Merge branch 'dm-meer-blauw-op-straat' into 'master'

Enable (and disable) more RuboCops

See merge request !9432

Gemfile

@@ -301,10 +301,10 @@ group :development, :test do
   gem 'spring-commands-rspec',    '~> 1.0.4'
   gem 'spring-commands-spinach',  '~> 1.1.0'
 
-  gem 'rubocop', '~> 0.46.0', require: false
-  gem 'rubocop-rspec', '~> 1.9.1', require: false
+  gem 'rubocop', '~> 0.47.1', require: false
+  gem 'rubocop-rspec', '~> 1.12.0', require: false
   gem 'scss_lint', '~> 0.47.0', require: false
-  gem 'haml_lint', '~> 0.18.2', require: false
+  gem 'haml_lint', '~> 0.21.0', require: false
   gem 'simplecov', '0.12.0', require: false
   gem 'flay', '~> 2.6.1', require: false
   gem 'bundler-audit', '~> 0.5.0', require: false

Gemfile.lock

@@ -319,10 +319,10 @@ GEM
       multi_json (>= 1.3.2)
     haml (4.0.7)
       tilt
-    haml_lint (0.18.2)
+    haml_lint (0.21.0)
       haml (~> 4.0)
-      rake (>= 10, < 12)
-      rubocop (>= 0.36.0)
+      rake (>= 10, < 13)
+      rubocop (>= 0.47.0)
       sysexits (~> 1.1)
     hamlit (2.6.1)
       temple (~> 0.7.6)
@@ -501,7 +501,7 @@ GEM
     os (0.9.6)
     paranoia (2.2.0)
       activerecord (>= 4.0, < 5.1)
-    parser (2.3.1.4)
+    parser (2.4.0.0)
       ast (~> 2.2)
     pg (0.18.4)
     poltergeist (1.9.0)
@@ -642,13 +642,13 @@ GEM
       pg
       rails
       sqlite3
-    rubocop (0.46.0)
-      parser (>= 2.3.1.1, < 3.0)
+    rubocop (0.47.1)
+      parser (>= 2.3.3.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
-    rubocop-rspec (1.9.1)
+    rubocop-rspec (1.12.0)
       rubocop (>= 0.42.0)
     ruby-fogbugz (0.2.1)
       crack (~> 0.4)
@@ -759,7 +759,7 @@ GEM
       rack (>= 1, < 3)
     thor (0.19.4)
     thread_safe (0.3.5)
-    tilt (2.0.5)
+    tilt (2.0.6)
     timecop (0.8.1)
     timfel-krb5-auth (0.8.3)
     tool (0.2.3)
@@ -776,7 +776,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.2)
-    unicode-display_width (1.1.1)
+    unicode-display_width (1.1.3)
     unicorn (5.1.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)
@@ -888,7 +888,7 @@ DEPENDENCIES
   google-api-client (~> 0.8.6)
   grape (~> 0.18.0)
   grape-entity (~> 0.6.0)
-  haml_lint (~> 0.18.2)
+  haml_lint (~> 0.21.0)
   hamlit (~> 2.6.1)
   health_check (~> 2.2.0)
   hipchat (~> 1.5.0)
@@ -963,8 +963,8 @@ DEPENDENCIES
   rspec-rails (~> 3.5.0)
   rspec-retry (~> 0.4.5)
   rspec_profiling (~> 0.0.5)
-  rubocop (~> 0.46.0)
-  rubocop-rspec (~> 1.9.1)
+  rubocop (~> 0.47.1)
+  rubocop-rspec (~> 1.12.0)
   ruby-fogbugz (~> 0.2.1)
   ruby-prof (~> 0.16.2)
   rugged (~> 0.24.0)

app/controllers/admin/system_info_controller.rb

@@ -3,7 +3,7 @@ class Admin::SystemInfoController < Admin::ApplicationController
     'nobrowse',
     'read-only',
     'ro'
-  ]
+  ].freeze
 
   EXCLUDED_MOUNT_TYPES = [
     'autofs',
@@ -27,7 +27,7 @@ class Admin::SystemInfoController < Admin::ApplicationController
     'tmpfs',
     'tracefs',
     'vfat'
-  ]
+  ].freeze
 
   def show
     @cpus = Vmstat.cpu rescue nil

app/controllers/application_controller.rb

@@ -181,7 +181,7 @@ class ApplicationController < ActionController::Base
   end
 
   def gitlab_ldap_access(&block)
-    Gitlab::LDAP::Access.open { |access| block.call(access) }
+    Gitlab::LDAP::Access.open { |access| yield(access) }
   end
 
