357 lines
11 KiB
Dart
357 lines
11 KiB
Dart
// Copyright 2021 Sony Group Corporation. All rights reserved.
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// @dart = 2.8
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import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter_tools/src/android/android_device.dart';
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import 'package:flutter_tools/src/base/common.dart';
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import 'package:flutter_tools/src/base/logger.dart';
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import 'package:flutter_tools/src/base/os.dart';
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import 'package:flutter_tools/src/build_info.dart';
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import 'package:flutter_tools/src/convert.dart';
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import 'package:flutter_tools/src/device.dart';
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import 'package:flutter_tools/src/device_port_forwarder.dart';
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import 'package:flutter_tools/src/project.dart';
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import 'package:flutter_tools/src/protocol_discovery.dart';
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import 'package:meta/meta.dart';
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import 'package:process/process.dart';
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import 'elinux_builder.dart';
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import 'elinux_package.dart';
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/// eLinux device implementation.
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///
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/// See: [DesktopDevice] in `desktop_device.dart`
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class ELinuxDevice extends Device {
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ELinuxDevice(
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String id, {
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@required bool desktop,
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@required String backendType,
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@required String targetArch,
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@required Logger logger,
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@required ProcessManager processManager,
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@required OperatingSystemUtils operatingSystemUtils,
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}) : _desktop = desktop,
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_backendType = backendType,
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_targetArch = targetArch,
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_logger = logger,
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_processManager = processManager,
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_operatingSystemUtils = operatingSystemUtils,
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super(id,
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category: Category.desktop,
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platformType: PlatformType.custom,
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ephemeral: true);
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final bool _desktop;
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final String _backendType;
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final String _targetArch;
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final Logger _logger;
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final ProcessManager _processManager;
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final OperatingSystemUtils _operatingSystemUtils;
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final Set<Process> _runningProcesses = <Process>{};
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final ELinuxLogReader _logReader = ELinuxLogReader();
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@override
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Future<bool> get isLocalEmulator async => false;
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@override
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Future<String> get emulatorId async => null;
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@override
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Future<TargetPlatform> get targetPlatform async {
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// Use tester as a platform identifer for eLinux.
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// There's currently no other choice because getNameForTargetPlatform()
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// throws an error for unknown platform types.
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return TargetPlatform.tester;
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}
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@override
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bool supportsRuntimeMode(BuildMode buildMode) =>
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buildMode != BuildMode.jitRelease;
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@override
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Future<String> get sdkNameAndVersion async => _operatingSystemUtils.name;
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@override
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String get name => 'eLinux';
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@override
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Future<bool> isAppInstalled(ELinuxApp app, {String userIdentifier}) async {
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return true;
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}
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@override
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Future<bool> isLatestBuildInstalled(ELinuxApp app) async {
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return true;
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}
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@override
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Future<bool> installApp(ELinuxApp app, {String userIdentifier}) async {
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return true;
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}
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@override
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Future<bool> uninstallApp(ELinuxApp app, {String userIdentifier}) async {
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return true;
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}
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/// Source: [AndroidDevice.startApp] in `android_device.dart`
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@override
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Future<LaunchResult> startApp(
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ELinuxApp package, {
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String mainPath,
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String route,
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DebuggingOptions debuggingOptions,
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Map<String, dynamic> platformArgs,
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bool prebuiltApplication = false,
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bool ipv6 = false,
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String userIdentifier,
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}) async {
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if (!prebuiltApplication) {
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_logger.printTrace('Building app');
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await buildForDevice(
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package,
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buildInfo: debuggingOptions.buildInfo,
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mainPath: mainPath,
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);
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}
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// Ensure that the executable is locatable.
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final BuildMode buildMode = debuggingOptions?.buildInfo?.mode;
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final bool traceStartup = platformArgs['trace-startup'] as bool ?? false;
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final String executable = executablePathForDevice(package, buildMode);
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const String executableOptions = '--bundle=./';
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if (executable == null) {
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_logger.printError('Unable to find executable to run');
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return LaunchResult.failed();
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}
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final Process process = await _processManager.start(
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<String>[
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executable,
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executableOptions,
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if (_desktop && _backendType == 'wayland') '-d',
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...?debuggingOptions?.dartEntrypointArgs,
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],
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environment: _computeEnvironment(debuggingOptions, traceStartup, route),
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);
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_runningProcesses.add(process);
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unawaited(process.exitCode.then((_) => _runningProcesses.remove(process)));
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_logReader.initializeProcess(process);
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if (debuggingOptions?.buildInfo?.isRelease == true) {
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return LaunchResult.succeeded();
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}
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final ProtocolDiscovery observatoryDiscovery =
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ProtocolDiscovery.observatory(
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_logReader,
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devicePort: debuggingOptions?.deviceVmServicePort,
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hostPort: debuggingOptions?.hostVmServicePort,
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ipv6: ipv6,
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logger: _logger,
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);
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try {
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final Uri observatoryUri = await observatoryDiscovery.uri;
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if (observatoryUri != null) {
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onAttached(package, buildMode, process);
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return LaunchResult.succeeded(observatoryUri: observatoryUri);
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}
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_logger.printError(
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'Error waiting for a debug connection: '
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'The log reader stopped unexpectedly.',
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);
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} on Exception catch (error) {
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_logger.printError('Error waiting for a debug connection: $error');
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} finally {
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await observatoryDiscovery.cancel();
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}
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return LaunchResult.failed();
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}
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@override
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Future<bool> stopApp(ELinuxApp app, {String userIdentifier}) async {
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bool succeeded = true;
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// Walk a copy of _runningProcesses, since the exit handler removes from the
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// set.
