mirror of
https://github.com/flutter/flutter.git
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426 lines
16 KiB
Dart
426 lines
16 KiB
Dart
// Copyright 2015 The Chromium 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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import 'dart:async';
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import '../base/common.dart';
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import '../base/file_system.dart';
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import '../base/time.dart';
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import '../base/utils.dart';
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import '../build_info.dart';
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import '../cache.dart';
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import '../device.dart';
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import '../globals.dart';
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import '../ios/mac.dart';
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import '../resident_runner.dart';
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import '../run_cold.dart';
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import '../run_hot.dart';
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import '../runner/flutter_command.dart';
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import '../tracing.dart';
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import 'daemon.dart';
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abstract class RunCommandBase extends FlutterCommand {
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// Used by run and drive commands.
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RunCommandBase({ bool verboseHelp = false }) {
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addBuildModeFlags(defaultToRelease: false, verboseHelp: verboseHelp);
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addDynamicModeFlags(verboseHelp: verboseHelp);
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addDynamicPatchingFlags(verboseHelp: verboseHelp);
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usesFlavorOption();
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argParser
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..addFlag('trace-startup',
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negatable: false,
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help: 'Trace application startup, then exit, saving the trace to a file.',
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)
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..addOption('route',
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help: 'Which route to load when running the app.',
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)
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..addFlag('train',
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hide: !verboseHelp,
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negatable: false,
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help: 'Save Dart runtime compilation trace to a file. '
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'Compilation trace will be saved to a file specified by --compilation-trace-file '
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'when \'flutter run --dynamic --profile --train\' exits. '
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'This file contains a list of Dart symbols that were compiled by the runtime JIT '
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'compiler up to that point. This file can be used in subsequent --dynamic builds '
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'to precompile some code by the offline compiler. '
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'This flag is only allowed when running as --dynamic --profile (recommended) or '
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'--debug (may include unwanted debug symbols).'
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)
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..addOption('target-platform',
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defaultsTo: 'default',
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allowed: <String>['default', 'android-arm', 'android-arm64', 'android-x86', 'android-x64'],
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help: 'Specify the target platform when building the app for an '
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'Android device.\nIgnored on iOS.');
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usesTargetOption();
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usesPortOptions();
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usesIpv6Flag();
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usesPubOption();
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usesIsolateFilterOption(hide: !verboseHelp);
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}
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bool get traceStartup => argResults['trace-startup'];
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String get route => argResults['route'];
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}
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class RunCommand extends RunCommandBase {
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RunCommand({ bool verboseHelp = false }) : super(verboseHelp: verboseHelp) {
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requiresPubspecYaml();
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usesFilesystemOptions(hide: !verboseHelp);
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argParser
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..addFlag('start-paused',
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negatable: false,
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help: 'Start in a paused mode and wait for a debugger to connect.',
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)
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..addFlag('enable-software-rendering',
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negatable: false,
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help: 'Enable rendering using the Skia software backend. '
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'This is useful when testing Flutter on emulators. By default, '
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'Flutter will attempt to either use OpenGL or Vulkan and fall back '
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'to software when neither is available.',
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)
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..addFlag('skia-deterministic-rendering',
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negatable: false,
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help: 'When combined with --enable-software-rendering, provides 100% '
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'deterministic Skia rendering.',
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)
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..addFlag('trace-skia',
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negatable: false,
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help: 'Enable tracing of Skia code. This is useful when debugging '
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'the GPU thread. By default, Flutter will not log skia code.',
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)
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..addFlag('trace-systrace',
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negatable: false,
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help: 'Enable tracing to the system tracer. This is only useful on '
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'platforms where such a tracer is available (Android and Fuchsia).',
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)
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..addFlag('await-first-frame-when-tracing',
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defaultsTo: true,
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help: 'Whether to wait for the first frame when tracing startup ("--trace-startup"), '
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'or just dump the trace as soon as the application is running. The first frame '
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'is detected by looking for a Timeline event with the name '
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'"${Tracing.firstUsefulFrameEventName}". '
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'By default, the widgets library\'s binding takes care of sending this event. ',
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)
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..addFlag('use-test-fonts',
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negatable: true,
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help: 'Enable (and default to) the "Ahem" font. This is a special font '
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'used in tests to remove any dependencies on the font metrics. It '
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'is enabled when you use "flutter test". Set this flag when running '
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'a test using "flutter run" for debugging purposes. This flag is '
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'only available when running in debug mode.',
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)
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..addFlag('build',
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defaultsTo: true,
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help: 'If necessary, build the app before running.',
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)
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..addOption('use-application-binary',
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hide: !verboseHelp,
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help: 'Specify a pre-built application binary to use when running.',
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)
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..addFlag('track-widget-creation',
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hide: !verboseHelp,
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help: 'Track widget creation locations.',
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)
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..addOption('project-root',
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hide: !verboseHelp,