   # JSON for infinite scroll via Pager object

app/controllers/concerns/creates_commit.rb

@@ -101,13 +101,14 @@ module CreatesCommit
 
   # TODO: We should really clean this up
   def set_commit_variables
-    if can?(current_user, :push_code, @project)
-      # Edit file in this project
-      @mr_source_project = @project
-    else
-      # Merge request from fork to this project
-      @mr_source_project = current_user.fork_of(@project)
-    end
+    @mr_source_project =
+      if can?(current_user, :push_code, @project)
+        # Edit file in this project
+        @project
+      else
+        # Merge request from fork to this project
+        current_user.fork_of(@project)
+      end
 
     # Merge request to this project
     @mr_target_project = @project

app/controllers/concerns/service_params.rb

@@ -59,10 +59,10 @@ module ServiceParams
     :user_key,
     :username,
     :webhook
-  ]
+  ].freeze
 
   # Parameters to ignore if no value is specified
-  FILTER_BLANK_PARAMS = [:password]
+  FILTER_BLANK_PARAMS = [:password].freeze
 
   def service_params
     dynamic_params = @service.event_channel_names + @service.event_names

app/controllers/concerns/spammable_actions.rb

@@ -27,7 +27,7 @@ module SpammableActions
 
       render :verify
     else
-      fallback.call
+      yield
     end
   end
 

app/controllers/jwt_controller.rb

@@ -5,7 +5,7 @@ class JwtController < ApplicationController
 
   SERVICES = {
     Auth::ContainerRegistryAuthenticationService::AUDIENCE => Auth::ContainerRegistryAuthenticationService,
-  }
+  }.freeze
 
   def auth
     service = SERVICES[params[:service]]
@@ -39,7 +39,8 @@ class JwtController < ApplicationController
           message: "HTTP Basic: Access denied\n" \
                    "You have 2FA enabled, please use a personal access token for Git over HTTP.\n" \
                    "You can generate one at #{profile_personal_access_tokens_url}" }
-      ] }, status: 401
+      ]
+    }, status: 401
   end
 
   def render_unauthorized
@@ -47,7 +48,8 @@ class JwtController < ApplicationController
       errors: [
         { code: 'UNAUTHORIZED',
           message: 'HTTP Basic: Access denied' }
-      ] }, status: 401
+      ]
+    }, status: 401
   end
 
   def auth_params

app/controllers/profiles/two_factor_auths_controller.rb

@@ -80,7 +80,7 @@ class Profiles::TwoFactorAuthsController < Profiles::ApplicationController
 
   def build_qr_code
     uri = current_user.otp_provisioning_uri(account_string, issuer: issuer_host)
-    RQRCode::render_qrcode(uri, :svg, level: :m, unit: 3)
+    RQRCode.render_qrcode(uri, :svg, level: :m, unit: 3)
   end
 
   def account_string

app/controllers/projects/git_http_client_controller.rb

@@ -76,11 +76,12 @@ class Projects::GitHttpClientController < Projects::ApplicationController
     return @project if defined?(@project)
 
     project_id, _ = project_id_with_suffix
-    if project_id.blank?
-      @project = nil
-    else
-      @project = Project.find_by_full_path("#{params[:namespace_id]}/#{project_id}")
-    end
+    @project =
+      if project_id.blank?
+        nil
+      else
+        Project.find_by_full_path("#{params[:namespace_id]}/#{project_id}")
+      end
   end
 
   # This method returns two values so that we can parse

app/controllers/projects/merge_requests_controller.rb

@@ -381,14 +381,15 @@ class Projects::MergeRequestsController < Projects::ApplicationController
   end
 
   def merge_widget_refresh
-    if merge_request.merge_when_build_succeeds
-      @status = :merge_when_build_succeeds
-    else
-      # Only MRs that can be merged end in this action
-      # MR can be already picked up for merge / merged already or can be waiting for worker to be picked up
-      # in last case it does not have any special status. Possible error is handled inside widget js function
-      @status = :success
-    end
+    @status =
+      if merge_request.merge_when_build_succeeds
+        :merge_when_build_succeeds
+      else
+        # Only MRs that can be merged end in this action
+        # MR can be already picked up for merge / merged already or can be waiting for worker to be picked up
+        # in last case it does not have any special status. Possible error is handled inside widget js function
+        :success
+      end
 
