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https://github.com/nix-community/nixvim.git
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3426dd04bb
Previously, we constructed Nixvim's extended lib from the host configuration's lib. Naïvely, this potentially allowed fetching fewer Nixpkgs revisions and instantiating fewer lib instances. However, it also means our `lib` interface is unstable, especially when the host configuration is using a different Nixpkgs release to Nixvim.
111 lines
3 KiB
Nix
111 lines
3 KiB
Nix
{
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# The nixvim flake
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self,
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# Extra args for the `evalNixvim` call that produces the type for `programs.nixvim`
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evalArgs ? { },
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# Option path where extraFiles should go
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filesOpt ? null,
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# Filepath prefix to apply to extraFiles
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filesPrefix ? "nvim/",
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# Filepath to use when adding `cfg.initPath` to `filesOpt`
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# Is prefixed with `filesPrefix`
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initName ? "init.lua",
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}:
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{
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pkgs,
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lib,
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config,
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...
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}:
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let
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inherit (lib)
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listToAttrs
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map
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mkIf
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mkMerge
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optionalAttrs
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setAttrByPath
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;
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cfg = config.programs.nixvim;
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# FIXME: buildPlatform can't use mkOptionDefault because it already defaults to hostPlatform
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buildPlatformPrio = (lib.mkOptionDefault null).priority - 1;
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nixpkgsModule =
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{ config, ... }:
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{
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_file = ./_shared.nix;
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nixpkgs = {
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# Use global packages in nixvim's submodule
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pkgs = lib.mkIf config.nixpkgs.useGlobalPackages (lib.mkDefault pkgs);
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# Inherit platforms
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hostPlatform = lib.mkOptionDefault pkgs.stdenv.hostPlatform.system;
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buildPlatform = lib.mkOverride buildPlatformPrio pkgs.stdenv.buildPlatform.system;
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};
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};
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nixvimConfiguration = config.lib.nixvim.modules.evalNixvim (
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evalArgs
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// {
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modules = evalArgs.modules or [ ] ++ [
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nixpkgsModule
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];
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}
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);
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extraFiles = lib.filter (file: file.enable) (lib.attrValues cfg.extraFiles);
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in
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{
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_file = ./_shared.nix;
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options.programs.nixvim = lib.mkOption {
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inherit (nixvimConfiguration) type;
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default = { };
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};
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# TODO: Added 2024-07-24; remove after 24.11
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imports = [
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(lib.mkRenamedOptionModule [ "nixvim" "helpers" ] [ "lib" "nixvim" ])
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];
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config = mkMerge [
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{
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# Make Nixvim's extended lib available to the host modules
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# - The `config.lib.nixvim` option is Nixvim's section of the lib
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# (based on our flake's locked Nixpkgs lib)
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# - The `nixvimLib` arg is `lib` extended with our overlay
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# (based on the host configuration's `lib`)
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#
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# NOTE: It is important that we use the flake-locked Nixpkgs lib,
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# so that we can safely use recently added lib features.
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# TODO: Consider deprecating `_module.args.nixvimLib`?
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lib.nixvim = lib.mkDefault self.lib.nixvim;
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_module.args.nixvimLib = lib.mkDefault (lib.extend self.lib.overlay);
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}
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# Propagate nixvim's assertions to the host modules
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(lib.mkIf cfg.enable { inherit (cfg) warnings assertions; })
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# Propagate extraFiles to the host modules
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(optionalAttrs (filesOpt != null) (
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mkIf (cfg.enable && !cfg.wrapRc) (
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setAttrByPath filesOpt (
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listToAttrs (
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map (
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{ target, finalSource, ... }:
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{
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name = filesPrefix + target;
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value = {
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source = finalSource;
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};
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}
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) extraFiles
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)
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// {
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${filesPrefix + initName}.source = cfg.build.initFile;
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}
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)
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)
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))
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];
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}
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