Enable GitHub Actions with updated Rubocop and Danger

.github/workflows/danger.yml

@@ -0,0 +1,19 @@
+---
+name: Danger
+on:
+  pull_request:
+    ypes: [opened, reopened, edited, synchronize]
+jobs:
+  danger:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 2.6
+        bundler-cache: true
+    - name: Run Danger
+      run: bundle exec danger
+      env:
+        DANGER_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -0,0 +1,80 @@
+---
+name: test
+on:
+  push:
+    branches:
+      - "*"
+  pull_request:
+    branches:
+      - "*"
+jobs:
+  lint:
+    name: RuboCop
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 2.7
+        bundler-cache: true
+    - name: Run RuboCop
+      run: bundle exec rubocop
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby:
+          - 2.5
+          - 2.6
+          - 2.7
+        gemfile:
+          - Gemfile
+          - gemfiles/rack1.gemfile
+          - gemfiles/rack2.gemfile
+          - gemfiles/rack_edge.gemfile
+          - gemfiles/rails_edge.gemfile
+          - gemfiles/rails_5.gemfile
+          - gemfiles/rails_6.gemfile
+        experimental: [false]
+        include:
+          - ruby: 2.7
+            gemfile: 'gemfiles/multi_json.gemfile'
+            experimental: false
+          - ruby: 2.7
+            gemfile: 'gemfiles/multi_xml.gemfile'
+            experimental: false
+          - ruby: "ruby-head"
+            experimental: true
+          - ruby: "truffleruby-head"
+            experimental: true
+          - ruby: "jruby-head"
+            experimental: true
+    runs-on: ubuntu-20.04
+    continue-on-error: ${{ matrix.experimental }}
+    env:
+      BUNDLE_GEMFILE: ${{ matrix.gemfile }}
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+        bundler-cache: true
+
+    - name: Run tests
+      run: bundle exec rake spec
+
+    - name: Run tests (spec/integration/eager_load)
+      if: ${{ matrix.gemfile == 'Gemfile' }}
+      run: bundle exec rspec spec/integration/eager_load
+
+    - name: Run tests (spec/integration/multi_json)
+      if: ${{ matrix.gemfile == 'gemfiles/multi_json.gemfile' }}
+      run: bundle exec rspec spec/integration/multi_json
+
+    - name: Run tests (spec/integration/multi_xml)
+      if: ${{ matrix.gemfile == 'gemfiles/multi_xml.gemfile' }}
+      run: bundle exec rspec spec/integration/multi_xml

.rubocop.yml

@@ -1,6 +1,7 @@
 AllCops:
   NewCops: enable
   TargetRubyVersion: 2.4
+  SuggestExtensions: false
   Exclude:
     - vendor/**/*
     - bin/**/*