ref: non-flake compatibility

since this is purely a legacy concern (both default.nix and shell.nix),
we avoid to include the flake-compat as a flake input.

(even though unused inputs are lazily fetched - for style & clarity)

default.nix

@@ -0,0 +1,8 @@
+{ system ? builtins.currentSystem }:
+let
+in (
+  (import ./lib/compat.nix).flake-compat {
+    src = ./.;
+    inherit system;
+  }
+).defaultNix

examples/default.nix

@@ -1,4 +1,4 @@
-{ kubenix ? import ./.. { } }:
+{ kubenix ? (import ./.. { }).default }:
 
 {
   nginx-deployment = import ./nginx-deployment { inherit kubenix; };

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "devshell-flake": {
       "locked": {
-        "lastModified": 1620641550,
-        "narHash": "sha256-o359KdI/LNiPL6EbirONff2MOvZHtZr9MgYx3R9oVFk=",
+        "lastModified": 1622013274,
+        "narHash": "sha256-mK/Lv0lCbl07dI5s7tR/7nb79HunKnJik3KyR6yeI2k=",
         "owner": "numtide",
         "repo": "devshell",
-        "rev": "a47493423092f6c4c0a7eb605a7cd515a77db4a8",
+        "rev": "e7faf69e6bf8546517cc936c7f6d31c7eb3abcb2",
         "type": "github"
       },
       "original": {
@@ -15,29 +15,13 @@
         "type": "github"
       }
     },
-    "flake-compat": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1606424373,
-        "narHash": "sha256-oq8d4//CJOrVj+EcOaSXvMebvuTkmBJuT5tzlfewUnQ=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "99f1c2157fba4bfe6211a321fd0ee43199025dbf",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "locked": {
-        "lastModified": 1605370193,
-        "narHash": "sha256-YyMTf3URDL/otKdKgtoMChu4vfVL3vCMkRqpGifhUn0=",
+        "lastModified": 1620759905,
+        "narHash": "sha256-WiyWawrgmyN0EdmiHyG2V+fqReiVi8bM9cRdMaKQOFg=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5021eac20303a61fafe17224c087f5519baed54d",
+        "rev": "b543720b25df6ffdfcf9227afafc5b8c1fabfae8",
         "type": "github"
       },
       "original": {
@@ -48,11 +32,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1609233094,
-        "narHash": "sha256-Ltzng3h4LDNjYAvmoX0kQ3023TvdupwuMvm1D7hZkyY=",
+        "lastModified": 1622230509,
+        "narHash": "sha256-ybr8ufMIE1OVIG+S7cMihx1HlrJgTV3lLr/oW/LplTM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2b556ea6712cd4fa76a433093df0cb375a267e3d",
+        "rev": "190d0579fbb13e83756dc2e6df49a3b9221fbfa9",
         "type": "github"
       },
       "original": {
@@ -64,7 +48,6 @@
     "root": {
       "inputs": {
         "devshell-flake": "devshell-flake",
-        "flake-compat": "flake-compat",
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }

flake.nix

@@ -5,12 +5,9 @@
     flake-utils.url = "github:numtide/flake-utils";
     nixpkgs.url = "github:NixOS/nixpkgs";
     devshell-flake.url = "github:numtide/devshell";
-    flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };
   };
 
-  outputs = { self, nixpkgs, flake-utils, devshell-flake, flake-compat }:
-    { modules = import ./modules; }
-    //
+  outputs = { self, nixpkgs, flake-utils, devshell-flake }:
     (flake-utils.lib.eachDefaultSystem
       (system:
         let
@@ -27,29 +24,23 @@
         in
         rec {
           devShell = with pkgs; devshell.mkShell
-            {
-              imports = [
-                (devshell.importTOML ./devshell.toml)
-              ];
-            };
+            { imports = [ (devshell.importTOML ./devshell.toml) ]; };
 
           packages = flake-utils.lib.flattenTree {
             inherit (pkgs)
-              kubenix
               kubernetes
               kubectl
               ;
           };
 
-          hydraJobs = {
-            inherit packages;
-          };
+          defaultPackage = pkgs.kubenix;
         }
       )
     ) //
     {
+      modules = import ./src/modules;
       overlay = final: prev: {
-        kubenix = prev.callPackage ./kubenix.nix { };
+        kubenix = prev.callPackage ./src/kubenix.nix { };
         # up to date versions of their nixpkgs equivalents
         kubernetes = prev.callPackage ./pkgs/applications/networking/cluster/kubernetes
           { };

lib/compat.nix

@@ -1,17 +1,6 @@
-let
-  inherit (builtins)
-    fetchTarball
-    fromJSON
-    readFile
-    ;
-  lockfile = fromJSON (readFile ../flake.lock);
-in
-input:
-let
-  locked = lockfile.nodes."${input}".locked;
-  inherit (locked) rev narHash owner repo;
-in
-fetchTarball {
-  url = "https://github.com/${owner}/${repo}/archive/${rev}.tar.gz";
-  sha256 = narHash;
+{
+  flake-compat = import (builtins.fetchurl {
+    url = "https://raw.githubusercontent.com/edolstra/flake-compat/99f1c2157fba4bfe6211a321fd0ee43199025dbf/default.nix";
+    sha256 = "1vas5z58901gavy5d53n1ima482yvly405jp9l8g07nr4abmzsyb";
+  });
 }

shell.nix

@@ -1,13 +1,8 @@
-(import
-  (
+{ system ? builtins.currentSystem }:
 let
-      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
-    in
-    fetchTarball {
-      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }
-  )
-  {
+in (
+  (import ./lib/compat.nix).flake-compat {
     src = ./.;
-  }).shellNix
+    inherit system;
+  }
+).shellNix

tests/default.nix

@@ -1,6 +1,6 @@
 { pkgs ? import <nixpkgs> { }
 , lib ? pkgs.lib
-, kubenix ? import ../. { inherit pkgs lib; }
+, kubenix ? (import ../. { }).default
 
 , nixosPath ? toString <nixpkgs/nixos>