feat: add CI reflection warning check

Add automated reflection warning detection to GitHub Actions CI pipeline that fails builds early when reflection warnings are detected.

Implementation:
- Create check-reflection.clj script that systematically loads all component namespaces
- Integrate check into CI workflow positioned after style check but before tests
- Add reflection-warnings.log to .gitignore

Benefits:
- Prevents performance-impacting reflection from being merged
- Fast feedback loop with comprehensive coverage across polylith architecture
- Zero reflection warnings currently in codebase

Author: hugoduncan

.github/workflows/test.yml

@@ -44,6 +44,18 @@ jobs:
     - name: Check code style
       run: cljstyle check
 
+    - name: Check for reflection warnings
+      run: |
+        clojure -M:dev scripts/check-reflection.clj 2>&1 | tee reflection-warnings.log
+
+        if grep -q "Reflection warning" reflection-warnings.log; then
+          echo "❌ Reflection warnings found!"
+          grep "Reflection warning" reflection-warnings.log
+          exit 1
+        else
+          echo "✅ No reflection warnings found"
+        fi
+
     - name: Run unit tests
       run: clojure -M:kaocha:dev:test
 

.gitignore

@@ -0,0 +1 @@
+/reflection-warnings.log

scripts/check-reflection.clj

@@ -0,0 +1,33 @@
+(set! *warn-on-reflection* true)
+(require 'clojure.java.io)
+(require 'clojure.string)
+
+(defn file->namespace
+  [^java.io.File file]
+  (-> (.getPath file)
+      (clojure.string/replace #"^(components|bases)/[^/]+/src/" "")
+      (clojure.string/replace #"\.clj[cs]?$" "")
+      (clojure.string/replace #"/" ".")
+      (clojure.string/replace #"_" "-")
+      symbol))
+
+(defn find-source-files
+  []
+  (->> [(clojure.java.io/file "components")
+        (clojure.java.io/file "bases")]
+       (filter (fn [^java.io.File f] (.exists f)))
+       (mapcat file-seq)
+       (filter (fn [^java.io.File f]
+                 (and (.isFile f)
+                      (re-find #"\.clj[cs]?$" (.getName f))
+                      (re-find #"/src/" (.getPath f)))))
+       (map file->namespace)
+       distinct))
+
+(let [namespaces (find-source-files)]
+  (println "Loading" (count namespaces) "namespaces...")
+  (doseq [ns-sym namespaces]
+    (try
+      (require ns-sym)
+      (catch Exception e
+        (println "Warning: Could not load" ns-sym ":" (.getMessage e))))))