Use only inspec cops of cookstyle gem

Signed-off-by: Nikita Mathur <nikita.mathur@chef.io>

Gemfile

@@ -20,6 +20,7 @@ end
 # but our runtime dep is still 3.9+
 gem "rspec", ">= 3.10"
 
+# checks code offenses with inspec check
 gem "cookstyle"
 
 group :omnibus do

lib/inspec/profile.rb

@@ -389,7 +389,7 @@ module Inspec
     def cookstyle_linting_check
       msgs = []
       output = cookstyle_rake_output.split("Offenses:").last
-      msgs = output.split("\n").select { |x| (x.include? "R:") || (x.include? "C:") } unless output.nil?
+      msgs = output.split("\n").select { |x| x =~ /[A-Z]:/ } unless output.nil?
       msgs
     end
 
@@ -399,7 +399,11 @@ module Inspec
       require "rubocop/rake_task"
       begin
         RuboCop::RakeTask.new(:cookstyle_lint) do |spec|
-          spec.options  += ["--display-cop-names", "--parallel"]
+          spec.options += [
+            "--display-cop-names",
+            "--parallel",
+            "--only=InSpec/Deprecations,InSpec/Deprecations/AttributeHelper,InSpec/Deprecations/AttributeDefault",
+          ]
           spec.patterns += Dir.glob("#{@target}/**/*").reject { |f| File.directory?(f) || (f.include? "inspec.lock") }
           spec.fail_on_error = false
         end

test/functional/inspec_check_test.rb

@@ -126,8 +126,8 @@ describe "inspec check" do
     end
 
     it "fails and returns offenses in a profile" do
-      out = inspec("check #{profile_path}/control-tags")
-      _(out.stdout).must_match(/29 offenses/)
+      out = inspec("check #{profile_path}/inputs/metadata-basic")
+      _(out.stdout).must_match(/1 offenses/)
       assert_exit_code 1, out
     end
   end