Drop support older Rails, and add newer Rails support

.github/workflows/ci.yml

@@ -6,43 +6,37 @@ jobs:
   test:
     strategy:
       matrix:
-        include:
-          - gemfile: 6.0.gemfile
-            ruby: 2.5
-
-          - gemfile: 6.0.gemfile
-            ruby: 2.6
-
-          - gemfile: 6.0.gemfile
-            ruby: 2.7
-
-          - gemfile: 6.0.gemfile
-            ruby: '3.0'
-
-          - gemfile: 6.1.gemfile
-            ruby: '3.0'
-
-          - gemfile: 7.0.gemfile
-            ruby: '3.0'
-
-          - gemfile: 7.0.gemfile
-            ruby: '3.1'
-
-          - gemfile: 7.0.gemfile
-            ruby: '3.2'
-
+        ruby: ["3.4", "3.3", "3.2", "3.1", "3.0", "2.7"]
+        rails: ["8.0", "7.2", "7.1", "6.1"]
+        exclude:
+          - rails: "6.1"
+            ruby: "3.4"
+
+          - rails: "7.2"
+            ruby: "2.7"
+          - rails: "7.2"
+            ruby: "3.0"
+
+          - rails: "8.0"
+            ruby: "2.7"
+          - rails: "8.0"
+            ruby: "3.0"
+          - rails: "8.0"
+            ruby: "3.1"
     runs-on: ubuntu-latest
 
     services:
       redis:
         image: redis
-        ports: ['6379:6379']
+        ports: ["6379:6379"]
         options: >-
           --health-cmd "redis-cli ping"
           --health-interval 10s
           --health-timeout 5s
           --health-retries 5
 
+    env:
+      RAILS_VERSION: ${{ matrix.rails }}
     steps:
       - uses: actions/checkout@v4
 
@@ -52,7 +46,6 @@ jobs:
 
       - name: Install dependencies
         run: |
-          bundle config set gemfile "${GITHUB_WORKSPACE}/gemfiles/${{ matrix.gemfile }}"
           bundle install --jobs 4 --retry 3
 
       - name: Display Ruby version

Gemfile

@@ -6,4 +6,6 @@ gemspec
 
 gem "rubocop", require: false
 gem "codeclimate-test-reporter"
-gem "rack", "< 3"
+gem "concurrent-ruby", "< 1.3.5"
+
+gem "rails", "~> #{ENV.fetch('RAILS_VERSION', '8.0')}"

lib/split/dashboard.rb

@@ -29,7 +29,8 @@ class Dashboard < Sinatra::Base
       if Object.const_defined?("Rails") && Rails.respond_to?(:env)
         @current_env = Rails.env.titlecase
       else
-        @current_env = "Rack: #{Rack.version}"
+        rack_version = Rack.respond_to?(:version) ? Rack.version : Rack.release
+        @current_env = "Rack: #{rack_version}"
       end
       erb :index
     end

lib/split/persistence/cookie_adapter.rb

@@ -47,8 +47,9 @@ def default_options
         end
 
         def set_cookie_via_rack(key, value)
-          delete_cookie_header!(@response.header, key, value)
-          Rack::Utils.set_cookie_header!(@response.header, key, value)
+          headers = @response.respond_to?(:header) ? @response.header : @response.headers
+          delete_cookie_header!(headers, key, value)
+          Rack::Utils.set_cookie_header!(headers, key, value)
         end
 
         # Use Rack::Utils#make_delete_cookie_header after Rack 2.0.0

split.gemspec

@@ -35,6 +35,7 @@ Gem::Specification.new do |s|
   s.add_dependency "sinatra",         ">= 1.2.6"
   s.add_dependency "rubystats",       ">= 0.3.0"
   s.add_dependency "matrix"
+  s.add_dependency "bigdecimal"
 
   s.add_development_dependency "bundler",     ">= 1.17"
   s.add_development_dependency "simplecov",   "~> 0.15"