private Git refreshRepository(GitSyncDetails syncDetails, File syncDir)
		throws GitAPIException, InvalidRemoteException, TransportException, IOException,
		WrongRepositoryStateException, InvalidConfigurationException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException {
	Git repo;
	if (!syncDir.exists()) {
		syncDir.mkdirs();
		repo = initWith(Git.cloneRepository(), syncDetails)
			.setURI(syncDetails.getGitUrl())
			.setDirectory(syncDir)
			.setCloneAllBranches(true)
			.setBranch("master")
			.call();
		
		
	} else {
		repo = Git.open(syncDir);
		initWith(repo.pull(), syncDetails)
			.call();
	}
	return repo;
}
 

public static boolean pull(String projectPath, String branch, String user, String pwd) throws IOException, WrongRepositoryStateException, InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException, RefNotAdvertisedException, NoHeadException, TransportException, GitAPIException {

		try (Git git = Git.open(new File(projectPath)) ) {
			UsernamePasswordCredentialsProvider provider = new UsernamePasswordCredentialsProvider(user, pwd);
			git.pull().setRemoteBranchName(branch)
					.setCredentialsProvider(provider)
					.setProgressMonitor(new PullProgressMonitor())
					.call();
		}
		
		return true;
	}
 

private static void pull(final Git git, IProgressMonitor monitor)
		throws GitAPIException, WrongRepositoryStateException,
		InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException, TransportException {

	@SuppressWarnings("restriction")
	ProgressMonitor gitMonitor = (null == monitor) ? createMonitor()
			: new org.eclipse.egit.core.EclipseGitProgressTransformer(monitor);
	pull(git, gitMonitor);
}
 

private static void pull(final Git git, ProgressMonitor monitor)
		throws GitAPIException, WrongRepositoryStateException,
		InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException, TransportException {

	git.pull().setTransportConfigCallback(TRANSPORT_CALLBACK).setProgressMonitor(monitor).call();
}
 

private static void pull(final Git git) throws GitAPIException, WrongRepositoryStateException,
		InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException, TransportException {

	pull(git, (ProgressMonitor) null);
}
 

public void pullFromRepo()
		throws IOException, WrongRepositoryStateException, InvalidConfigurationException, DetachedHeadException,
		InvalidRemoteException, CanceledException, RefNotFoundException, NoHeadException, GitAPIException {
	git.pull().call();
}