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wrappers: expose platform wrapper modules via build.*Module options

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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`).
This commit is contained in:
Matt Sturgeon 2025-12-03 08:28:35 +00:00
parent 05c57f2e74
commit 53b702b367
7 changed files with 110 additions and 44 deletions
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40
modules/wrappers.nix Normal file
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@ -0,0 +1,40 @@
{
lib,
extendModules,
config,
...
}:
{
options.build = {
nixosModule = lib.mkOption {
type = lib.types.deferredModule;
description = "A NixOS module that installs this Nixvim configuration.";
readOnly = true;
};
homeModule = lib.mkOption {
type = lib.types.deferredModule;
description = "A Home Manager module that installs this Nixvim configuration.";
readOnly = true;
};
nixDarwinModule = lib.mkOption {
type = lib.types.deferredModule;
description = "A nix-darwin module that installs this Nixvim configuration.";
readOnly = true;
};
};
config.build = {
nixosModule = lib.modules.importApply ../wrappers/nixos.nix {
self = config.flake;
inherit extendModules;
};
homeModule = lib.modules.importApply ../wrappers/hm.nix {
self = config.flake;
inherit extendModules;
};
nixDarwinModule = lib.modules.importApply ../wrappers/darwin.nix {
self = config.flake;
inherit extendModules;
};
};
}