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nixvim/flake/wrappers.nix
Matt Sturgeon 53b702b367 wrappers: expose platform wrapper modules via build.*Module options
Expose the platform wrapper modules as the Nixvim configuration options
`build.nixosModule`, `build.homeModule`, and `build.nixDarwinModule`.
This makes it possible to reuse a single Nixvim configuration across
NixOS, Home Manager, and nix-darwin without re-importing modules into
`programs.nixvim` manually.

Evaluating these wrapper modules requires a "bare" Nixvim configuration;
one that does not define `pkgs` or `nixpkgs.hostPlatform`. Such a
configuration would normally fail to evaluate, but disabling
`_module.check` provides a sufficiently lazy evaluation to access the
wrapper options.

To prevent the `_module.check = false` module from leaking into user
configs, it has a unique module key and gets disabled inside the wrapper
modules (`wrappers/_shared.nix`).
2025-12-09 08:01:49 +00:00

60 lines
1.7 KiB
Nix

{
self,
lib,
...
}:
let
# Added 2025-05-25; warning shown since 2025-08-01 (25.11)
# NOTE: top-level binding of a fully resolved value, to avoid printing multiple times
homeManagerModulesWarning = lib.warn "nixvim: flake output `homeManagerModules` has been renamed to `homeModules`." null;
# A base configuration used to evaluate the wrapper modules.
#
# While we don't define a `pkgs` or `hostPlatform` here, which would normally
# lead to eval errors, disabling option-declaration checking gives us enough
# laziness to evaluate the options we need.
#
# The `_module.check` module has a key, so we can disable it later in the
# platform wrapper modules.
configuration = self.lib.evalNixvim {
modules = [
{
key = "<internal:nixvim-nocheck-base-eval>";
config._module.check = false;
}
];
};
in
{
perSystem =
{ config, system, ... }:
let
inherit (config.legacyPackages) makeNixvimWithModule;
in
{
legacyPackages = {
makeNixvimWithModule = import ../wrappers/standalone.nix {
inherit lib self;
defaultSystem = system;
};
makeNixvim = module: makeNixvimWithModule { inherit module; };
};
};
flake = {
nixosModules = {
nixvim = configuration.config.build.nixosModule;
default = self.nixosModules.nixvim;
};
# Alias for backward compatibility
homeManagerModules = lib.mapAttrs (_: lib.seq homeManagerModulesWarning) self.homeModules;
homeModules = {
nixvim = configuration.config.build.homeModule;
default = self.homeModules.nixvim;
};
nixDarwinModules = {
nixvim = configuration.config.build.nixDarwinModule;
default = self.nixDarwinModules.nixvim;
};
};
}