     render 'merge'
   end

app/controllers/sessions_controller.rb

@@ -15,11 +15,12 @@ class SessionsController < Devise::SessionsController
 
   def new
     set_minimum_password_length
-    if Gitlab.config.ldap.enabled
-      @ldap_servers = Gitlab::LDAP::Config.servers
-    else
-      @ldap_servers = []
-    end
+    @ldap_servers =
+      if Gitlab.config.ldap.enabled
+        Gitlab::LDAP::Config.servers
+      else
+        []
+      end
 
     super
   end

app/controllers/snippets_controller.rb

@@ -28,8 +28,9 @@ class SnippetsController < ApplicationController
       @snippets = SnippetsFinder.new.execute(current_user, {
         filter: :by_user,
         user: @user,
-        scope: params[:scope] }).
-      page(params[:page])
+        scope: params[:scope]
+      })
+      .page(params[:page])
 
       render 'index'
     else

app/finders/issuable_finder.rb

@@ -19,7 +19,7 @@
 #     iids: integer[]
 #
 class IssuableFinder
-  NONE = '0'
+  NONE = '0'.freeze
 
   attr_accessor :current_user, :params
 

app/finders/notes_finder.rb

@@ -28,11 +28,12 @@ class NotesFinder
   private
 
   def init_collection
-    if @params[:target_id]
-      @notes = on_target(@params[:target_type], @params[:target_id])
-    else
-      @notes = notes_of_any_type
-    end
+    @notes =
+      if @params[:target_id]
+        on_target(@params[:target_type], @params[:target_id])
+      else
+        notes_of_any_type
+      end
   end
 
   def notes_of_any_type

app/finders/todos_finder.rb

@@ -13,7 +13,7 @@
 #
 
 class TodosFinder
-  NONE = '0'
+  NONE = '0'.freeze
 
   attr_accessor :current_user, :params
 
@@ -99,7 +99,7 @@ class TodosFinder
   end
 
   def type?
-    type.present? && ['Issue', 'MergeRequest'].include?(type)
+    type.present? && %w(Issue MergeRequest).include?(type)
   end
 
   def type

app/helpers/application_helper.rb

@@ -69,11 +69,12 @@ module ApplicationHelper
   end
 
   def avatar_icon(user_or_email = nil, size = nil, scale = 2)
-    if user_or_email.is_a?(User)
-      user = user_or_email
-    else
-      user = User.find_by_any_email(user_or_email.try(:downcase))
-    end
+    user =
+      if user_or_email.is_a?(User)
+        user_or_email
+      else
+        User.find_by_any_email(user_or_email.try(:downcase))
+      end
 
     if user
       user.avatar_url(size) || default_avatar

app/helpers/application_settings_helper.rb

 module ApplicationSettingsHelper
-  def gravatar_enabled?
-    current_application_settings.gravatar_enabled?
-  end
-
-  def signup_enabled?
-    current_application_settings.signup_enabled?
-  end
-
-  def signin_enabled?
-    current_application_settings.signin_enabled?
-  end
+  delegate  :gravatar_enabled?,
+            :signup_enabled?,
+            :signin_enabled?,
+            :akismet_enabled?,
+            :koding_enabled?,
+            to: :current_application_settings
 
   def user_oauth_applications?
     current_application_settings.user_oauth_applications
   end
 
-  def askimet_enabled?
-    current_application_settings.akismet_enabled?
-  end
-
-  def koding_enabled?
-    current_application_settings.koding_enabled?
-  end
-
   def allowed_protocols_present?
     current_application_settings.enabled_git_access_protocol.present?
   end

app/helpers/blob_helper.rb

@@ -153,16 +153,17 @@ module BlobHelper
     # Because we are opionated we set the cache headers ourselves.
     response.cache_control[:public] = @project.public?
 
-    if @ref && @commit && @ref == @commit.id
-      # This is a link to a commit by its commit SHA. That means that the blob
-      # is immutable. The only reason to invalidate the cache is if the commit
-      # was deleted or if the user lost access to the repository.
-      response.cache_control[:max_age] = Blob::CACHE_TIME_IMMUTABLE
-    else
-      # A branch or tag points at this blob. That means that the expected blob
-      # value may change over time.
-      response.cache_control[:max_age] = Blob::CACHE_TIME
-    end
+    response.cache_control[:max_age] =
+      if @ref && @commit && @ref == @commit.id
+        # This is a link to a commit by its commit SHA. That means that the blob
+        # is immutable. The only reason to invalidate the cache is if the commit
+        # was deleted or if the user lost access to the repository.
+        Blob::CACHE_TIME_IMMUTABLE
+      else
+        # A branch or tag points at this blob. That means that the expected blob
+        # value may change over time.
+        Blob::CACHE_TIME
+      end
 
     response.etag = @blob.id
     !stale

app/helpers/emails_helper.rb

@@ -24,7 +24,7 @@ module EmailsHelper
 
   def action_title(url)
     return unless url
-    ["merge_requests", "issues", "commit"].each do |action|
+    %w(merge_requests issues commit).each do |action|
       if url.split("/").include?(action)
         return "View #{action.humanize.singularize}"
       end

app/helpers/issuables_helper.rb

@@ -23,7 +23,7 @@ module IssuablesHelper
   def issuable_json_path(issuable)
     project = issuable.project
 
