mirror of
https://github.com/kuhyx/utils.git
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Krzysztof kuhy Rudnicki
fff46de4c5
`crdt_sync` is pure Dart so it can run from CLI tools and headless systemd jobs, which means it takes closures instead of depending on flutter_secure_storage and google_sign_in. Every Flutter app then wrote the same ~390 lines to supply them, and five apps ended up carrying near-identical copies of firebase_backend.dart. Those copies drifted. `todo` gained an opt-out flag and a seeded-session path that home_inventory and wake_alarm never received, so the same bug was fixed in one copy and left live in the others -- which is the actual cost being paid here, not the line count. This package owns that glue once: the keystore adapter, the persisted per-install device id, the account store and a one-call bootstrap. A new app needs a SyncApp const and `openSync(kApp)`. The wrapper routes are a parameter rather than a constant, because todo's copy hardcoded its own `~/.config/todo/firebase_auth.json`. An extraction only one app could adopt would be worse than the copies. Also documents what made this hard to find: crdt_sync_dart's README covered only the *old* GitHub transport and never mentioned the Firebase surface at all, and sync_settings_ui -- a complete drop-in settings screen -- had no README whatsoever. The five existing apps stay on their copies and on crdt_sync_dart-v0.10.0. Migration is forward-only and those fallbacks are load-bearing; converging them is a separate task, and the README says so. 35 tests, 100% line coverage, no suppressions. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CFSGeWxHPY5rHUGrPqhcmG
40 lines
1.6 KiB
Dart
40 lines
1.6 KiB
Dart
/// The OS-keystore adapter every consuming app was writing by hand.
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///
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/// `crdt_sync` is pure Dart on purpose -- it runs from command-line tools and
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/// headless systemd jobs -- so it cannot depend on `flutter_secure_storage`
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/// and instead takes read/write/delete closures. Every Flutter app then wrote
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/// the same three-line adapter, and four of them now differ only in which
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/// bugs they have had fixed.
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///
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/// This file owns that adapter once.
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library;
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import 'package:crdt_sync/crdt_sync.dart';
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import 'package:flutter_secure_storage/flutter_secure_storage.dart';
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/// Storage options shared with the GitHub token these apps already keep.
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///
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/// Off Android's deprecated `encryptedSharedPreferences` path, and libsecret
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/// on Linux.
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const FlutterSecureStorage kSecureStorage = FlutterSecureStorage();
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/// Key the account blob (email + password) is stored under.
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const String kAccountKey = kFirebaseAccountKey;
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/// Key set when the user disconnects, to stop silent re-provisioning.
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///
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/// Without it the next launch re-adopts the account from whatever fallback is
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/// available and the disconnect button looks broken.
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const String kOptOutKey = kSyncAccountOptOutKey;
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/// A [FirebaseCredentialStore] over the platform keystore.
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///
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/// Pass [storage] only in tests; production uses [kSecureStorage].
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FirebaseCredentialStore keystoreCredentialStore({
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FlutterSecureStorage storage = kSecureStorage,
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}) => SecureCredentialStore(
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read: (key) => storage.read(key: key),
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write: (key, value) => storage.write(key: key, value: value),
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delete: (key) => storage.delete(key: key),
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);
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