ethtool 0 -> 1
attrpath: ethtool
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoSha256 or cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorSha256 or vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] 
Going to be running update for following packages:
 - ethtool-6.7

Press Enter key to continue...
Running update for:
 - ethtool-6.7: UPDATING ...
 - ethtool-6.7: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/tools/misc/ethtool/default.nix b/pkgs/tools/misc/ethtool/default.nix
index 72590420e1a1..13b1b4815884 100644
--- a/pkgs/tools/misc/ethtool/default.nix
+++ b/pkgs/tools/misc/ethtool/default.nix
@@ -9,11 +9,11 @@
 
 stdenv.mkDerivation rec {
   pname = "ethtool";
-  version = "6.7";
+  version = "6.9";
 
   src = fetchurl {
     url = "mirror://kernel/software/network/${pname}/${pname}-${version}.tar.xz";
-    sha256 = "sha256-w65SawHOTY32x5SrFw3kpBBNER6o2Ns/H9fCX8uQVhk=";
+    sha256 = "sha256-pxsDVAEGYcXPF4vGBu1Q/LkYBc8Yl60OsoGDh6X9DNk=";
   };
 
   nativeBuildInputs = [

No auto update branch exists
Old version 6.7" not present in staging derivation file with contents: { lib
, stdenv
, fetchurl
, fetchpatch
, libmnl
, pkg-config
, writeScript
}:

stdenv.mkDerivation rec {
  pname = "ethtool";
  version = "6.9";

  src = fetchurl {
    url = "mirror://kernel/software/network/${pname}/${pname}-${version}.tar.xz";
    sha256 = "sha256-pxsDVAEGYcXPF4vGBu1Q/LkYBc8Yl60OsoGDh6X9DNk=";
  };

  nativeBuildInputs = [
    pkg-config
  ];

  buildInputs = [
    libmnl
  ];

  passthru = {
    updateScript = writeScript "update-ethtool" ''
      #!/usr/bin/env nix-shell
      #!nix-shell -i bash -p curl pcre common-updater-scripts

      set -eu -o pipefail

      # Expect the text in format of '<a href="ethtool-VER.tar.xz">...</a>'
      # The page always lists versions newest to oldest. Pick the first one.
      new_version="$(curl -s https://mirrors.edge.kernel.org/pub/software/network/ethtool/ |
          pcregrep -o1 '<a href="ethtool-([0-9.]+)[.]tar[.]xz">' |
          head -n1)"
      update-source-version ${pname} "$new_version"
    '';
  };

  meta = with lib; {
    description = "Utility for controlling network drivers and hardware";
    homepage = "https://www.kernel.org/pub/software/network/ethtool/";
    license = licenses.gpl2Plus;
    platforms = platforms.linux;
    maintainers = with maintainers; [ bjornfor ];
    mainProgram = "ethtool";
  };
}