nix/flake/devshell.nix


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{ inputs, ... }: {
  imports = [
    inputs.devshell.flakeModule
    inputs.treefmt-nix.flakeModule
    inputs.pre-commit-hooks.flakeModule
  ];

  perSystem =
    { config
    , pkgs
    , ...
    }: {
      devshells.default = {
        name = "world";
        devshell.startup.pre-commit.text = config.pre-commit.installationScript;
        packages = with pkgs; [
          (config.treefmt.build.wrapper)
          python3
          just
        ];
        env = [
          {
            name = "DEVSHELL_NO_MOTD";
            value = "1";
          }
        ];
      };

      treefmt = {
        projectRootFile = ".git/config";

        flakeFormatter = true;
        flakeCheck = true;

        # list of supported programs
        # https://github.com/numtide/treefmt-nix
        programs = {
          nixpkgs-fmt.enable = true;
          shfmt.enable = true;
          taplo.enable = true;
          ruff.enable = true;
          yamlfmt.enable = true;
        };
      };

      pre-commit = {
        check.enable = true;
        settings = {
          hooks = {
            deadnix.enable = true;
            treefmt.enable = true;
          };
        };
      };
    };
}