Examples with JGitRemoteInfoCommand org.apache.maven.scm.provider.git.jgit.command.remoteinfo.JGitRemoteInfoCommand used on opensource projects

Example 1 with JGitRemoteInfoCommand

use of org.apache.maven.scm.provider.git.jgit.command.remoteinfo.JGitRemoteInfoCommand in project maven-scm by apache.

the class JGitCheckOutCommand method executeCheckOutCommand.

/**
 * 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, boolean shallow) 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());
            CloneCommand command = Git.cloneRepository().setURI(repository.getFetchUrl());
            command.setCredentialsProvider(credentials).setBranch(branch).setDirectory(fileSet.getBasedir());
            command.setProgressMonitor(monitor);
            git = command.call();
        }
        JGitRemoteInfoCommand remoteInfoCommand = new JGitRemoteInfoCommand();
        remoteInfoCommand.setLogger(getLogger());
        RemoteInfoScmResult result = remoteInfoCommand.executeRemoteInfoCommand(repository, fileSet, null);
        if (git == null) {
            // deliberately not using JGitUtils.openRepo(), the caller told us exactly where to checkout
            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());
        // drop the first empty tree, which we do not need here
        walk.reset();
        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);
    }
}