add enough files to set up travis support

.travis.yml

@@ -0,0 +1,13 @@
+language: dart
+dart:
+  - "dev/raw/latest"
+
+script: ./tool/travis.sh
+
+branches:
+  only:
+    - master
+
+cache:
+  directories:
+  - $HOME/.pub-cache

README.md

@@ -1,4 +1,5 @@
 # Flutter DevTools
+[![Build Status](https://travis-ci.org/flutter/devtools.svg?branch=master)](https://travis-ci.org/flutter/devtools)
 
 Performance tools for Flutter.
 

analysis_options.yaml

@@ -0,0 +1,19 @@
+analyzer:
+  errors:
+    unused_import: error
+
+#TODO: Normalize this with /flutter/flutter/blob/master/analysis_options.yaml.
+linter:
+  rules:
+    - avoid_init_to_null
+    - avoid_return_types_on_setters
+    - camel_case_types
+    - directives_ordering
+    - hash_and_equals
+    - iterable_contains_unrelated_type
+    - list_remove_unrelated_type
+    - prefer_final_fields
+    - slash_for_doc_comments
+    - test_types_in_equals
+    - unrelated_type_equality_checks
+    - valid_regexps

lib/hello.dart

@@ -0,0 +1,7 @@
+// Copyright 2018 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.
+
+void main() {
+  print('hello');
+}

pubspec.yaml

@@ -0,0 +1,17 @@
+name: devtools
+description: Performance tools for Flutter.
+version: 0.0.1
+homepage: https://github.com/flutter/devtools
+
+environment:
+  sdk: '>=2.0.0-dev <3.0.0'
+
+dependencies:
+  intl: ^0.15.0
+  logging: ^0.11.0
+  vm_service_lib: ^0.3.8
+
+dev_dependencies:
+  build_runner: any
+  build_web_compilers: any
+  test: ^1.0.0

tool/travis.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Copyright 2018 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.
+
+# Fast fail the script on failures.
+set -e
+
+# Print out the Dart version in use.
+dart --version
+
+# Add globally activated packages to the path.
+export PATH="$PATH":"~/.pub-cache/bin"
+
+# Analyze the source.
+pub global activate tuneup
+tuneup check --ignore-infos
+
+# Ensure we can build the app.
+pub global activate webdev
+webdev build