Where are default programs defined?

jtojnar · June 20, 2020, 10:09pm

Looking at

NixOS/nixpkgs/blob/e0ece5aebe886d11c9e14f054e0af3cec3a60636/nixos/default.nix#L7-L10


      
          eval = import ./lib/eval-config.nix {
            inherit system;
            modules = [ configuration ];
          };

and

github.com

NixOS/nixpkgs/blob/e0ece5aebe886d11c9e14f054e0af3cec3a60636/nixos/lib/eval-config.nix#L60


      
                _module.args.pkgs = lib.mkIf (pkgs_ != null) (lib.mkForce pkgs_);
              };
            };
          
          
in rec {
          
          
  # Merge the option definitions in all modules, forming the full
            # system configuration.
            inherit (lib.evalModules {
              inherit prefix check;
              modules = baseModules ++ extraModules ++ [ pkgsModule ] ++ modules;
              args = extraArgs;
              specialArgs =
                { modulesPath = builtins.toString ../modules; } // specialArgs;
            }) config options _module;
          
          
  # These are the extra arguments passed to every module.  In
            # particular, Nixpkgs is passed through the "pkgs" argument.
            extraArgs = extraArgs_ // {
              inherit baseModules extraModules modules;
            };

it appears to just load all modules in module-list.nix so any module that adds to environment.systemPackages would be suspect. Mainly this one:

github.com

NixOS/nixpkgs/blob/e0ece5aebe886d11c9e14f054e0af3cec3a60636/nixos/modules/config/system-path.nix#L10-L45


      
          requiredPackages = map (pkg: setPrio ((pkg.meta.priority or 5) + 3) pkg)
            [ pkgs.acl
              pkgs.attr
              pkgs.bashInteractive # bash with ncurses support
              pkgs.bzip2
              pkgs.coreutils-full
              pkgs.cpio
              pkgs.curl
              pkgs.diffutils
              pkgs.findutils
              pkgs.gawk
              pkgs.stdenv.cc.libc
              pkgs.getent
              pkgs.getconf
              pkgs.gnugrep
              pkgs.gnupatch
              pkgs.gnused
              pkgs.gnutar
              pkgs.gzip
              pkgs.xz

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