refactor!: Run chefstlye over the codebase

Gemfile

@@ -1,3 +1,22 @@
 source 'https://rubygems.org'
 
 gemspec
+
+group :development do
+  gem 'bundler'
+  gem 'rake'
+  # Style checker gems.
+  gem 'countloc'
+
+  # Unit testing gems.
+  gem 'rspec', '~> 3.2'
+  gem 'rspec-its', '~> 1.2'
+  gem 'fuubar', '~> 2.0'
+  # gem 'simplecov', '~> 0.9'
+  gem 'codecov', '~> 0.0', '>= 0.0.2'
+  gem 'chefstyle', '~> 2.2', '>= 2.2.3'
+
+  # Integration testing gems.
+  gem 'kitchen-inspec', '~> 2.0'
+  gem 'train', '>= 2.1', '< 4.0' # validate 4.x when it's released
+end

Rakefile

@@ -1,13 +1,4 @@
 require "bundler/gem_tasks"
-require 'cane/rake_task'
-require 'tailor/rake_task'
-
-desc "Run cane to check quality metrics"
-Cane::RakeTask.new do |cane|
-  cane.canefile = './.cane'
-end
-
-Tailor::RakeTask.new
 
 desc "Display LOC stats"
 task :stats do
@@ -16,27 +7,20 @@ task :stats do
 end
 
 desc "Run all quality tasks"
-task :quality => [:cane, :tailor, :stats]
-
-task :default => [:quality]
+task quality: [:stats]
 
-# begin
-#   require 'kitchen/rake_tasks'
-#   Kitchen::RakeTasks.new
-# rescue LoadError
-#   puts ">>>>> Kitchen gem not loaded, omitting tasks" unless ENV['CI']
-# end
+task default: [:quality]
 
 # Create the spec task.
-require 'rspec/core/rake_task'
+require "rspec/core/rake_task"
 RSpec::Core::RakeTask.new(:spec, :tag) do |t, args|
   t.rspec_opts = [].tap do |a|
-    a << '--color'
-    a << "--format #{ENV['CI'] ? 'documentation' : 'Fuubar'}"
-    a << '--backtrace' if ENV['VERBOSE'] || ENV['DEBUG']
-    a << "--seed #{ENV['SEED']}" if ENV['SEED']
+    a << "--color"
+    a << "--format #{ENV["CI"] ? "documentation" : "Fuubar"}"
+    a << "--backtrace" if ENV["VERBOSE"] || ENV["DEBUG"]
+    a << "--seed #{ENV["SEED"]}" if ENV["SEED"]
     a << "--tag #{args[:tag]}" if args[:tag]
     a << "--default-path test"
-    a << '-I test/spec'
-  end.join(' ')
+    a << "-I test/spec"
+  end.join(" ")
 end

kitchen-docker.gemspec

@@ -1,40 +1,20 @@
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path("../lib", __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require 'kitchen/docker/docker_version'
+require "kitchen/docker/docker_version"
 
 Gem::Specification.new do |spec|
-  spec.name          = 'kitchen-docker'
+  spec.name          = "kitchen-docker"
   spec.version       = Kitchen::Docker::DOCKER_VERSION
-  spec.authors       = ['Sean Porter']
-  spec.email         = ['portertech@gmail.com']
+  spec.authors       = ["Sean Porter"]
+  spec.email         = ["portertech@gmail.com"]
   spec.description   = %q{A Docker Driver for Test Kitchen}
   spec.summary       = spec.description
-  spec.homepage      = 'https://github.com/test-kitchen/kitchen-docker'
-  spec.license       = 'Apache 2.0'
+  spec.homepage      = "https://github.com/test-kitchen/kitchen-docker"
+  spec.license       = "Apache 2.0"
 
   spec.files         = `git ls-files`.split($/)
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
-  spec.require_paths = ['lib']
+  spec.require_paths = ["lib"]
 
