Add style-check workflow

Author: ashmaroli

.github/workflows/ci.yml

@@ -31,3 +31,21 @@ jobs:
           bundler-cache: true
       - name: Run Unit Tests
         run: bundle exec rake test
+
+  style_check:
+    name: "Style Check (Ruby ${{ matrix.ruby_version }})"
+    runs-on: "ubuntu-latest"
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby_version:
+          - "3.3"
+    steps:
+      - uses: actions/checkout@v4
+      - 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

.rubocop.yml

@@ -4,9 +4,7 @@ inherit_gem:
   rubocop-jekyll: .rubocop.yml
 
 AllCops:
-  TargetRubyVersion: 2.3
-  Exclude:
-    - vendor/**/*
+  TargetRubyVersion: 2.7
 
 Lint/ShadowingOuterLocalVariable:
   Exclude:

jekyll-archives.gemspec

@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
   all_files     = `git ls-files -z`.split("\x0")
   s.files       = all_files.grep(%r!^(lib)/!)
 
-  s.required_ruby_version = ">= 2.3.0"
+  s.required_ruby_version = ">= 2.7.0"
 
   s.add_dependency "jekyll", ">= 3.6", "< 5.0"