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flake.nix
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flake.nix
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{
description = "A servant template";
inputs = {
pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
nixpkgs.url = "nixpkgs/nixos-unstable";
flake-utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, flake-utils, pre-commit-hooks }:
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = import nixpkgs {
inherit system;
config.allowBroken = true;
};
stack-nix = pkgs.symlinkJoin {
name = "stack";
paths = [ pkgs.stack ];
buildInputs = [ pkgs.makeWrapper ];
postBuild = ''
wrapProgram $out/bin/stack \
--add-flags "\
--nix \
--no-nix-pure \
--nix-shell-file=nix/stack-integration.nix \
"
'';
};
in
{
checks = {
pre-commit-check = pre-commit-hooks.lib.${system}.run {
src = ./.;
hooks = {
hlint.enable = true;
hpack.enable = true;
ormolu.enable = true;
nixpkgs-fmt.enable = true;
};
};
};
devShells.default = pkgs.mkShell {
inherit (self.checks.${system}.pre-commit-check) shellHook;
buildInputs = with pkgs; [
elmPackages.elm
elmPackages.elm-format
elmPackages.elm-live
elmPackages.elm-language-server
haskellPackages.haskell-language-server
haskellPackages.hspec-discover
haskellPackages.ormolu
jq
nodejs
postgresql
stack-nix
toml2json
watchexec
zlib
];
};
});
}