @since 10 august 2008 045 * 046 */ 047public class GitUpdateCommand extends AbstractUpdateCommand implements GitCommand { 048 /** {@inheritDoc} */ 049 protected UpdateScmResult executeUpdateCommand( 050 ScmProviderRepository repo, ScmFileSet fileSet, ScmVersion scmVersion) throws ScmException { 051 GitScmProviderRepository repository = (GitScmProviderRepository) repo; 052 053 if (GitScmProviderRepository.PROTOCOL_FILE.equals( 054 repository.getFetchInfo().getProtocol()) 055 && repository 056 .getFetchInfo() 057 .getPath() 058 .indexOf(fileSet.getBasedir().getPath()) 059 >= 0) { 060 throw new ScmException("remote repository must not be the working directory"); 061 } 062 063 int exitCode; 064 065 CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer(); 066 CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer(); 067 068 // fir we need to get the current reversion 069 Commandline clRev = createLatestRevisionCommandLine(repository, fileSet.getBasedir(), scmVersion); 070 GitLatestRevisionCommandConsumer consumerRev = new GitLatestRevisionCommandConsumer(); 071 exitCode = GitCommandLineUtils.execute(clRev, consumerRev, stderr); 072 if (exitCode != 0) { 073 return new UpdateScmResult(clRev.toString(), "The git-log command failed.", stderr.getOutput(), false); 074 } 075 String origSha1 = consumerRev.getLatestRevision(); 076 077 Commandline cl = createCommandLine(repository, fileSet.getBasedir(), scmVersion); 078 exitCode = GitCommandLineUtils.execute(cl, stdout, stderr); 079 if (exitCode != 0) { 080 return new UpdateScmResult(cl.toString(), "The git-pull command failed.", stderr.getOutput(), false); 081 } 082 083 // we also need to log exactly what has been updated 084 GitDiffRawConsumer diffRawConsumer = new GitDiffRawConsumer(); 085 Commandline clDiffRaw = GitDiffCommand.createDiffRawCommandLine(fileSet.getBasedir(), origSha1); 086 exitCode = GitCommandLineUtils.execute(clDiffRaw, diffRawConsumer, stderr); 087 if (exitCode != 0) { 088 return new UpdateScmResult( 089 clDiffRaw.toString(), "The git-diff --raw command failed.", stderr.getOutput(), false); 090 } 091 092 // now let's get the latest version 093 consumerRev = new GitLatestRevisionCommandConsumer(); 094 exitCode = GitCommandLineUtils.execute(clRev, consumerRev, stderr); 095 if (exitCode != 0) { 096 return new UpdateScmResult(clRev.toString(), "The git-log command failed.", stderr.getOutput(), false); 097 } 098 String latestRevision = consumerRev.getLatestRevision(); 099 100 return new UpdateScmResultWithRevision(cl.toString(), diffRawConsumer.getChangedFiles(), latestRevision); 101 } 102 103 /** {@inheritDoc} */ 104 protected ChangeLogCommand getChangeLogCommand() { 105 return new GitChangeLogCommand(); 106 } 107 108 /** 109 * create the command line for updating the current branch with the info from the foreign repository. 110 */ 111 public static Commandline createCommandLine( 112 GitScmProviderRepository repository, File workingDirectory, ScmVersion scmVersion) { 113 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine(workingDirectory, "pull"); 114 115 cl.createArg().setLine(repository.getFetchUrl()); 116 117 // now set the branch where we would like to pull from 118 if (scmVersion instanceof ScmBranch) { 119 cl.createArg().setLine(scmVersion.getName()); 120 } 121 122 return cl; 123 } 124 125 /** 126 * @param scmVersion a valid branch or <code>null</code> if the master branch should be taken 127 * @return CommandLine for getting the latest commit on the given branch 128 */ 129 public static Commandline createLatestRevisionCommandLine( 130 GitScmProviderRepository repository, File workingDirectory, ScmVersion scmVersion) { 131 Commandline cl = GitCommandLineUtils.getBaseGitCommandLine(workingDirectory, "log"); 132 133 // only show exactly 1 commit 134 cl.createArg().setValue("-n1"); 135 136 // same as --topo-order, but ensure ordering of merges 137 cl.createArg().setValue("--date-order"); 138 139 if (scmVersion != null 140 && scmVersion instanceof ScmBranch 141 && scmVersion.getName() != null 142 && scmVersion.getName().length() > 0) { 143 // if any branch is given, lets take em 144 cl.createArg().setValue(scmVersion.getName()); 145 } 146 // otherwise we work on HEAD/current branch 147 148 return cl; 149 } 150}