RuboCop coding conventions

Gemfile.lock

@@ -1,21 +1,36 @@
 PATH
   remote: .
   specs:
-    to_boolean (1.0.1)
+    to_boolean (1.0.2)
 
 GEM
   remote: https://rubygems.org/
   specs:
     ansi (1.4.3)
+    ast (2.0.0)
+    astrolabe (1.3.0)
+      parser (>= 2.2.0.pre.3, < 3.0)
     builder (3.2.2)
     minitest (5.4.1)
     minitest-reporters (1.0.5)
       ansi
       builder
       minitest (>= 5.0)
       ruby-progressbar
+    parser (2.2.0.pre.4)
+      ast (>= 1.1, < 3.0)
+      slop (~> 3.4, >= 3.4.5)
+    powerpack (0.0.9)
+    rainbow (2.0.0)
     rake (10.3.2)
+    rubocop (0.26.1)
+      astrolabe (~> 1.3)
+      parser (>= 2.2.0.pre.4, < 3.0)
+      powerpack (~> 0.0.6)
+      rainbow (>= 1.99.1, < 3.0)
+      ruby-progressbar (~> 1.4)
     ruby-progressbar (1.5.1)
+    slop (3.6.0)
 
 PLATFORMS
   ruby
@@ -24,4 +39,5 @@ DEPENDENCIES
   minitest (~> 5.4)
   minitest-reporters (~> 1.0)
   rake (~> 10.3)
+  rubocop (~> 0.26)
   to_boolean!

Rakefile

@@ -1,9 +1,17 @@
 require 'rake/testtask'
+require 'rubocop/rake_task'
 
+desc 'Execute unit tests'
 Rake::TestTask.new do |t|
   t.libs << 'spec'
   t.test_files = FileList['spec/spec_*.rb']
   t.verbose = true
 end
 
+desc 'Execute RuboCop static code analysis'
+RuboCop::RakeTask.new(:rubocop) do |t|
+  t.patterns = ['lib/**/*.rb']
+  t.fail_on_error = false
+end
+
 task :default => :test

lib/to_boolean.rb

@@ -1,6 +1,8 @@
+# Core extension to the Object class
+#
 class Object
   def to_boolean
-    value = self.is_a?(String) ? self.downcase : self
+    value = self.is_a?(String) ? downcase : self
     [true, 'true', 1, '1'].include?(value)
   end
 end

lib/version.rb

@@ -0,0 +1,5 @@
+# Gem version
+#
+module ToBoolean
+  VERSION = '1.0.2'
+end

to_boolean.gemspec

@@ -1,12 +1,13 @@
+require_relative 'lib/version'
+
 Gem::Specification.new do |gem|
   gem.name          = 'to_boolean'
-  gem.version       = '1.0.1'
+  gem.version       = ToBoolean::VERSION
   gem.platform      = Gem::Platform::RUBY
   gem.authors       = ['Jani Jegoroff']
-  gem.date          = '2014-09-10'
   gem.email         = ['[email protected]']
   gem.summary       = 'Simple gem that provides to_boolean method.'
-  gem.description   = 'Ruby core extension that converts string and integer values to boolean.'
+  gem.description   = 'Core extension that converts string and integer values to boolean.'
   gem.homepage      = 'http://github.com/JaniJegoroff/to_boolean'
   gem.license       = 'MIT'
 
@@ -18,4 +19,5 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'rake', '~> 10.3'
   gem.add_development_dependency 'minitest', '~> 5.4'
   gem.add_development_dependency 'minitest-reporters', '~> 1.0'
+  gem.add_development_dependency 'rubocop', '~> 0.26'
 end