• Introduction
• GHC Support Matrix
• Shells
  • Default
  • LiquidHaskell

This packages provides lightweight nix shells for general haskell development with cabal.

The below matrix shows how well a particular GHC version is supported. Legend:

• 🌕: Support exists with good caching.
• 🌓: Support exists with poor caching.
• 🌑: Support does not exist.

GHC versions that support all tools and have fast caching are bolded. In the interest of brevity, only the latest 3 major versions are listed. Older versions are listed in the collapsed table below.

This section lists the provided shells. For shells with arguments, the default value (if any) is listed in parentheses.

• apply-refact (false)
• fourmolu (false)
• ghc-vers
• ormolu (false)
• hlint (false)
• hls (false)

Attr: default

Description: Nix shell for general haskell development. Most packages can use this shell. Includes cabal and ghc. Note that there is no guarantee every dev tool will work with every ghc-vers. In particular, there will often be a lag time before the latest GHCs are fully supported.

The default ghc is the latest version that works with every tool and has decent nix caching.

Args:

• apply-refact
• fourmolu
• ghc-vers (ghc982)
• hlint
• hls
• ormolu

Usage:

nix-shell https://github.com/tbidne/hs-nix-shells/archive/main.tar.gz -A default

nix-shell https://github.com/tbidne/hs-nix-shells/archive/main.tar.gz -A default \
  --argstr ghc-vers ghc925 \
  --arg hls true

Attr: liquidhaskell

Description: Nix shell for LiquidHaskell. Includes cabal, ghc, and the z3 smt solver.

Args:

• ghc-vers
• hlint
• hls

Usage:

nix-shell https://github.com/tbidne/hs-nix-shells/archive/main.tar.gz -A liquidhaskell