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Why Facebook does not use Git – and why most other devs do • DEVCLASS (devclass.com)
submitted 2 years ago by to c/programming@programming.dev
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  • Facebook does not use Git due to scale issues with their large monorepo, instead opting for Mercurial.
  • Mercurial may be a better option for large monorepos, but Git has made improvements to support them better.
  • Despite some drawbacks, Git usage remains dominant with 93.87% share, due to familiarity, additional tools, and industry trends.
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[–] 1 point 2 years ago

True, git itself can't prevent people from creating a mess of a commit graph.

TBH, lots of build systems mentioned here I've never encountered so far. But this makes it clearer that one can't reason about how viable a "one big monorepo only" approach mighy be by just considering the capabilities of current git, coming from a "manyrepo" mindset. Likely that was the pitfall I fell into coming into this discussion.

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