| // Copyright 2014 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // @dart = 2.8 |
| |
| import 'package:meta/meta.dart'; |
| |
| import '../base/analyze_size.dart'; |
| import '../base/common.dart'; |
| import '../base/os.dart'; |
| import '../build_info.dart'; |
| import '../cache.dart'; |
| import '../features.dart'; |
| import '../globals_null_migrated.dart' as globals; |
| import '../linux/build_linux.dart'; |
| import '../project.dart'; |
| import '../runner/flutter_command.dart' show FlutterCommandResult; |
| import 'build.dart'; |
| |
| /// A command to build a linux desktop target through a build shell script. |
| class BuildLinuxCommand extends BuildSubCommand { |
| BuildLinuxCommand({ |
| @required OperatingSystemUtils operatingSystemUtils, |
| bool verboseHelp = false, |
| }) : _operatingSystemUtils = operatingSystemUtils { |
| addCommonDesktopBuildOptions(verboseHelp: verboseHelp); |
| final String defaultTargetPlatform = |
| (_operatingSystemUtils.hostPlatform == HostPlatform.linux_arm64) ? |
| 'linux-arm64' : 'linux-x64'; |
| argParser.addOption('target-platform', |
| defaultsTo: defaultTargetPlatform, |
| allowed: <String>['linux-arm64', 'linux-x64'], |
| help: 'The target platform for which the app is compiled.', |
| ); |
| argParser.addOption('target-sysroot', |
| defaultsTo: '/', |
| help: 'The root filesystem path of target platform for which ' |
| 'the app is compiled. This option is valid only ' |
| 'if the current host and target architectures are different.', |
| ); |
| } |
| |
| final OperatingSystemUtils _operatingSystemUtils; |
| |
| @override |
| final String name = 'linux'; |
| |
| @override |
| bool get hidden => !featureFlags.isLinuxEnabled || !globals.platform.isLinux; |
| |
| @override |
| Future<Set<DevelopmentArtifact>> get requiredArtifacts async => <DevelopmentArtifact>{ |
| DevelopmentArtifact.linux, |
| }; |
| |
| @override |
| String get description => 'Build a Linux desktop application.'; |
| |
| @override |
| Future<FlutterCommandResult> runCommand() async { |
| final BuildInfo buildInfo = await getBuildInfo(); |
| final FlutterProject flutterProject = FlutterProject.current(); |
| final TargetPlatform targetPlatform = |
| getTargetPlatformForName(stringArg('target-platform')); |
| final bool needCrossBuild = |
| getNameForHostPlatformArch(_operatingSystemUtils.hostPlatform) |
| != getNameForTargetPlatformArch(targetPlatform); |
| |
| if (!featureFlags.isLinuxEnabled) { |
| throwToolExit('"build linux" is not currently supported. To enable, run "flutter config --enable-linux-desktop".'); |
| } |
| if (!globals.platform.isLinux) { |
| throwToolExit('"build linux" only supported on Linux hosts.'); |
| } |
| // Cross-building for x64 targets on arm64 hosts is not supported. |
| if (_operatingSystemUtils.hostPlatform != HostPlatform.linux_x64 && |
| targetPlatform != TargetPlatform.linux_arm64) { |
| throwToolExit('"cross-building" only supported on Linux x64 hosts.'); |
| } |
| // TODO(fujino): https://github.com/flutter/flutter/issues/74929 |
| if (_operatingSystemUtils.hostPlatform == HostPlatform.linux_x64 && |
| targetPlatform == TargetPlatform.linux_arm64) { |
| throwToolExit( |
| 'Cross-build from Linux x64 host to Linux arm64 target is not currently supported.'); |
| } |
| displayNullSafetyMode(buildInfo); |
| await buildLinux( |
| flutterProject.linux, |
| buildInfo, |
| target: targetFile, |
| sizeAnalyzer: SizeAnalyzer( |
| fileSystem: globals.fs, |
| logger: globals.logger, |
| flutterUsage: globals.flutterUsage, |
| ), |
| needCrossBuild: needCrossBuild, |
| targetPlatform: targetPlatform, |
| targetSysroot: stringArg('target-sysroot'), |
| ); |
| return FlutterCommandResult.success(); |
| } |
| } |