-    if issuable.kind_of?(MergeRequest)
+    if issuable.is_a?(MergeRequest)
       namespace_project_merge_request_path(project.namespace, project, issuable.iid, :json)
     else
       namespace_project_issue_path(project.namespace, project, issuable.iid, :json)
@@ -198,7 +198,7 @@ module IssuablesHelper
     @counts[issuable_type][state]
   end
 
-  IRRELEVANT_PARAMS_FOR_CACHE_KEY = %i[utf8 sort page]
+  IRRELEVANT_PARAMS_FOR_CACHE_KEY = %i[utf8 sort page].freeze
   private_constant :IRRELEVANT_PARAMS_FOR_CACHE_KEY
 
   def issuables_state_counter_cache_key(issuable_type, state)

app/helpers/javascript_helper.rb

@@ -2,6 +2,7 @@ module JavascriptHelper
   def page_specific_javascript_tag(js)
     javascript_include_tag asset_path(js)
   end
+
   def page_specific_javascript_bundle_tag(js)
     javascript_include_tag(*webpack_asset_paths(js))
   end

app/helpers/namespaces_helper.rb

@@ -33,7 +33,7 @@ module NamespacesHelper
   end
 
   def namespace_icon(namespace, size = 40)
-    if namespace.kind_of?(Group)
+    if namespace.is_a?(Group)
       group_icon(namespace)
     else
       avatar_icon(namespace.owner.email, size)

app/helpers/sorting_helper.rb

@@ -30,7 +30,7 @@ module SortingHelper
     }
 
     if current_controller?('admin/projects')
-      options.merge!(sort_value_largest_repo => sort_title_largest_repo)
+      options[sort_value_largest_repo] = sort_title_largest_repo
     end
 
     options

app/helpers/submodule_helper.rb

@@ -37,8 +37,8 @@ module SubmoduleHelper
   end
 
   def self_url?(url, namespace, project)
-    return true if url == [ Gitlab.config.gitlab.url, '/', namespace, '/',
-                            project, '.git' ].join('')
+    return true if url == [Gitlab.config.gitlab.url, '/', namespace, '/',
+                           project, '.git'].join('')
     url == gitlab_shell.url_to_repo([namespace, '/', project].join(''))
   end
 
@@ -48,8 +48,8 @@ module SubmoduleHelper
   end
 
   def standard_links(host, namespace, project, commit)
-    base = [ 'https://', host, '/', namespace, '/', project ].join('')
-    [base, [ base, '/tree/', commit ].join('')]
+    base = ['https://', host, '/', namespace, '/', project].join('')
+    [base, [base, '/tree/', commit].join('')]
   end
 
   def relative_self_links(url, commit)

app/helpers/tab_helper.rb

@@ -99,7 +99,7 @@ module TabHelper
       return 'active'
     end
 
-    if ['services', 'hooks', 'deploy_keys', 'protected_branches'].include? controller.controller_name
+    if %w(services hooks deploy_keys protected_branches).include? controller.controller_name
       "active"
     end
   end

app/helpers/todos_helper.rb

@@ -150,6 +150,6 @@ module TodosHelper
   private
 
   def show_todo_state?(todo)
-    (todo.target.is_a?(MergeRequest) || todo.target.is_a?(Issue)) && ['closed', 'merged'].include?(todo.target.state)
+    (todo.target.is_a?(MergeRequest) || todo.target.is_a?(Issue)) && %w(closed merged).include?(todo.target.state)
   end
 end

app/helpers/visibility_level_helper.rb

@@ -89,13 +89,9 @@ module VisibilityLevelHelper
     current_application_settings.restricted_visibility_levels || []
   end
 
