| // Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'dart:io'; |
| |
| import 'package:path/path.dart' as p; |
| import 'package:pub_semver/pub_semver.dart'; |
| |
| import '../io.dart'; |
| import '../sdk.dart'; |
| |
| /// The Dart SDK. |
| /// |
| /// Unlike other SDKs, this is always available. |
| class DartSdk extends Sdk { |
| @override |
| String get name => 'Dart'; |
| @override |
| bool get isAvailable => true; |
| @override |
| String? get installMessage => null; |
| @override |
| Version get firstPubVersion => Version.none; |
| |
| static final String _rootDirectory = () { |
| if (runningFromDartRepo) return p.join(dartRepoRoot, 'sdk'); |
| |
| // The Dart executable is in "/path/to/sdk/bin/dart", so two levels up is |
| // "/path/to/sdk". |
| var aboveExecutable = p.dirname(p.dirname(Platform.resolvedExecutable)); |
| assert(fileExists(p.join(aboveExecutable, 'version'))); |
| return aboveExecutable; |
| }(); |
| |
| @override |
| final Version version = () { |
| // Some of the pub integration tests require an SDK version number, but the |
| // tests on the bots are not run from a built SDK so this lets us avoid |
| // parsing the missing version file. |
| var sdkVersion = Platform.environment['_PUB_TEST_SDK_VERSION'] ?? |
| Platform.version.split(' ').first; |
| |
| return Version.parse(sdkVersion); |
| }(); |
| |
| /// The path to the root directory of the SDK. |
| /// |
| /// Note that if pub is running from source within the Dart repo (for example |
| /// when building Observatory), this will be the repo's "sdk/" directory, |
| /// which doesn't look exactly like the built SDK. |
| String get rootDirectory => _rootDirectory; |
| |
| @override |
| String? packagePath(String name) => null; |
| } |