Merge pull request #1641 from tvolkert/master

Create flutter_tools.dart to represent public tools API

packages/flutter_tools/lib/flutter_tools.dart

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+library flutter_tools;
+
+import 'dart:async';
+
+import 'package:archive/archive.dart';
+
+import 'src/flx.dart' as flx;
+
+/// Assembles a Flutter .flx file from a pre-existing manifest descriptor
+/// and a pre-compiled snapshot.
+Future<int> assembleFlx({
+  Map manifestDescriptor: const {},
+  ArchiveFile snapshotFile: null,
+  String assetBasePath: flx.defaultAssetBasePath,
+  String materialAssetBasePath: flx.defaultMaterialAssetBasePath,
+  String outputPath: flx.defaultFlxOutputPath,
+  String privateKeyPath: flx.defaultPrivateKeyPath
+}) async {
+  return flx.assemble(
+      manifestDescriptor: manifestDescriptor,
+      snapshotFile: snapshotFile,
+      assetBasePath: assetBasePath,
+      materialAssetBasePath: materialAssetBasePath,
+      outputPath: outputPath,
+      privateKeyPath: privateKeyPath
+  );
+}

packages/flutter_tools/lib/src/flx.dart

@@ -243,11 +243,6 @@ Future<int> build(
   );
 }
 
-/// Assembles a Flutter .flx file from a pre-existing manifest descriptor
-/// and a pre-compiled snapshot.
-///
-/// This may be called by external build toolchains, so practice caution
-/// when changing this method signature (alert flutter-dev).
 Future<int> assemble({
   Map manifestDescriptor: const {},
   ArchiveFile snapshotFile: null,