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author | Eelco Dolstra <eelco.dolstra@logicblox.com> | 2010-11-23 16:07:00 +0000 |
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committer | Eelco Dolstra <eelco.dolstra@logicblox.com> | 2010-11-23 16:07:00 +0000 |
commit | c958902d4473e6abec41e383d43c28f7ec674a09 (patch) | |
tree | cc6735be05f4bc0b33d2225fb96d05e80d8ac85b /lib/eval-config.nix | |
parent | fcf53be5bd1ce31bd0862bdeb5144e388a07a4b7 (diff) | |
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* Added an option "nixpkgs.system" to specify the system type for
which NixOS should be built. This is useful in NixOS network specifications, because it allows machines in the network to have different types, e.g., { machine1 = { config, pkgs, ... }: { nixpkgs.system = "i686-linux"; ... other config ... }; machine2 = { config, pkgs, ... }: { nixpkgs.system = "x86_64-linux"; ... other config ... }; } It can also be useful in distributed NixOS tests. svn path=/nixos/trunk/; revision=24823
Diffstat (limited to 'lib/eval-config.nix')
-rw-r--r-- | lib/eval-config.nix | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/eval-config.nix b/lib/eval-config.nix index 8a7b225e8500..d34a73fd1661 100644 --- a/lib/eval-config.nix +++ b/lib/eval-config.nix @@ -11,7 +11,7 @@ , modules }: -let extraArgs_ = extraArgs; pkgs_ = pkgs; in +let extraArgs_ = extraArgs; pkgs_ = pkgs; system_ = system; in rec { @@ -39,7 +39,8 @@ rec { # Import Nixpkgs, allowing the NixOS option nixpkgs.config to # specify the Nixpkgs configuration (e.g., to set package options # such as firefox.enableGeckoMediaPlayer, or to apply global - # overrides such as changing GCC throughout the system). This is + # overrides such as changing GCC throughout the system), and the + # option nixpkgs.system to override the platform type. This is # tricky, because we have to prevent an infinite recursion: "pkgs" # is passed as an argument to NixOS modules, but the value of "pkgs" # depends on config.nixpkgs.config, which we get from the modules. @@ -50,12 +51,13 @@ rec { then pkgs_ else import nixpkgs ( let + system = if nixpkgsOptions.system != "" then nixpkgsOptions.system else system_; nixpkgsOptions = (import ./eval-config.nix { inherit system nixpkgs services extraArgs modules; # For efficiency, leave out most NixOS modules; they don't # define nixpkgs.config, so it's pointless to evaluate them. baseModules = [ ../modules/misc/nixpkgs.nix ]; - pkgs = import nixpkgs { inherit system; config = {}; }; + pkgs = import nixpkgs { system = system_; config = {}; }; }).optionDefinitions.nixpkgs; in { |