Release builds had R8 and resource shrinking off, so every class of
every dependency went into the APK unminified: the published 0.1.62 is
42.8 MB for arm64, 25.85 MB of it dex (PF9 in the audit).
Turn both on through the properties build.gradle already reads
(`android.enableMinifyInReleaseBuilds` and
`android.enableShrinkResourcesInReleaseBuilds`). The consumer rules of
React Native, Expo, Firebase, ML Kit and the other libraries cover what
they load by reflection. The app's own package is kept whole, which
costs a few KB and keeps its frames readable in an obfuscated stack
trace.
Measured on a local x86_64 release build:
- APK: 44.7 MB -> 38.0 MB (download size 23.8 MB -> 17.2 MB)
- dex: 30.4 MB in 4 files -> 11.3 MB in 2 files
- classes: 27,631 -> 16,724
With `-dontobfuscate` the APK would be 38.8 MB (13.5 MB of dex), so
obfuscation stays on. Library frames in a release stack trace are now
obfuscated; retrace them with that build's
`android/app/build/outputs/mapping/release/mapping.txt`.
Checked on the emulator: cold start in light and dark mode, German and
Russian strings, SENDTO and VIEW mailto and SEND share intents, every
sign-in screen, the QR scanner with ML Kit, and an FCM data message
starting the headless push task.
AsyncStorage caps its Android SQLite database at 6 MB unless
`AsyncStorage_db_size_in_MB` is set. The offline cache keeps message
bodies in that database, defaults to 50 MB and can be set to 500 MB,
so it filled the database long before its own limit, after which every
AsyncStorage write failed, including the account registry, the outbox
and the mail list cache. Raise the ceiling to 1 GB. It is a maximum,
not a preallocation, and needs a native rebuild to take effect.
CI:
- .github/workflows/release-android.yml builds APK on release publish
and via workflow_dispatch, attaches it to the release.
- android/app/build.gradle: optional release signingConfig driven by
Gradle properties (ANDROID_KEYSTORE_BASE64 secret etc.); falls back
to the debug keystore when no secrets are set.
- .gitignore: untrack /android so the runner can build directly;
ignore build outputs (build/, .cxx/), Metro/Expo dev logs, scratch.
Track android/ sources including BulwarkFcmPackage.kt and
google-services.json (Firebase Android keys are public per Google's
docs and intended to ship in the APK).
JS sync: push notifications + background task, vacation responder
(api + store), contact activity component, search utilities, settings
polish, calendar/contacts/email store and screen tweaks.
Tooling: scripts/poll-reload.mjs — Windows polling-watcher that hits
Metro /reload on file change (workaround for unreliable fs.watch
without Watchman).
Linus Rath