由于在jGit中进行了某些提交，如何获取所有更改的文件？

Question

TreeWalk allows to get all changes in single commit or in whole repository and checking changed files for each commit (by RevWalk) works really slow, about 2 minutes. Is there any method to walk through changed files and check in which commit they has been changed last time? Or other faster solution? Here is my code for getting changed files from commit:

TreeWalk treeWalk = prepareTreeWalk(commit, git.getRepository());
List<String> files = new ArrayList<>();
while (treeWalk.next()) {
  if (!hasSimilar(treeWalk)) {
    files.add(treeWalk.getPathString());
  }
}

and for selecting commits (since some special):

return Lists.reverse(StreamSupport.stream(
  git.log()
  .add(git.getRepository().resolve(branch.getName()))
  .call()
  .spliterator(), false)
    .filter(since(sinceCommit::equals))
    .collect(Collectors.toList()));

Answer 1

I know command line below, it will print the output within ms

git format-patch initial-commit --stdout > output.patch