Update rubocop and rspec. Rubocop fixes

Author: michael-misshore

.rubocop_todo.yml

@@ -1,18 +1,34 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2015-10-29 13:19:55 -0500 using RuboCop version 0.34.1.
+# on 2017-12-29 15:04:25 +0000 using RuboCop version 0.52.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 3
-# Configuration parameters: AllowURI, URISchemes.
-Metrics/LineLength:
-  Max: 91
+# Offense count: 1
+Metrics/AbcSize:
+  Max: 19
 
 # Offense count: 1
-# Configuration parameters: Exclude.
-Style/FileName:
+# Configuration parameters: CountComments.
+Metrics/MethodLength:
+  Max: 31
+
+# Offense count: 1
+Naming/AccessorMethodName:
+  Exclude:
+    - 'spec/support/static_file_server.rb'
+
+# Offense count: 1
+# Configuration parameters: ExpectMatchingDefinition, Regex, IgnoreExecutableScripts, AllowedAcronyms.
+# AllowedAcronyms: CLI, DSL, ACL, API, ASCII, CPU, CSS, DNS, EOF, GUID, HTML, HTTP, HTTPS, ID, IP, JSON, LHS, QPS, RAM, RHS, RPC, SLA, SMTP, SQL, SSH, TCP, TLS, TTL, UDP, UI, UID, UUID, URI, URL, UTF8, VM, XML, XMPP, XSRF, XSS
+Naming/FileName:
   Exclude:
     - 'lib/critical-path-css-rails.rb'
+
+# Offense count: 4
+# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
+# URISchemes: http, https
+Metrics/LineLength:
+  Max: 96

critical-path-css-rails.gemspec

@@ -14,7 +14,7 @@ Gem::Specification.new do |s|
   s.executables  = `git ls-files -- bin/*`.split("\n").map { |f| File.basename(f) }
   s.require_path = 'lib'
 
-  s.add_development_dependency 'rspec', '~> 3.6'
+  s.add_development_dependency 'rspec', '~> 3.7'
 
   s.extensions = ['ext/npm/extconf.rb']
 end

ext/npm/extconf.rb

@@ -1,3 +1,2 @@
 File.write 'Makefile',
            "make:\n\t\ninstall:\n\truby install.rb\nclean:\n\t\n"
-

lib/critical-path-css-rails.rb

@@ -3,7 +3,7 @@
 require 'critical_path_css/rails/config_loader'
 
 module CriticalPathCss
-  CACHE_NAMESPACE = 'critical-path-css'
+  CACHE_NAMESPACE = 'critical-path-css'.freeze
 
   def self.generate(route)
     ::Rails.cache.write(

lib/critical_path_css/configuration.rb

@@ -1,7 +1,6 @@
 require 'erb'
 module CriticalPathCss
   class Configuration
-
     def initialize(config)
       @config = config
     end

lib/critical_path_css/css_fetcher.rb

@@ -33,7 +33,7 @@ def css_for_route(route)
           #  '^\.regexWorksToo'
         ],
         # ms; abort critical CSS generation after this timeout
-        'timeout' => 30000,
+        'timeout' => 30_000,
         # set to true to throw on CSS errors (will run faster if no errors)
         'strict' => false,
         # characters; strip out inline base64 encoded resources larger than this

lib/critical_path_css/rails/config_loader.rb

@@ -1,10 +1,10 @@
 module CriticalPathCss
   module Rails
     class ConfigLoader
-      CONFIGURATION_FILENAME = 'critical_path_css.yml'
+      CONFIGURATION_FILENAME = 'critical_path_css.yml'.freeze
 
       def load
-        config = YAML.load(ERB.new(File.read(configuration_file_path)).result)[::Rails.env]
+        config = YAML.safe_load(ERB.new(File.read(configuration_file_path)).result)[::Rails.env]
         config['css_path'] = "#{::Rails.root}/public" + (
             config['css_path'] ||
               ActionController::Base.helpers.stylesheet_path(

lib/critical_path_css/rails/version.rb

@@ -1,5 +1,5 @@
 module CriticalPathCSS
   module Rails
-    VERSION = '1.0.1'
+    VERSION = '1.0.1'.freeze
   end
 end

lib/npm_commands.rb

@@ -2,9 +2,8 @@
 
 # NPM wrapper with helpful error messages
 class NpmCommands
-
   # @return [Boolean] whether the installation succeeded
-  def install(*args) # rubocop:disable Metrics/MethodLength
+  def install(*args)
     return false unless check_nodejs_installed
     STDERR.puts 'Installing npm dependencies...'
     install_status = Dir.chdir File.expand_path('..', File.dirname(__FILE__)) do
@@ -24,7 +23,7 @@ def install(*args) # rubocop:disable Metrics/MethodLength
 
   private
 
-  def check_nodejs_installed # rubocop:disable Metrics/MethodLength
+  def check_nodejs_installed
     return true if executable?('node')
     STDERR.puts(
       '-' * 60,

spec/support/static_file_server.rb

@@ -2,7 +2,7 @@
 
 module StaticFileServer
   class << self
-    def start # rubocop:disable Metrics/MethodLength,Metrics/AbcSize
+    def start
       @port = get_free_port
       rd, wt = IO.pipe
       @pid = fork do