Vcs.Log
A log is a complete listing of the structure of the dag.
It contains all the commits, along with the parents of each commit.
module Line : sig ... end
type t = Line.t Base.list
include Ppx_compare_lib.Equal.S with type t := t
val equal : t Base__Ppx_compare_lib.equal
val sexp_of_t : t -> Sexplib0.Sexp.t
val roots : t -> Rev.t Base.list
Return the list of all init commits.