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Use only one merge to compute option definitions and option declarations.

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svn path=/nixos/trunk/; revision=17165
This commit is contained in:
Nicolas Pierron 2009-09-15 14:09:11 +00:00
parent 36573e5e5c
commit dd40d6196b
1 changed files with 10 additions and 15 deletions
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25
lib/eval-config.nix
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@ -19,10 +19,12 @@ rec {
configComponents = modules ++ baseModules;
# Merge the option definitions in all modules, forming the full
# system configuration. This is called "configFast" because it's
# not checked for undeclared options.
configFast =
pkgs.lib.definitionsOf configComponents extraArgs;
# system configuration. It's not checked for undeclared options.
systemModule =
pkgs.lib.fixMergeModules configComponents extraArgs;
optionDefinitions = systemModule.config;
optionDeclarations = systemModule.options;
# These are the extra arguments passed to every module. In
# particular, Nixpkgs is passed through the "pkgs" argument.
@ -53,19 +55,12 @@ rec {
# define nixpkgs.config, so it's pointless to evaluate them.
baseModules = [ ../modules/misc/nixpkgs.nix ];
pkgs = import nixpkgs { inherit system; config = {}; };
}).configFast.nixpkgs.config;
}).optionDefinitions.nixpkgs.config;
};
# "fixableDeclarationsOf" is used instead of "declarationsOf" because some
# option default values may depends on the definition of other options.
# !!! This seems inefficent. Didn't definitionsOf already compute
# the option declarations?
optionDeclarations =
pkgs.lib.fixableDeclarationsOf configComponents extraArgs configFast;
# Optionally check wether all config values have corresponding
# option declarations.
config = pkgs.checker configFast
configFast.environment.checkConfigurationOptions
optionDeclarations configFast;
config = pkgs.checker optionDefinitions
optionDefinitions.environment.checkConfigurationOptions
optionDeclarations optionDefinitions;
}