Migrate TravisCI jobs to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,103 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches:
+    - master
+    - /.*-stable/
+  pull_request:
+    branches:
+    - master
+    - /.*-stable/
+
+jobs:
+  ci:
+    if: "!contains(github.event.commits[0].message, '[ci skip]')"
+    name: 'Ruby ${{ matrix.ruby_version }}'
+    runs-on: 'ubuntu-latest'
+
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby_version:
+        - 2.5
+        - 2.7
+        - jruby-9.2.11.1
+
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 5
+    - name: "Set up Ruby ${{ matrix.ruby_version }}"
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby_version }}
+        bundler-cache: true
+    - name: Run Unit Tests
+      run: bash script/test
+      env:
+        CI: true
+    - name: Run Cucumber Features
+      run: bash script/cucumber
+      env:
+        CI: true
+    - name: Sanity Check
+      run: bash script/default-site
+
+  style_check:
+    if: "!contains(github.event.commits[0].message, '[ci skip]')"
+    name: 'Code Style Check (Ruby ${{ matrix.ruby_version }})'
+    runs-on: 'ubuntu-latest'
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby_version:
+        - 2.5
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 5
+    - name: "Set up Ruby ${{ matrix.ruby_version }}"
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby_version }}
+        bundler-cache: true
+    - name: Run RuboCop
+      run: bash script/fmt
+
+  profile_docs:
+    if: "!contains(github.event.commits[0].message, '[ci skip]')"
+    name: 'Profile Docs Site (Ruby ${{ matrix.ruby_version }})'
+    runs-on: 'ubuntu-latest'
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby_version:
+        - 2.4 # Minimum required Ruby version in gemspec
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 5
+    - name: "Set up Ruby ${{ matrix.ruby_version }}"
+      uses: actions/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby_version }}
+    - name: Cache dependencies
+      uses: actions/cache@v1
+      with:
+        path: vendor/bundle
+        key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-gems-
+    - name: 'Update Rubygems and Bundler'
+      run: |
+        gem update --system --no-document
+        gem update bundler --no-document
+    - name: Set up bundle
+      run: |
+        bundle config path vendor/bundle
+        bundle install --jobs 4 --retry 3
+    - name: Build Docs site with --profile
+      run: bash script/profile-docs
+    - name: Profile memory usage of building Docs site
+      run: bash script/memprof

README.markdown

@@ -1,19 +1,15 @@
 # [Jekyll](https://jekyllrb.com/)
 
 [![Gem Version](https://img.shields.io/gem/v/jekyll.svg)][ruby-gems]
-[![Linux Build Status](https://img.shields.io/travis/jekyll/jekyll/master.svg?label=Linux%20build)][travis]
+[![Linux Build Status](https://github.com/jekyll/jekyll/workflows/Continuous%20Integration/badge.svg)][ci-workflow]
 [![Windows Build status](https://img.shields.io/appveyor/ci/jekyll/jekyll/master.svg?label=Windows%20build)][appveyor]
-[![Maintainability](https://api.codeclimate.com/v1/badges/8ba0cb5b17bb9848e128/maintainability)][codeclimate]
-[![Test Coverage](https://api.codeclimate.com/v1/badges/8ba0cb5b17bb9848e128/test_coverage)][coverage]
 [![Security](https://hakiri.io/github/jekyll/jekyll/master.svg)][hakiri]
 [![Backers on Open Collective](https://opencollective.com/jekyll/backers/badge.svg)](#backers)
 [![Sponsors on Open Collective](https://opencollective.com/jekyll/sponsors/badge.svg)](#sponsors)
 
 [ruby-gems]: https://rubygems.org/gems/jekyll
-[codeclimate]: https://codeclimate.com/github/jekyll/jekyll
-[coverage]: https://codeclimate.com/github/jekyll/jekyll/coverage
 [hakiri]: https://hakiri.io/github/jekyll/jekyll/master
-[travis]: https://travis-ci.org/jekyll/jekyll
+[ci-workflow]: https://github.com/jekyll/jekyll/actions?query=workflow%3A%22Continuous+Integration%22+branch%3Amaster
 [appveyor]: https://ci.appveyor.com/project/jekyll/jekyll/branch/master
 
 Jekyll is a simple, blog-aware, static site generator perfect for personal, project, or organization sites. Think of it like a file-based CMS, without all the complexity. Jekyll takes your content, renders Markdown and Liquid templates, and spits out a complete, static website ready to be served by Apache, Nginx or another web server. Jekyll is the engine behind [GitHub Pages](https://pages.github.com), which you can use to host sites right from your GitHub repositories.