/**
 * Obtain information about all submodules of the Git repository at the given path. Returns an empty map in case the
 * repository does not include submodules. Throws exceptions in case of error.
 */
public static Map<String, SubmoduleStatus> getSubmodules(final Path localClonePath) {

	if (!isValidLocalClonePath(localClonePath)) {
		throw new IllegalArgumentException("invalid localClonePath: " + localClonePath);
	}

	try (final Git git = open(localClonePath.toFile())) {
		return git.submoduleStatus().call();
	} catch (Exception e) {
		LOGGER.error(e.getClass().getSimpleName()
				+ " while trying to obtain status of all submodules"
				+ " of repository '" + localClonePath
				+ "':" + e.getLocalizedMessage());
		Throwables.throwIfUnchecked(e);
		throw new RuntimeException(e);
	}
}
 

@Override
protected void run () throws GitException {
    Repository repository = getRepository();
    File workTree = repository.getWorkTree();
    org.eclipse.jgit.api.SubmoduleStatusCommand cmd = new Git(repository).submoduleStatus();
    for (String path : Utils.getRelativePaths(workTree, roots)) {
        cmd.addPath(path);
    }
    try {
        Map<String, SubmoduleStatus> result = cmd.call();
        GitClassFactory fac = getClassFactory();
        for (Map.Entry<String, SubmoduleStatus> e : result.entrySet()) {
            File root = new File(workTree, e.getKey());
            statuses.put(root, fac.createSubmoduleStatus(e.getValue(), root));
        }
    } catch (GitAPIException | JGitInternalException ex) {
        throw new GitException(ex);
    }
}
 

@Override
public void printSubmoduleStatus() {
    Repository repository = null;
    try {
        repository = getRepository(workingDir);
        Git git = new Git(repository);
        SubmoduleStatusCommand submoduleStatus = git.submoduleStatus();
        Map<String, SubmoduleStatus> submoduleStatusMap = submoduleStatus.call();
        for (String submoduleFolder : submoduleStatusMap.keySet()) {
            // print
        }
    } catch (Exception e) {
        throw new RuntimeException("sub-module print status failed", e);
    } finally {
        if (repository != null) {
            repository.close();
        }
    }
}
 

public static boolean updateSubmodules(Repository repo) throws GitAPIException {
	SubmoduleInitCommand init = new SubmoduleInitCommand(repo);
	init.call();
	SubmoduleUpdateCommand update = new SubmoduleUpdateCommand(repo);
	Collection<String> updated = update.call();
	SubmoduleStatusCommand status = new SubmoduleStatusCommand(repo);
	Map<String, SubmoduleStatus> statusResult = status.call();
	return updated.size() == statusResult.size();
}
 

public static boolean syncSubmodules(Repository repo) throws GitAPIException {
	SubmoduleSyncCommand sync = new SubmoduleSyncCommand(repo);
	Map<String, String> synced = sync.call();
	SubmoduleStatusCommand status = new SubmoduleStatusCommand(repo);
	Map<String, SubmoduleStatus> statusResult = status.call();
	return synced.size() == statusResult.size();
}
 

@Override
public GitSubmoduleStatus createSubmoduleStatus (SubmoduleStatus status, File folder) {
    return new GitSubmoduleStatus(status, folder);
}
 

GitSubmoduleStatus (SubmoduleStatus delegate, File folder) {
    this.delegate = delegate;
    this.folder = folder;
    this.statusType = parseStatus(delegate.getType());
}
 

public abstract GitSubmoduleStatus createSubmoduleStatus (SubmoduleStatus status, File folder);