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F8 2015 - Big Code: Developer Infrastructure at Facebook's Scale

Meta Developers · 98.8K views · 2015-03-28 · 46:22

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Overview

An F8 2015 talk touring the tool-chain Facebook uses to let thousands of engineers build mobile apps, including its move to Mercurial, an Atom-based IDE and continuous integration.

On Hacker News

HN points to it as a look at developer infrastructure at large scale, with speakers covering source control and CI test selection.

Recommended by 1 HN people across 1 months · HN mentions 2015–2016

Topics

Testing, debugging & developer toolsSoftware practice, open source & careers
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facebookmercurialcontinuous integrationmonorepodeveloper productivity

What people said

Corrado · 2015-09 · Recommendation

I think the best part of this article was the small link to the F8 2015 "Big Code" video [0] where they go into detail about switching from Git to Mercurial, building their own IDE around Atom, and detailing their continuous integration process. It's a long video but it's very watchable using the YouTube speed multiplier. :) [0] [VIDEO]

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mgorven · 2016-04 · Reference

It's an internal system, but it was discussed at F8 last year. Here's the video ( [VIDEO] ) and someone's notes on it ( [LINK] ).

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LegNeato · 2015-10 · Reference

Facebook does this to scale their tests, you can hear Katie Coons talking about it in CI at the end of [VIDEO] . There are also rules that say "if you changed this file, run all tests" for things like CI config and such. Also, the build tool Buck ( [LINK] ) enables this because it knows the graph and associates tests with the code they test...so you even get this test minimization locally as a developer (that is, outside CI) for free. I'm sure Bazel likely has a similar feature too.

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Sources

Video by Meta Developers, played through YouTube.

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