Script for merging javadoc into the dartdoc output (#7935)

dev/bots/docs.sh

@@ -8,6 +8,7 @@ pub global activate dartdoc 0.9.11
 # a custom index.html, placing everything into dev/docs/doc
 (cd dev/tools; pub get)
 FLUTTER_ROOT=$PWD dart dev/tools/dartdoc.dart
+FLUTTER_ROOT=$PWD dart dev/tools/javadoc.dart
 
 # Ensure google webmaster tools can verify our site.
 cp dev/docs/google2ed1af765c529f57.html dev/docs/doc

dev/tools/.gitignore

 .packages
+.pub/
 pubspec.lock
 packages

dev/tools/javadoc.dart

+// Copyright 2017 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.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:archive/archive.dart';
+import 'package:http/http.dart' as http;
+
+const String kDocRoot = 'dev/docs/doc';
+
+/// This script downloads an archive of Javadoc for the engine from the
+/// artifact store and extracts it to the location used for Dartdoc.
+Future<Null> main(List<String> args) async {
+  String engineVersion = new File('bin/internal/engine.version').readAsStringSync().trim();
+
+  String url = 'https://storage.googleapis.com/flutter_infra/flutter/$engineVersion/android-javadoc.zip';
+  http.Response response = await http.get(url);
+
+  Archive archive = new ZipDecoder().decodeBytes(response.bodyBytes);
+
+  Directory output = new Directory('$kDocRoot/javadoc');
+  print('Extracing javadoc to ${output.path}');
+  output.createSync(recursive: true);
+
+  for (ArchiveFile af in archive) {
+    if (af.isFile) {
+      File file = new File('${output.path}/${af.name}');
+      file.createSync(recursive: true);
+      file.writeAsBytesSync(af.content);
+    }
+  }
+
+  File testFile = new File('${output.path}/io/flutter/view/FlutterView.html');
+  if (!testFile.existsSync()) {
+    print('Expected file ${testFile.path} not found');
+    exit(1);
+  }
+}

dev/tools/pubspec.yaml

@@ -2,5 +2,7 @@ name: dev_tools
 description: Various repository development tools for flutter.
 
 dependencies:
+  archive: ^1.0.20
   args: ^0.13.4
+  http: ^0.11.3
   path: ^1.4.0