nixpkgs/default.nix
Rickard Nilsson f9b05ac1fe Parameterise the path to nixpkgs.
This makes it possible to build several NixOS systems that use different
nixpkgs in the same nix-build invocation. Today, you can't do that since
the <nixpkgs> path reference is hard-coded in lib/eval-config.nix.
2013-01-28 16:11:44 +01:00

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1 KiB
Nix

{ configuration ? import ./lib/from-env.nix "NIXOS_CONFIG" <nixos-config>
, system ? builtins.currentSystem
, nixpkgs ? <nixpkgs>
}:
let
eval = import ./lib/eval-config.nix {
inherit system nixpkgs;
modules = [ configuration ];
};
inherit (eval) config pkgs;
# This is for `nixos-rebuild build-vm'.
vmConfig = (import ./lib/eval-config.nix {
inherit system nixpkgs;
modules = [ configuration ./modules/virtualisation/qemu-vm.nix ];
}).config;
# This is for `nixos-rebuild build-vm-with-bootloader'.
vmWithBootLoaderConfig = (import ./lib/eval-config.nix {
inherit system nixpkgs;
modules =
[ configuration
./modules/virtualisation/qemu-vm.nix
{ virtualisation.useBootLoader = true; }
];
}).config;
in
{
inherit eval config;
system = config.system.build.toplevel;
vm = vmConfig.system.build.vm;
vmWithBootLoader = vmWithBootLoaderConfig.system.build.vm;
# The following are used by nixos-rebuild.
nixFallback = pkgs.nixUnstable;
tests = config.tests;
}