private void doRollback()

in ddm-rrm-git-integration/src/main/java/com/epam/digital/data/platform/management/gitintegration/service/JGitServiceImpl.java [467:491]

• 25 lines of code
• 6 McCabe index (conditional complexity)

  private void doRollback(Git git, String filePath, File repositoryDirectory) {
    try {
      var lastCommit = git.log().call().iterator().next();
      var parentCommit = lastCommit.getParent(0);
      var isFileExistsInLastCommit = checkFileExistsInCommit(git, filePath, lastCommit);
      var isFileExistsInParentCommit = checkFileExistsInCommit(git, filePath, parentCommit);
      if (!isFileExistsInLastCommit && !isFileExistsInParentCommit) {
        throw new GitFileNotFoundException(
            String.format("Rollback failed, file %s doesn't exist", filePath), filePath);
      }
      if (isFileExistsInParentCommit) {
        log.debug("Revert changed file to state as parent commit");
        rollbackFileToParentCommit(git, filePath, parentCommit);
      } else {
        log.debug("Delete file because the parent commit does not contain it");
        var file = new File(repositoryDirectory, FilenameUtils.normalize(filePath));
        var isDeleted = file.delete();
        log.debug("The file {} been deleted", isDeleted ? "has" : "has not");
      }
    } catch (GitAPIException e) {
      throw new IllegalStateException(
          String.format("Log command doesn't expected to throw such exception: %s", e.getMessage()),
          e);
    }
  }