os/flake.nix

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Nix
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{
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description = "A highly structured configuration database.";
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inputs.nixpkgs.url = "nixpkgs/release-20.03";
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inputs.unstable.url = "nixpkgs/master";
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inputs.home.url = "github:rycee/home-manager/bqv-flakes";
outputs = inputs@{ self, home, nixpkgs, unstable }:
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let
inherit (builtins) attrNames attrValues readDir;
inherit (nixpkgs) lib;
inherit (lib) removeSuffix recursiveUpdate;
inherit (utils) pathsToImportedAttrs;
utils = import ./lib/utils.nix { inherit lib; };
system = "x86_64-linux";
pkgImport = pkgs:
import pkgs {
inherit system;
overlays = attrValues self.overlays;
config = { allowUnfree = true; };
};
pkgs = pkgImport nixpkgs;
unstablePkgs = pkgImport unstable;
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in
{
nixosConfigurations =
import ./hosts (recursiveUpdate inputs {
inherit system pkgs
unstablePkgs utils;
}
);
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devShell."${system}" = import ./shell.nix { inherit pkgs; };
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overlay = import ./pkgs;
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overlays =
let
overlayDir = ./overlays;
fullPath = name: overlayDir + "/${name}";
overlayPaths = map fullPath (attrNames (readDir overlayDir));
in
pathsToImportedAttrs overlayPaths;
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packages."${system}" = self.overlay pkgs pkgs;
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nixosModules =
let
# binary cache
cachix = import ./cachix.nix;
cachixAttrs = { inherit cachix; };
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# modules
moduleList = import ./modules/list.nix;
modulesAttrs = pathsToImportedAttrs moduleList;
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# profiles
profilesList = import ./profiles/list.nix;
profilesAttrs = { profiles = pathsToImportedAttrs profilesList; };
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in
recursiveUpdate
(recursiveUpdate cachixAttrs modulesAttrs)
profilesAttrs;
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};
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}