Sandbox::https://github.com/haskell/stylish-haskell/blob/main/default.nix

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{ pkgs ? import ./haskell-pkgs.nix

, haskellCompiler ? "ghc8107"

pkgs.haskell-nix.cabalProject {

src = pkgs.haskell-nix.haskellLib.cleanGit {

name = "stylish-haskell";

src = ./.;

};

compiler-nix-name = haskellCompiler;

# need to make Cabal reinstallable, otherwise Haskell.nix uses the

# version of Cabal that ships with the compiler even when that would

# violate the constraint in stylish-haskell.cabal

# (eg nix-build failed because it tried to use Cabal-3.2.1.0 while

# stylish-haskell needs Cabal >= 3.4 && < 3.7)

# See haskell-nix issue #1337 for details:

# https://github.com/input-output-hk/haskell.nix/issues/1337

modules = [

({ lib, ... }: {

options.nonReinstallablePkgs = lib.mkOption { apply = lib.remove "Cabal"; };

})

];

}