Report unmapped fields in integrity checks + delete Package.isWithheld and withheldReason

CHANGELOG.md

@@ -4,6 +4,7 @@ AppEngine version, listed here to ease deployment and troubleshooting.
 ## Next Release (replace with git tag when deployed)
  * Bump runtimeVersion to `2024.12.12`.
  * Upgraded runtime Dart SDK to `3.6.0`.
+ * Note: Started reporting unmapped fields and deleting `Package.isWithheld` and `Package.withheldReason`.
 
 ## `20241212t111200-all`
  * Bump runtimeVersion to `2024.12.11`.

app/lib/shared/integrity.dart

@@ -40,6 +40,11 @@ class IntegrityChecker {
   final DatastoreDB _db;
   final int _concurrency;
 
+  static const _knownUnmappedFields = {
+    'Package.isWithheld',
+    'Package.withheldReason',
+  };
+  final _unmappedFields = <String>{};
   final _userToOauth = <String, String?>{};
   final _oauthToUser = <String, String>{};
   final _deletedUsers = <String>{};
@@ -93,7 +98,13 @@ class IntegrityChecker {
       yield* _checkAuditLogs();
       yield* _checkModerationCases();
       yield* _reportPubspecVersionIssues();
-      // TODO: report unmapped properties
+
+      if (_unmappedFields.isNotEmpty) {
+        for (final field in _unmappedFields) {
+          if (_knownUnmappedFields.contains(field)) continue;
+        yield 'Unmapped field found: $field.';
+        }
+      }
     } finally {
       _httpClient.close();
     }
@@ -448,6 +459,7 @@ class IntegrityChecker {
     }
 
     await for (final pvi in pviQuery.run()) {
+      _updateUnmappedFields(pvi);
       final key = pvi.qualifiedVersionKey;
       pviKeys.add(key);
       yield* checkPackageVersionKey('PackageVersionInfo', key);
@@ -475,6 +487,7 @@ class IntegrityChecker {
       ..filter('package =', p.name);
     final foundAssetIds = <String?>{};
     await for (final pva in pvaQuery.run()) {
+      _updateUnmappedFields(pva);
       final key = pva.qualifiedVersionKey;
       if (pva.id !=
           Uri(pathSegments: [pva.package!, pva.version!, pva.kind!]).path) {
@@ -907,13 +920,23 @@ class IntegrityChecker {
     }
   }
 
+  void _updateUnmappedFields(Model m) {
+    if (m is ExpandoModel && m.additionalProperties.isNotEmpty) {
+      for (final key in m.additionalProperties.keys) {
+        final field = [m.runtimeType.toString(), key].join('.');
+        _unmappedFields.add(field);
+      }
+    }
+  }
+
   Stream<String> _queryWithPool<R extends Model>(
       Stream<String> Function(R model) fn) async* {
     final query = _db.query<R>();
     final pool = Pool(_concurrency);
     final futures = <Future<List<String>>>[];
     try {
       await for (final m in query.run()) {
+        _updateUnmappedFields(m);
         final f = pool.withResource(() => fn(m).toList());
         futures.add(f);
       }

app/lib/tool/backfill/backfill_new_fields.dart

@@ -4,6 +4,7 @@
 
 import 'package:clock/clock.dart';
 import 'package:logging/logging.dart';
+import 'package:meta/meta.dart';
 import 'package:pub_dev/account/models.dart';
 import 'package:pub_dev/package/api_export/api_exporter.dart';
 import 'package:pub_dev/package/backend.dart';
@@ -20,9 +21,11 @@ final _logger = Logger('backfill_new_fields');
 /// release could remove the backfill from here.
 Future<void> backfillNewFields() async {
   await migrateIsBlocked();
+  await _removeKnownUnmappedFields();
 }
 
 /// Migrates entities from the `isBlocked` fields to the new `isModerated` instead.
+@visibleForTesting
 Future<void> migrateIsBlocked() async {
   _logger.info('Migrating isBlocked...');
   final pkgQuery = dbService.query<Package>()..filter('isBlocked =', true);
@@ -88,3 +91,18 @@ Future<void> migrateIsBlocked() async {
 
   _logger.info('isBlocked migration completed.');
 }
+
+Future<void> _removeKnownUnmappedFields() async {
+  await for (final p in dbService.query<Package>().run()) {
+    if (p.additionalProperties.isEmpty) continue;
+    if (p.additionalProperties.containsKey('isWithheld') ||
+        p.additionalProperties.containsKey('withheldReason')) {
+      await withRetryTransaction(dbService, (tx) async {
+        final pkg = await tx.lookupValue<Package>(p.key);
+        pkg.additionalProperties.remove('isWithheld');
+        pkg.additionalProperties.remove('withheldReason');
+        tx.insert(pkg);
+      });
+    }
+  }
+}