How to use

RepoCommand$DefaultRemoteReader

in

org.eclipse.jgit.gitrepo

  author = new PersonIdent(repo);
if (callback == null)
  callback = new DefaultRemoteReader();
List<RepoProject> renamedProjects = renameProjects(filteredProjects);

  @Override
  public RemoteFile readFileWithMode(String uri, String ref, String path)
      throws GitAPIException, IOException {
    File dir = FileUtils.createTempDir("jgit_", ".git", null); //$NON-NLS-1$ //$NON-NLS-2$
    try (Git git = Git.cloneRepository().setBare(true).setDirectory(dir)
        .setURI(uri).call()) {
      Repository repo = git.getRepository();
      ObjectId refCommitId = sha1(uri, ref);
      if (refCommitId == null) {
        throw new InvalidRefNameException(MessageFormat
            .format(JGitText.get().refNotResolved, ref));
      }
      RevCommit commit = repo.parseCommit(refCommitId);
      TreeWalk tw = TreeWalk.forPath(repo, path, commit.getTree());
      // TODO(ifrade): Cope better with big files (e.g. using
      // InputStream instead of byte[])
      return new RemoteFile(
          tw.getObjectReader().open(tw.getObjectId(0))
              .getCachedBytes(Integer.MAX_VALUE),
          tw.getFileMode(0));
    } finally {
      FileUtils.delete(dir, FileUtils.RECURSIVE);
    }
  }
}

  author = new PersonIdent(repo);
if (callback == null)
  callback = new DefaultRemoteReader();
List<RepoProject> renamedProjects = renameProjects(filteredProjects);

    author = new PersonIdent(repo);
  if (callback == null)
    callback = new DefaultRemoteReader();
} else
  git = new Git(repo);

  @Override
  public RemoteFile readFileWithMode(String uri, String ref, String path)
      throws GitAPIException, IOException {
    File dir = FileUtils.createTempDir("jgit_", ".git", null); //$NON-NLS-1$ //$NON-NLS-2$
    try (Git git = Git.cloneRepository().setBare(true).setDirectory(dir)
        .setURI(uri).call()) {
      Repository repo = git.getRepository();
      ObjectId refCommitId = sha1(uri, ref);
      if (refCommitId == null) {
        throw new InvalidRefNameException(MessageFormat
            .format(JGitText.get().refNotResolved, ref));
      }
      RevCommit commit = repo.parseCommit(refCommitId);
      TreeWalk tw = TreeWalk.forPath(repo, path, commit.getTree());
      // TODO(ifrade): Cope better with big files (e.g. using
      // InputStream instead of byte[])
      return new RemoteFile(
          tw.getObjectReader().open(tw.getObjectId(0))
              .getCachedBytes(Integer.MAX_VALUE),
          tw.getFileMode(0));
    } finally {
      FileUtils.delete(dir, FileUtils.RECURSIVE);
    }
  }
}

public byte[] readFile(String uri, String ref, String path)
    throws GitAPIException, IOException {
  File dir = FileUtils.createTempDir("jgit_", ".git", null); //$NON-NLS-1$ //$NON-NLS-2$
  Repository repo = Git
      .cloneRepository()
      .setBare(true)
      .setDirectory(dir)
      .setURI(uri)
      .call()
      .getRepository();
  try {
    return readFileFromRepo(repo, ref, path);
  } finally {
    repo.close();
    FileUtils.delete(dir, FileUtils.RECURSIVE);
  }
}