ormolu

Tech stack & purpose

Ormolu is a formatter for Haskell source code created by Tweag that uses GHC's own parser and aims for a single, non-configurable formatting style with minimal diffs and idempotent output. The project is built in Haskell and includes a browser-based interface called Ormolu Live using the Miso framework with GHC's WASM backend, as well as a utility called extract-hackage-info that builds a database of operator fixities from Hackage packages to ensure correct formatting of operator chains. The formatter integrates with popular editors including Emacs and VS Code, supports the Haskell Language Server, and can be used as a library via its top-level Ormolu module.

Community & reference links

• COMMITHASH--ormolu-live.netlify.app
• github.com/fourmolu/fourmolu
• github.com/haskell-actions/run-ormolu
• github.com/monadfix/ormolu-live
• github.com/sbdchd/neoformat
• github.com/sdiehl/vim-ormolu
• github.com/tweag/ormolu/blob/master/CONTRIBUTING.md
• github.com/tweag/ormolu/blob/master/DESIGN.md#cpp
• github.com/tweag/ormolu/releases
• github.com/vyorkin/ormolu.el
• hackage.haskell.org/package/haskell-src-exts
• hackage.haskell.org/package/ormolu
• Haskell Language Server
• marketplace.visualstudio.com/items?itemName=sjurmillidahl.ormolu-vscode
• ormolu-live.tweag.io
• PVP
• stackage.org/lts/package/ormolu
• stackage.org/nightly/package/ormolu

Languages

Contributors (top 30 of 62)

• 
  Mark Karpov209 commits · 478 followers
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  Mark Karpov173 commits · 478 followers
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  amesgen92 commits · 55 followers
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  Utku Demir57 commits · 159 followers
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  amesgen55 commits · 55 followers
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  Brandon Chinn31 commits · 18 followers
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  dependabot[bot]30 commits · 0 followers
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  Facundo Domínguez20 commits · 91 followers
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  yumiova13 commits · 2 followers
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  Basile Henry11 commits · 66 followers
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  Shinya Yamaguchi9 commits · 0 followers
• sphaso8 commits
• Thomas BAGREL6 commits
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  Ru Horlick6 commits · 34 followers
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  João Santos Reis5 commits · 23 followers
• Yuriy Syrovetskiy5 commits
• Matthew Healy4 commits
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  Robert4 commits · 44 followers
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  Vladislav Zavialov4 commits · 234 followers
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  Mathieu Boespflug3 commits · 173 followers
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  Michael Peyton Jones3 commits · 268 followers
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  Simon Hengel3 commits · 281 followers
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  Dmitry Ivanov3 commits · 81 followers
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  Mitchell Dalvi Rosen3 commits · 162 followers
• Avi Dessauer3 commits
• PanAeon2 commits
• tomjaguarpaw2 commits
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  Felix Yan2 commits · 3,361 followers
• Joe Hermaszewski2 commits
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  Jens Petersen2 commits · 96 followers