Merge pull request #5645 from inspec/vasundhara/update-code-to-remove-2.4

Update code to remove ruby 2.4 support

lib/inspec/run_data/profile.rb

@@ -49,7 +49,6 @@ module Inspec
     end
 
     class Profile
-      # Good candidate for keyword_init, but that is not in 2.4
       Dependency = Struct.new(
         :name, :path, :status, :status_message, :git, :url, :compliance, :supermarket, :branch, :tag, :commit, :version, :relative_path
       ) do
@@ -71,7 +70,6 @@ module Inspec
         end
       end
 
-      # Good candidate for keyword_init, but that is not in 2.4
       Group = Struct.new(
         :title, :controls, :id
       ) do

support/rebuild_inspec_test_fixture_plugin.sh

@@ -10,7 +10,7 @@ FIXTURE_BASE=test/fixtures/config_dirs
 FIXTURE_VERSIONS="1 2"
 
 # The format here is "<actual_version>,<abi_version> <another_version><<another_abi_version>""
-RUBY_VERSIONS="2.4.5,2.4.0 2.5.3,2.5.0 2.6.2,2.6.0"
+RUBY_VERSIONS="2.5.3,2.5.0 2.6.2,2.6.0"
 
 # Make two fresh gems
 cd $PLUGIN_SRC_DIR

test/functional/inspec_exec_test.rb

@@ -962,8 +962,7 @@ Test Summary: 2 successful, 0 failures, 0 skipped\n"
   describe "when specifying the execution target" do
     let(:local_plat) do
       json = run_inspec_process("detect --format json", {}).stdout
-      # .slice is available in ruby 2.5+
-      JSON.parse(json).select { |k, v| %w{name release}.include? k }
+      JSON.parse(json).slice("name", "release")
     end
     let(:run_result) { run_inspec_process("exec " + File.join(profile_path, "simple-metadata") + " " + cli_args, json: true) }
     let(:seen_platform) { run_result; @json["platform"].select { |k, v| %w{name release target_id}.include? k } }