chore(reporters): make it 3.11+ (and 4.0) compatible!

Signed-off-by: Raito Bezarius <raito@lix.systems>

buildbot_nix/__init__.py

@@ -19,6 +19,8 @@ from buildbot.www.auth import AuthBase
 from buildbot.www.oauth2 import OAuth2Auth
 from buildbot.changes.gerritchangesource import GerritChangeSource
 from buildbot.reporters.utils import getURLForBuildrequest
+from buildbot.reporters.generators.build import BuildStatusGenerator
+from buildbot.reporters.message import MessageFormatterFunction
 from buildbot.process.buildstep import EXCEPTION
 from buildbot.process.buildstep import SUCCESS
 from buildbot.process.results import worst_status
@@ -728,7 +730,20 @@ class PeriodicWithStartup(schedulers.Periodic):
             yield self.setState("last_build", None)
         yield super().activate()
 
-def gerritReviewCB(builderName, build, result, master, arg):
+def gerritReviewFmt(url, data):
+    if 'build' not in data:
+        raise ValueError('`build` is supposed to be present to format a build')
+
+    build = data['build']
+    if 'builder' not in build and 'name' not in build['builder']:
+        raise ValueError('either `builder` or `builder.name` is not present in the build dictionary, unexpected format request')
+
+    builderName = build['builder']['name']
+
+    if len(build['results']) != 1:
+        raise ValueError('this review request contains more than one build results, unexpected format request')
+
+    result = build['results'][0]
     if result == util.RETRY:
         return dict()
 
@@ -753,7 +768,7 @@ def gerritReviewCB(builderName, build, result, master, arg):
                 message += f" (see {', '.join(urls)})"
             message += "\n"
 
-    if arg:
+    if url:
         message += "\nFor more details visit:\n"
         message += build['url'] + "\n"
 
@@ -850,11 +865,17 @@ class GerritNixConfigurator(ConfiguratorBase):
             reporters.GerritStatusPush(self.gerrit_server, self.gerrit_user,
                                        port=self.gerrit_port,
                                        identity_file=self.gerrit_sshkey_path,
-                                       summaryCB=None,
-                                       startCB=None,
-                                       wantSteps=True,
-                                       reviewCB=gerritReviewCB,
-                                       reviewArg=self.url)
+                                       generators=[
+                                           # gerritReviewCB / self.url
+                                           BuildStatusGenerator(
+                                               message_formatter=MessageFormatterFunction(
+                                                   lambda data: gerritReviewFmt(self.url, data),
+                                                   "plain",
+                                                   want_properties=True,
+                                                   want_steps=True
+                                               ),
+                                           ),
+                                       ])
             # startCB, summaryCB are too noisy, we won't use them.
         )