fix(tests): channel patching

devShell.nix

@@ -74,15 +74,15 @@ devshell.mkShell {
       command = "nix build ${rootDir}/examples/darwin#darwinConfigurations.Hostname1.system --no-write-lock-file --dry-run";
     }
 
-    #(test "channel-patching")
+    (test "channel-patching")
     (test "derivation-outputs")
     (test "hosts-config")
     (test "overlays-flow")
     (test "all" // { command = "check-derivation-outputs && check-hosts-config && check-overlays-flow"; })
 
     (dry-nixos-build "minimal-multichannel" "Hostname1")
     (dry-nixos-build "minimal-multichannel" "Hostname2")
-    #(dry-nixos-build "home-manager+nur+neovim" "Rick")
+    (dry-nixos-build "home-manager+nur+neovim" "Rick")
     (dry-nixos-build "exporters" "Morty")
     (withCategory "dry-build" { name = "build-all"; command = "build-exporters-Morty && build-minimal-multichannel-Hostname1 && build-minimal-multichannel-Hostname2"; })
 

tests/channel-patching/myNixpkgsPatch.patch

@@ -1,38 +1,35 @@
 diff --git a/lib/default.nix b/lib/default.nix
-index 169f013191b8..05e91f1cd27b 100644
+index f931524002f2..5299719bfd92 100644
 --- a/lib/default.nix
 +++ b/lib/default.nix
-@@ -10,6 +10,7 @@ let
+@@ -10,6 +10,8 @@ let
    lib = makeExtensible (self: let
      callLibs = file: import file { lib = self; };
    in {
 +    patchedFunction = x: x;
++
 
      # often used, or depending on very little
      trivial = callLibs ./trivial.nix;
 diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
-index ec6f410a48f6..3c6669988d2f 100644
+index bd3b27c00b55..3cfde568a714 100644
 --- a/nixos/modules/module-list.nix
 +++ b/nixos/modules/module-list.nix
-@@ -1505,4 +1505,10 @@
-   ./virtualisation/xe-guest-utilities.nix
-   ./virtualisation/xen-dom0.nix
-   { documentation.nixos.extraModules = [ ./virtualisation/qemu-vm.nix ]; }
+@@ -1818,4 +1818,10 @@
+       ./image/repart.nix
+     ];
+   }
 +  ({ lib, config, ... }: {
 +    options.patchedModule.test = lib.mkOption {
 +      default = null;
 +      example = "test";
 +    };
 +  })
  ]
-diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
-index 0c2a44d531df..299ff71619b6 100644
---- a/pkgs/top-level/all-packages.nix
-+++ b/pkgs/top-level/all-packages.nix
-@@ -42286,4 +42286,6 @@ with pkgs;
-   ssl-proxy = callPackage ../tools/networking/ssl-proxy { };
-
-   code-maat = callPackage ../development/tools/code-maat {};
-+
-+  flake-utils-plus-test = callPackage ../tools/misc/coreutils { };
- }
+diff --git a/pkgs/by-name/fl/flake-utils-plus-test/package.nix b/pkgs/by-name/fl/flake-utils-plus-test/package.nix
+new file mode 100644
+index 000000000000..ad5323375baf
+--- /dev/null
++++ b/pkgs/by-name/fl/flake-utils-plus-test/package.nix
+@@ -0,0 +1 @@
++{ coreutils }: coreutils