-  spec.add_dependency 'test-kitchen', '>= 1.0.0'
-
-  spec.add_development_dependency 'bundler'
-  spec.add_development_dependency 'rake'
-
-  # Style checker gems.
-  spec.add_development_dependency 'cane'
-  spec.add_development_dependency 'tailor'
-  spec.add_development_dependency 'countloc'
-
-  # Unit testing gems.
-  spec.add_development_dependency 'rspec', '~> 3.2'
-  spec.add_development_dependency 'rspec-its', '~> 1.2'
-  spec.add_development_dependency 'fuubar', '~> 2.0'
-  spec.add_development_dependency 'simplecov', '~> 0.9'
-  spec.add_development_dependency 'codecov', '~> 0.0', '>= 0.0.2'
-  spec.add_development_dependency 'chefstyle'
-
-  # Integration testing gems.
-  spec.add_development_dependency 'kitchen-inspec', '~> 2.0'
-  spec.add_development_dependency 'train', '>= 2.1', '< 4.0' # validate 4.x when it's released
+  spec.add_dependency "test-kitchen", ">= 1.0.0", "< 4.0"
 end

lib/docker/version.rb

@@ -12,13 +12,13 @@
 # limitations under the License.
 
 begin
-  require 'docker'
+  require "docker"
 
   # Override API_VERSION constant in docker-api gem to use version 1.24 of the Docker API
   # This override is for the docker-api gem to communicate to the Docker engine on Windows
   module Docker
-    VERSION = '0.0.0'
-    API_VERSION = '1.24'
+    VERSION = "0.0.0".freeze
+    API_VERSION = "1.24".freeze
   end
 rescue LoadError => e
   logger.debug("[Docker] docker-api gem not found for InSpec verifier. #{e}")

lib/kitchen/docker/container.rb

@@ -11,10 +11,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-require_relative 'helpers/cli_helper'
-require_relative 'helpers/container_helper'
-require_relative 'helpers/file_helper'
-require_relative 'helpers/image_helper'
+require_relative "helpers/cli_helper"
+require_relative "helpers/container_helper"
+require_relative "helpers/file_helper"
+require_relative "helpers/image_helper"
 
 module Kitchen
   module Docker
@@ -33,7 +33,7 @@ def create(state)
           info("Container ID #{state[:container_id]} already exists.")
         elsif !container_exists?(state) && state[:container_id]
           raise ActionFailed, "Container ID #{state[:container_id]} was found in the kitchen state data, "\
-                              'but the container does not exist.'
+                              "but the container does not exist."
         end
 
         state[:username] = @config[:username]
@@ -49,7 +49,7 @@ def destroy(state)
       end
 
       def hostname(state)
-        hostname = 'localhost'
+        hostname = "localhost"
 
         if remote_socket?
           hostname = socket_uri.host

lib/kitchen/docker/container/linux.rb

@@ -11,13 +11,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-require 'base64'
-require 'openssl'
-require 'securerandom'
-require 'shellwords'
+require "base64" unless defined?(Base64)
+require "openssl" unless defined?(OpenSSL)
+require "securerandom" unless defined?(SecureRandom)
+require "shellwords" unless defined?(Shellwords)
 
-require_relative '../container'
-require_relative '../helpers/dockerfile_helper'
+require_relative "../container"
+require_relative "../helpers/dockerfile_helper"
 
 module Kitchen
   module Docker
@@ -34,7 +34,7 @@ def initialize(config)
         def create(state)
           super
 
-          debug('Creating Linux container')
+          debug("Creating Linux container")
           generate_keys
 
           state[:ssh_key] = @config[:private_key]
@@ -58,7 +58,7 @@ def execute(command)
           debug("Uploading temp file #{temp_file} to #{remote_path} on container")
           upload(temp_file, remote_path)
 
-          debug('Deleting temp file from local filesystem')
+          debug("Deleting temp file from local filesystem")
           ::File.delete(temp_file)
 
           # Replace any environment variables used in the path and execute script file
@@ -76,13 +76,13 @@ def generate_keys
           MUTEX_FOR_SSH_KEYS.synchronize do
             if !File.exist?(@config[:public_key]) || !File.exist?(@config[:private_key])
               private_key = OpenSSL::PKey::RSA.new(2048)
-              blobbed_key = Base64.encode64(private_key.to_blob).gsub("\n", '')
+              blobbed_key = Base64.encode64(private_key.to_blob).gsub("\n", "")
               public_key = "ssh-rsa #{blobbed_key} kitchen_docker_key"
-              File.open(@config[:private_key], 'w') do |file|
+              File.open(@config[:private_key], "w") do |file|
                 file.write(private_key)
                 file.chmod(0600)
               end
-              File.open(@config[:public_key], 'w') do |file|
+              File.open(@config[:public_key], "w") do |file|
                 file.write(public_key)
                 file.chmod(0600)
               end
@@ -91,7 +91,7 @@ def generate_keys
         end
 
         def parse_container_ssh_port(output)
-          _host, port = output.split(':')
+          _host, port = output.split(":")
           port.to_i
         rescue => e
           raise ActionFailed, "Could not parse Docker port output for container SSH port. #{e}"
@@ -113,21 +113,21 @@ def dockerfile
           platform = dockerfile_platform
           username = @config[:username]
           public_key = IO.read(@config[:public_key]).strip
-          homedir = username == 'root' ? '/root' : "/home/#{username}"
+          homedir = username == "root" ? "/root" : "/home/#{username}"
           base = dockerfile_base_linux(username, homedir)
 
