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Joel Winarske
8f12358a34
HostProvisioner gains availableUpdates() — package names with an update available (null when the backend can't report it; empty = up to date). PackageKit implements it via GetUpdates (the same data pkcon get-updates uses); brew/winget return null for now. emb doctor, after confirming the backend is available, prints the update count (+ a short preview), labeled as reflecting the last cache refresh. It stays read-only (no refresh) and never fails the command on the update check. Adds a doctor_command test (the feature had none): wiring, up-to-date, unsupported, error-tolerance, and unavailable-skips-the-check. README + example/README document the new line. Signed-off-by: Joel Winarske <joel.winarske@gmail.com>
emb examples
emb is a CLI. Install it, then run the commands below. See the
top-level README for the full command/flag reference.
# from the package root
dart pub get
dart pub global activate --source=path . # puts `emb` on PATH
# or run without activating: dart run bin/emb.dart <command>
1. Inspect the host
emb doctor
Host
os: linux
arch: x86_64 (flutter: x64, engine: x86_64)
host type: fedora
version: 43
Package backend
selected: packagekit
✓ packagekit is available
✓ 3 updates available
bash, curl, mesa-libEGL, …
2. Provision a workspace
Installs host dependencies (one transaction), clones repos, installs the
Flutter SDK, and fetches the prebuilt engine — then writes setup_env.sh.
emb setup --config ../configs --yes
. ./setup_env.sh # Flutter/Dart on PATH, FLUTTER_WORKSPACE, …
Run phases individually if you prefer: emb deps, emb sync, emb flutter,
emb engine.
3. Build an ivi-homescreen bundle
# Release AOT bundle for a Raspberry Pi (arm64), cross-compiled from x86_64:
emb bundle --app-path ./app/my_app --arch arm64 --build
# Debug (JIT) bundle for the host:
emb bundle --app-path ./app/my_app --mode debug --build
The bundle directory (data/flutter_assets, data/icudtl.dat,
lib/libflutter_engine.so, and lib/libapp.so for profile/release) is what
ivi-homescreen runs:
ivi-homescreen --b=<workspace>/bundle/my_app-release-arm64
4. Self-describing packages
A package that ships an emb.yaml (or an emb: key in pubspec.yaml) builds
itself with no flags:
emb build ./app/my_app # builds the manifest's arch × mode matrix