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by numbsafari 948 days ago
That’s 2014 vintage. Is it still true?
2 comments

Meta uses https://github.com/facebook/sapling see: https://engineering.fb.com/2022/11/15/open-source/sapling-so...

It’s an extension from Mercurial as the blog post states.

Yup! In fact Meta’s implementation is open sourced as Sapling SCM and includes both Mercurial and Git support[1]. Internally the main repository use Mercurial although I believe a few legacy projects still use git.

[1] https://sapling-scm.com/

From the documentation, it seems like there is 0 mercurial support. It's its own separate version control system that diverged years ago. You can either use the sapling scm client or git.
Oh I didn’t realize. Internally we use `hg` commands for everything so I guess it’s just the internal version that supports mercurial