devshell/modules/back-compat.nix at 16d09e5972dfee0950800e691520b7b739d53df3 · phanirithvij/devshell · GitHub

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{
  lib,
  pkgs,
  config,
  ...
}:
# Avoid breaking back-compat for now.
let
  # Because we want to be able to push pure JSON-like data into the
  # environment.
  strOrPackage = import ../nix/strOrPackage.nix { inherit lib pkgs; };

  inherit (lib)
    types
    mkOption
    noDepEntry
    ;
in
{
  options = {
    bash.extra = mkOption {
      internal = true;
      type = types.lines;
      default = "";
    };

    bash.interactive = mkOption {
      internal = true;
      type = types.lines;
      default = "";
    };

    motd = mkOption {
      internal = true;
      type = types.nullOr types.str;
      default = null;
    };

    name = mkOption {
      internal = true;
      type = types.nullOr types.str;
      default = null;
    };

    packages = mkOption {
      internal = true;
      type = types.listOf strOrPackage;
      default = [ ];
    };

    packagesFrom = mkOption {
      internal = true;
      type = types.listOf strOrPackage;
      default = [ ];
    };
  };

  # Copy the values over to the devshell module
  config.devshell =
    {
      packages = config.packages;
      packagesFrom = config.packagesFrom;
      startup.bash_extra = noDepEntry config.bash.extra;
      interactive.bash_interactive = noDepEntry config.bash.interactive;
    }
    // (lib.optionalAttrs (config.motd != null) { motd = config.motd; })
    // (lib.optionalAttrs (config.name != null) { name = config.name; });
}