mirror of
https://github.com/ilyakooo0/nixpkgs.git
synced 2024-12-27 22:03:54 +03:00
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.
33 lines
1.1 KiB
Nix
33 lines
1.1 KiB
Nix
let
|
|
|
|
trivial = import ./trivial.nix;
|
|
lists = import ./lists.nix;
|
|
strings = import ./strings.nix;
|
|
stringsWithDeps = import ./strings-with-deps.nix;
|
|
attrsets = import ./attrsets.nix;
|
|
sources = import ./sources.nix;
|
|
modules = import ./modules.nix;
|
|
options = import ./options.nix;
|
|
types = import ./types.nix;
|
|
meta = import ./meta.nix;
|
|
debug = import ./debug.nix;
|
|
misc = import ./misc.nix;
|
|
maintainers = import ./maintainers.nix;
|
|
platforms = import ./platforms.nix;
|
|
systems = import ./systems.nix;
|
|
customisation = import ./customisation.nix;
|
|
licenses = import ./licenses.nix;
|
|
|
|
in
|
|
{ inherit trivial lists strings stringsWithDeps attrsets sources options
|
|
modules types meta debug maintainers licenses platforms systems;
|
|
# Pull in some builtins not included elsewhere.
|
|
inherit (builtins) pathExists readFile;
|
|
}
|
|
# !!! don't include everything at top-level; perhaps only the most
|
|
# commonly used functions.
|
|
// trivial // lists // strings // stringsWithDeps // attrsets // sources
|
|
// options // types // meta // debug // misc // modules
|
|
// systems
|
|
// customisation
|