fix: remove support of ruby <2.4 and rails <4.2

.drone.yml

@@ -49,26 +49,6 @@ steps:
       RAILS_ENV: test
     <<: *spec_step_common
 
-  - name: Tests Ruby 2.2
-    environment:
-      COMPOSE_FILE_EXT: drone
-      DOCKER_RUBY_VERSION: 2.2
-      RUBY_IMAGE_TAG: 2.2-latest
-      POSTGRES_IMAGE_TAG: 11
-      REDIS_IMAGE_TAG: 4-alpine
-      RAILS_ENV: test
-    <<: *spec_step_common
-
-  - name: Tests Ruby 2.3
-    environment:
-      COMPOSE_FILE_EXT: drone
-      DOCKER_RUBY_VERSION: 2.3
-      RUBY_IMAGE_TAG: 2.3-latest
-      POSTGRES_IMAGE_TAG: 11
-      REDIS_IMAGE_TAG: 4-alpine
-      RAILS_ENV: test
-    <<: *spec_step_common
-
   - name: release
     image: abakpress/gem-publication:latest
     pull: if-not-exists

Appraisals

@@ -1,9 +1,3 @@
-if RUBY_VERSION < '2.4'
-  appraise 'rails4.0' do
-    gem 'rails', '~> 4.0.0'
-  end
-end
-
 appraise 'rails4.2' do
   gem 'rails', '~> 4.2.0'
 end

Gemfile

@@ -7,22 +7,6 @@ gemspec
 
 gem 'pg', '< 1.0.0'
 
-if RUBY_VERSION < '2.3'
-  gem 'nokogiri', '< 1.10.0', require: false
-  gem 'pry-byebug', '< 3.7.0', require: false
-  gem 'public_suffix', '< 3.1.0', require: false
-  gem 'redis', '< 4.1.2', require: false
-  gem 'oj', '< 3.8.0', require: false
-  gem 'rspec-rails', '< 4', require: false
-end
-
-if RUBY_VERSION < '2.4'
-  gem 'mock_redis', '< 0.20.0', require: false
-  gem 'shoulda-matchers', '< 4.1.0', require: false
-  gem 'redis-namespace', '< 1.7.0', require: false
-  gem 'simplecov-html', '< 0.11.0', require: false
-end
-
 if RUBY_VERSION < '2.5'
   gem 'sprockets', '< 4.0.0', require: false
 end

treasury.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
 
   spec.metadata['allowed_push_host'] = 'https://gems.railsc.ru'
 
-  spec.add_runtime_dependency 'rails', '>= 4.0.13', '< 5'
+  spec.add_runtime_dependency 'rails', '>= 4.2.0', '< 5'
   spec.add_runtime_dependency 'daemons', '>= 1.1.9'
   spec.add_runtime_dependency 'class_logger', '>= 1.0.1'
   spec.add_runtime_dependency 'callbacks_rb', '>= 0.0.1'