-  def default_project_visibility
-    current_application_settings.default_project_visibility
-  end
-
-  def default_group_visibility
-    current_application_settings.default_group_visibility
-  end
+  delegate  :default_project_visibility,
+            :default_group_visibility,
+            to: :current_application_settings
 
   def skip_level?(form_model, level)
     form_model.is_a?(Project) && !form_model.visibility_level_allowed?(level)

app/mailers/repository_check_mailer.rb

 class RepositoryCheckMailer < BaseMailer
   def notify(failed_count)
-    if failed_count == 1
-      @message = "One project failed its last repository check"
-    else
-      @message = "#{failed_count} projects failed their last repository check"
-    end
+    @message =
+      if failed_count == 1
+        "One project failed its last repository check"
+      else
+        "#{failed_count} projects failed their last repository check"
+      end
 
     mail(
       to: User.admins.pluck(:email),

app/models/application_setting.rb

@@ -5,7 +5,7 @@ class ApplicationSetting < ActiveRecord::Base
   add_authentication_token_field :runners_registration_token
   add_authentication_token_field :health_check_access_token
 
-  CACHE_KEY = 'application_setting.last'
+  CACHE_KEY = 'application_setting.last'.freeze
   DOMAIN_LIST_SEPARATOR = %r{\s*[,;]\s*     # comma or semicolon, optionally surrounded by whitespace
                             |               # or
                             \s              # any whitespace character

app/models/ci/build.rb

@@ -22,8 +22,10 @@ module Ci
     serialize :options
     serialize :yaml_variables, Gitlab::Serializer::Ci::Variables
 
+    delegate :name, to: :project, prefix: true
+
     validates :coverage, numericality: true, allow_blank: true
-    validates_presence_of :ref
+    validates :ref, presence: true
 
     scope :unstarted, ->() { where(runner_id: nil) }
     scope :ignore_failures, ->() { where(allow_failure: false) }
@@ -233,10 +235,6 @@ module Ci
       gl_project_id
     end
 
-    def project_name
-      project.name
-    end
-
     def repo_url
       auth = "gitlab-ci-token:#{ensure_token!}@"
       project.http_url_to_repo.sub(/^https?:\/\//) do |prefix|
@@ -257,7 +255,7 @@ module Ci
       return unless regex
 
       matches = text.scan(Regexp.new(regex)).last
-      matches = matches.last if matches.kind_of?(Array)
+      matches = matches.last if matches.is_a?(Array)
       coverage = matches.gsub(/\d+(\.\d+)?/).first
 
       if coverage.present?

app/models/ci/pipeline.rb

@@ -14,9 +14,11 @@ module Ci
     has_many :builds, foreign_key: :commit_id
     has_many :trigger_requests, dependent: :destroy, foreign_key: :commit_id
 
-    validates_presence_of :sha, unless: :importing?
-    validates_presence_of :ref, unless: :importing?
-    validates_presence_of :status, unless: :importing?
+    delegate :id, to: :project, prefix: true
+
+    validates :sha, presence: { unless: :importing? }
+    validates :ref, presence: { unless: :importing? }
+    validates :status, presence: { unless: :importing? }
     validate :valid_commit_sha, unless: :importing?
 
     after_create :keep_around_commits, unless: :importing?
@@ -153,10 +155,6 @@ module Ci
       builds.latest.with_artifacts_not_expired.includes(project: [:namespace])
     end
 
-    def project_id
-      project.id
-    end
-
     # For now the only user who participates is the user who triggered
     def participants(_current_user = nil)
       Array(user)

app/models/ci/runner.rb

@@ -4,8 +4,8 @@ module Ci
 
     RUNNER_QUEUE_EXPIRY_TIME = 60.minutes
     LAST_CONTACT_TIME = 1.hour.ago
-    AVAILABLE_SCOPES = %w[specific shared active paused online]
-    FORM_EDITABLE = %i[description tag_list active run_untagged locked]
+    AVAILABLE_SCOPES = %w[specific shared active paused online].freeze
+    FORM_EDITABLE = %i[description tag_list active run_untagged locked].freeze
 
     has_many :builds
     has_many :runner_projects, dependent: :destroy

app/models/ci/runner_project.rb

@@ -5,6 +5,6 @@ module Ci
     belongs_to :runner
     belongs_to :project, foreign_key: :gl_project_id
 
-    validates_uniqueness_of :runner_id, scope: :gl_project_id
+    validates :runner_id, uniqueness: { scope: :gl_project_id }
   end
 end

app/models/ci/trigger.rb

@@ -7,8 +7,8 @@ module Ci
     belongs_to :project, foreign_key: :gl_project_id
     has_many :trigger_requests, dependent: :destroy
 
