4a89bcd6a5
This changes the evaluation order for the `depot` argument and ensures it is partially evaluated before the module system starts resolving imports. This way we can import modules from `depot.path` without `depot` having to come from readTree. Fixes b/129. Change-Id: Icf4dd2be15011055dac8b27e991a4ff6a12bf827 Reviewed-on: https://cl.tvl.fyi/c/depot/+/3156 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
52 lines
1.7 KiB
Nix
52 lines
1.7 KiB
Nix
# This file defines the root of all external dependency imports (i.e.
|
|
# third-party code) in the TVL package tree.
|
|
#
|
|
# There are two categories of third-party programs:
|
|
#
|
|
# 1) Programs in nixpkgs, the NixOS package set. For these, you might
|
|
# want to look at //third_party/nixpkgs (for the package set
|
|
# imports) and //third_party/overlays (for modifications in these
|
|
# imported package sets).
|
|
#
|
|
# 2) Third-party software packaged in this repository. This is all
|
|
# other folders below //third_party, other than the ones mentioned
|
|
# above.
|
|
|
|
{ pkgs, ... }:
|
|
|
|
{
|
|
# Expose a partially applied NixOS, expecting an attribute set with
|
|
# a `configuration` key. Exposing it like this makes it possible to
|
|
# modify some of the base configuration used by NixOS.
|
|
#
|
|
# This partially reimplements the code in
|
|
# <nixpkgs/nixos/default.nix> as we need to modify its internals to
|
|
# be able to pass `specialArgs`. We depend on this because `depot`
|
|
# needs to be partially evaluated in NixOS configuration before
|
|
# module imports are resolved.
|
|
nixos = {
|
|
configuration,
|
|
specialArgs ? {},
|
|
system ? builtins.currentSystem,
|
|
...
|
|
}:
|
|
let
|
|
eval = import "${pkgs.path}/nixos/lib/eval-config.nix" {
|
|
inherit specialArgs system;
|
|
modules = [ configuration ];
|
|
};
|
|
|
|
# This is for `nixos-rebuild build-vm'.
|
|
vmConfig = (import "${pkgs.path}/nixos/lib/eval-config.nix" {
|
|
inherit specialArgs system;
|
|
modules = [
|
|
configuration
|
|
"${pkgs.path}/nixos/modules/virtualisation/qemu-vm.nix"
|
|
];
|
|
}).config;
|
|
in {
|
|
inherit (eval) pkgs config options;
|
|
system = eval.config.system.build.toplevel;
|
|
vm = vmConfig.system.build.vm;
|
|
};
|
|
}
|