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flutter start no longer depends on a pre-built SkyShell.apk. It builds a new one, as long as an AndroidManifest.xml exists. We rebuild the .apk every time either AndroidManifest.xml or flutter.yaml changes.
544 lines
18 KiB
Dart
544 lines
18 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 'dart:convert';
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import 'dart:io';
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import 'package:path/path.dart' as path;
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import 'package:yaml/yaml.dart';
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import 'package:xml/xml.dart' as xml;
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import '../android/device_android.dart';
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import '../application_package.dart';
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import '../artifacts.dart';
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import '../base/context.dart';
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import '../base/file_system.dart';
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import '../base/process.dart';
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import '../build_configuration.dart';
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import '../device.dart';
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import '../flx.dart' as flx;
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import '../runner/flutter_command.dart';
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import '../toolchain.dart';
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import 'start.dart';
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const String _kDefaultAndroidManifestPath = 'apk/AndroidManifest.xml';
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const String _kDefaultOutputPath = 'build/app.apk';
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const String _kDefaultResourcesPath = 'apk/res';
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const String _kFlutterManifestPath = 'flutter.yaml';
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const String _kPubspecYamlPath = 'pubspec.yaml';
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const String _kPackagesStatusPath = '.packages';
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// Alias of the key provided in the Chromium debug keystore
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const String _kDebugKeystoreKeyAlias = "chromiumdebugkey";
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// Password for the Chromium debug keystore
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const String _kDebugKeystorePassword = "chromium";
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const String _kAndroidPlatformVersion = '22';
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const String _kBuildToolsVersion = '22.0.1';
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/// Copies files into a new directory structure.
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class _AssetBuilder {
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final Directory outDir;
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Directory _assetDir;
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_AssetBuilder(this.outDir, String assetDirName) {
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_assetDir = new Directory('${outDir.path}/$assetDirName');
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_assetDir.createSync(recursive: true);
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}
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void add(File asset, String relativePath) {
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String destPath = path.join(_assetDir.path, relativePath);
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ensureDirectoryExists(destPath);
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asset.copySync(destPath);
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}
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Directory get directory => _assetDir;
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}
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/// Builds an APK package using Android SDK tools.
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class _ApkBuilder {
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final String androidSdk;
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File _androidJar;
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File _aapt;
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File _dx;
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File _zipalign;
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String _jarsigner;
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_ApkBuilder(this.androidSdk) {
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_androidJar = new File('$androidSdk/platforms/android-$_kAndroidPlatformVersion/android.jar');
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String buildTools = '$androidSdk/build-tools/$_kBuildToolsVersion';
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_aapt = new File('$buildTools/aapt');
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_dx = new File('$buildTools/dx');
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_zipalign = new File('$buildTools/zipalign');
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_jarsigner = 'jarsigner';
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}
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bool checkSdkPath() {
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return (_androidJar.existsSync() && _aapt.existsSync() && _dx.existsSync() && _zipalign.existsSync());
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}
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void compileClassesDex(File classesDex, List<File> jars) {
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List<String> packageArgs = [_dx.path,
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'--dex',
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'--force-jumbo',
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'--output', classesDex.path
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];
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packageArgs.addAll(jars.map((File f) => f.path));
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runCheckedSync(packageArgs);
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}
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void package(File outputApk, File androidManifest, Directory assets, Directory artifacts, Directory resources) {
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List<String> packageArgs = [_aapt.path,
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'package',
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'-M', androidManifest.path,
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'-A', assets.path,
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'-I', _androidJar.path,
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'-F', outputApk.path,
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];
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if (resources != null) {
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packageArgs.addAll(['-S', resources.absolute.path]);
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}
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packageArgs.add(artifacts.path);
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runCheckedSync(packageArgs);
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}
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void sign(File keystore, String keystorePassword, String keyAlias, String keyPassword, File outputApk) {
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runCheckedSync([_jarsigner,
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'-keystore', keystore.path,
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'-storepass', keystorePassword,
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'-keypass', keyPassword,
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outputApk.path,
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keyAlias,
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]);
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}
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void align(File unalignedApk, File outputApk) {
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runCheckedSync([_zipalign.path, '-f', '4', unalignedApk.path, outputApk.path]);
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}
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}
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class _ApkComponents {
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Directory androidSdk;
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File manifest;
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File icuData;
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List<File> jars;
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List<Map<String, String>> services = [];
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File libSkyShell;
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File debugKeystore;
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Directory resources;
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}
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class ApkKeystoreInfo {
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String keystore;
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String password;
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String keyAlias;
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String keyPassword;
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ApkKeystoreInfo({ this.keystore, this.password, this.keyAlias, this.keyPassword });
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}
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// TODO(mpcomplete): find a better home for this.
