37 lines
1.4 KiB
Nix
37 lines
1.4 KiB
Nix
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{
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# inspired by: https://serokell.io/blog/practical-nix-flakes#packaging-existing-applications
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description = "A Hello World in Haskell with a dependency and a devShell";
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inputs.nixpkgs.url = "nixpkgs";
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outputs = { self, nixpkgs }:
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let
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supportedSystems = [ "x86_64-linux" "x86_64-darwin" ];
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forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
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nixpkgsFor = forAllSystems (system: import nixpkgs {
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inherit system;
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overlays = [ self.overlay ];
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});
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in
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{
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overlay = (final: prev: {
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interview-in = final.haskellPackages.callCabal2nix "in23" ./. {};
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});
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packages = forAllSystems (system: {
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interview-in = nixpkgsFor.${system}.interview-in;
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});
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defaultPackage = forAllSystems (system: self.packages.${system}.interview-in);
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checks = self.packages;
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devShell = forAllSystems (system: let haskellPackages = nixpkgsFor.${system}.haskellPackages;
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in haskellPackages.shellFor {
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packages = p: [self.packages.${system}.interview-in];
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withHoogle = true;
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buildInputs = with haskellPackages; [
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haskell-language-server
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ghcid
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cabal-install
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];
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# Change the prompt to show that you are in a devShell
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shellHook = "export PS1='\\e[1;34mdev > \\e[0m'";
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});
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};
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}
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