git lfs post-commit
Responds to Git post-commit events. It makes sure that any files which are marked as lockable by git lfs track are read-only in the working copy, if not currently locked by the local user.
Where the git lfs post-merge command, which has a similar purpose, must examine all files in the working copy, git lfs post-commit can limit itself checking only those files which have changed in HEAD. It primarily handles newly added lockable files which have not yet been made read-only.
Part of the git-lfs(1) suite.