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dynamic _loadYamlFile(String path) {
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if (!FileSystemEntity.isFileSync(path))
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return null;
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String manifestString = new File(path).readAsStringSync();
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return loadYaml(manifestString);
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}
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class ApkCommand extends FlutterCommand {
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final String name = 'apk';
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final String description = 'Build an Android APK package.';
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ApkCommand() {
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argParser.addOption('manifest',
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abbr: 'm',
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defaultsTo: _kDefaultAndroidManifestPath,
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help: 'Android manifest XML file.');
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argParser.addOption('resources',
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abbr: 'r',
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defaultsTo: _kDefaultResourcesPath,
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help: 'Resources directory path.');
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argParser.addOption('output-file',
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abbr: 'o',
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defaultsTo: _kDefaultOutputPath,
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help: 'Output APK file.');
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argParser.addOption('target',
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abbr: 't',
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defaultsTo: '',
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help: 'Target app path or filename used to build the FLX.');
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argParser.addOption('flx',
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abbr: 'f',
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defaultsTo: '',
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help: 'Path to the FLX file. If this is not provided, an FLX will be built.');
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argParser.addOption('keystore',
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defaultsTo: '',
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help: 'Path to the keystore used to sign the app.');
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argParser.addOption('keystore-password',
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defaultsTo: '',
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help: 'Password used to access the keystore.');
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argParser.addOption('keystore-key-alias',
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defaultsTo: '',
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help: 'Alias of the entry within the keystore.');
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argParser.addOption('keystore-key-password',
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defaultsTo: '',
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help: 'Password for the entry within the keystore.');
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}
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@override
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Future<int> runInProject() async {
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await downloadToolchain();
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return await buildAndroid(
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toolchain: toolchain,
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configs: buildConfigurations,
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enginePath: runner.enginePath,
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force: true,
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manifest: argResults['manifest'],
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resources: argResults['resources'],
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outputFile: argResults['output-file'],
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target: argResults['target'],
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flxPath: argResults['flx'],
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keystore: argResults['keystore'].isEmpty ? null : new ApkKeystoreInfo(
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keystore: argResults['keystore'],
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password: argResults['keystore-password'],
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keyAlias: argResults['keystore-key-alias'],
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keyPassword: argResults['keystore-key-password']
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)
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);
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}
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}
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Future _findServices(_ApkComponents components) async {
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if (!ArtifactStore.isPackageRootValid)
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return;
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dynamic manifest = _loadYamlFile(_kFlutterManifestPath);
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if (manifest['services'] == null)
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return;
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for (String service in manifest['services']) {
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String serviceRoot = '${ArtifactStore.packageRoot}/$service/apk';
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dynamic serviceConfig = _loadYamlFile('$serviceRoot/config.yaml');
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if (serviceConfig == null || serviceConfig['jars'] == null)
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continue;
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components.services.addAll(serviceConfig['services']);
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for (String jar in serviceConfig['jars']) {
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if (jar.startsWith("android-sdk:")) {
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// Jar is something shipped in the standard android SDK.
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jar = jar.replaceAll('android-sdk:', '${components.androidSdk.path}/');
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components.jars.add(new File(jar));
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} else if (jar.startsWith("http")) {
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// Jar is a URL to download.
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String cachePath = await ArtifactStore.getThirdPartyFile(jar, service);
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components.jars.add(new File(cachePath));
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} else {
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// Assume jar is a path relative to the service's root dir.
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components.jars.add(new File(path.join(serviceRoot, jar)));
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}
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}
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}
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}
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Future<_ApkComponents> _findApkComponents(
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BuildConfiguration config, String enginePath, String manifest, String resources
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) async {
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String androidSdkPath;
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List<String> artifactPaths;
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if (enginePath != null) {
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androidSdkPath = '$enginePath/third_party/android_tools/sdk';
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artifactPaths = [
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'$enginePath/third_party/icu/android/icudtl.dat',
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'${config.buildDir}/gen/sky/shell/shell/classes.dex.jar',
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'${config.buildDir}/gen/sky/shell/shell/shell/libs/armeabi-v7a/libsky_shell.so',
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'$enginePath/build/android/ant/chromium-debug.keystore',
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];
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} else {
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androidSdkPath = AndroidDevice.getAndroidSdkPath();
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if (androidSdkPath == null)
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return null;
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List<ArtifactType> artifactTypes = <ArtifactType>[
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ArtifactType.androidIcuData,
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ArtifactType.androidClassesJar,
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ArtifactType.androidLibSkyShell,
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ArtifactType.androidKeystore,
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];
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Iterable<Future<String>> pathFutures = artifactTypes.map(
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(ArtifactType type) => ArtifactStore.getPath(ArtifactStore.getArtifact(
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type: type, targetPlatform: TargetPlatform.android)));
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artifactPaths = await Future.wait(pathFutures);
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}
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_ApkComponents components = new _ApkComponents();
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components.androidSdk = new Directory(androidSdkPath);
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components.manifest = new File(manifest);
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components.icuData = new File(artifactPaths[0]);
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components.jars = [new File(artifactPaths[1])];
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components.libSkyShell = new File(artifactPaths[2]);
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components.debugKeystore = new File(artifactPaths[3]);
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components.resources = new Directory(resources);
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await _findServices(components);
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if (!components.resources.existsSync()) {
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// TODO(eseidel): This level should be higher when path is manually set.
