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flutter_wlroots

Running demo

Environment setup

  1. Make sure the engine commit hash set in subprojects/flutter_embedder/meson.build matches what's set in flutter/bin/internal/engine.version. (Shorthash can be seen by doing flutter doctor -v)
  2. If you changed the hash in the step above, make sure to run make delete_downloaded_engine

Build embedder

meson build
ninja -C build

Build demo app

make demo

Run demo

Make sure you are in the root directory of the git repo. This is important.

Run:

build/examples/simple

Run release binary:

Every command should be run from demo/ project directory

YOU NEED TO COPY libflutter_engine.so from your built engine to subprojects/flutter_embedder/. (Compiled engine can be found in engine/src/out/host_release ) Instructions how to build engine from source can be found here: https://github.com/flutter/flutter/wiki/Setting-up-the-Engine-development-environment

Export build engine path:

export LOCAL_ENGINE=/home/charafau/Utils/engine/src/out/host_release

Get flutter packages for project using built engine

flutter --local-engine $LOCAL_ENGINE build linux --release

Generate .dill files

$LOCAL_ENGINE/dart-sdk/bin/dart $LOCAL_ENGINE/dart-sdk/bin/snapshots/frontend_server.dart.snapshot --sdk-root $LOCAL_ENGINE/flutter_patched_sdk --target=flutter --aot --tfa -Ddart.vm.product=true --packages .packages --output-dill build/kernel_snapshot.dill --verbose --depfile build/kernel_snapshot.d package:demo/main.dart

Generate app snapshots for release

$LOCAL_ENGINE/gen_snapshot --deterministic --snapshot_kind=app-aot-elf --elf=build/flutter_assets/app.so build/kernel_snapshot.dill

OR if you want to strip debug symbols

$LOCAL_ENGINE/gen_snapshot --deterministic --snapshot_kind=app-aot-elf --elf=build/flutter_assets/app.so --strip build/kernel_snapshot.dill

Copy app.so to build/example/flutter_assets/

Run:

build/examples/simple