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* Converted the option declarations in options.nix to nested attribute

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sets that match the hierarchical structure of the options.  So
  instead of

    {
      name = ["time" "timeZone"];
      default = "CET";
      example = "America/New_York";
      description = "The time zone used when displaying times and dates.";
    }

  we have

    time = {
      timeZone = {
        default = "CET";
        example = "America/New_York";
        description = "The time zone used when displaying times and dates.";
      };
    };

  And instead of `config.get ["time" "timeZone"]' you can now just say
  `config.time.timeZone'.  Furthermore, this option representation
  will allow option structures with repetition (such as in
  networking.interfaces or services.httpd.subservices) to be defined.

svn path=/nixos/trunk/; revision=9618
This commit is contained in:
Eelco Dolstra 2007-11-09 18:12:23 +00:00
parent c4ad7b56d1
commit 62c1f0ddcc
3 changed files with 1339 additions and 1369 deletions
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15
system/config.nix
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@ -5,17 +5,20 @@
pkgs: config:
let lib = pkgs.library; in
let
rec {
lib = pkgs.library;
# The option declarations, i.e., option names with defaults and
# documentation.
declarations = import ./options.nix {inherit pkgs;};
declarations = import ./options.nix {inherit pkgs; inherit (lib) mkOption;};
configFilled = lib.addDefaultOptionValues declarations config;
# Get the option named `name' from the user configuration, using
# its default value if it's not defined.
get = name:
/*
let
decl =
lib.findSingle (decl: lib.eqLists decl.name name)
@ -27,7 +30,11 @@ rec {
then abort ("Option `" + printName name + "' has no default.")
else decl.default;
in lib.getAttr name default config;
*/
let
default = abort ("Undeclared option `" + printName name + "'.");
in lib.getAttr name default configFilled;
printName = name: lib.concatStrings (lib.intersperse "." name);
}
in configFilled // {inherit get;}

2687
system/options.nix
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File diff suppressed because it is too large Load Diff

6
system/system.nix
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@ -31,11 +31,11 @@ rec {
nix = pkgs.nixUnstable; # we need the exportReferencesGraph feature
kernel = (config.get ["boot" "kernel"]) pkgs;
kernel = config.boot.kernel pkgs;
rootModules =
(config.get ["boot" "initrd" "extraKernelModules"]) ++
(config.get ["boot" "initrd" "kernelModules"]);
config.boot.initrd.extraKernelModules ++
config.boot.initrd.kernelModules;
# Determine the set of modules that we need to mount the root FS.