Migrate to GitHub Actions (#304)

Author: athomas

.github/workflows/test-package.yml

@@ -0,0 +1,72 @@
+name: Dart CI
+
+on:
+  # Run on PRs and pushes to the default branch.
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  schedule:
+    - cron: "0 0 * * 0"
+
+env:
+  PUB_ENVIRONMENT: bot.github
+
+jobs:
+  # Check code formatting and static analysis on a single OS (linux)
+  # against Dart dev and 2.7.0.
+  analyze:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sdk: [dev]
+        version: [latest]
+        include:
+          - sdk: stable
+            version: 2.7.0
+    steps:
+      - uses: actions/checkout@v2
+      - uses: cedx/setup-dart@v2 # TODO(dart-lang/setup-dart#3): use the official setup-dart action
+        with:
+          release-channel: ${{ matrix.sdk }}
+          version: ${{ matrix.version }}
+      - id: install
+        name: Install dependencies
+        run: pub get
+      - name: Check formatting
+        run: dartfmt --dry-run --set-exit-if-changed .
+        if: always() && steps.install.outcome == 'success'
+      - name: Analyze code
+        run: dartanalyzer --fatal-infos --fatal-warnings .
+        if: always() && steps.install.outcome == 'success'
+
+  # Run tests on a matrix consisting of two dimensions:
+  # 1. OS: ubuntu-latest, (macos-latest, windows-latest)
+  # 2. release channel: dev, 2.7.0
+  test:
+    needs: analyze
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        # Add macos-latest and/or windows-latest if relevant for this package.
+        os: [ubuntu-latest]
+        sdk: [dev]
+        version: [latest]
+        include:
+          - os: ubuntu-latest
+            sdk: stable
+            version: 2.7.0
+    steps:
+      - uses: actions/checkout@v2
+      - uses: cedx/setup-dart@v2 # TODO(dart-lang/setup-dart#3): use the official setup-dart action
+        with:
+          release-channel: ${{ matrix.sdk }}
+          version: ${{ matrix.version }}
+      - id: install
+        name: Install dependencies
+        run: pub get
+      - name: Run VM tests
+        run: pub run test --platform vm
+        if: always() && steps.install.outcome == 'success'

.travis.yml

@@ -1,5 +1,5 @@
 [![Pub package](https://img.shields.io/pub/v/code_builder.svg)](https://pub.dev/packages/code_builder)
-[![Build status](https://travis-ci.org/dart-lang/code_builder.svg)](https://travis-ci.org/dart-lang/code_builder)
+[![Build Status](https://github.com/dart-lang/code_builder/workflows/Dart%20CI/badge.svg?branch=master)](https://github.com/dart-lang/code_builder/actions?query=workflow%3A%22Dart+CI%22+branch%3Amaster)
 [![Gitter chat](https://badges.gitter.im/dart-lang/build.svg)](https://gitter.im/dart-lang/build)
 
 A fluent, builder-based library for generating valid Dart code.
@@ -29,15 +29,16 @@ void main() {
 ```
 
 Outputs:
+
 ```dart
 class Animal extends Organism {
   void eat() => print('Yum!');
 }
 ```
 
-Have a complicated set of dependencies for your generated code?
-`code_builder` supports automatic scoping of your ASTs to automatically
-use prefixes to avoid symbol conflicts:
+Have a complicated set of dependencies for your generated code? `code_builder`
+supports automatic scoping of your ASTs to automatically use prefixes to avoid
+symbol conflicts:
 
 ```dart
 import 'package:code_builder/code_builder.dart';
@@ -60,6 +61,7 @@ void main() {
 ```
 
 Outputs:
+
 ```dart
 import 'package:a/a.dart' as _i1;
 import 'package:b/b.dart' as _i2;
@@ -70,8 +72,8 @@ _i2.Other doOther() {}
 
 ## Contributing
 
-* Read and help us document common patterns over [at the wiki][wiki].
-* Is there a *bug* in the code? [File an issue][issue].
+- Read and help us document common patterns over [at the wiki][wiki].
+- Is there a _bug_ in the code? [File an issue][issue].
 
 If a feature is missing (the Dart language is always evolving) or you'd like an
 easier or better way to do something, consider [opening a pull request][pull].
@@ -91,9 +93,9 @@ will be on a best-effort basis.
 
 ### Updating generated (`.g.dart`) files
 
-> **NOTE**: There is currently a limitation in `build_runner` that requires
-> a workaround for developing this package. We expect this to be unnecessary
-> in the future.
+> **NOTE**: There is currently a limitation in `build_runner` that requires a
+> workaround for developing this package. We expect this to be unnecessary in
+> the future.
 
 Use [`build_runner`][build_runner]: