Start building the repository structure

.travis.yml

+language: dart
+sudo: false
+dart:
+  - stable
+before_script:
+  - ./travis/setup.sh
+script:
+  - ./travis/test.sh

packages/cassowary/pubspec.yaml

+name: cassowary
+description: Cassowary Constraint Solving Toolkit
+version: 0.1.7
+author: Flutter Authors <flutter-dev@googlegroups.com>
+homepage: https://github.com/flutter/flutter/tree/master/packages/cassowary
+environment:
+  sdk: '>=1.0.0 <2.0.0'
+dev_dependencies:
+  test: '>=0.12.0 <0.13.0'
+  test_runner: '<=0.2.16'
+  dart_coveralls: '<=0.3.0'

packages/newton/pubspec.yaml

+name: newton
+description: Simple Physics Simulations for Dart
+version: 0.1.5
+author: Flutter Authors <flutter-dev@googlegroups.com>
+homepage: https://github.com/flutter/flutter/tree/master/packages/newton
+environment:
+  sdk: '>=1.0.0 <2.0.0'
+dev_dependencies:
+  test: '>=0.12.0 <0.13.0'
+  test_runner: '<=0.2.16'
+  dart_coveralls: '<=0.3.0'

travis/setup.sh

+#!/bin/bash
+set -ex
+
+(cd packages/cassowary; pub get)
+(cd packages/newton; pub get)
+
+pub global activate tuneup

travis/test.sh

+#!/bin/bash
+set -ex
+
+(cd packages/cassowary; pub global run tuneup check; pub run test -j1)
+(cd packages/newton; pub global run tuneup check; pub run test -j1)