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printStatus('Can not locate Resources: ${components.resources}, ignoring.');
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components.resources = null;
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}
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if (!components.androidSdk.existsSync()) {
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printError('Can not locate Android SDK: $androidSdkPath');
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return null;
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}
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if (!(new _ApkBuilder(components.androidSdk.path).checkSdkPath())) {
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printError('Can not locate expected Android SDK tools at $androidSdkPath');
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printError('You must install version $_kAndroidPlatformVersion of the SDK platform');
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printError('and version $_kBuildToolsVersion of the build tools.');
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return null;
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}
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for (File f in [components.manifest, components.icuData,
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components.libSkyShell, components.debugKeystore]
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..addAll(components.jars)) {
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if (!f.existsSync()) {
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printError('Can not locate file: ${f.path}');
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return null;
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}
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}
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return components;
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}
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// Outputs a services.json file for the flutter engine to read. Format:
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// {
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// services: [
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// { name: string, class: string },
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// ...
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// ]
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// }
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void _generateServicesConfig(File servicesConfig, List<Map<String, String>> servicesIn) {
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List<Map<String, String>> services =
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servicesIn.map((Map<String, String> service) => {
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'name': service['name'],
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'class': service['registration-class']
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}).toList();
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Map<String, dynamic> json = { 'services': services };
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servicesConfig.writeAsStringSync(JSON.encode(json), mode: FileMode.WRITE, flush: true);
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}
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int _buildApk(
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_ApkComponents components, String flxPath, ApkKeystoreInfo keystore, String outputFile
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) {
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Directory tempDir = Directory.systemTemp.createTempSync('flutter_tools');
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try {
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_ApkBuilder builder = new _ApkBuilder(components.androidSdk.path);
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File classesDex = new File('${tempDir.path}/classes.dex');
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builder.compileClassesDex(classesDex, components.jars);
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File servicesConfig = new File('${tempDir.path}/services.json');
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_generateServicesConfig(servicesConfig, components.services);
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_AssetBuilder assetBuilder = new _AssetBuilder(tempDir, 'assets');
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assetBuilder.add(components.icuData, 'icudtl.dat');
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assetBuilder.add(new File(flxPath), 'app.flx');
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assetBuilder.add(servicesConfig, 'services.json');
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_AssetBuilder artifactBuilder = new _AssetBuilder(tempDir, 'artifacts');
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artifactBuilder.add(classesDex, 'classes.dex');
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artifactBuilder.add(components.libSkyShell, 'lib/armeabi-v7a/libsky_shell.so');
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File unalignedApk = new File('${tempDir.path}/app.apk.unaligned');
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builder.package(unalignedApk, components.manifest, assetBuilder.directory,
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artifactBuilder.directory, components.resources);
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int signResult = _signApk(builder, components, unalignedApk, keystore);
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if (signResult != 0)
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return signResult;
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File finalApk = new File(outputFile);
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ensureDirectoryExists(finalApk.path);
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builder.align(unalignedApk, finalApk);
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printStatus('APK generated: ${finalApk.path}');
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return 0;
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} finally {
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tempDir.deleteSync(recursive: true);
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}
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}
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int _signApk(
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_ApkBuilder builder, _ApkComponents components, File apk, ApkKeystoreInfo keystoreInfo
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) {
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File keystore;
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String keystorePassword;
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String keyAlias;
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String keyPassword;
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if (keystoreInfo == null) {
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printError('Signing the APK using the debug keystore.');
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keystore = components.debugKeystore;
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keystorePassword = _kDebugKeystorePassword;
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keyAlias = _kDebugKeystoreKeyAlias;
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keyPassword = _kDebugKeystorePassword;
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} else {
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keystore = new File(keystoreInfo.keystore);
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keystorePassword = keystoreInfo.password;
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keyAlias = keystoreInfo.keyAlias;
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if (keystorePassword.isEmpty || keyAlias.isEmpty) {
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printError('Must provide a keystore password and a key alias.');
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return 1;
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}
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keyPassword = keystoreInfo.keyPassword;
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if (keyPassword.isEmpty)
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keyPassword = keystorePassword;
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}
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builder.sign(keystore, keystorePassword, keyAlias, keyPassword, apk);
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return 0;
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}
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// Creates a new ApplicationPackage from the Android manifest.
