flake.nix

{
  description = "rucksack";

  inputs.nixpkgs.url = "github:msfjarvis/nixpkgs/nixpkgs-unstable";

  inputs.systems.url = "github:msfjarvis/flake-systems";

  inputs.advisory-db.url = "github:rustsec/advisory-db";
  inputs.advisory-db.flake = false;

  inputs.crane.url = "github:ipetkov/crane";

  inputs.devshell.url = "github:numtide/devshell";
  inputs.devshell.inputs.nixpkgs.follows = "nixpkgs";

  inputs.fenix.url = "github:nix-community/fenix";
  inputs.fenix.inputs.nixpkgs.follows = "nixpkgs";

  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.flake-utils.inputs.systems.follows = "systems";

  inputs.flake-compat.url = "github:nix-community/flake-compat";
  inputs.flake-compat.flake = false;

  outputs =
    {
      self,
      nixpkgs,
      advisory-db,
      crane,
      devshell,
      fenix,
      flake-utils,
      ...
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ devshell.overlays.default ];
        };

        rustStable = (import fenix { inherit pkgs; }).fromToolchainFile {
          file = ./rust-toolchain.toml;
          sha256 = "sha256-AJ6LX/Q/Er9kS15bn9iflkUwcgYqRQxiOIL2ToVAXaU=";
        };

        craneLib = (crane.mkLib pkgs).overrideToolchain rustStable;
        commonArgs = {
          src = craneLib.cleanCargoSource ./.;
          buildInputs = [ ];
          nativeBuildInputs = [ ];
          cargoClippyExtraArgs = "--all-targets -- --deny warnings";
        };
        cargoArtifacts = craneLib.buildDepsOnly (commonArgs // { doCheck = false; });

        rucksack = craneLib.buildPackage (
          commonArgs
          // {
            inherit cargoArtifacts;
            doCheck = false;
          }
        );
        rucksack-clippy = craneLib.cargoClippy (
          commonArgs
          // {
            inherit cargoArtifacts;
          }
        );
        rucksack-fmt = craneLib.cargoFmt (commonArgs // { });
        rucksack-audit = craneLib.cargoAudit (commonArgs // { inherit advisory-db; });
        rucksack-nextest = craneLib.cargoNextest (
          commonArgs
          // {
            inherit cargoArtifacts;
            partitions = 1;
            partitionType = "count";
          }
        );
      in
      {
        checks = {
          inherit
            rucksack
            rucksack-audit
            rucksack-clippy
            rucksack-fmt
            rucksack-nextest
            ;
        };

        packages.default = rucksack;

        apps.default = flake-utils.lib.mkApp { drv = rucksack; };

        devShells.default = pkgs.devshell.mkShell {
          bash = {
            interactive = "";
          };

          env = [
            {
              name = "DEVSHELL_NO_MOTD";
              value = 1;
            }
          ];

          packages = with pkgs; [
            bacon
            cargo-dist
            cargo-nextest
            cargo-release
            fenix.packages.${system}.rust-analyzer
            gcc
            rustStable
            watchman
          ];
        };
      }
    );
}