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modules/nixpkgs: add hostPlatform & buildPlatform options

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Matt Sturgeon 2024-10-19 23:45:28 +01:00
parent 5bd04ce09a
commit 8dc8fa38b0
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2 changed files with 58 additions and 3 deletions
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46
modules/top-level/nixpkgs.nix
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@ -172,6 +172,52 @@ in
'';
};
hostPlatform = lib.mkOption {
type = with lib.types; either str attrs;
example = {
system = "aarch64-linux";
};
apply = lib.systems.elaborate;
defaultText = lib.literalMD ''
- Inherited from the "host" configuration's `pkgs`
- Must be specified manually when building a standalone nixvim
'';
description = ''
Specifies the platform where the Nixvim configuration will run.
To cross-compile, also set `nixpkgs.buildPlatform`.
Ignored when `nixpkgs.pkgs` is set.
'';
};
buildPlatform = lib.mkOption {
type = with lib.types; either str attrs;
default = cfg.hostPlatform;
example = {
system = "x86_64-linux";
};
apply =
value:
let
elaborated = lib.systems.elaborate value;
in
# If equivalent to `hostPlatform`, make it actually identical so that `==` can be used
# See https://github.com/NixOS/nixpkgs/issues/278001
if lib.systems.equals elaborated cfg.hostPlatform then cfg.hostPlatform else elaborated;
defaultText = lib.literalMD ''
Inherited from the "host" configuration's `pkgs`.
Or `config.nixpkgs.hostPlatform` when building a standalone nixvim.
'';
description = ''
Specifies the platform on which Nixvim should be built.
By default, Nixvim is built on the system where it runs, but you can change where it's built.
Setting this option will cause Nixvim to be cross-compiled.
Ignored when `nixpkgs.pkgs` is set.
'';
};
# NOTE: This is a nixvim-specific option; there's no equivalent in nixos
source = lib.mkOption {
type = lib.types.path;

15
wrappers/_shared.nix
View file

@ -32,11 +32,20 @@ let
evalArgs
// {
modules = evalArgs.modules or [ ] ++ [
# Use global packages by default in nixvim's submodule
# TODO: `useGlobalPackages` option and/or deprecate using host packages?
{
_file = ./_shared.nix;
nixpkgs.pkgs = lib.mkDefault pkgs;
nixpkgs = {
# Use global packages by default in nixvim's submodule
# TODO: `useGlobalPackages` option and/or deprecate using host packages?
pkgs = lib.mkDefault pkgs;
# Inherit platform spec
# FIXME: buildPlatform can't use option-default because it already has a default
# (it defaults to hostPlatform)...
hostPlatform = lib.mkOptionDefault pkgs.stdenv.hostPlatform;
buildPlatform = lib.mkDefault pkgs.stdenv.buildPlatform;
};
}
];
}