Configure GitHub Actions (#96)

* Create ci.yml

* Remove actions/cache

* Drop Ruby 2.4, 2.5 from TravisCI

Since CI is running on GitHub Workflows

* Remove `apt-get update`

* remove bundle install path

* Remove codeclimate-test-reporter from travis.yml

* it's not RSpec

* Create coverage.yml

* Add gemfile matrix

* Remove name from coverage workflow

* Delete .travis.yml

* Add freeze for constant

* Support Jekyll 4.0

* CI against Jekyll v4.0

* Add rubocop workflow

* Add gem install bundler

* Exclude Ruby 2.4 x Jekyll 4

```
Bundler found conflicting requirements for the RubyGems version:
  In jekyll_4.0.gemfile:
    RubyGems (= 2.6.14.4)

    jekyll (= 4.0) was resolved to 4.0.0, which depends on
      RubyGems (>= 2.7.0)
```

* Remove debug option

Author: toshimaru

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: CI
+on: [push]
+jobs:
+  build:
+    strategy:
+      matrix:
+        ruby: [2.4, 2.5, 2.6, 2.7]
+        gemfile:
+        - gemfiles/jekyll_4.0.gemfile
+        - gemfiles/jekyll_3.8.gemfile
+        - gemfiles/jekyll_3.7.gemfile
+        - gemfiles/jekyll_3.6.gemfile
+        exclude:
+        - ruby: 2.4
+          gemfile: gemfiles/jekyll_4.0.gemfile
+    env:
+      BUNDLE_GEMFILE: ${{ matrix.gemfile }}
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby ${{ matrix.ruby }}
+      uses: eregon/use-ruby-action@master
+      with:
+        ruby-version: ${{ matrix.ruby }}
+    - name: bundle install
+      run: |
+        gem install bundler
+        bundle install --jobs 4 --retry 3
+    - name: Run Test
+      run: bundle exec rake

.github/workflows/coverage.yml

@@ -0,0 +1,21 @@
+name: Coverage
+on: [push]
+jobs:
+  build:
+    strategy:
+      matrix:
+        ruby: [2.6]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby ${{ matrix.ruby }}
+      uses: eregon/use-ruby-action@master
+      with:
+        ruby-version: ${{ matrix.ruby }}
+    - name: bundle install
+      run: bundle install --jobs 4 --retry 3
+    - uses: paambaati/[email protected]
+      env:
+        CC_TEST_REPORTER_ID: 6b81e393ea6ad38560386f650ea2fb0e57a7beb5e20f8c8364fabee30d5bff07
+      with:
+        coverageCommand: bundle exec rake

.github/workflows/rubocop.yml

@@ -0,0 +1,18 @@
+name: RuboCop
+on: [push]
+jobs:
+  build:
+    strategy:
+      matrix:
+        ruby: [2.6]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby ${{ matrix.ruby }}
+      uses: eregon/use-ruby-action@master
+      with:
+        ruby-version: ${{ matrix.ruby }}
+    - name: bundle install
+      run: bundle install --jobs 4 --retry 3
+    - name: Run RuboCop
+      run: bundle exec rubocop

.travis.yml

@@ -1,5 +1,9 @@
 # frozen_string_literal: true
 
+appraise 'jekyll-4.0' do
+  gem 'jekyll', '4.0'
+end
+
 appraise 'jekyll-3.8' do
   gem 'jekyll', '3.8'
 end

Appraisals

@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "jekyll", "4.0"
+
+gemspec path: "../"

gemfiles/jekyll_4.0.gemfile

@@ -4,7 +4,7 @@ module Jekyll
   module TableOfContents
     # Parse html contents and generate table of contents
     class Parser
-      PUNCTUATION_REGEXP = /[^\p{Word}\- ]/u
+      PUNCTUATION_REGEXP = /[^\p{Word}\- ]/u.freeze
 
       def initialize(html, options = {})
         @doc = Nokogiri::HTML::DocumentFragment.parse(html)