I worked on code.google.com, i can tell you the are 100% unrelated. piper grew out of a need to scale the source control system the initial internal repositori

I worked on code.google.com, i can tell you the are 100% unrelated. piper grew out of a need to scale the source control system the initial internal repositories were using code.google.com was a completely separate thing supporting completely different version control models, and a very different scale (very large number of small repositories, vs very small number of very large repositories)