-    validates_presence_of :token
-    validates_uniqueness_of :token
+    validates :token, presence: true
+    validates :token, uniqueness: true
 
     before_validation :set_default_values
 

app/models/commit.rb

@@ -22,12 +22,12 @@ class Commit
   DIFF_HARD_LIMIT_LINES = 50000
 
   # The SHA can be between 7 and 40 hex characters.
-  COMMIT_SHA_PATTERN = '\h{7,40}'
+  COMMIT_SHA_PATTERN = '\h{7,40}'.freeze
 
   class << self
     def decorate(commits, project)
       commits.map do |commit|
-        if commit.kind_of?(Commit)
+        if commit.is_a?(Commit)
           commit
         else
           self.new(commit, project)
@@ -105,7 +105,7 @@ class Commit
   end
 
   def diff_line_count
-    @diff_line_count ||= Commit::diff_line_count(raw_diffs)
+    @diff_line_count ||= Commit.diff_line_count(raw_diffs)
     @diff_line_count
   end
 
@@ -122,11 +122,12 @@ class Commit
   def full_title
     return @full_title if @full_title
 
-    if safe_message.blank?
-      @full_title = no_commit_message
-    else
-      @full_title = safe_message.split("\n", 2).first
-    end
+    @full_title =
+      if safe_message.blank?
+        no_commit_message
+      else
+        safe_message.split("\n", 2).first
+      end
   end
 
   # Returns the commits description

app/models/commit_status.rb

@@ -10,10 +10,11 @@ class CommitStatus < ActiveRecord::Base
   belongs_to :user
 
   delegate :commit, to: :pipeline
+  delegate :sha, :short_sha, to: :pipeline
 
   validates :pipeline, presence: true, unless: :importing?
 
-  validates_presence_of :name
+  validates :name, presence: true
 
   alias_attribute :author, :user
 
@@ -102,8 +103,6 @@ class CommitStatus < ActiveRecord::Base
     end
   end
 
-  delegate :sha, :short_sha, to: :pipeline
-
   def before_sha
     pipeline.before_sha || Gitlab::Git::BLANK_SHA
   end

app/models/concerns/cache_markdown_field.rb

@@ -11,14 +11,15 @@ module CacheMarkdownField
   # Knows about the relationship between markdown and html field names, and
   # stores the rendering contexts for the latter
   class FieldData
-    extend Forwardable
-
     def initialize
       @data = {}
     end
 
-    def_delegators :@data, :[], :[]=
-    def_delegator :@data, :keys, :markdown_fields
+    delegate :[], :[]=, to: :@data
+
+    def markdown_fields
+      @data.keys
+    end
 
     def html_field(markdown_field)
       "#{markdown_field}_html"
@@ -45,7 +46,7 @@ module CacheMarkdownField
     Project
     Release
     Snippet
-  ]
+  ].freeze
 
   def self.caching_classes
     CACHING_CLASSES.map(&:constantize)

app/models/concerns/case_sensitivity.rb

@@ -13,11 +13,12 @@ module CaseSensitivity
       params.each do |key, value|
         column = ActiveRecord::Base.connection.quote_table_name(key)
 
-        if cast_lower
-          condition = "LOWER(#{column}) = LOWER(:value)"
-        else
-          condition = "#{column} = :value"
-        end
+        condition =
+          if cast_lower
+            "LOWER(#{column}) = LOWER(:value)"
+          else
+            "#{column} = :value"
+          end
 
         criteria = criteria.where(condition, value: value)
       end

app/models/concerns/has_status.rb

 module HasStatus
   extend ActiveSupport::Concern
 
-  DEFAULT_STATUS = 'created'
-  AVAILABLE_STATUSES = %w[created pending running success failed canceled skipped]
-  STARTED_STATUSES = %w[running success failed skipped]
-  ACTIVE_STATUSES = %w[pending running]
-  COMPLETED_STATUSES = %w[success failed canceled skipped]
-  ORDERED_STATUSES = %w[failed pending running canceled success skipped]
+  DEFAULT_STATUS = 'created'.freeze
+  AVAILABLE_STATUSES = %w[created pending running success failed canceled skipped].freeze
+  STARTED_STATUSES = %w[running success failed skipped].freeze
+  ACTIVE_STATUSES = %w[pending running].freeze
+  COMPLETED_STATUSES = %w[success failed canceled skipped].freeze
+  ORDERED_STATUSES = %w[failed pending running canceled success skipped].freeze
 
   class_methods do
     def status_sql

app/models/concerns/issuable.rb

@@ -46,6 +46,17 @@ module Issuable
 
     has_one :metrics
 
+    delegate :name,
+             :email,
+             to: :author,
+             prefix: true
+
+    delegate :name,
+             :email,
+             to: :assignee,
+             allow_nil: true,
+             prefix: true
+
     validates :author, presence: true
     validates :title, presence: true, length: { maximum: 255 }
 
