I want a VCS that treats code as an AST not as text because: That way meaningless white-space changes, wouldn't cause a diff. Renaming a function would be just

I want a VCS that treats code as an AST not as text because: That way meaningless white-space changes, wouldn't cause a diff. Renaming a function would be just that a rename, not a 100 lines with + and -. Where every commit is recorded (ala Fossil)... but where a set of commits can be seen as if was just one. (So that a meaningful set can be seen as what it was).