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Merge pull request #46341 from obsidiansystems/fix-46320

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nixpkgs module: Fix defaulting of `localSystem` and `system`
This commit is contained in:
Graham Christensen 2018-09-08 09:16:41 -04:00 committed by GitHub
commit ca7391daf2
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2 changed files with 13 additions and 5 deletions
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6
nixos/lib/eval-config.nix
View File

@ -36,7 +36,11 @@ let
_file = ./eval-config.nix;
key = _file;
config = {
nixpkgs.localSystem = lib.mkDefault { inherit system; };
# Explicit `nixpkgs.system` or `nixpkgs.localSystem` should override
# this. Since the latter defaults to the former, the former should
# default to the argument. That way this new default could propagate all
# they way through, but has the last priority behind everything else.
nixpkgs.system = lib.mkDefault system;
_module.args.pkgs = lib.mkIf (pkgs_ != null) (lib.mkForce pkgs_);
};
};

12
nixos/modules/misc/nixpkgs.nix
View File

@ -62,12 +62,11 @@ in
pkgs = mkOption {
defaultText = literalExample
''import "''${nixos}/.." {
inherit (config.nixpkgs) config overlays localSystem crossSystem;
inherit (cfg) config overlays localSystem crossSystem;
}
'';
default = import ../../.. {
localSystem = { inherit (cfg) system; } // cfg.localSystem;
inherit (cfg) config overlays crossSystem;
inherit (cfg) config overlays localSystem crossSystem;
};
type = pkgsType;
example = literalExample ''import <nixpkgs> {}'';
@ -140,8 +139,11 @@ in
localSystem = mkOption {
type = types.attrs; # TODO utilize lib.systems.parsedPlatform
default = { system = builtins.currentSystem; };
default = { inherit (cfg) system; };
example = { system = "aarch64-linux"; config = "aarch64-unknown-linux-gnu"; };
# Make sure that the final value has all fields for sake of other modules
# referring to this. TODO make `lib.systems` itself use the module system.
apply = lib.systems.elaborate;
defaultText = literalExample
''(import "''${nixos}/../lib").lib.systems.examples.aarch64-multiplatform'';
description = ''
@ -180,6 +182,7 @@ in
system = mkOption {
type = types.str;
example = "i686-linux";
default = { system = builtins.currentSystem; };
description = ''
Specifies the Nix platform type on which NixOS should be built.
It is better to specify <code>nixpkgs.localSystem</code> instead.
@ -196,6 +199,7 @@ in
</programlisting>
See <code>nixpkgs.localSystem</code> for more information.
Ignored when <code>nixpkgs.localSystem</code> is set.
Ignored when <code>nixpkgs.pkgs</code> is set.
'';
};