billsplit had never produced an Android APK. file_picker 11.0.3 — the latest
release on pub.dev — is wedged under AGP 9 in both directions: it skips
applying the Kotlin Gradle Plugin when AGP >= 9, so with built-in Kotlin off
its own Kotlin never compiles (`cannot find symbol: FilePickerPlugin`), and
with built-in Kotlin on its buildscript leaks KGP onto the global classpath
via rootProject.allprojects, which AGP then rejects for every module.
The app's Gradle config was never at fault: android/app/build.gradle.kts and
settings.gradle.kts are byte-identical to habit_stack, home_inventory and
diet_guard_app, which all build. Only the dependency differed, so the fix is
the dependency — the toolchain stays on the house-standard AGP 9.
Ported both call sites to the official file_selector. Its save flow returns a
destination and leaves the write to the caller, where file_picker wrote the
bytes inside the plugin; that write now goes through an injectable seam
because a real dart:io future never completes inside testWidgets' fake-async
zone, so a widget test could otherwise never observe the resulting snackbar.
The test double moves from a MethodChannel mock to a FileSelectorPlatform fake
(file_selector speaks Pigeon, so a channel mock would not intercept it), and a
plain non-widget test covers the real on-disk writer to hold 100% coverage
without an ignore.
The launcher icon is now verified from the built artifact: the ic_launcher
assets unzipped from the APK render as the charcoal + gold perforated receipt,
not the stock Flutter beach. Peak build footprint is 1.86 GiB, inside budget.
Also rewrites ci_mirror.sh to run its gates in a disposable worktree at HEAD.
`pre-commit run --all-files` stashes the live tree, and in a shared checkout
that made an unrelated agent's uncommitted work collide with hook auto-fixes,
failing the push while blaming an innocent hook — and putting that work inside
a stash window, which memories/git-rules.md forbids. A clean worktree needs no
stash and is a truer mirror of CI, which never sees a dirty file.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
billsplit was a standalone Flutter app in ~/Downloads with one commit and no
git remote — that directory was the only copy of its history.
Three things the move needed beyond copying the tree:
- The root .gitignore silently swallowed 32 of its files (*.png, *.ico,
*.manifest). Ignored files do not error on `git add`, they just vanish, so
this would have committed an app that cannot build. Added a trailing block
of ! overrides plus .binary-allowlist (which did not exist yet) — the
documented in-repo exception for binaries a build genuinely needs. The
../testsAndMisc_binaries/ symlink scheme does not apply: those directories
are gone, and a symlinked PNG breaks a fresh clone.
- billsplit/.github/workflows/ci.yaml was inert once nested; GitHub only reads
workflows at the repository root. Relocated with a working-directory and a
billsplit/** path filter.
- The app's coverage gate moved to python_pkg/billsplit_coverage/ so every
Python file stays under python_pkg/, and gained a test suite at 100% branch
coverage as that location requires. billsplit/ now holds only Dart.
Also replaces the stock Flutter icon with a family icon from the shared
generator. The glyph is a filled silhouette because the family's 72px stroke
cannot carry a fine torn edge, and the split is an evenodd-cut perforation so
the holes stay transparent on the foreground and monochrome layers.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
