Resolve "Deprecate Providers package in favor of Worker"

services/data_service/internal/manager/helper.go

@@ -1 +1,27 @@
 package manager
+
+func workerEntryKey(w WorkerEntry) string {
+	return w.Type + "|" + string(w.Spec) + "|" + string(w.Unit)
+}
+
+func workerEntryDiffs(old, nw []WorkerEntry) (added, removed []WorkerEntry) {
+	oldKeys := make(map[string]struct{}, len(old))
+	newKeys := make(map[string]struct{}, len(nw))
+
+	for _, w := range old {
+		oldKeys[workerEntryKey(w)] = struct{}{}
+	}
+	for _, w := range nw {
+		k := workerEntryKey(w)
+		newKeys[k] = struct{}{}
+		if _, ok := oldKeys[k]; !ok {
+			added = append(added, w)
+		}
+	}
+	for _, w := range old {
+		if _, ok := newKeys[workerEntryKey(w)]; !ok {
+			removed = append(removed, w)
+		}
+	}
+	return added, removed
+}