| package org.apache.maven.scm.provider.git.jgit.command.checkout; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import org.apache.maven.scm.ScmException; |
| import org.apache.maven.scm.ScmFile; |
| import org.apache.maven.scm.ScmFileSet; |
| import org.apache.maven.scm.ScmFileStatus; |
| import org.apache.maven.scm.ScmTag; |
| import org.apache.maven.scm.ScmVersion; |
| import org.apache.maven.scm.command.checkout.AbstractCheckOutCommand; |
| import org.apache.maven.scm.command.checkout.CheckOutScmResult; |
| import org.apache.maven.scm.command.remoteinfo.RemoteInfoScmResult; |
| import org.apache.maven.scm.provider.ScmProviderRepository; |
| import org.apache.maven.scm.provider.git.command.GitCommand; |
| import org.apache.maven.scm.provider.git.jgit.command.JGitUtils; |
| import org.apache.maven.scm.provider.git.jgit.command.branch.JGitBranchCommand; |
| import org.apache.maven.scm.provider.git.jgit.command.remoteinfo.JGitRemoteInfoCommand; |
| import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository; |
| import org.codehaus.plexus.util.StringUtils; |
| import org.eclipse.jgit.api.Git; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.ProgressMonitor; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| import org.eclipse.jgit.revwalk.RevWalk; |
| import org.eclipse.jgit.storage.file.WindowCacheConfig; |
| import org.eclipse.jgit.transport.CredentialsProvider; |
| import org.eclipse.jgit.treewalk.TreeWalk; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a> |
| * @author Dominik Bartholdi (imod) |
| * @since 1.9 |
| */ |
| public class JGitCheckOutCommand |
| extends AbstractCheckOutCommand |
| implements GitCommand |
| { |
| |
| @Override |
| public boolean requiresToWorkInRepoRootDir() |
| { |
| return false; |
| } |
| |
| /** |
| * For git, the given repository is a remote one. We have to clone it first if the working directory does not |
| * contain a git repo yet, otherwise we have to git-pull it. |
| * <p/> |
| * {@inheritDoc} |
| */ |
| protected CheckOutScmResult executeCheckOutCommand( ScmProviderRepository repo, ScmFileSet fileSet, |
| ScmVersion version, boolean recursive ) |
| throws ScmException |
| { |
| GitScmProviderRepository repository = (GitScmProviderRepository) repo; |
| |
| if ( GitScmProviderRepository.PROTOCOL_FILE.equals( repository.getFetchInfo().getProtocol() ) |
| && repository.getFetchInfo().getPath().indexOf( fileSet.getBasedir().getPath() ) >= 0 ) |
| { |
| throw new ScmException( "remote repository must not be the working directory" ); |
| } |
| |
| Git git = null; |
| try |
| { |
| |
| ProgressMonitor monitor = JGitUtils.getMonitor( getLogger() ); |
| |
| String branch = version != null ? version.getName() : null; |
| |
| if ( StringUtils.isBlank( branch ) ) |
| { |
| branch = Constants.MASTER; |
| } |
| |
| getLogger().debug( "try checkout of branch: " + branch ); |
| |
| if ( !fileSet.getBasedir().exists() || !( new File( fileSet.getBasedir(), ".git" ).exists() ) ) |
| { |
| if ( fileSet.getBasedir().exists() ) |
| { |
| // git refuses to clone otherwise |
| fileSet.getBasedir().delete(); |
| } |
| |
| // FIXME only if windauze |
| WindowCacheConfig cfg = new WindowCacheConfig(); |
| cfg.setPackedGitMMAP( false ); |
| cfg.install(); |
| |
| // no git repo seems to exist, let's clone the original repo |
| CredentialsProvider credentials = JGitUtils.getCredentials( (GitScmProviderRepository) repo ); |
| getLogger().info( "cloning [" + branch + "] to " + fileSet.getBasedir() ); |
| git = Git.cloneRepository().setURI( repository.getFetchUrl() ).setCredentialsProvider( credentials ).setBranch( branch ).setDirectory( fileSet.getBasedir() ).setProgressMonitor( monitor ).call(); |
| } |
| |
| JGitRemoteInfoCommand remoteInfoCommand = new JGitRemoteInfoCommand(); |
| remoteInfoCommand.setLogger( getLogger() ); |
| RemoteInfoScmResult result = remoteInfoCommand.executeRemoteInfoCommand( repository, fileSet, null ); |
| |
| if(git == null) { |
| git = Git.open( fileSet.getBasedir() ); |
| } |
| |
| if ( fileSet.getBasedir().exists() && new File( fileSet.getBasedir(), ".git" ).exists() |
| && result.getBranches().size() > 0 ) |
| { |
| // git repo exists, so we must git-pull the changes |
| CredentialsProvider credentials = JGitUtils.prepareSession( getLogger(), git, repository ); |
| |
| if ( version != null && StringUtils.isNotEmpty( version.getName() ) && ( version instanceof ScmTag ) ) |
| { |
| // A tag will not be pulled but we only fetch all the commits from the upstream repo |
| // This is done because checking out a tag might not happen on the current branch |
| // but create a 'detached HEAD'. |
| // In fact, a tag in git may be in multiple branches. This occurs if |
| // you create a branch after the tag has been created |
| getLogger().debug( "fetch..." ); |
| git.fetch().setCredentialsProvider( credentials ).setProgressMonitor( monitor ).call(); |
| } |
| else |
| { |
| getLogger().debug( "pull..." ); |
| git.pull().setCredentialsProvider( credentials ).setProgressMonitor( monitor ).call(); |
| |
| } |
| } |
| |
| Set<String> localBranchNames = JGitBranchCommand.getShortLocalBranchNames( git ); |
| if ( version instanceof ScmTag ) |
| { |
| getLogger().info( "checkout tag [" + branch + "] at " + fileSet.getBasedir() ); |
| git.checkout().setName( branch ).call(); |
| } |
| else if ( localBranchNames.contains( branch ) ) |
| { |
| getLogger().info( "checkout [" + branch + "] at " + fileSet.getBasedir() ); |
| git.checkout().setName( branch ).call(); |
| } |
| else |
| { |
| getLogger().info( "checkout remote branch [" + branch + "] at " + fileSet.getBasedir() ); |
| git.checkout().setName( branch ).setCreateBranch( true ).setStartPoint( Constants.DEFAULT_REMOTE_NAME |
| + "/" + branch ).call(); |
| } |
| |
| RevWalk revWalk = new RevWalk( git.getRepository() ); |
| RevCommit commit = revWalk.parseCommit( git.getRepository().resolve( Constants.HEAD ) ); |
| revWalk.release(); |
| |
| final TreeWalk walk = new TreeWalk( git.getRepository() ); |
| walk.reset(); // drop the first empty tree, which we do not need here |
| walk.setRecursive( true ); |
| walk.addTree( commit.getTree() ); |
| |
| List<ScmFile> listedFiles = new ArrayList<ScmFile>(); |
| while ( walk.next() ) |
| { |
| listedFiles.add( new ScmFile( walk.getPathString(), ScmFileStatus.CHECKED_OUT ) ); |
| } |
| walk.release(); |
| |
| getLogger().debug( "current branch: " + git.getRepository().getBranch() ); |
| |
| return new CheckOutScmResult( "checkout via JGit", listedFiles ); |
| } |
| catch ( Exception e ) |
| { |
| throw new ScmException( "JGit checkout failure!", e ); |
| } |
| finally |
| { |
| JGitUtils.closeRepo( git ); |
| } |
| } |
| |
| } |
