How to use org.eclipse.jgit.internal.submodule

/**
 * Validate path for a submodule
 *
 * @param path
 *            path of a submodule
 * @throws SubmoduleValidationException
 *             path doesn't look right
 */
public static void assertValidSubmodulePath(String path)
    throws SubmoduleValidationException {
  if (path.startsWith("-")) { //$NON-NLS-1$
    throw new SubmoduleValidationException(
        MessageFormat.format(
            JGitText.get().submodulePathInvalid, path),
        GITMODULES_PATH);
  }
}

for (String subsection :
    c.getSubsections(CONFIG_SUBMODULE_SECTION)) {
  assertValidSubmoduleName(subsection);
    assertValidSubmoduleUri(url);
      CONFIG_SUBMODULE_SECTION, subsection, CONFIG_KEY_PATH);
  if (path != null) {
    assertValidSubmodulePath(path);
throw new SubmoduleValidationException(
    JGitText.get().invalidGitModules,
    GITMODULES_PARSE);

private void checkSubmodules()
    throws IOException {
  ObjectDatabase odb = db.getObjectDatabase();
  if (objectChecker == null) {
    return;
  }
  for (GitmoduleEntry entry : objectChecker.getGitsubmodules()) {
    AnyObjectId blobId = entry.getBlobId();
    ObjectLoader blob = odb.open(blobId, Constants.OBJ_BLOB);
    try {
      SubmoduleValidator.assertValidGitModulesFile(
          new String(blob.getBytes(), UTF_8));
    } catch (LargeObjectException | SubmoduleValidationException e) {
      throw new IOException(e);
    }
  }
}

  SubmoduleValidator.assertValidSubmoduleName(name);
  SubmoduleValidator.assertValidSubmodulePath(path);
  SubmoduleValidator.assertValidSubmoduleUri(uri);
} catch (SubmoduleValidator.SubmoduleValidationException e) {
  throw new IllegalArgumentException(e.getMessage());

private void checkGitModules(ProgressMonitor pm, FsckError errors)
    throws IOException {
  pm.beginTask(JGitText.get().validatingGitModules,
      objChecker.getGitsubmodules().size());
  for (GitmoduleEntry entry : objChecker.getGitsubmodules()) {
    AnyObjectId blobId = entry.getBlobId();
    ObjectLoader blob = objdb.open(blobId, Constants.OBJ_BLOB);
    try {
      SubmoduleValidator.assertValidGitModulesFile(
          new String(blob.getBytes(), UTF_8));
    } catch (SubmoduleValidationException e) {
      CorruptObject co = new FsckError.CorruptObject(
          blobId.toObjectId(), Constants.OBJ_BLOB,
          e.getFsckMessageId());
      errors.getCorruptObjects().add(co);
    }
    pm.update(1);
  }
  pm.endTask();
}

for (String subsection :
    c.getSubsections(CONFIG_SUBMODULE_SECTION)) {
  assertValidSubmoduleName(subsection);
    assertValidSubmoduleUri(url);
      CONFIG_SUBMODULE_SECTION, subsection, CONFIG_KEY_PATH);
  if (path != null) {
    assertValidSubmodulePath(path);
throw new SubmoduleValidationException(
    JGitText.get().invalidGitModules,
    GITMODULES_PARSE);

  SubmoduleValidator.assertValidSubmoduleName(name);
  SubmoduleValidator.assertValidSubmodulePath(path);
  SubmoduleValidator.assertValidSubmoduleUri(uri);
} catch (SubmoduleValidator.SubmoduleValidationException e) {
  throw new IllegalArgumentException(e.getMessage());

private void checkGitModules(ProgressMonitor pm, FsckError errors)
    throws IOException {
  pm.beginTask(JGitText.get().validatingGitModules,
      objChecker.getGitsubmodules().size());
  for (GitmoduleEntry entry : objChecker.getGitsubmodules()) {
    AnyObjectId blobId = entry.getBlobId();
    ObjectLoader blob = objdb.open(blobId, Constants.OBJ_BLOB);
    try {
      SubmoduleValidator.assertValidGitModulesFile(
          new String(blob.getBytes(), UTF_8));
    } catch (SubmoduleValidationException e) {
      CorruptObject co = new FsckError.CorruptObject(
          blobId.toObjectId(), Constants.OBJ_BLOB,
          e.getFsckMessageId());
      errors.getCorruptObjects().add(co);
    }
    pm.update(1);
  }
  pm.endTask();
}

/**
 * Validate URI for a submodule
 *
 * @param uri
 *            uri of a submodule
 * @throws SubmoduleValidationException
 *             uri doesn't seem valid
 */
public static void assertValidSubmoduleUri(String uri)
    throws SubmoduleValidationException {
  if (uri.startsWith("-")) { //$NON-NLS-1$
    throw new SubmoduleValidationException(
        MessageFormat.format(
            JGitText.get().submoduleUrlInvalid, uri),
        GITMODULES_URL);
  }
}

private void checkSubmodules()
    throws IOException {
  ObjectDatabase odb = db.getObjectDatabase();
  if (objectChecker == null) {
    return;
  }
  for (GitmoduleEntry entry : objectChecker.getGitsubmodules()) {
    AnyObjectId blobId = entry.getBlobId();
    ObjectLoader blob = odb.open(blobId, Constants.OBJ_BLOB);
    try {
      SubmoduleValidator.assertValidGitModulesFile(
          new String(blob.getBytes(), UTF_8));
    } catch (LargeObjectException | SubmoduleValidationException e) {
      throw new IOException(e);
    }
  }
}

throw new SubmoduleValidationException(MessageFormat
    .format(JGitText.get().invalidNameContainsDotDot, name),
    GITMODULES_NAME);
throw new SubmoduleValidationException(
    MessageFormat.format(
        JGitText.get().submoduleNameInvalid, name),

/**
 * Validate path for a submodule
 *
 * @param path
 *            path of a submodule
 * @throws SubmoduleValidationException
 *             path doesn't look right
 */
public static void assertValidSubmodulePath(String path)
    throws SubmoduleValidationException {
  if (path.startsWith("-")) { //$NON-NLS-1$
    throw new SubmoduleValidationException(
        MessageFormat.format(
            JGitText.get().submodulePathInvalid, path),
        GITMODULES_PATH);
  }
}

/**
 * Validate URI for a submodule
 *
 * @param uri
 *            uri of a submodule
 * @throws SubmoduleValidationException
 *             uri doesn't seem valid
 */
public static void assertValidSubmoduleUri(String uri)
    throws SubmoduleValidationException {
  if (uri.startsWith("-")) { //$NON-NLS-1$
    throw new SubmoduleValidationException(
        MessageFormat.format(
            JGitText.get().submoduleUrlInvalid, uri),
        GITMODULES_URL);
  }
}

throw new SubmoduleValidationException(MessageFormat
    .format(JGitText.get().invalidNameContainsDotDot, name),
    GITMODULES_NAME);
throw new SubmoduleValidationException(
    MessageFormat.format(
        JGitText.get().submoduleNameInvalid, name),