DEV: Apply Rubocop redundant return style

app/controllers/session_controller.rb

@@ -320,7 +320,7 @@ class SessionController < ApplicationController
 
   def invalid_security_key(user, err_message = nil)
     stage_webauthn_security_key_challenge(user) if !params[:security_key_credential]
-    return render json: failed_json.merge(
+    render json: failed_json.merge(
       error: err_message || I18n.t("login.invalid_security_key"),
       reason: "invalid_security_key",
       backup_enabled: user.backup_codes_enabled?
@@ -403,7 +403,7 @@ class SessionController < ApplicationController
       end
     end
 
-    return render json: { error: I18n.t('email_login.invalid_token') }
+    render json: { error: I18n.t('email_login.invalid_token') }
   rescue ::Webauthn::SecurityKeyError => err
     invalid_security_key(user, err.message)
   end

app/jobs/regular/bulk_invite.rb

@@ -84,7 +84,7 @@ module Jobs
         end
       end
 
-      return topic
+      topic
     end
 
     def send_invite(invite)

app/models/reviewable.rb

@@ -228,7 +228,7 @@ class Reviewable < ActiveRecord::Base
     priority ||= SiteSetting.reviewable_default_visibility
     id = Reviewable.priorities[priority.to_sym]
     return 0.0 if id.nil?
-    return PluginStore.get('reviewables', "priority_#{id}").to_f
+    PluginStore.get('reviewables', "priority_#{id}").to_f
   end
 
   def history

app/models/search_log.rb

@@ -104,7 +104,7 @@ class SearchLog < ActiveRecord::Base
         details << { x: Date.parse(record['date'].to_s), y: record['count'] }
       end
 
-    return {
+    {
       type: "search_log_term",
       title: I18n.t("search_logs.graph_title"),
       start_date: start_of(period),

app/models/user_api_key.rb

@@ -67,9 +67,9 @@ class UserApiKey < ActiveRecord::Base
   end
 
   def self.invalid_auth_redirect?(auth_redirect)
-    return SiteSetting.allowed_user_api_auth_redirects
-        .split('|')
-        .none? { |u| WildcardUrlChecker.check_url(u, auth_redirect) }
+    SiteSetting.allowed_user_api_auth_redirects
+      .split('|')
+      .none? { |u| WildcardUrlChecker.check_url(u, auth_redirect) }
   end
 end
 

app/serializers/reviewable_serializer.rb

@@ -115,7 +115,7 @@ class ReviewableSerializer < ApplicationSerializer
   end
 
   def topic_url
-    return object.topic&.url
+    object.topic&.url
   end
 
   def include_topic_url?

app/services/post_alerter.rb

@@ -249,7 +249,7 @@ class PostAlerter
   end
 
   def should_notify_edit?(notification, opts)
-    return notification.data_hash["display_username"] != opts[:display_username]
+    notification.data_hash["display_username"] != opts[:display_username]
   end
 
   def should_notify_like?(user, notification)

app/services/site_settings_task.rb

@@ -36,6 +36,6 @@ class SiteSettingsTask
         counts[:not_found] += 1
       end
     end
-    return log, counts
+    [log, counts]
   end
 end

app/services/themes_install_task.rb

@@ -25,7 +25,7 @@ class ThemesInstallTask
       end
     end
 
-    return log, counts
+    [log, counts]
   end
 
   attr_reader :url, :options

lib/auth/github_authenticator.rb

@@ -38,7 +38,7 @@ class Auth::GithubAuthenticator < Auth::Authenticator
 
     def valid?()
       @validator.validate_each(self, :email, @email)
-      return errors.blank?
+      errors.blank?
     end
 
   end

lib/cooked_post_processor.rb

@@ -437,7 +437,7 @@ class CookedPostProcessor
   def get_filename(upload, src)
     return File.basename(src) unless upload
     return upload.original_filename unless upload.original_filename =~ /^blob(\.png)?$/i
-    return I18n.t("upload.pasted_image_filename")
+    I18n.t("upload.pasted_image_filename")
   end
 
   def create_node(tag_name, klass)

lib/discourse_tagging.rb

@@ -370,7 +370,7 @@ module DiscourseTagging
       tag_names.uniq!
     end
 
-    return opts[:unlimited] ? tag_names : tag_names[0...SiteSetting.max_tags_per_topic]
+    opts[:unlimited] ? tag_names : tag_names[0...SiteSetting.max_tags_per_topic]
   end
 
   def self.add_or_create_tags_by_name(taggable, tag_names_arg, opts = {})

lib/file_store/s3_store.rb

@@ -55,7 +55,7 @@ module FileStore
       path, etag = @s3_helper.upload(file, path, options)
 
