| // 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 '../artifacts.dart'; |
| import '../base/common.dart'; |
| import '../base/file_system.dart'; |
| import '../base/logger.dart'; |
| import '../build_info.dart'; |
| import '../build_system/build_system.dart'; |
| import '../build_system/targets/common.dart'; |
| import '../build_system/targets/icon_tree_shaker.dart'; |
| import '../build_system/targets/web.dart'; |
| import '../cache.dart'; |
| import '../globals.dart' as globals; |
| import '../platform_plugins.dart'; |
| import '../plugins.dart'; |
| import '../project.dart'; |
| |
| Future<void> buildWeb( |
| FlutterProject flutterProject, |
| String target, |
| BuildInfo buildInfo, |
| bool csp, |
| String serviceWorkerStrategy, |
| bool sourceMaps, |
| bool nativeNullAssertions, |
| ) async { |
| if (!flutterProject.web.existsSync()) { |
| throwToolExit('Missing index.html.'); |
| } |
| final bool hasWebPlugins = (await findPlugins(flutterProject)) |
| .any((Plugin p) => p.platforms.containsKey(WebPlugin.kConfigKey)); |
| final Directory outputDirectory = globals.fs.directory(getWebBuildDirectory()); |
| outputDirectory.createSync(recursive: true); |
| |
| await injectPlugins(flutterProject, webPlatform: true); |
| final Status status = globals.logger.startProgress('Compiling $target for the Web...'); |
| final Stopwatch sw = Stopwatch()..start(); |
| try { |
| final BuildResult result = await globals.buildSystem.build(const WebServiceWorker(), Environment( |
| projectDir: globals.fs.currentDirectory, |
| outputDir: outputDirectory, |
| buildDir: flutterProject.directory |
| .childDirectory('.dart_tool') |
| .childDirectory('flutter_build'), |
| defines: <String, String>{ |
| kBuildMode: getNameForBuildMode(buildInfo.mode), |
| kTargetFile: target, |
| kHasWebPlugins: hasWebPlugins.toString(), |
| kDartDefines: encodeDartDefines(buildInfo.dartDefines), |
| kCspMode: csp.toString(), |
| kIconTreeShakerFlag: buildInfo.treeShakeIcons.toString(), |
| kSourceMapsEnabled: sourceMaps.toString(), |
| kNativeNullAssertions: nativeNullAssertions.toString(), |
| if (serviceWorkerStrategy != null) |
| kServiceWorkerStrategy: serviceWorkerStrategy, |
| if (buildInfo.extraFrontEndOptions?.isNotEmpty ?? false) |
| kExtraFrontEndOptions: buildInfo.extraFrontEndOptions.join(','), |
| }, |
| artifacts: globals.artifacts, |
| fileSystem: globals.fs, |
| logger: globals.logger, |
| processManager: globals.processManager, |
| cacheDir: globals.cache.getRoot(), |
| engineVersion: globals.artifacts.isLocalEngine |
| ? null |
| : globals.flutterVersion.engineRevision, |
| flutterRootDir: globals.fs.directory(Cache.flutterRoot), |
| )); |
| if (!result.success) { |
| for (final ExceptionMeasurement measurement in result.exceptions.values) { |
| globals.printError('Target ${measurement.target} failed: ${measurement.exception}', |
| stackTrace: measurement.fatal |
| ? measurement.stackTrace |
| : null, |
| ); |
| } |
| throwToolExit('Failed to compile application for the Web.'); |
| } |
| } on Exception catch (err) { |
| throwToolExit(err.toString()); |
| } finally { |
| status.stop(); |
| } |
| globals.flutterUsage.sendTiming('build', 'dart2js', Duration(milliseconds: sw.elapsedMilliseconds)); |
| } |
| |
| /// Web rendering backend mode. |
| enum WebRendererMode { |
| /// Auto detects which rendering backend to use. |
| autoDetect, |
| /// Always uses canvaskit. |
| canvaskit, |
| /// Always uses html. |
| html, |
| } |
| |
| /// The correct precompiled artifact to use for each build and render mode. |
| const Map<WebRendererMode, Map<NullSafetyMode, Artifact>> kDartSdkJsArtifactMap = <WebRendererMode, Map<NullSafetyMode, Artifact>>{ |
| WebRendererMode.autoDetect: <NullSafetyMode, Artifact> { |
| NullSafetyMode.sound: Artifact.webPrecompiledCanvaskitAndHtmlSoundSdk, |
| NullSafetyMode.unsound: Artifact.webPrecompiledCanvaskitAndHtmlSdk, |
| }, |
| WebRendererMode.canvaskit: <NullSafetyMode, Artifact> { |
| NullSafetyMode.sound: Artifact.webPrecompiledCanvaskitSoundSdk, |
| NullSafetyMode.unsound: Artifact.webPrecompiledCanvaskitSdk, |
| }, |
| WebRendererMode.html: <NullSafetyMode, Artifact> { |
| NullSafetyMode.sound: Artifact.webPrecompiledSoundSdk, |
| NullSafetyMode.unsound: Artifact.webPrecompiledSdk, |
| }, |
| }; |
| |
| /// The correct source map artifact to use for each build and render mode. |
| const Map<WebRendererMode, Map<NullSafetyMode, Artifact>> kDartSdkJsMapArtifactMap = <WebRendererMode, Map<NullSafetyMode, Artifact>>{ |
| WebRendererMode.autoDetect: <NullSafetyMode, Artifact> { |
| NullSafetyMode.sound: Artifact.webPrecompiledCanvaskitAndHtmlSoundSdkSourcemaps, |
| NullSafetyMode.unsound: Artifact.webPrecompiledCanvaskitAndHtmlSdkSourcemaps, |
| }, |
| WebRendererMode.canvaskit: <NullSafetyMode, Artifact> { |
| NullSafetyMode.sound: Artifact.webPrecompiledCanvaskitSoundSdkSourcemaps, |
| NullSafetyMode.unsound: Artifact.webPrecompiledCanvaskitSdkSourcemaps, |
| }, |
| WebRendererMode.html: <NullSafetyMode, Artifact> { |
| NullSafetyMode.sound: Artifact.webPrecompiledSoundSdkSourcemaps, |
| NullSafetyMode.unsound: Artifact.webPrecompiledSdkSourcemaps, |
| }, |
| }; |