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help: 'Specify the project root directory.',
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)
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..addFlag('machine',
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hide: !verboseHelp,
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negatable: false,
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help: 'Handle machine structured JSON command input and provide output '
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'and progress in machine friendly format.',
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)
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..addFlag('hot',
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negatable: true,
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defaultsTo: kHotReloadDefault,
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help: 'Run with support for hot reloading. Only available for debug mode. Not available with "--trace-startup".',
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)
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..addFlag('resident',
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negatable: true,
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defaultsTo: true,
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hide: !verboseHelp,
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help: 'Stay resident after launching the application. Not available with "--trace-startup".',
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)
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..addOption('pid-file',
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help: 'Specify a file to write the process id to. '
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'You can send SIGUSR1 to trigger a hot reload '
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'and SIGUSR2 to trigger a hot restart.',
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)
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..addFlag('benchmark',
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negatable: false,
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hide: !verboseHelp,
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help: 'Enable a benchmarking mode. This will run the given application, '
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'measure the startup time and the app restart time, write the '
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'results out to "refresh_benchmark.json", and exit. This flag is '
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'intended for use in generating automated flutter benchmarks.',
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)
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..addOption(FlutterOptions.kExtraFrontEndOptions, hide: true)
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..addOption(FlutterOptions.kExtraGenSnapshotOptions, hide: true)
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..addMultiOption(FlutterOptions.kEnableExperiment,
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splitCommas: true,
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hide: true,
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);
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}
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@override
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final String name = 'run';
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@override
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final String description = 'Run your Flutter app on an attached device.';
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List<Device> devices;
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@override
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Future<String> get usagePath async {
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final String command = await super.usagePath;
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if (devices == null)
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return command;
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else if (devices.length > 1)
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return '$command/all';
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else
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return '$command/${getNameForTargetPlatform(await devices[0].targetPlatform)}';
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}
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@override
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Future<Map<String, String>> get usageValues async {
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final bool isEmulator = await devices[0].isLocalEmulator;
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final String deviceType = devices.length == 1
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? getNameForTargetPlatform(await devices[0].targetPlatform)
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: 'multiple';
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return <String, String>{ 'cd3': '$isEmulator', 'cd4': deviceType };
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}
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@override
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void printNoConnectedDevices() {
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super.printNoConnectedDevices();
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if (getCurrentHostPlatform() == HostPlatform.darwin_x64 &&
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xcode.isInstalledAndMeetsVersionCheck) {
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printStatus('');
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printStatus("Run 'flutter emulators' to list and start any available device emulators.");
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printStatus('');
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printStatus('If you expected your device to be detected, please run "flutter doctor" to diagnose');
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printStatus('potential issues, or visit https://flutter.io/setup/ for troubleshooting tips.');
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}
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}
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@override
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bool get shouldRunPub {
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// If we are running with a prebuilt application, do not run pub.
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if (runningWithPrebuiltApplication)
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return false;
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return super.shouldRunPub;
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}
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bool shouldUseHotMode() {
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final bool hotArg = argResults['hot'] ?? false;
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final bool shouldUseHotMode = hotArg && !traceStartup;
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return getBuildInfo().isDebug && shouldUseHotMode;
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}
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bool get runningWithPrebuiltApplication =>
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argResults['use-application-binary'] != null;
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bool get stayResident => argResults['resident'];
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bool get awaitFirstFrameWhenTracing => argResults['await-first-frame-when-tracing'];
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@override
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Future<void> validateCommand() async {
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// When running with a prebuilt application, no command validation is
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// necessary.
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if (!runningWithPrebuiltApplication)
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await super.validateCommand();
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devices = await findAllTargetDevices();
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if (devices == null)
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throwToolExit(null);
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if (deviceManager.hasSpecifiedAllDevices && runningWithPrebuiltApplication)
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throwToolExit('Using -d all with --use-application-binary is not supported');
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}
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DebuggingOptions _createDebuggingOptions() {
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final BuildInfo buildInfo = getBuildInfo();
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if (buildInfo.isRelease) {
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return DebuggingOptions.disabled(buildInfo);
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} else {
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return DebuggingOptions.enabled(
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buildInfo,
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startPaused: argResults['start-paused'],
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useTestFonts: argResults['use-test-fonts'],
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enableSoftwareRendering: argResults['enable-software-rendering'],
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skiaDeterministicRendering: argResults['skia-deterministic-rendering'],
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traceSkia: argResults['trace-skia'],
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traceSystrace: argResults['trace-systrace'],
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observatoryPort: observatoryPort,
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);
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}
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}
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@override
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Future<FlutterCommandResult> runCommand() async {
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Cache.releaseLockEarly();
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// Enable hot mode by default if `--no-hot` was not passed and we are in
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// debug mode.
