commit | feb6aa2acf7cd0addef9496744d28c9374e129f4 | [log] [tgz] |
---|---|---|
author | Alexander Biggs <akbiggs@google.com> | Mon May 23 22:22:00 2022 +0000 |
committer | Alexander Biggs <akbiggs@google.com> | Mon May 23 22:22:00 2022 +0000 |
tree | a8b8c7f608129290076c036ce07b847e20e2b351 | |
parent | 97d0676ee8865baf03e09dc5b865c82a6248a201 [diff] |
[embedder] More bootstrapping. - Add basic ViewProvider impl. - Hack embedder platform to do inspect node logic. - Move infra scripts to infra folder. They're still not connected. - Break out a script to just build the engine artifacts without syncing them to a new git revision. This enables us to run Dart apps from the session again using just the workstation.qemu-x64 product bundle. I see the "Hello from Dart!" log again. Bug: 46971 Change-Id: I015642dbbd0624afb250204b897a5576da2478d8
The Flutter Embedder for Fuchsia is a new in-progress runtime for Flutter apps on Fuchsia. This runtime is built on top of Flutter's embedder platform.
This repository is a work in progress and should be considered experimental.
Install a Bazel version no older than the one defined in the WORKSPACE.bazel file, by following the instructions at https://bazel.build/install. In some Linux distributions, sudo apt-get install bazel
should be enough.
Make sure this repository has the required submodules:
git submodule update --recursive --init
Ensure that there are Fuchsia SSH keys in your host machine. You will need them for running the Fuchsia emulator.
[[ -f "${HOME}/.ssh/fuchsia_ed25519" ]] || ssh-keygen -P "" -t ed25519 -f "${HOME}/.ssh/fuchsia_ed25519" -C "${USER}@$(hostname -f) Shared SSH Key for Fuchsia" [[ -f "${HOME}/.ssh/fuchsia_authorized_keys" ]] || ssh-keygen -y -f "${HOME}/.ssh/fuchsia_ed25519" > "${HOME}/.ssh/fuchsia_authorized_keys"
Now the repository is ready to build the sample.
Fetch an emulator image and start an emulator:
tools/ffx product-bundle get workstation.qemu-x64 tools/ffx emu start --headless workstation.qemu-x64
(optional) Watch the device log in a separate window:
tools/ffx log
Run the sample app component:
scripts/build_and_run_sample_app.sh
TODO(akbiggs): Currently the component crashes on startup with an ambient_mark_vmo_exec
allowlist issue. We are talking to security to figure out how to handle this.
Occasionally you will need to update the Flutter Engine artifacts (embedder.h and libengine_flutter.so) that are used by the embedder to run Flutter apps. A script is provided for this workflow.
$ENGINE_DIR
should be set to the src
folder of your Flutter Engine checkout, for example ~/engine/src
.$FUCHSIA_EMBEDDER_DIR
should be set to your flutter-embedder.git checkout, for example ~/flutter-embedder
.$DEPOT_TOOLS
should be set to your depot_tools
location, for example ~/depot_tools
.git stash
or git commit
any local changes to the Flutter Engine or the script will fail.You can run the script with a flutter/engine
Git commit to sync the Engine artifacts to that revision.
scripts/sync_engine_artifacts_to_revision.sh <ENGINE_COMMIT_SHA>
A common workflow is to sync your Engine commit to the Flutter tool in this repository. To do this:
scripts/sync_engine_artifacts_to_revision.sh $(cat $FUCHSIA_EMBEDDER_DIR/third_party/dart-pkg/internal/flutter/flutter/bin/internal/engine.version)