95 lines
2.8 KiB
Nix
95 lines
2.8 KiB
Nix
{ lib, deploy }:
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let
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inherit (lib) os;
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inherit (builtins) mapAttrs attrNames attrValues head isFunction;
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in
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_: { self, inputs, ... } @ args:
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let
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config = lib.mkFlake.evalArgs {
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inherit args;
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};
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cfg = config.config;
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otherArguments = removeAttrs args (attrNames config.options);
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defaultModules = with lib.modules; [
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(hmDefaults {
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inherit (cfg.home) suites;
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modules = cfg.home.modules ++ cfg.home.externalModules;
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})
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(globalDefaults {
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inherit self inputs;
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})
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];
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stripChannel = channel: removeAttrs channel [
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# arguments in our channels api that shouldn't be passed to fup
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"overlays"
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];
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getDefaultChannel = channels: channels.${cfg.nixos.hostDefaults.channelName};
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# evalArgs sets channelName and system to null by default
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# but for proper default handling in fup, null args have to be removed
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stripHost = args: removeAttrs (lib.filterAttrs (_: arg: arg != null) args) [
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# arguments in our hosts/hostDefaults api that shouldn't be passed to fup
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"externalModules"
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];
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hosts = lib.mapAttrs (_: stripHost) cfg.nixos.hosts;
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hostDefaults = stripHost cfg.nixos.hostDefaults;
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in
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lib.systemFlake (lib.recursiveUpdate
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otherArguments
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{
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inherit self inputs hosts;
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inherit (cfg) channelsConfig supportedSystems;
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channels = mapAttrs
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(name: channel:
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stripChannel (channel // {
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# pass channels if "overlay" has three arguments
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overlaysBuilder = channels: lib.unifyOverlays channels channel.overlays;
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})
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)
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cfg.channels;
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hostDefaults = lib.mergeAny hostDefaults {
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specialArgs.suites = cfg.nixos.suites;
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modules = cfg.nixos.hostDefaults.externalModules ++ defaultModules;
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builder = os.devosSystem { inherit self inputs; };
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};
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nixosModules = lib.exporter.modulesFromList cfg.nixos.hostDefaults.modules;
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homeModules = lib.exporter.modulesFromList cfg.home.modules;
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homeConfigurations = os.mkHomeConfigurations self.nixosConfigurations;
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deploy.nodes = os.mkNodes deploy self.nixosConfigurations;
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overlays = lib.exporter.overlaysFromChannelsExporter {
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# since we can't detect overlays owned by self
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# we have to filter out ones exported by the inputs
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# optimally we would want a solution for NixOS/nix#4740
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inherit inputs;
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inherit (self) pkgs;
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};
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packagesBuilder = lib.builder.packagesFromOverlaysBuilderConstructor self.overlays;
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checksBuilder = channels:
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lib.pkgs-lib.tests.mkChecks {
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pkgs = getDefaultChannel channels;
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inherit (self.deploy) nodes;
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hosts = self.nixosConfigurations;
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homes = self.homeConfigurations;
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};
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devShellBuilder = channels:
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lib.pkgs-lib.shell {
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pkgs = getDefaultChannel channels;
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};
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}
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)
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