       # return the upload url and etag
-      return File.join(absolute_base_url, path), etag
+      [File.join(absolute_base_url, path), etag]
     end
 
     def remove_file(url, path)

lib/freedom_patches/active_record_attribute_methods.rb

@@ -14,7 +14,7 @@ module ActiveRecord
     module ClassMethods
       # this is for Rails 5
       def enforce_raw_sql_whitelist(*args)
-        return
+        nil
       end
 
       BLANK_ARRAY = [].freeze
@@ -23,7 +23,7 @@ module ActiveRecord
       def disallow_raw_sql!(args, permit: nil)
         # we may consider moving to https://github.com/rails/rails/pull/33330
         # once all frozen string hints are in place
-        return BLANK_ARRAY
+        BLANK_ARRAY
       end
     end
   end

lib/guardian.rb

@@ -120,7 +120,7 @@ class Guardian
   def can_see?(obj)
     if obj
       see_method = method_name_for :see, obj
-      return (see_method ? public_send(see_method, obj) : true)
+      (see_method ? public_send(see_method, obj) : true)
     end
   end
 
@@ -539,7 +539,7 @@ class Guardian
   def can_do?(action, obj)
     if obj && authenticated?
       action_method = method_name_for action, obj
-      return (action_method ? public_send(action_method, obj) : true)
+      (action_method ? public_send(action_method, obj) : true)
     else
       false
     end

lib/introduction_updater.rb

@@ -27,7 +27,7 @@ class IntroductionUpdater
   protected
 
   def summary_from_post(post)
-    return post ? post.raw.split("\n").first : nil
+    post ? post.raw.split("\n").first : nil
   end
 
   def find_welcome_post

lib/promotion.rb

@@ -103,7 +103,7 @@ class Promotion
     return false if (stat.time_read / 60) < SiteSetting.tl1_requires_time_spent_mins
     return false if ((Time.now - user.created_at) / 60) < SiteSetting.tl1_requires_time_spent_mins
 
-    return true
+    true
   end
 
   def self.tl3_met?(user)

lib/retrieve_title.rb

@@ -67,6 +67,6 @@ module RetrieveTitle
       title = extract_title(current)
       throw :done if title || max_size < current.length
     end
-    return title
+    title
   end
 end

lib/s3_helper.rb

@@ -47,7 +47,7 @@ class S3Helper
       end
     end
 
-    return path, etag.gsub('"', '')
+    [path, etag.gsub('"', '')]
   end
 
   def remove(s3_filename, copy_to_tombstone = false)

lib/unread.rb

@@ -27,7 +27,7 @@ class Unread
 
     new_posts = (highest_post_number - @topic_user.highest_seen_post_number)
     new_posts = 0 if new_posts < 0
-    return new_posts
+    new_posts
   end
 
   protected

script/bulk_import/base.rb

@@ -778,7 +778,7 @@ class BulkImport::Base
 
   def normalize_charset(text)
     return text if @encoding == Encoding::UTF_8
-    return text && text.encode(@encoding).force_encoding(Encoding::UTF_8)
+    text && text.encode(@encoding).force_encoding(Encoding::UTF_8)
   end
 
 end

script/import_scripts/discuz_x.rb

@@ -882,7 +882,7 @@ class ImportScripts::DiscuzX < ImportScripts::Base
       return nil
     end
 
-    return upload, real_filename
+    [upload, real_filename]
   end
 
   # find the uploaded file and real name from the db
@@ -938,12 +938,12 @@ class ImportScripts::DiscuzX < ImportScripts::Base
       return nil
     end
 
-    return upload, real_filename
+    [upload, real_filename]
   rescue Mysql2::Error => e
     puts "SQL Error"
     puts e.message
     puts sql
-    return nil
+    nil
   end
 
   def first_exists(*items)

script/import_scripts/disqus.rb

@@ -196,7 +196,7 @@ class DisqusSAX < Nokogiri::XML::SAX::Document
   end
 
   def inside?(*params)
-    return !params.find { |p| !@inside[p] }
+    !params.find { |p| !@inside[p] }
   end
 
   def normalize

script/import_scripts/friendsmegplus.rb

@@ -457,7 +457,7 @@ class ImportScripts::FMGP < ImportScripts::Base
     end
     # FIXME: import G+ "+1" as "like" if F+MG+E feature request implemented
 
