Index: lib/src/flutter.dart |
diff --git a/lib/src/flutter.dart b/lib/src/flutter.dart |
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+// Copyright (c) 2016, 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'; |
+ |
+/// Whether the Flutter SDK is available. |
+final bool isAvailable = Platform.environment.containsKey("FLUTTER_ROOT"); |
+ |
+/// The path to the root directory of the Flutter SDK. |
+final String rootDirectory = Platform.environment["FLUTTER_ROOT"]; |
+ |
+/// The Flutter SDK's version number, or `null` if the Flutter SDK is |
+/// unavailable. |
+final version = () { |
+ if (!isAvailable) return null; |
+ |
+ return new Version.parse( |
+ readTextFile(p.join(rootDirectory, "version")).trim()); |
+}(); |