[kevincox]

I think this would be better the piper+citc. While the virtual filesystem aspect is nice the perforce model is far inferior to git's. (IMO) Of course Google has tools on top of it. But it's not fair to compare a VCS and interface to it to a complete development infrastructure. Hell, with the content addressing of git it would even make it easy to build something similar.

[general_ai]

> perforce model is far inferior to git's

That's just, like, your opinion, man. There are other bits of infra that integrate with it quite nicely, and would integrate with something like Git quite poorly. One of those things is their code review system. The closest thing I could find to it outside Google is Gerrit, but it's a tremendous pain to set up and use, and it's but a pale shadow of Google's internal tool (Critique).

And also, one does not preclude another: Google has a git wrapper on top of Piper, so you can spend your entire Google career not even touching Piper directly if that's what you prefer. And Piper went beyond the "Perforce model" in ways I can't disclose here.

[piotrkaminski]

Check out Reviewable, it's influenced by my fond memories of Critique but designed specifically for git (and GitHub).

[nh2]

Reviewable is amazing, thanks for making that.

I've used lots of review tools and worked a bit on Google's review tool and on ReviewBoard in the past, and Reviewable is better than all of them in my opinion (or at least, better than when I last used the others).

[codesnik]

I wonder how do you know what parts you CAN disclose?

[general_ai]

Whatever is already public. You can watch a video about Piper and some other systems on YouTube, and read about other things from Google's own blogs, papers, etc.