From b85168787ec8b091250ccdb81cfee9dd65250167 Mon Sep 17 00:00:00 2001
From: Hixie <github.com@spam.hixie.ch>
Date: Wed, 28 Oct 2015 13:51:30 -0700
Subject: [PATCH] rev-flutter tool

A tool to update all the pubspec.yaml versions when we're revving flutter.
---
 .../flutter/sky/packages/updater/pubspec.yaml |   1 -
 .../sky/packages/workbench/pubspec.yaml       |   2 +-
 .../tools/pubspec_maintenance/pubspec.yaml    |   5 +
 .../pubspec_maintenance/rev_flutter.dart      | 110 ++++++++++++++++++
 4 files changed, 116 insertions(+), 2 deletions(-)
 create mode 100644 engine/src/flutter/sky/tools/pubspec_maintenance/pubspec.yaml
 create mode 100755 engine/src/flutter/sky/tools/pubspec_maintenance/rev_flutter.dart

diff --git a/engine/src/flutter/sky/packages/updater/pubspec.yaml b/engine/src/flutter/sky/packages/updater/pubspec.yaml
index 0608368dddc..1048fb8f7ee 100644
--- a/engine/src/flutter/sky/packages/updater/pubspec.yaml
+++ b/engine/src/flutter/sky/packages/updater/pubspec.yaml
@@ -1,5 +1,4 @@
 name: updater
-version: 0.0.1
 author: Flutter Authors <flutter-dev@googlegroups.com>
 description: The autoupdater for flutter
 homepage: http://flutter.io
diff --git a/engine/src/flutter/sky/packages/workbench/pubspec.yaml b/engine/src/flutter/sky/packages/workbench/pubspec.yaml
index 759be72f636..1a5795f2b98 100644
--- a/engine/src/flutter/sky/packages/workbench/pubspec.yaml
+++ b/engine/src/flutter/sky/packages/workbench/pubspec.yaml
@@ -5,7 +5,7 @@ description: A workspace to host pub packages
 homepage: https://github.com/flutter/engine/tree/master/sky/packages/workbench
 dependencies:
   flutter: ">=0.0.3 <0.1.0"
-  sky_tools: ">=0.0.26"
+  sky_tools: any
   cipher: any
   asn1lib: any
   flutter_rendering_examples: any
diff --git a/engine/src/flutter/sky/tools/pubspec_maintenance/pubspec.yaml b/engine/src/flutter/sky/tools/pubspec_maintenance/pubspec.yaml
new file mode 100644
index 00000000000..26363d091ed
--- /dev/null
+++ b/engine/src/flutter/sky/tools/pubspec_maintenance/pubspec.yaml
@@ -0,0 +1,5 @@
+name: flutter-pubspec-maintenance
+dependencies:
+  den_api: ^0.1.0
+  path: ^1.3.6
+  pub_semver: ^1.2.2
diff --git a/engine/src/flutter/sky/tools/pubspec_maintenance/rev_flutter.dart b/engine/src/flutter/sky/tools/pubspec_maintenance/rev_flutter.dart
new file mode 100755
index 00000000000..757e928c1f3
--- /dev/null
+++ b/engine/src/flutter/sky/tools/pubspec_maintenance/rev_flutter.dart
@@ -0,0 +1,110 @@
+import 'dart:async';
+import 'dart:io';
+
+import 'package:den_api/den_api.dart';
+import 'package:path/path.dart' as path;
+import 'package:pub_semver/pub_semver.dart';
+
+// set this to true when we decide to ship 0.1.0
+const bool haveWeEverReleasedAPointRelease = false;
+
+class FlutterPubspec {
+  static Future<FlutterPubspec> load(String path) async {
+    return new FlutterPubspec.fromPubspec(await Pubspec.load(path));
+  }
+
+  FlutterPubspec.fromPubspec(this._data) {
+    _openPubspecs.add(this);
+  }
+
+  final Pubspec _data;
+
+  String get name => _data.name;
+  Version get version => _data.version;
+
+  PackageDep get asDependency {
+    return new PackageDep(name, 'hosted', version, '');
+  }
+
+  void bumpVersion({ bool breakingChange }) {
+    _data.bump(haveWeEverReleasedAPointRelease && breakingChange ? ReleaseType.minor : ReleaseType.patch);
+    print('$name is now at $version');
+  }
+
+  void setDependency(FlutterPubspec dependency) {
+    _data.addDependency(dependency.asDependency);
+  }
+
+  void setDependencyIfNecessary(FlutterPubspec dependency) {
+    if (_data.dependencies.containsKey(dependency.name))
+      _data.addDependency(dependency.asDependency);
+  }
+
+  void _save() {
+    _data.save();
+  }
+
+  static List<FlutterPubspec> _openPubspecs = <FlutterPubspec>[];
+  static void saveAll() {
+    for (FlutterPubspec file in _openPubspecs)
+      file._save();
+  }
+}
+
+main() async {
+  bool breakingChange = true;
+
+
+  // The published packages
+
+  FlutterPubspec flutterEngine = await FlutterPubspec.load('sky/packages/sky_engine')
+  ..bumpVersion(breakingChange: breakingChange);
+
+  FlutterPubspec flutterServices = await FlutterPubspec.load('sky/packages/sky_services')
+  ..bumpVersion(breakingChange: breakingChange);
+
+  FlutterPubspec flutterFlx = await FlutterPubspec.load('sky/packages/flx')
+  ..bumpVersion(breakingChange: breakingChange)
+  ..setDependency(flutterServices);
+
+  FlutterPubspec flutter = await FlutterPubspec.load('sky/packages/sky')
+  ..bumpVersion(breakingChange: breakingChange)
+  ..setDependency(flutterEngine)
+  ..setDependency(flutterServices);
+
+  FlutterPubspec flutterSprites = await FlutterPubspec.load('skysprites')
+  ..bumpVersion(breakingChange: breakingChange)
+  ..setDependency(flutter);
+
+
+  // The internal packages
+
+  await FlutterPubspec.load('sky/packages/updater')
+  ..setDependency(flutter)
+  ..setDependency(flutterSprites);
+
+  await FlutterPubspec.load('sky/unit')
+  ..setDependency(flutter);
+
+  await FlutterPubspec.load('sky/packages/workbench')
+  ..setDependency(flutterServices)
+  ..setDependency(flutterFlx)
+  ..setDependency(flutter)
+  ..setDependency(flutterSprites);
+
+  Directory examples = new Directory('examples');
+  await for (FileSystemEntity entity in examples.list(recursive: true, followLinks: false)) {
+    if (entity is File && path.basename(entity.path) == Pubspec.basename) {
+      await FlutterPubspec.load(entity.path)
+      ..setDependency(flutter)
+      ..setDependencyIfNecessary(flutterSprites);
+    }
+  }
+
+  // we don't update these, since they're their own things and don't depend on
+  // the above packages:
+  //   sky/tools/pubspec_maintenance/pubspec.yaml
+  //   sky/packages/material_design_icons/pubspec.yaml
+
+  FlutterPubspec.saveAll();
+}