[QUESTION]: How to get uploading git objects via a git command in a pre-receive-hook

Hi,

I want to check the uploaded Git LFS objects in the pre-receive hook of the Git server. Assuming that the Git repository during the upload process is A.git, my current approach is to create an empty repository B.git and then use GIT_ALTERNATE_OBJECT_DIRECTORIES="A.git/objects/tmp_objdir-incoming-**" followed by executing git -C B.git cat-file --batch-check --batch-all-objects to obtain the objects being uploaded, then filter out the LFS objects. This process is very time-consuming, taking roughly more than 10 seconds. I wonder if there's a simpler method?

Thanks. -- ZheNing Hu