Merge branch 'zj-drop-ruby-21-tests' into 'master'

Update Rubocop to Ruby 2.3

See merge request !8994

7 files changed, 19 insertions, 29 deletions

diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 9a4557524c4..74b358d8c40 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -116,31 +116,25 @@ class ApplicationSetting < ActiveRecord::Base
             numericality: { only_integer: true, greater_than_or_equal_to: 0 }
 
   validates_each :restricted_visibility_levels do |record, attr, value|
-    unless value.nil?
-      value.each do |level|
-        unless Gitlab::VisibilityLevel.options.has_value?(level)
-          record.errors.add(attr, "'#{level}' is not a valid visibility level")
-        end
+    value&.each do |level|
+      unless Gitlab::VisibilityLevel.options.has_value?(level)
+        record.errors.add(attr, "'#{level}' is not a valid visibility level")
       end
     end
   end
 
   validates_each :import_sources do |record, attr, value|
-    unless value.nil?
-      value.each do |source|
-        unless Gitlab::ImportSources.options.has_value?(source)
-          record.errors.add(attr, "'#{source}' is not a import source")
-        end
+    value&.each do |source|
+      unless Gitlab::ImportSources.options.has_value?(source)
+        record.errors.add(attr, "'#{source}' is not a import source")
       end
     end
   end
 
   validates_each :disabled_oauth_sign_in_sources do |record, attr, value|
-    unless value.nil?
-      value.each do |source|
-        unless Devise.omniauth_providers.include?(source.to_sym)
-          record.errors.add(attr, "'#{source}' is not an OAuth sign-in source")
-        end
+    value&.each do |source|
+      unless Devise.omniauth_providers.include?(source.to_sym)
+        record.errors.add(attr, "'#{source}' is not an OAuth sign-in source")
       end
     end
   end
@@ -230,11 +224,11 @@ class ApplicationSetting < ActiveRecord::Base
   end
 
   def domain_whitelist_raw
-    self.domain_whitelist.join("\n") unless self.domain_whitelist.nil?
+    self.domain_whitelist&.join("\n")
   end
 
   def domain_blacklist_raw
-    self.domain_blacklist.join("\n") unless self.domain_blacklist.nil?
+    self.domain_blacklist&.join("\n")
   end
 
   def domain_whitelist_raw=(values)
diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index 3517969eabc..d1872dd931d 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -95,8 +95,8 @@ module Issuable
     def update_assignee_cache_counts
       # make sure we flush the cache for both the old *and* new assignees(if they exist)
       previous_assignee = User.find_by_id(assignee_id_was) if assignee_id_was
-      previous_assignee.update_cache_counts if previous_assignee
-      assignee.update_cache_counts if assignee
+      previous_assignee&.update_cache_counts
+      assignee&.update_cache_counts
     end
 
     # We want to use optimistic lock for cases when only title or description are involved
diff --git a/app/models/concerns/milestoneish.rb b/app/models/concerns/milestoneish.rb
index e9450dd0c26..f449229864d 100644
--- a/app/models/concerns/milestoneish.rb
+++ b/app/models/concerns/milestoneish.rb
@@ -73,7 +73,7 @@ module Milestoneish
   def memoize_per_user(user, method_name)
     @memoized ||= {}
     @memoized[method_name] ||= {}
-    @memoized[method_name][user.try!(:id)] ||= yield
+    @memoized[method_name][user&.id] ||= yield
   end
 
   # override in a class that includes this module to get a faster query
diff --git a/app/models/group_milestone.rb b/app/models/group_milestone.rb
index 7b6db2634b7..86d38e5468b 100644
--- a/app/models/group_milestone.rb
+++ b/app/models/group_milestone.rb
@@ -9,7 +9,7 @@ class GroupMilestone < GlobalMilestone
 
   def self.build(group, projects, title)
     super(projects, title).tap do |milestone|
-      milestone.group = group if milestone
+      milestone&.group = group
     end
   end
 
diff --git a/app/models/project.rb b/app/models/project.rb
index c17bcedf7b2..aa408b4556e 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -469,7 +469,7 @@ class Project < ActiveRecord::Base
   def reset_cache_and_import_attrs
     ProjectCacheWorker.perform_async(self.id)
 
-    self.import_data.destroy if self.import_data
+    self.import_data&.destroy
   end
 
   def import_url=(value)
diff --git a/app/models/user.rb b/app/models/user.rb
index f9245cdb82a..867e61af56a 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -314,7 +314,7 @@ class User < ActiveRecord::Base
 
     def find_by_personal_access_token(token_string)
       personal_access_token = PersonalAccessToken.active.find_by_token(token_string) if token_string
-      personal_access_token.user if personal_access_token
+      personal_access_token&.user
     end
 
     # Returns a user for the given SSH key.
diff --git a/app/models/wiki_page.rb b/app/models/wiki_page.rb
index c3de278f5b7..e93d0eab6d8 100644
--- a/app/models/wiki_page.rb
+++ b/app/models/wiki_page.rb
@@ -69,16 +69,12 @@ class WikiPage
 
   # The raw content of this page.
   def content
-    @attributes[:content] ||= if @page
-                                @page.text_data
-                              end
+    @attributes[:content] ||= @page&.text_data
   end
 
   # The processed/formatted content of this page.
   def formatted_content
-    @attributes[:formatted_content] ||= if @page
-                                          @page.formatted_data
-                                        end
+    @attributes[:formatted_content] ||= @page&.formatted_data
   end
 
   # The markup format for the page.