home-manager: add lib support for non-flake users (#5429)

default.nix

@@ -24,6 +24,7 @@ in rec {
     pkgs.callPackage ./home-manager/install.nix { inherit home-manager; };
 
   nixos = import ./nixos;
+  lib = import ./lib { inherit (pkgs) lib; };
 
   inherit path;
 }

flake.nix

@@ -41,56 +41,7 @@
 
       defaultTemplate = self.templates.standalone;
 
-      lib = {
+      lib = import ./lib { inherit (nixpkgs) lib; };
-        hm = (import ./modules/lib/stdlib-extended.nix nixpkgs.lib).hm;
-        homeManagerConfiguration = { modules ? [ ], pkgs, lib ? pkgs.lib
-          , extraSpecialArgs ? { }, check ? true
-            # Deprecated:
-          , configuration ? null, extraModules ? null, stateVersion ? null
-          , username ? null, homeDirectory ? null, system ? null }@args:
-          let
-            msgForRemovedArg = ''
-              The 'homeManagerConfiguration' arguments
-
-                - 'configuration',
-                - 'username',
-                - 'homeDirectory'
-                - 'stateVersion',
-                - 'extraModules', and
-                - 'system'
-
-              have been removed. Instead use the arguments 'pkgs' and
-              'modules'. See the 22.11 release notes for more: https://nix-community.github.io/home-manager/release-notes.xhtml#sec-release-22.11-highlights
-            '';
-
-            throwForRemovedArgs = v:
-              let
-                used = builtins.filter (n: (args.${n} or null) != null) [
-                  "configuration"
-                  "username"
-                  "homeDirectory"
-                  "stateVersion"
-                  "extraModules"
-                  "system"
-                ];
-                msg = msgForRemovedArg + ''
-
-
-                  Deprecated args passed: ''
-                  + builtins.concatStringsSep " " used;
-              in lib.throwIf (used != [ ]) msg v;
-
-          in throwForRemovedArgs (import ./modules {
-            inherit pkgs lib check extraSpecialArgs;
-            configuration = { ... }: {
-              imports = modules ++ [{ programs.home-manager.path = "${./.}"; }];
-              nixpkgs = {
-                config = nixpkgs.lib.mkDefault pkgs.config;
-                inherit (pkgs) overlays;
-              };
-            };
-          });
-      };
     } // (let
       forAllSystems = nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed;
     in {

lib/default.nix

@@ -0,0 +1,49 @@
+{ lib }: {
+  hm = (import ../modules/lib/stdlib-extended.nix lib).hm;
+  homeManagerConfiguration = { modules ? [ ], pkgs, lib ? pkgs.lib
+    , extraSpecialArgs ? { }, check ? true
+      # Deprecated:
+    , configuration ? null, extraModules ? null, stateVersion ? null
+    , username ? null, homeDirectory ? null, system ? null }@args:
+    let
+      msgForRemovedArg = ''
+        The 'homeManagerConfiguration' arguments
+
+          - 'configuration',
+          - 'username',
+          - 'homeDirectory'
+          - 'stateVersion',
+          - 'extraModules', and
+          - 'system'
+
+        have been removed. Instead use the arguments 'pkgs' and
+        'modules'. See the 22.11 release notes for more: https://nix-community.github.io/home-manager/release-notes.xhtml#sec-release-22.11-highlights
+      '';
+
+      throwForRemovedArgs = v:
+        let
+          used = builtins.filter (n: (args.${n} or null) != null) [
+            "configuration"
+            "username"
+            "homeDirectory"
+            "stateVersion"
+            "extraModules"
+            "system"
+          ];
+          msg = msgForRemovedArg + ''
+
+
+            Deprecated args passed: '' + builtins.concatStringsSep " " used;
+        in lib.throwIf (used != [ ]) msg v;
+
+    in throwForRemovedArgs (import ../modules {
+      inherit pkgs lib check extraSpecialArgs;
+      configuration = { ... }: {
+        imports = modules ++ [{ programs.home-manager.path = "${../.}"; }];
+        nixpkgs = {
+          config = lib.mkDefault pkgs.config;
+          inherit (pkgs) overlays;
+        };
+      };
+    });
+}