@@ -68,21 +79,10 @@ module Issuable
 
     scope :without_label, -> { joins("LEFT OUTER JOIN label_links ON label_links.target_type = '#{name}' AND label_links.target_id = #{table_name}.id").where(label_links: { id: nil }) }
     scope :join_project, -> { joins(:project) }
-    scope :inc_notes_with_associations, -> { includes(notes: [ :project, :author, :award_emoji ]) }
+    scope :inc_notes_with_associations, -> { includes(notes: [:project, :author, :award_emoji]) }
     scope :references_project, -> { references(:project) }
     scope :non_archived, -> { join_project.where(projects: { archived: false }) }
 
-    delegate :name,
-             :email,
-             to: :author,
-             prefix: true
-
-    delegate :name,
-             :email,
-             to: :assignee,
-             allow_nil: true,
-             prefix: true
-
     attr_mentionable :title, pipeline: :single_line
     attr_mentionable :description
 
@@ -182,7 +182,7 @@ module Issuable
     def grouping_columns(sort)
       grouping_columns = [arel_table[:id]]
 
-      if ["milestone_due_desc", "milestone_due_asc"].include?(sort)
+      if %w(milestone_due_desc milestone_due_asc).include?(sort)
         milestone_table = Milestone.arel_table
         grouping_columns << milestone_table[:id]
         grouping_columns << milestone_table[:due_date]
@@ -235,7 +235,7 @@ module Issuable
       # DEPRECATED
       repository: project.hook_attrs.slice(:name, :url, :description, :homepage)
     }
-    hook_data.merge!(assignee: assignee.hook_attrs) if assignee
+    hook_data[:assignee] = assignee.hook_attrs if assignee
 
     hook_data
   end

app/models/concerns/reactive_service.rb

@@ -5,6 +5,6 @@ module ReactiveService
     include ReactiveCaching
 
     # Default cache key: class name + project_id
-    self.reactive_cache_key = ->(service) { [ service.class.model_name.singular, service.project_id ] }
+    self.reactive_cache_key = ->(service) { [service.class.model_name.singular, service.project_id] }
   end
 end

app/models/concerns/sortable.rb

@@ -46,11 +46,12 @@ module Sortable
         where("label_links.target_id = #{target_column}").
         reorder(nil)
 
-      if target_type_column
-        query = query.where("label_links.target_type = #{target_type_column}")
-      else
-        query = query.where(label_links: { target_type: target_type })
-      end
+      query =
+        if target_type_column
+          query.where("label_links.target_type = #{target_type_column}")
+        else
+          query.where(label_links: { target_type: target_type })
+        end
 
       query = query.where.not(title: excluded_labels) if excluded_labels.present?
 

app/models/diff_note.rb

@@ -8,7 +8,7 @@ class DiffNote < Note
   validates :position, presence: true
   validates :diff_line, presence: true
   validates :line_code, presence: true, line_code: true
-  validates :noteable_type, inclusion: { in: ['Commit', 'MergeRequest'] }
+  validates :noteable_type, inclusion: { in: %w(Commit MergeRequest) }
   validates :resolved_by, presence: true, if: :resolved?
   validate :positions_complete
   validate :verify_supported

app/models/event.rb

@@ -47,7 +47,7 @@ class Event < ActiveRecord::Base
     def contributions
       where("action = ? OR (target_type IN (?) AND action IN (?)) OR (target_type = ? AND action = ?)",
             Event::PUSHED,
-            ["MergeRequest", "Issue"], [Event::CREATED, Event::CLOSED, Event::MERGED],
+            %w(MergeRequest Issue), [Event::CREATED, Event::CLOSED, Event::MERGED],
             "Note", Event::COMMENTED)
     end
 

app/models/external_issue.rb

@@ -43,7 +43,7 @@ class ExternalIssue
   end
 
   def reference_link_text(from_project = nil)
-    return "##{id}" if /^\d+$/.match(id)
+    return "##{id}" if id =~ /^\d+$/
 
     id
   end

app/models/label.rb

@@ -11,7 +11,7 @@ class Label < ActiveRecord::Base
 
   cache_markdown_field :description, pipeline: :single_line
 
-  DEFAULT_COLOR = '#428BCA'
+  DEFAULT_COLOR = '#428BCA'.freeze
 
   default_value_for :color, DEFAULT_COLOR
 

app/models/member.rb

@@ -10,6 +10,8 @@ class Member < ActiveRecord::Base
   belongs_to :user
   belongs_to :source, polymorphic: true
 
