Add post-execution kafka warnings checks

.github/workflows/ci.yml

@@ -63,6 +63,9 @@ jobs:
           GITHUB_COVERAGE: ${{matrix.coverage}}
         run: bundle exec rspec
 
+      - name: Check Kafka logs for unexpected warnings
+        run: bin/verify_kafka_warnings
+
   diffend:
     runs-on: ubuntu-latest
     strategy:

bin/verify_kafka_warnings

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Checks Kafka logs for warning patterns that indicate incorrect Karafka usage
+# These warnings should never occur as Karafka should prevent such operations
+
+patterns=(
+   "as well as transactional"
+)
+
+found=0
+for pattern in "${patterns[@]}"; do
+   output=$(docker logs kafka | grep WARN | grep "$pattern")
+   if [ -n "$output" ]; then
+       echo "Found warning pattern: $pattern"
+       echo "$output"
+       found=1
+   fi
+done
+
+exit $found

waterdrop.gemspec

@@ -28,7 +28,7 @@ Gem::Specification.new do |spec|
 
   spec.cert_chain    = %w[certs/cert.pem]
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(spec)/}) }
-  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
+  spec.executables   = []
   spec.require_paths = %w[lib]
 
   spec.metadata = {