-    return mapped
+    mapped
   end
 
   def parse_title(post, created_at)
@@ -524,7 +524,7 @@ class ImportScripts::FMGP < ImportScripts::Base
         words << fragment[1]
       end
     end
-    return words
+    words
   end
 
   def formatted_message(post)
@@ -588,10 +588,10 @@ class ImportScripts::FMGP < ImportScripts::Base
         return text
       end
     elsif fragment[0] == 1
-      return "\n"
+      "\n"
     elsif fragment[0] == 2
       urls_seen.add(fragment[2])
-      return formatted_link_text(fragment[2], fragment[1])
+      formatted_link_text(fragment[2], fragment[1])
     elsif fragment[0] == 3
       # reference to a user
       if @usermap.include?(fragment[2].to_s)
@@ -619,7 +619,7 @@ class ImportScripts::FMGP < ImportScripts::Base
       end
     elsif fragment[0] == 4
       # hashtag, the octothorpe is included
-      return fragment[1]
+      fragment[1]
     else
       raise RuntimeError.new("message code #{fragment[0]} not recognized!")
     end

script/import_scripts/lithium.rb

@@ -855,7 +855,7 @@ SQL
       return nil
     end
 
-    return upload, real_filename
+    [upload, real_filename]
   end
 
   def post_process_posts

script/import_scripts/mybb.rb

@@ -181,7 +181,7 @@ class ImportScripts::MyBB < ImportScripts::Base
     if count > 5
       puts "Warning: probably incorrect quote in post #{post_id}"
     end
-    return username
+    username
   end
 
   # Take an original post id and return the migrated topic id and post number for it

script/import_scripts/smf2.rb

@@ -244,7 +244,7 @@ class ImportScripts::Smf2 < ImportScripts::Base
     raise "Attachment for post #{post[:id]} failed: #{attachment[:filename]}" unless path.present?
     upload = create_upload(post[:user_id], path, attachment[:filename])
     raise "Attachment for post #{post[:id]} failed: #{upload.errors.full_messages.join(', ')}" unless upload.persisted?
-    return upload
+    upload
   rescue SystemCallError => err
     raise "Attachment for post #{post[:id]} failed: #{err.message}"
   end
@@ -280,7 +280,7 @@ class ImportScripts::Smf2 < ImportScripts::Base
     return __query(db, sql).to_a                       if opts[:as] == :array
     return __query(db, sql, as: :array).first[0]       if opts[:as] == :single
     return __query(db, sql, stream: true).each(&block) if block_given?
-    return __query(db, sql, stream: true)
+    __query(db, sql, stream: true)
   end
 
   def __query(db, sql, **opts)
@@ -345,7 +345,7 @@ class ImportScripts::Smf2 < ImportScripts::Base
       end
     end
 
-    return opts[:ignore_quotes] ? body : convert_quotes(body)
+    opts[:ignore_quotes] ? body : convert_quotes(body)
   end
 
   def get_upload_markdown(upload)

script/import_scripts/vbulletin5.rb

@@ -359,12 +359,12 @@ class ImportScripts::VBulletin < ImportScripts::Base
       return nil
     end
 
-    return upload, real_filename
+    [upload, real_filename]
   rescue Mysql2::Error => e
     puts "SQL Error"
     puts e.message
     puts sql
-    return nil
+    nil
   end
 
   def import_attachments

script/memstats.rb

@@ -85,7 +85,7 @@ def consume_mapping(map_lines, totals)
   Mapping::FIELDS.each do |field|
     totals[field] += m.public_send(field)
   end
-  return m
+  m
 end
 
 def create_memstats_not_available(totals)
@@ -136,7 +136,7 @@ def get_commandline(pid)
     loop { break if commandline.shift == "-jar" }
     return "[java] #{commandline.shift}"
   end
-  return commandline.join(' ')
+  commandline.join(' ')
 end
 
 if ARGV.include? '--yaml'

spec/models/theme_spec.rb

@@ -267,7 +267,7 @@ HTML
     def transpile(html)
       f = ThemeField.create!(target_id: Theme.targets[:mobile], theme_id: 1, name: "after_header", value: html)
       f.ensure_baked!
-      return f.value_baked, f.javascript_cache
+      [f.value_baked, f.javascript_cache]
     end
 
     it "transpiles ES6 code" do