Rev_parse (vcs-git-eio.Vcs_git_eio.Impl.Rev

val current_branch : 
  t ->
  repo_root:Vcs.Repo_root.t ->
  Vcs.Branch_name.t Base.Or_error.t

val current_revision : 
  t ->
  repo_root:Vcs.Repo_root.t ->
  Vcs.Rev.t Base.Or_error.t