// 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. import '../base/analyze_size.dart'; import '../base/common.dart'; import '../base/logger.dart'; import '../base/os.dart'; import '../build_info.dart'; import '../cache.dart'; import '../features.dart'; import '../globals.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 super.logger, required OperatingSystemUtils operatingSystemUtils, bool verboseHelp = false, }) : _operatingSystemUtils = operatingSystemUtils, super(verboseHelp: verboseHelp) { 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 = _operatingSystemUtils.hostPlatform.platformName != targetPlatform.simpleName; 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); final Logger logger = globals.logger; await buildLinux( flutterProject.linux, buildInfo, target: targetFile, sizeAnalyzer: SizeAnalyzer( fileSystem: globals.fs, logger: logger, flutterUsage: globals.flutterUsage, ), needCrossBuild: needCrossBuild, targetPlatform: targetPlatform, targetSysroot: stringArg('target-sysroot')!, logger: logger, ); return FlutterCommandResult.success(); } }