-          custom = ''
+          custom = ""
           Array(@config[:provision_command]).each do |cmd|
             custom << "RUN #{cmd}\n"
           end
 
           ssh_key = "RUN echo #{Shellwords.escape(public_key)} >> #{homedir}/.ssh/authorized_keys"
 
           # Empty string to ensure the file ends with a newline.
-          output = [from, dockerfile_proxy_config, platform, base, custom, ssh_key, ''].join("\n")
-          debug('--- Start Dockerfile ---')
+          output = [from, dockerfile_proxy_config, platform, base, custom, ssh_key, ""].join("\n")
+          debug("--- Start Dockerfile ---")
           debug(output.strip)
-          debug('--- End Dockerfile ---')
+          debug("--- End Dockerfile ---")
           output
         end
       end

lib/kitchen/docker/container/windows.rb

@@ -11,9 +11,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-require 'securerandom'
+require "securerandom" unless defined?(SecureRandom)
 
-require_relative '../container'
+require_relative "../container"
 
 module Kitchen
   module Docker
@@ -26,7 +26,7 @@ def initialize(config)
         def create(state)
           super
 
-          debug('Creating Windows container')
+          debug("Creating Windows container")
           state[:username] = @config[:username]
           state[:image_id] = build_image(state, dockerfile) unless state[:image_id]
           state[:container_id] = run_container(state) unless state[:container_id]
@@ -35,19 +35,19 @@ def create(state)
 
         def execute(command)
           # Create temp script file and upload files to container
-          debug('Executing command on Windows container')
+          debug("Executing command on Windows container")
           filename = "docker-#{::SecureRandom.uuid}.ps1"
           temp_file = ".\\.kitchen\\temp\\#{filename}"
           create_temp_file(temp_file, command)
 
-          remote_path = @config[:temp_dir].tr('/', '\\')
+          remote_path = @config[:temp_dir].tr("/", "\\")
           debug("Creating directory #{remote_path} on container")
           create_dir_on_container(@config, remote_path)
 
           debug("Uploading temp file #{temp_file} to #{remote_path} on container")
           upload(temp_file, remote_path)
 
-          debug('Deleting temp file from local filesystem')
+          debug("Deleting temp file from local filesystem")
           ::File.delete(temp_file)
 
           # Replace any environment variables used in the path and execute script file
@@ -63,20 +63,20 @@ def execute(command)
         protected
 
         def dockerfile
-          raise ActionFailed, "Unknown platform '#{@config[:platform]}'" unless @config[:platform] == 'windows'
+          raise ActionFailed, "Unknown platform '#{@config[:platform]}'" unless @config[:platform] == "windows"
           return dockerfile_template if @config[:dockerfile]
 
           from = "FROM #{@config[:image]}"
 
-          custom = ''
+          custom = ""
           Array(@config[:provision_command]).each do |cmd|
             custom << "RUN #{cmd}\n"
           end
 
-          output = [from, dockerfile_proxy_config, custom, ''].join("\n")
-          debug('--- Start Dockerfile ---')
+          output = [from, dockerfile_proxy_config, custom, ""].join("\n")
+          debug("--- Start Dockerfile ---")
           debug(output.strip)
-          debug('--- End Dockerfile ---')
+          debug("--- End Dockerfile ---")
           output
         end
       end

lib/kitchen/docker/docker_version.rb

@@ -16,6 +16,6 @@
 module Kitchen
   module Docker
     # Version string for Docker Kitchen driver
-    DOCKER_VERSION = "3.0.0"
+    DOCKER_VERSION = "3.0.0".freeze
   end
 end

lib/kitchen/docker/erb_context.rb

@@ -13,14 +13,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-require 'erb'
+require "erb" unless defined?(Erb)
 
 module Kitchen
   module Docker
     class ERBContext
-      def initialize(config={})
+      def initialize(config = {})
         config.each do |key, value|
-          instance_variable_set('@' + key.to_s, value)
+          instance_variable_set("@" + key.to_s, value)
         end
       end