deduplicate

default.nix

@@ -1,23 +1,25 @@
-let
-  inputs = import ./npins;
-  system = "x86_64-linux";
-  pkgs = import inputs.nixpkgs { config = { }; overlays = [ ]; system = builtins.currentSystem; };
-  lib = import "${inputs.nixpkgs}/lib" // { inherit nixosSystem; };
-  nixosSystem = args:
-    import "${inputs.nixpkgs}/nixos/lib/eval-config.nix"
-      (
-        {
-          inherit lib;
-          # Allow system to be set modularly in nixpkgs.system.
-          # We set it to null, to remove the "legacy" entrypoint's
-          # non-hermetic default.
-          system = null;
+{ inputs ? import ./npins
+, system ? builtins.currentSystem
+, pkgs ? import inputs.nixpkgs { config = { }; overlays = [ ]; inherit system; }
+, lib ? import "${inputs.nixpkgs}/lib"
+    // {
+    nixosSystem = args:
+      import "${inputs.nixpkgs}/nixos/lib/eval-config.nix"
+        (
+          {
+            inherit lib;
+            # Allow system to be set modularly in nixpkgs.system.
+            # We set it to null, to remove the "legacy" entrypoint's
+            # non-hermetic default.
+            system = null;
 
-          modules = args.modules;
-        }
-        // builtins.removeAttrs args [ "modules" ]
-      );
-in
+            modules = args.modules;
+          }
+          // builtins.removeAttrs args [ "modules" ]
+        );
+  }
+,
+}:
 rec {
   nixosModules = {
     disko = "${inputs.disko}/module.nix";
@@ -31,7 +33,7 @@ rec {
   # test with
   #     nix-build -A nixosConfigurations.<config>.installTest
   nixosConfigurations = {
-    mastodon = nixosSystem {
+    mastodon = lib.nixosSystem {
       inherit system;
       modules = with nixosModules; [
         disko
@@ -41,7 +43,7 @@ rec {
       ];
     };
 
-    peertube = nixosSystem {
+    peertube = lib.nixosSystem {
       inherit system;
       modules = with nixosModules; [
         disko
@@ -51,7 +53,7 @@ rec {
       ];
     };
 
-    pixelfed = nixosSystem {
+    pixelfed = lib.nixosSystem {
       inherit system;
       modules = with nixosModules; [
         disko
@@ -61,7 +63,7 @@ rec {
       ];
     };
 
-    all = nixosSystem {
+    all = lib.nixosSystem {
       inherit system;
       modules = with nixosModules; [
         interactive-vm

flake.nix

@@ -6,99 +6,25 @@
     disko.url = "github:nix-community/disko";
   };
 
-  outputs = { self, nixpkgs, disko, ... }:
+  outputs = inputs@{ self, nixpkgs, disko, ... }:
   let
     system = "x86_64-linux";
-    pkgs = nixpkgs.legacyPackages.${system};
+    default = import ./default.nix { inherit system inputs; };
   in {
 
-    nixosModules = {
+    inherit (default)
+      nixosModules
+      nixosConfigurations
+      # build with
+      #     nix build .#installers.<config>
+      installers
+      # run with
+      #     nix run .#deploy.<machine>
+      deploy
+      ;
 
-      ## Fediversity modules
-      fediversity = import ./fediversity;
+    checks.${system} = default.tests;
 
-      ## VM-specific modules
-      inherit (disko.nixosModules) disko;
-      disk-layout = import ./vm/disk-layout.nix;
-      interactive-vm = import ./vm/interactive-vm.nix;
-      mastodon-vm = import ./vm/mastodon-vm.nix;
-      peertube-vm = import ./vm/peertube-vm.nix;
-      pixelfed-vm = import ./vm/pixelfed-vm.nix;
-    };
-
-    nixosConfigurations = {
-      mastodon = nixpkgs.lib.nixosSystem {
-        inherit system;
-        modules = with self.nixosModules; [
-          disko
-          disk-layout
-          fediversity
-          interactive-vm
-          mastodon-vm
-        ];
-      };
-
-      peertube = nixpkgs.lib.nixosSystem {
-        inherit system;
-        modules = with self.nixosModules; [
-          disko
-          disk-layout
-          fediversity
-          interactive-vm
-          peertube-vm
-        ];
-      };
-
-      pixelfed = nixpkgs.lib.nixosSystem {
-        inherit system;
-        modules = with self.nixosModules; [
-          disko
-          disk-layout
-          fediversity
-          interactive-vm
-          pixelfed-vm
-        ];
-      };
-
-      all = nixpkgs.lib.nixosSystem {
-        inherit system;
-        modules = with self.nixosModules; [
-          disko
-          disk-layout
-          fediversity
-          interactive-vm
-          peertube-vm
-          pixelfed-vm
-          mastodon-vm
-        ];
-      };
-    };
-
-    # build with
-    #     nix build .#installers.<config>
-    installers =
-      let
-        installer = (import ./installer.nix) nixpkgs;
-      in
-      nixpkgs.lib.mapAttrs (_: config: installer config) self.nixosConfigurations;
-
-    # run with
-    #     nix run .#deploy.<machine>
-    deploy =
-      let
-        deployCommand = (pkgs.callPackage ./deploy.nix {});
-      in
-      nixpkgs.lib.mapAttrs (name: config: deployCommand name config) self.nixosConfigurations;
-
-    checks.${system} = {
-      mastodon-garage = import ./tests/mastodon-garage.nix { inherit pkgs; };
-      pixelfed-garage = import ./tests/pixelfed-garage.nix { inherit pkgs; };
-    };
-
-    devShells.${system}.default = pkgs.mkShell {
-      packages = with pkgs; [
-        nil
-      ];
-    };
+    devShells.${system}.default = default.shell;
   };
 }