sabnzbd: override sabctools version and add updateScript

pkgs/by-name/sa/sabnzbd/package.nix

@@ -3,6 +3,7 @@
   stdenv,
   coreutils,
   fetchFromGitHub,
+  fetchPypi,
   python3,
   par2cmdline-turbo,
   unzip,
@@ -14,6 +15,9 @@
 }:
 
 let
+  sabctoolsVersion = "8.2.0";
+  sabctoolsHash = "sha256-dOMNZoKWQxHJt6yHiNKVtpnYvLJkK8nktOm+djsSTcM=";
+
   pythonEnv = python3.withPackages (
     ps: with ps; [
       apprise
@@ -42,7 +46,15 @@ let
       python-dateutil
       pytz
       rebulk
-      sabctools
+      # sabnzbd requires a specific version of sabctools
+      (sabctools.overridePythonAttrs (old: {
+        version = sabctoolsVersion;
+        src = fetchPypi {
+          pname = "sabctools";
+          version = sabctoolsVersion;
+          hash = sabctoolsHash;
+        };
+      }))
       sabyenc3
       sgmllib3k
       six
@@ -86,8 +98,9 @@ stdenv.mkDerivation rec {
     runHook postInstall
   '';
 
-  passthru.tests = {
-    smoke-test = nixosTests.sabnzbd;
+  passthru = {
+    tests.smoke-test = nixosTests.sabnzbd;
+    updateScript = ./update.sh;
   };
 
   meta = with lib; {

pkgs/by-name/sa/sabnzbd/update.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p nix common-updater-scripts gnugrep gnused nurl
+
+# shellcheck shell=bash
+
+set -euo pipefail
+
+latestVersion=$(list-git-tags --url=https://github.com/sabnzbd/sabnzbd | grep -E '^[0-9.]+$' | sort --reverse --numeric-sort | head -n 1)
+currentVersion=$(nix-instantiate --eval -E "with import ./. {}; sabnzbd.version or (lib.getVersion sabnzbd)" | tr -d '"')
+
+if [[ "$latestVersion" == "$currentVersion" ]]; then
+    echo "sabnzbd already latest version $latestVersion"
+    exit 0
+fi
+
+echo "sabnzbd updating $currentVersion -> $latestVersion"
+update-source-version sabnzbd "$latestVersion"
+
+sabctoolsVersion=$(curl -s "https://raw.githubusercontent.com/sabnzbd/sabnzbd/$latestVersion/requirements.txt" | grep sabctools | cut -f 3 -d =)
+sabctoolsHash=$(nurl --hash https://pypi.org/project/sabctools "$sabctoolsVersion")
+
+sed -i -E -e "s#sabctoolsVersion = \".*\"#sabctoolsVersion = \"$sabctoolsVersion\"#" ./pkgs/by-name/sa/sabnzbd/package.nix
+sed -i -E -e "s#sabctoolsHash = \".*\"#sabctoolsHash = \"$sabctoolsHash\"#" ./pkgs/by-name/sa/sabnzbd/package.nix

pkgs/development/python-modules/sabctools/default.nix

@@ -7,7 +7,7 @@
 }:
 buildPythonPackage rec {
   pname = "sabctools";
-  version = "8.2.3"; # needs to match version sabnzbd expects, e.g. https://github.com/sabnzbd/sabnzbd/blob/4.0.x/requirements.txt#L3
+  version = "8.2.3";
   pyproject = true;
 
   src = fetchPypi {