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for (final Process process in Set<Process>.of(_runningProcesses)) {
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succeeded &= _processManager.killPid(process.pid);
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}
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return succeeded;
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}
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@override
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void clearLogs() {}
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@override
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FutureOr<DeviceLogReader> getLogReader({
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ELinuxApp app,
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bool includePastLogs = false,
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}) =>
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_logReader;
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@override
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DevicePortForwarder get portForwarder => null;
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@override
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bool isSupported() => true;
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@override
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bool get supportsScreenshot => false;
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@override
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bool isSupportedForProject(FlutterProject flutterProject) {
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return flutterProject.isModule &&
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flutterProject.directory.childDirectory('elinux').existsSync();
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}
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@override
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Future<void> dispose() async {}
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Future<void> buildForDevice(
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ELinuxApp package, {
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String mainPath,
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BuildInfo buildInfo,
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}) async {
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final FlutterProject project = FlutterProject.current();
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final ELinuxBuildInfo eLinuxBuildInfo = ELinuxBuildInfo(
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buildInfo,
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targetArch: _targetArch,
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targetBackendType: _backendType,
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);
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await ELinuxBuilder.buildBundle(
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project: project,
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targetFile: mainPath,
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eLinuxBuildInfo: eLinuxBuildInfo,
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);
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package = ELinuxApp.fromELinuxProject(project);
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}
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String executablePathForDevice(ELinuxApp package, BuildMode buildMode) {
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return package.executable(buildMode, _targetArch);
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}
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void onAttached(ELinuxApp package, BuildMode buildMode, Process process) {}
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/// Computes a set of environment variables used to pass debugging information
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/// to the engine without interfering with application level command line
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/// arguments.
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///
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/// The format of the environment variables is:
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/// * FLUTTER_ENGINE_SWITCHES to the number of switches.
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/// * FLUTTER_ENGINE_SWITCH_<N> (indexing from 1) to the individual switches.
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Map<String, String> _computeEnvironment(
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DebuggingOptions debuggingOptions, bool traceStartup, String route) {
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int flags = 0;
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final Map<String, String> environment = <String, String>{};
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void addFlag(String value) {
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flags += 1;
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environment['FLUTTER_ENGINE_SWITCH_$flags'] = value;
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}
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void finish() {
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environment['FLUTTER_ENGINE_SWITCHES'] = flags.toString();
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}
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addFlag('enable-dart-profiling=true');
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addFlag('enable-background-compilation=true');
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if (traceStartup) {
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addFlag('trace-startup=true');
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}
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if (route != null) {
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addFlag('route=$route');
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}
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if (debuggingOptions.enableSoftwareRendering) {
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addFlag('enable-software-rendering=true');
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}
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if (debuggingOptions.skiaDeterministicRendering) {
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addFlag('skia-deterministic-rendering=true');
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}
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if (debuggingOptions.traceSkia) {
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addFlag('trace-skia=true');
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}
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if (debuggingOptions.traceAllowlist != null) {
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addFlag('trace-allowlist=${debuggingOptions.traceAllowlist}');
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}
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if (debuggingOptions.traceSkiaAllowlist != null) {
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addFlag('trace-skia-allowlist=${debuggingOptions.traceSkiaAllowlist}');
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}
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if (debuggingOptions.traceSystrace) {
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addFlag('trace-systrace=true');
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}
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if (debuggingOptions.endlessTraceBuffer) {
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addFlag('endless-trace-buffer=true');
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}
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if (debuggingOptions.dumpSkpOnShaderCompilation) {
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addFlag('dump-skp-on-shader-compilation=true');
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}
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if (debuggingOptions.cacheSkSL) {
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addFlag('cache-sksl=true');
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}
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if (debuggingOptions.purgePersistentCache) {
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addFlag('purge-persistent-cache=true');
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}
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// Options only supported when there is a VM Service connection between the
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// tool and the device, usually in debug or profile mode.
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if (debuggingOptions.debuggingEnabled) {
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if (debuggingOptions.deviceVmServicePort != null) {
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addFlag('observatory-port=${debuggingOptions.deviceVmServicePort}');
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}
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if (debuggingOptions.buildInfo.isDebug) {
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addFlag('enable-checked-mode=true');
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addFlag('verify-entry-points=true');
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}
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if (debuggingOptions.startPaused) {
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addFlag('start-paused=true');
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}
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if (debuggingOptions.disableServiceAuthCodes) {
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addFlag('disable-service-auth-codes=true');
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}
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final String dartVmFlags = computeDartVmFlags(debuggingOptions);
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if (dartVmFlags.isNotEmpty) {
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addFlag('dart-flags=$dartVmFlags');
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}
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if (debuggingOptions.useTestFonts) {
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addFlag('use-test-fonts=true');
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}
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if (debuggingOptions.verboseSystemLogs) {
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addFlag('verbose-logging=true');
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}
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}
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finish();
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return environment;
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}
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}
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class ELinuxLogReader extends DeviceLogReader {
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final StreamController<List<int>> _inputController =
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StreamController<List<int>>.broadcast();
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void initializeProcess(Process process) {
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process.stdout.listen(_inputController.add);
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process.stderr.listen(_inputController.add);
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process.exitCode.whenComplete(_inputController.close);
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}
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@override
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Stream<String> get logLines {
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return _inputController.stream
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.transform(utf8.decoder)
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.transform(const LineSplitter());
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}
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@override
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String get name => 'eLinux';
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@override
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void dispose() {}
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}
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