| // Copyright (C) 2013 The Android Open Source Project |
| // |
| // Licensed 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. |
| package com.googlesource.gerrit.plugins.github.git; |
| |
| import com.google.gerrit.entities.Project; |
| import com.google.gerrit.extensions.api.GerritApi; |
| import com.google.gerrit.extensions.api.changes.NotifyHandling; |
| import com.google.gerrit.extensions.events.ProjectDeletedListener; |
| import com.google.gerrit.extensions.registration.DynamicSet; |
| import com.google.gerrit.extensions.restapi.ResourceConflictException; |
| import com.google.gerrit.extensions.restapi.RestApiException; |
| import com.google.gerrit.server.git.GitRepositoryManager; |
| import com.google.gerrit.server.project.ProjectCache; |
| import com.google.gerrit.server.util.ManualRequestContext; |
| import com.google.gerrit.server.util.OneOffRequestContext; |
| import com.google.inject.Inject; |
| import com.google.inject.assistedinject.Assisted; |
| import com.googlesource.gerrit.plugins.github.GitHubConfig; |
| import java.io.File; |
| import java.io.IOException; |
| import org.apache.commons.io.FileUtils; |
| import org.eclipse.jgit.api.FetchCommand; |
| import org.eclipse.jgit.api.Git; |
| import org.eclipse.jgit.api.errors.GitAPIException; |
| import org.eclipse.jgit.lib.ProgressMonitor; |
| import org.eclipse.jgit.lib.Repository; |
| import org.eclipse.jgit.lib.RepositoryCache; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class GitCloneStep extends ImportStep { |
| private static final Logger LOG = LoggerFactory.getLogger(GitImporter.class); |
| |
| private final GitHubConfig config; |
| private final File gitDir; |
| private final GerritApi gerritApi; |
| private final OneOffRequestContext context; |
| private final String organisation; |
| private final String repository; |
| private final File destinationDirectory; |
| private final DynamicSet<ProjectDeletedListener> deletedListeners; |
| private final ProjectCache projectCache; |
| private final GitRepositoryManager repoManager; |
| |
| public interface Factory { |
| GitCloneStep create( |
| @Assisted("organisation") String organisation, @Assisted("name") String repository); |
| } |
| |
| @Inject |
| public GitCloneStep( |
| GitHubConfig config, |
| GitHubRepository.Factory gitHubRepoFactory, |
| GerritApi gerritApi, |
| OneOffRequestContext context, |
| DynamicSet<ProjectDeletedListener> deletedListeners, |
| ProjectCache projectCache, |
| GitRepositoryManager repoManager, |
| @Assisted("organisation") String organisation, |
| @Assisted("name") String repository) |
| throws GitException { |
| super(config.gitHubUrl, organisation, repository, gitHubRepoFactory); |
| LOG.debug("GitHub Clone " + organisation + "/" + repository); |
| this.config = config; |
| this.gitDir = config.gitDir.toFile(); |
| |
| this.gerritApi = gerritApi; |
| this.context = context; |
| this.organisation = organisation; |
| this.repository = repository; |
| this.destinationDirectory = prepareTargetGitDirectory(gitDir, organisation, repository); |
| this.deletedListeners = deletedListeners; |
| this.projectCache = projectCache; |
| this.repoManager = repoManager; |
| } |
| |
| private static File prepareTargetGitDirectory(File gitDir, String organisation, String repository) |
| throws GitException { |
| String projectName = organisation + "/" + repository; |
| File repositoryDir = new File(gitDir, projectName + ".git"); |
| if (repositoryDir.exists()) { |
| throw new GitDestinationAlreadyExistsException(projectName); |
| } |
| return repositoryDir; |
| } |
| |
| private void createNewProject() throws GitException { |
| String projectName = organisation + "/" + repository; |
| try (ManualRequestContext requestContext = context.openAs(config.importAccountId)) { |
| gerritApi.projects().create(projectName).get(); |
| } catch (ResourceConflictException e) { |
| throw new GitDestinationAlreadyExistsException(projectName); |
| } catch (RestApiException e) { |
| throw new GitException("Unable to create repository " + projectName, e); |
| } |
| } |
| |
| @Override |
| public void doImport(ProgressMonitor progress) throws GitException { |
| createNewProject(); |
| String sourceUri = getSourceUri(); |
| try (Git git = Git.open(destinationDirectory)) { |
| FetchCommand fetch = git.fetch().setRefSpecs("refs/*:refs/*").setRemote(sourceUri); |
| fetch.setCredentialsProvider(getRepository().getCredentialsProvider()); |
| if (progress != null) { |
| fetch.setProgressMonitor(progress); |
| } |
| LOG.info(sourceUri + "| Clone into " + destinationDirectory); |
| fetch.call(); |
| } catch (IOException | GitAPIException e) { |
| LOG.error("Unable to fetch from {} into {}", sourceUri, destinationDirectory, e); |
| throw new GitCloneFailedException(sourceUri, e); |
| } |
| } |
| |
| private boolean isNotEmpty(File destDirectory) { |
| return destDirectory.listFiles().length > 0; |
| } |
| |
| @Override |
| public boolean rollback() { |
| File gitDirectory = destinationDirectory; |
| if (!gitDirectory.exists()) { |
| return false; |
| } |
| |
| try { |
| String projectName = organisation + "/" + repository; |
| Project.NameKey key = Project.nameKey(projectName); |
| cleanJGitCache(key); |
| FileUtils.deleteDirectory(gitDirectory); |
| projectCache.remove(key); |
| sendProjectDeletedEvent(projectName); |
| return true; |
| } catch (IOException e) { |
| LOG.error("Cannot clean-up output Git directory " + gitDirectory); |
| return false; |
| } |
| } |
| |
| private void cleanJGitCache(Project.NameKey key) throws IOException { |
| try (Repository repository = repoManager.openRepository(key)) { |
| RepositoryCache.close(repository); |
| } |
| } |
| |
| private void sendProjectDeletedEvent(String projectName) { |
| ProjectDeletedListener.Event event = |
| new ProjectDeletedListener.Event() { |
| @Override |
| public String getProjectName() { |
| return projectName; |
| } |
| |
| @Override |
| public NotifyHandling getNotify() { |
| return NotifyHandling.NONE; |
| } |
| }; |
| for (ProjectDeletedListener l : deletedListeners) { |
| try { |
| l.onProjectDeleted(event); |
| } catch (RuntimeException e) { |
| LOG.warn("Failure in ProjectDeletedListener", e); |
| } |
| } |
| } |
| } |