flake.nix

# This flake was initially generated by fh, the CLI for FlakeHub (version 0.1.11)
{
  # Flake inputs
  inputs = {
    flake-schemas.url = "https://flakehub.com/f/DeterminateSystems/flake-schemas/*.tar.gz";

    # track nix-unstable
    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/*.tar.gz";

    # Seamless integration of https://pre-commit.com git hooks with Nix
    pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
  };

  # Flake outputs that other flakes can use
  outputs = {
    self,
    flake-schemas,
    nixpkgs,
    pre-commit-hooks,
  }: let
    # Helpers for producing system-specific outputs
    supportedSystems = ["x86_64-linux"];
    forEachSupportedSystem = f:
      nixpkgs.lib.genAttrs supportedSystems (
        system:
          f {
            pkgs = import nixpkgs {inherit system;};
            inherit system;
          }
      );
  in {
    # Schemas tell Nix about the structure of your flake's outputs
    schemas = flake-schemas.schemas;

    checks = forEachSupportedSystem (
      {system, ...}: {
        # check that the code complies with a minimum standard use `--no-verify`
        # to bypass this check when committing or pushing code
        pre-commit-check = pre-commit-hooks.lib.${system}.run {
          src = ./.;
          hooks = {
            alejandra = {
              enable = true;
              excludes = ["vendor"];
            };
            deadnix = {
              enable = true;
              excludes = ["vendor"];
            };
            gofmt = {
              enable = true;
              excludes = ["vendor"];
            };
            golangci-lint = {
              enable = true;
              excludes = ["vendor"];
            };
            govet = {
              enable = true;
              excludes = ["vendor"];
            };
            gotest = {
              enable = true;
              excludes = ["vendor"];
            };
          };
        };
      }
    );

    # Development environments
    devShells = forEachSupportedSystem (
      {
        pkgs,
        system,
      }: {
        default = pkgs.mkShell {
          buildInputs = self.checks.${system}.pre-commit-check.enabledPackages;
          # Pinned packages available in the environment
          packages = with pkgs; [
            buf
            golines
          ];
          shellHook = self.checks.${system}.pre-commit-check.shellHook;
          # option needed for debugging
          hardeningDisable = ["all"];
          env = {
            CGO_CFLAGS = "-Wno-error";
          };
        };
      }
    );
  };
}