| // 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/file_system.dart'; |
| import '../../base/project_migrator.dart'; |
| import '../../project.dart'; |
| |
| const String _eagerCleanTaskDeclaration = ''' |
| task clean(type: Delete) { |
| delete rootProject.buildDir |
| } |
| '''; |
| |
| const String _lazyCleanTaskDeclaration = ''' |
| tasks.register("clean", Delete) { |
| delete rootProject.buildDir |
| } |
| '''; |
| |
| /// Migrate the Gradle "clean" task to use modern, lazy declaration style. |
| class TopLevelGradleBuildFileMigration extends ProjectMigrator { |
| TopLevelGradleBuildFileMigration( |
| AndroidProject project, |
| super.logger, |
| ) : _topLevelGradleBuildFile = project.hostAppGradleRoot.childFile('build.gradle'); |
| |
| final File _topLevelGradleBuildFile; |
| |
| @override |
| Future<void> migrate() async { |
| if (!_topLevelGradleBuildFile.existsSync()) { |
| logger.printTrace('Top-level Gradle build file not found, skipping migration of task "clean".'); |
| return; |
| } |
| |
| processFileLines(_topLevelGradleBuildFile); |
| } |
| |
| @override |
| String migrateFileContents(String fileContents) { |
| final String newContents = fileContents.replaceAll( |
| _eagerCleanTaskDeclaration, |
| _lazyCleanTaskDeclaration, |
| ); |
| |
| if (newContents != fileContents) { |
| logger.printTrace('Migrating "clean" Gradle task to lazy declaration style.'); |
| } |
| |
| return newContents; |
| } |
| } |