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final bool hotMode = shouldUseHotMode();
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writePidFile(argResults['pid-file']);
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if (argResults['machine']) {
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if (devices.length > 1)
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throwToolExit('--machine does not support -d all.');
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final Daemon daemon = Daemon(stdinCommandStream, stdoutCommandResponse,
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notifyingLogger: NotifyingLogger(), logToStdout: true);
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AppInstance app;
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try {
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final String applicationBinaryPath = argResults['use-application-binary'];
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app = await daemon.appDomain.startApp(
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devices.first, fs.currentDirectory.path, targetFile, route,
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_createDebuggingOptions(), hotMode,
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applicationBinary: applicationBinaryPath == null
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? null
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: fs.file(applicationBinaryPath),
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trackWidgetCreation: argResults['track-widget-creation'],
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projectRootPath: argResults['project-root'],
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packagesFilePath: globalResults['packages'],
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dillOutputPath: argResults['output-dill'],
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ipv6: ipv6,
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);
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} catch (error) {
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throwToolExit(error.toString());
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}
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final DateTime appStartedTime = systemClock.now();
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final int result = await app.runner.waitForAppToFinish();
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if (result != 0)
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throwToolExit(null, exitCode: result);
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return FlutterCommandResult(
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ExitStatus.success,
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timingLabelParts: <String>['daemon'],
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endTimeOverride: appStartedTime,
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);
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}
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for (Device device in devices) {
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if (await device.isLocalEmulator) {
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if (await device.supportsHardwareRendering) {
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final bool enableSoftwareRendering = argResults['enable-software-rendering'] == true;
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if (enableSoftwareRendering) {
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printStatus(
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'Using software rendering with device ${device.name}. You may get better performance '
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'with hardware mode by configuring hardware rendering for your device.'
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);
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} else {
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printStatus(
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'Using hardware rendering with device ${device.name}. If you get graphics artifacts, '
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'consider enabling software rendering with "--enable-software-rendering".'
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);
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}
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}
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if (!isEmulatorBuildMode(getBuildMode())) {
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throwToolExit('${toTitleCase(getFriendlyModeName(getBuildMode()))} mode is not supported for emulators.');
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}
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}
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}
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if (hotMode) {
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for (Device device in devices) {
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if (!device.supportsHotReload)
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throwToolExit('Hot reload is not supported by ${device.name}. Run with --no-hot.');
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}
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}
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if (argResults['train'] &&
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getBuildMode() != BuildMode.debug && getBuildMode() != BuildMode.dynamicProfile)
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throwToolExit('Error: --train is only allowed when running as --dynamic --profile '
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'(recommended) or --debug (may include unwanted debug symbols).');
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List<String> expFlags;
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if (argParser.options.containsKey(FlutterOptions.kEnableExperiment) &&
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argResults[FlutterOptions.kEnableExperiment].isNotEmpty) {
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expFlags = argResults[FlutterOptions.kEnableExperiment];
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}
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final List<FlutterDevice> flutterDevices = devices.map<FlutterDevice>((Device device) {
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return FlutterDevice(
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device,
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trackWidgetCreation: argResults['track-widget-creation'],
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dillOutputPath: argResults['output-dill'],
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fileSystemRoots: argResults['filesystem-root'],
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fileSystemScheme: argResults['filesystem-scheme'],
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viewFilter: argResults['isolate-filter'],
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experimentalFlags: expFlags,
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);
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}).toList();
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ResidentRunner runner;
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final String applicationBinaryPath = argResults['use-application-binary'];
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if (hotMode) {
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runner = HotRunner(
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flutterDevices,
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target: targetFile,
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debuggingOptions: _createDebuggingOptions(),
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benchmarkMode: argResults['benchmark'],
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applicationBinary: applicationBinaryPath == null
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? null
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: fs.file(applicationBinaryPath),
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projectRootPath: argResults['project-root'],
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packagesFilePath: globalResults['packages'],
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dillOutputPath: argResults['output-dill'],
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saveCompilationTrace: argResults['train'],
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stayResident: stayResident,
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ipv6: ipv6,
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);
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} else {
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runner = ColdRunner(
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flutterDevices,
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target: targetFile,
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debuggingOptions: _createDebuggingOptions(),
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traceStartup: traceStartup,
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awaitFirstFrameWhenTracing: awaitFirstFrameWhenTracing,
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applicationBinary: applicationBinaryPath == null
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? null
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: fs.file(applicationBinaryPath),
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saveCompilationTrace: argResults['train'],
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stayResident: stayResident,
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ipv6: ipv6,
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);
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}
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DateTime appStartedTime;
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// Sync completer so the completing agent attaching to the resident doesn't
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// need to know about analytics.
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//
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// Do not add more operations to the future.
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final Completer<void> appStartedTimeRecorder = Completer<void>.sync();
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// This callback can't throw.
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unawaited(appStartedTimeRecorder.future.then<void>(
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(_) { appStartedTime = systemClock.now(); }
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));
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final int result = await runner.run(
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appStartedCompleter: appStartedTimeRecorder,
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route: route,
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shouldBuild: !runningWithPrebuiltApplication && argResults['build'],
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);
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if (result != 0)
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throwToolExit(null, exitCode: result);
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return FlutterCommandResult(
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ExitStatus.success,
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timingLabelParts: <String>[
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hotMode ? 'hot' : 'cold',
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getModeName(getBuildMode()),
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devices.length == 1
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? getNameForTargetPlatform(await devices[0].targetPlatform)
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: 'multiple',
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devices.length == 1 && await devices[0].isLocalEmulator ? 'emulator' : null
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],
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endTimeOverride: appStartedTime,
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);
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}
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}
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