Hacker News Reader

> neither Google nor Facebook use git

What do Google and FB use as their VCS? Also, any source? I don't mean this to be an attack, I am just genuinely amazed by the statement.

View on HN

Google uses a custom implementation of the Perforce interface called Piper. Google has looked at git and mercurial, but have concluded that they can't scale to the level they need it to. Read more about it here:

https://cacm.acm.org/magazines/2016/7/204032-why-google-stor...

Facebook uses Mercurial.

Reply on news.ycombinator.com