Minor rubocop changes, using bundle exec for dev:quality

.rubocop.yml

@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: 2.5
+  TargetRubyVersion: 2.5.1
 
 Metrics/BlockLength:
   Exclude:

.travis.yml

@@ -2,7 +2,6 @@ language: ruby
 
 rvm:
   - 2.5.1
-  - 2.2.0
 before_install:
   - gem install bundler -v 1.16.4
 

Rakefile

@@ -21,12 +21,6 @@ task :clean do
   system 'rm -f *.gem Gemfile.lock'
 end
 
-desc "Build #{GEM_NAME_VERSION}"
-task "build-dev": :clean do
-  puts "Building #{GEM_NAME_VERSION}".blue
-  system "gem build #{GEM_NAME}.gemspec"
-end
-
 desc "Build #{GEM_NAME_VERSION}"
 task build: :clean do
   puts "Building #{GEM_NAME_VERSION}".blue
@@ -53,6 +47,20 @@ task :uninstall do
   system "gem uninstall -xq #{GEM_NAME}"
 end
 
+namespace :dev do
+  desc 'Analyze code quality (rubocop, flog, flay)'
+  task :quality do
+    puts 'Analyzing format with rubocop'.blue
+    system 'bundle exec rubocop'
+
+    puts 'Checking code quality. Lower is better'.blue
+    system 'bundle exec flog lib/'
+
+    puts 'Checking code duplication. Prime to refactor'.blue
+    system 'bundle exec flay lib/'
+  end
+end
+
 namespace :doc do
   desc "Build documentation into 'doc/'"
   task :build do

vidazing_logger.gemspec

@@ -15,10 +15,7 @@ Gem::Specification.new do |s| # rubocop:disable Metrics/BlockLength
   s.executables << 'vidazing_logger'
 
   s.rubygems_version = '2.7.7'
-
-  # rubocop:disable Gemspec/RequiredRubyVersion
-  s.required_ruby_version = '>= 2.2.0'
-  # rubocop:enable Gemspec/RequiredRubyVersion
+  s.required_ruby_version = '>= 2.5.1'
 
   s.files         = `git ls-files -z`.split("\x0").reject \
                      { |f| f.match(%r{^(test|spec)/}) }
@@ -28,10 +25,12 @@ Gem::Specification.new do |s| # rubocop:disable Metrics/BlockLength
 
   s.add_development_dependency 'byebug', '10.0.2'
   s.add_development_dependency 'coveralls', '0.8.22'
+  s.add_development_dependency 'flay', '2.12.0'
+  s.add_development_dependency 'flog', '4.6.2'
   s.add_development_dependency 'pry', '0.10.4'
   s.add_development_dependency 'pry-byebug', '3.6.0'
   s.add_development_dependency 'rainbow', '3.0.0'
-  s.add_development_dependency 'rake', '~> 0'
+  s.add_development_dependency 'rake', '12.3.1'
   s.add_development_dependency 'rspec', '3.8.0'
   s.add_development_dependency 'rubocop', '0.58.2'
   s.add_development_dependency 'simplecov', '0.16.1'