Commit graph

660 commits

Author SHA1 Message Date
Eelco Dolstra
0e333688ce Big cleanup of the NixOS module system
The major changes are:

* The evaluation is now driven by the declared options.  In
  particular, this fixes the long-standing problem with lack of
  laziness of disabled option definitions.  Thus, a configuration like

    config = mkIf false {
      environment.systemPackages = throw "bla";
    };

  will now evaluate without throwing an error.  This also improves
  performance since we're not evaluating unused option definitions.

* The implementation of properties is greatly simplified.

* There is a new type constructor "submodule" that replaces
  "optionSet".  Unlike "optionSet", "submodule" gets its option
  declarations as an argument, making it more like "listOf" and other
  type constructors.  A typical use is:

    foo = mkOption {
      type = type.attrsOf (type.submodule (
        { config, ... }:
        { bar = mkOption { ... };
          xyzzy = mkOption { ... };
        }));
    };

  Existing uses of "optionSet" are automatically mapped to
  "submodule".

* Modules are now checked for unsupported attributes: you get an error
  if a module contains an attribute other than "config", "options" or
  "imports".

* The new implementation is faster and uses much less memory.
2013-10-28 22:45:55 +01:00
Eelco Dolstra
335422f7be Get rid of the only use of mkDefaultValue 2013-10-28 22:45:54 +01:00
Eelco Dolstra
c4149c7b56 Fix evaluation error in the ISOs 2013-10-24 02:03:10 +02:00
Eelco Dolstra
a3777ba4f9 Remove dependencies on the Nixpkgs location 2013-10-23 20:08:23 +02:00
Eelco Dolstra
8f4c5b05d5 Add a way to define obsolete options that have no replacement 2013-10-23 20:08:22 +02:00
Eelco Dolstra
29014a47fb Allow options to be marked as "internal"
This means they're not for end users.  Currently they're filtered from
the manual, but we could include them in a separate section.
2013-10-23 20:08:21 +02:00
Eelco Dolstra
e29b51bfb1 Improve option description 2013-10-23 20:08:21 +02:00
Eelco Dolstra
b33657df03 grub: Make assertion lazier 2013-10-17 13:30:49 +02:00
Shea Levy
a63b4dc555 Remove old efi boot stub bootloader
Signed-off-by: Shea Levy <shea@shealevy.com>
2013-10-10 10:54:35 -04:00
Eelco Dolstra
5c1f8cbc70 Move all of NixOS to nixos/ in preparation of the repository merge 2013-10-10 13:28:20 +02:00