Yeah, according to this Wired article it's called "Piper", and they transitioned to it from Perforce: http://www.wired.com/2015/09/google-2-billion-lines-codean

Yeah, according to this Wired article it's called "Piper", and they transitioned to it from Perforce: http://www.wired.com/2015/09/google-2-billion-lines-codeand-one-place/ http://www.wired.com/2015/09/google-2-billion-lines-codeand-...