flake.nix

{
  description = "A Nix-flake-based Go development environment";

  # GitHub URLs for the Nix inputs we're using
  inputs = {
    # Simply the greatest package repository on the planet
    nixpkgs.url = "github:NixOS/nixpkgs";
    # A set of helper functions for using flakes
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let pkgs = import nixpkgs { inherit system; };
      in {
        devShells = {
          default = pkgs.mkShell {
            # Packages included in the environment
            buildInputs = with pkgs; [
              # Go version 1.18
              go_1_18

              # goimports, godoc, etc.
              gotools

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

              # The Go language server (for IDEs and such)
              gopls

              # https://pkg.go.dev/github.com/ramya-rao-a/go-outline
              go-outline

              # https://github.com/uudashr/gopkgs
              gopkgs
            ];

            # Run when the shell is started up
            shellHook = ''
              ${pkgs.go_1_18}/bin/go version
            '';
          };
        };
      });
}