flake.nix

{
  description = "PND backend dev environment";

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

  outputs = {
    self,
    nixpkgs,
  }: let
    goVersion = 22; # Change this to update the whole stack
    overlays = [(final: prev: {go = prev."go_1_${toString goVersion}";})];
    supportedSystems = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
    forEachSupportedSystem = f:
      nixpkgs.lib.genAttrs supportedSystems (system:
        f {
          pkgs = import nixpkgs {inherit overlays system;};
        });
  in {
    devShells = forEachSupportedSystem ({pkgs}: {
      default = pkgs.mkShell {
        packages = with pkgs; [
          # go (specified by overlay)
          go_1_22

          # goimports, godoc, etc.
          gotools

          # https://github.com/mvdan/gofumpt
          gofumpt

          # https://github.com/segmentio/golines
          golines

          # https://github.com/golangci/golangci-lint
          golangci-lint

          # https://github.com/golang-migrate/migrate
          go-migrate

          # https://github.com/swaggo/swag
          go-swag

          # https://github.com/sqlc-dev/sqlc
          sqlc
        ];
      };
    });
  };
}