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AndroidApk _getApplicationPackage(String apkPath, String manifest) {
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if (!FileSystemEntity.isFileSync(manifest))
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return null;
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String manifestString = new File(manifest).readAsStringSync();
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xml.XmlDocument document = xml.parse(manifestString);
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Iterable<xml.XmlElement> manifests = document.findElements('manifest');
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if (manifests.isEmpty)
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return null;
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String id = manifests.toList()[0].getAttribute('package');
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String launchActivity;
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for (xml.XmlElement category in document.findAllElements('category')) {
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if (category.getAttribute('android:name') == 'android.intent.category.LAUNCHER') {
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xml.XmlElement activity = category.parent.parent as xml.XmlElement;
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String activityName = activity.getAttribute('android:name');
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launchActivity = "$id/$activityName";
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break;
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}
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}
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if (id == null || launchActivity == null)
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return null;
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return new AndroidApk(localPath: apkPath, id: id, launchActivity: launchActivity);
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}
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// Returns true if the apk is out of date and needs to be rebuilt.
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bool _needsRebuild(String apkPath, String manifest) {
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FileStat apkStat = FileStat.statSync(apkPath);
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// Note: This list of dependencies is imperfect, but will do for now. We
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// purposely don't include the .dart files, because we can load those
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// over the network without needing to rebuild (at least on Android).
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List<FileStat> dependenciesStat = [
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manifest,
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_kFlutterManifestPath,
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_kPackagesStatusPath
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].map((String path) => FileStat.statSync(path));
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if (apkStat.type == FileSystemEntityType.NOT_FOUND)
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return true;
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for (FileStat dep in dependenciesStat) {
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if (dep.modified.isAfter(apkStat.modified))
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return true;
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}
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return false;
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}
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Future<int> buildAndroid({
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Toolchain toolchain,
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List<BuildConfiguration> configs,
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String enginePath,
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bool force: false,
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String manifest: _kDefaultAndroidManifestPath,
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String resources: _kDefaultResourcesPath,
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String outputFile: _kDefaultOutputPath,
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String target: '',
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String flxPath: '',
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ApkKeystoreInfo keystore
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}) async {
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if (!_needsRebuild(outputFile, manifest)) {
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printTrace('APK up to date. Skipping build step.');
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return 0;
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}
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BuildConfiguration config = configs.firstWhere(
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(BuildConfiguration bc) => bc.targetPlatform == TargetPlatform.android
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);
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_ApkComponents components = await _findApkComponents(config, enginePath, manifest, resources);
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if (components == null) {
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printError('Failure building APK. Unable to find components.');
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return 1;
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}
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printStatus('Building APK...');
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if (!flxPath.isEmpty) {
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if (!FileSystemEntity.isFileSync(flxPath)) {
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printError('FLX does not exist: $flxPath');
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printError('(Omit the --flx option to build the FLX automatically)');
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return 1;
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}
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return _buildApk(components, flxPath, keystore, outputFile);
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} else {
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// Find the path to the main Dart file.
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String mainPath = findMainDartFile(target);
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// Build the FLX.
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flx.DirectoryResult buildResult = await flx.buildInTempDir(toolchain, mainPath: mainPath);
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try {
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return _buildApk(components, buildResult.localBundlePath, keystore, outputFile);
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} finally {
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buildResult.dispose();
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}
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}
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}
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|
|
|
Future<ApplicationPackageStore> buildAll(
|
|
DeviceStore devices,
|
|
ApplicationPackageStore applicationPackages,
|
|
Toolchain toolchain,
|
|
List<BuildConfiguration> configs, {
|
|
String enginePath,
|
|
String target: ''
|
|
}) async {
|
|
for (Device device in devices.all) {
|
|
ApplicationPackage package = applicationPackages.getPackageForPlatform(device.platform);
|
|
if (package == null || !device.isConnected())
|
|
continue;
|
|
|
|
// TODO(mpcomplete): Temporary hack. We only support the apk builder atm.
|
|
if (package == applicationPackages.android) {
|
|
if (!FileSystemEntity.isFileSync(_kDefaultAndroidManifestPath)) {
|
|
printStatus('Using pre-built SkyShell.apk');
|
|
continue;
|
|
}
|
|
|
|
await buildAndroid(
|
|
toolchain: toolchain,
|
|
configs: configs,
|
|
enginePath: enginePath,
|
|
force: false,
|
|
target: target
|
|
);
|
|
// Replace our pre-built AndroidApk with this custom-built one.
|
|
applicationPackages = new ApplicationPackageStore(
|
|
android: _getApplicationPackage(_kDefaultOutputPath, _kDefaultAndroidManifestPath),
|
|
iOS: applicationPackages.iOS,
|
|
iOSSimulator: applicationPackages.iOSSimulator
|
|
);
|
|
}
|
|
}
|
|
return applicationPackages;
|
|
}
|