extensible.gemspec in extensible-0.0.2 vs extensible.gemspec in extensible-0.0.3

@@ -1,23 +1,46 @@
 # coding: utf-8
-lib = File.expand_path("../lib", __FILE__)
+lib = File.expand_path("../lib".freeze, __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require "extensible/version"
 
+require "extensible/version".freeze
+
 Gem::Specification.new do |spec|
-  spec.required_ruby_version = ">= 1.9"
-  spec.name = "extensible"
+  spec.author = "Gabriel de Oliveira".freeze
+  spec.files = Dir[
+    "*.gemspec".freeze,
+    "LICENSE.*".freeze,
+    "README.*".freeze,
+    "lib/**/*.rb".freeze
+  ]
+  spec.name = "extensible".freeze
+  spec.summary = "Ruby extensions made easy.".freeze
   spec.version = Extensible::VERSION
-  spec.authors = ["Gabriel de Oliveira"]
-  spec.email = ["[e-mail]"]
-  spec.summary = "Ruby extensions made easy."
-  spec.description = <<-EOS
+
+  spec.email = "[e-mail]".freeze
+  spec.homepage = "https://github.com/gdeoliveira/extensible".freeze
+  spec.license = "MIT".freeze
+
+  spec.description = <<-EOS.freeze
 Use Extensible on your custom extensions in order to get a set of advantages over traditional extensions that override
 the Module#extended method directly.
   EOS
-  spec.homepage = "https://github.com/gdeoliveira/extensible"
-  spec.license = "MIT"
-  spec.files = `git ls-files -z`.split("\x0")
-  spec.test_files = spec.files.grep(/^spec\//)
-  spec.require_paths = ["lib"]
-  spec.rdoc_options << "--title=Extensible"
+  spec.rdoc_options = [
+    "--main=README.md".freeze,
+    "--title=Extensible".freeze,
+    "LICENSE.txt".freeze,
+    "README.md".freeze,
+    "lib/".freeze
+  ].freeze
+  spec.required_ruby_version = ">= 1.9".freeze
+
+  spec.add_development_dependency "bundler".freeze, "~> 1.13.0".freeze
+  spec.add_development_dependency "codeclimate-test-reporter".freeze, "~> 0.6.0".freeze
+  spec.add_development_dependency "guard-rspec".freeze, "~> 4.7.3".freeze
+  spec.add_development_dependency "guard-rubocop".freeze, "~> 1.2.0".freeze
+  spec.add_development_dependency "io-console".freeze, "~> 0.4.6".freeze
+  spec.add_development_dependency "pry-byebug".freeze, "~> 3.4.0".freeze
+  spec.add_development_dependency "rake".freeze, "~> 11.2.2".freeze
+  spec.add_development_dependency "rdoc".freeze, "~> 4.2.2".freeze
+  spec.add_development_dependency "ruby_gntp".freeze, "~> 0.3.4".freeze
+  spec.add_development_dependency "simplecov".freeze, "~> 0.12.0".freeze
 end