(PUP-11993) Style/RedundantReturn

This commit enables the Style/RedundantReturn cop and fixes
538 autocorrectable offenses.

Author: AriaXLi

.rubocop_todo.yml

@@ -652,11 +652,6 @@ Style/OptionalBooleanParameter:
 Style/PreferredHashMethods:
   Enabled: false
 
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowMultipleReturnValues.
-Style/RedundantReturn:
-  Enabled: false
-
 # This cop supports safe auto-correction (--auto-correct).
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: implicit, explicit

lib/hiera/scope.rb

@@ -77,11 +77,11 @@ def compiler
 
     def find_hostclass(scope)
       if scope.source and scope.source.type == :hostclass
-        return scope.source.name.downcase
+        scope.source.name.downcase
       elsif scope.parent
-        return find_hostclass(scope.parent)
+        find_hostclass(scope.parent)
       else
-        return nil
+        nil
       end
     end
     private :find_hostclass

lib/hiera_puppet.rb

@@ -47,7 +47,7 @@ def parse_args(args)
     default  = args[1]
     override = args[2]
 
-    return [key, default, override]
+    [key, default, override]
   end
 
   def hiera

lib/puppet.rb

@@ -75,9 +75,9 @@ def self.replace_settings_object(new_settings)
   # @api public
   def self.[](param)
     if param == :debug
-      return Puppet::Util::Log.level == :debug
+      Puppet::Util::Log.level == :debug
     else
-      return @@settings[param]
+      @@settings[param]
     end
   end
 

lib/puppet/application.rb

@@ -254,14 +254,14 @@ def find(application_name)
         raise Puppet::Error, _("Unable to load application class '%{class_name}' from file 'puppet/application/%{application_name}.rb'") % { class_name: class_name, application_name: application_name }
       end
 
-      return clazz
+      clazz
     end
 
     # Given the fully qualified name of a class, attempt to get the class instance.
     # @param [String] class_name the fully qualified name of the class to try to load
     # @return [Class] the Class instance, or nil? if it could not be loaded.
     def try_load_class(class_name)
-      return const_defined?(class_name) ? const_get(class_name) : nil
+      const_defined?(class_name) ? const_get(class_name) : nil
     end
     private :try_load_class
 

lib/puppet/application/describe.rb

@@ -44,9 +44,9 @@ def scrub(text)
     # indent from every line.
     if text =~ /^(\s+)/
       indent = ::Regexp.last_match(1)
-      return text.gsub(/^#{indent}/, '')
+      text.gsub(/^#{indent}/, '')
     else
-      return text
+      text
     end
   end
 end

lib/puppet/application/doc.rb

@@ -122,7 +122,7 @@ def handle_unknown(opt, arg)
   end
 
   def run_command
-    return [:rdoc].include?(options[:mode]) ? send(options[:mode]) : other
+    [:rdoc].include?(options[:mode]) ? send(options[:mode]) : other
   end
 
   def rdoc

lib/puppet/application/face_base.rb

@@ -164,7 +164,7 @@ def find_global_settings_argument(item)
         pattern.match item and return object
       end
     end
-    return nil                  # nothing found.
+    nil                  # nothing found.
   end
 
   def find_application_argument(item)
@@ -181,7 +181,7 @@ def find_application_argument(item)
         }
       end
     end
-    return nil                  # not found
+    nil                  # not found
   end
 
   def setup

lib/puppet/application/ssl.rb

@@ -234,7 +234,7 @@ def download_cert(ssl_context)
     cert
   rescue Puppet::HTTP::ResponseError => e
     if e.response.code == 404
-      return nil
+      nil
     else
       raise Puppet::Error.new(_("Failed to download certificate: %{message}") % { message: e.message }, e)
     end

lib/puppet/configurer.rb

@@ -505,7 +505,7 @@ def run_internal(options)
       true
     rescue => detail
       Puppet.log_exception(detail, _("Failed to apply catalog: %{detail}") % { detail: detail })
-      return nil
+      nil
     ensure
       execute_postrun_command or return nil # rubocop:disable Lint/EnsureReturn
     end
@@ -675,12 +675,12 @@ def resubmit_facts
 
     puppet.put_facts(facts.name, facts: facts, environment: Puppet.lookup(:current_environment).name.to_s)
 
-    return true
+    true
   rescue => detail
     Puppet.log_exception(detail, _("Failed to submit facts: %{detail}") %
                                  { detail: detail })
 
-    return false
+    false
   end
 
   private
@@ -722,7 +722,7 @@ def retrieve_catalog_from_cache(query_options)
     result
   rescue => detail
     Puppet.log_exception(detail, _("Could not retrieve catalog from cache: %{detail}") % { detail: detail })
-    return nil
+    nil
   end
 
   def retrieve_new_catalog(facts, query_options)
@@ -744,7 +744,7 @@ def retrieve_new_catalog(facts, query_options)
     result
   rescue StandardError => detail
     Puppet.log_exception(detail, _("Could not retrieve catalog from remote server: %{detail}") % { detail: detail })
-    return nil
+    nil
   end
 
   def download_plugins(remote_environment_for_plugins)