blob: 2763f854bdd27bc6773511be8bbf6d0d8e7c866b [file] [log] [blame]
// 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 {
String get name => 'Dart';
bool get isAvailable => true;
String get installMessage => null;
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;
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;
String packagePath(String name) => null;