mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-23 22:20:51 +00:00
0e333688ce
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.
|
||
|---|---|---|
| .. | ||
| fonts | ||
| gnu.nix | ||
| i18n.nix | ||
| krb5.nix | ||
| ldap.nix | ||
| networking.nix | ||
| no-x-libs.nix | ||
| nsswitch.nix | ||
| power-management.nix | ||
| pulseaudio.nix | ||
| shells-environment.nix | ||
| swap.nix | ||
| sysctl.nix | ||
| system-path.nix | ||
| timezone.nix | ||
| unix-odbc-drivers.nix | ||
| users-groups.nix | ||