+  delegate :name, :username, :email, to: :user, prefix: true
+
   validates :user, presence: true, unless: :invite?
   validates :source, presence: true
   validates :user_id, uniqueness: { scope: [:source_type, :source_id],
@@ -73,8 +75,6 @@ class Member < ActiveRecord::Base
   after_destroy :post_destroy_hook, unless: :pending?
   after_commit :refresh_member_authorized_projects
 
-  delegate :name, :username, :email, to: :user, prefix: true
-
   default_value_for :notification_level, NotificationSetting.levels[:global]
 
   class << self

app/models/members/group_member.rb

 class GroupMember < Member
-  SOURCE_TYPE = 'Namespace'
+  SOURCE_TYPE = 'Namespace'.freeze
 
   belongs_to :group, foreign_key: 'source_id'
 
   # Make sure group member points only to group as it source
   default_value_for :source_type, SOURCE_TYPE
-  validates_format_of :source_type, with: /\ANamespace\z/
+  validates :source_type, format: { with: /\ANamespace\z/ }
   default_scope { where(source_type: SOURCE_TYPE) }
 
   def self.access_level_roles

app/models/members/project_member.rb

 class ProjectMember < Member
-  SOURCE_TYPE = 'Project'
+  SOURCE_TYPE = 'Project'.freeze
 
   include Gitlab::ShellAdapter
 
@@ -7,7 +7,7 @@ class ProjectMember < Member
 
   # Make sure project member points only to project as it source
   default_value_for :source_type, SOURCE_TYPE
-  validates_format_of :source_type, with: /\AProject\z/
+  validates :source_type, format: { with: /\AProject\z/ }
   validates :access_level, inclusion: { in: Gitlab::Access.values }
   default_scope { where(source_type: SOURCE_TYPE) }
 

app/models/merge_request.rb

@@ -531,7 +531,7 @@ class MergeRequest < ActiveRecord::Base
     }
 
     if diff_head_commit
-      attrs.merge!(last_commit: diff_head_commit.hook_attrs)
+      attrs[:last_commit] = diff_head_commit.hook_attrs
     end
 
     attributes.merge!(attrs)

app/models/merge_request_diff.rb

@@ -7,7 +7,7 @@ class MergeRequestDiff < ActiveRecord::Base
   COMMITS_SAFE_SIZE = 100
 
   # Valid types of serialized diffs allowed by Gitlab::Git::Diff
-  VALID_CLASSES = [Hash, Rugged::Patch, Rugged::Diff::Delta]
+  VALID_CLASSES = [Hash, Rugged::Patch, Rugged::Diff::Delta].freeze
 
   belongs_to :merge_request
 

app/models/network/graph.rb

@@ -188,11 +188,12 @@ module Network
       end
 
       # and mark it as reserved
-      if parent_time.nil?
-        min_time = leaves.first.time
-      else
-        min_time = parent_time + 1
-      end
+      min_time =
+        if parent_time.nil?
+          leaves.first.time
+        else
+          parent_time + 1
+        end
 
       max_time = leaves.last.time
       leaves.last.parents(@map).each do |parent|

app/models/note.rb

@@ -72,7 +72,7 @@ class Note < ActiveRecord::Base
   scope :inc_author, ->{ includes(:author) }
   scope :inc_relations_for_view, ->{ includes(:project, :author, :updated_by, :resolved_by, :award_emoji) }
 
-  scope :diff_notes, ->{ where(type: ['LegacyDiffNote', 'DiffNote']) }
+  scope :diff_notes, ->{ where(type: %w(LegacyDiffNote DiffNote)) }
   scope :non_diff_notes, ->{ where(type: ['Note', nil]) }
 
   scope :with_associations, -> do

app/models/notification_setting.rb

@@ -35,11 +35,11 @@ class NotificationSetting < ActiveRecord::Base
     :merge_merge_request,
     :failed_pipeline,
     :success_pipeline
-  ]
+  ].freeze
 
   EXCLUDED_WATCHER_EVENTS = [
     :success_pipeline
-  ]
+  ].freeze
 
   store :events, accessors: EMAIL_EVENTS, coder: JSON
 

app/models/pages_domain.rb

@@ -2,7 +2,7 @@ class PagesDomain < ActiveRecord::Base
   belongs_to :project
 
   validates :domain, hostname: true
-  validates_uniqueness_of :domain, case_sensitive: false
+  validates :domain, uniqueness: { case_sensitive: false }
   validates :certificate, certificate: true, allow_nil: true, allow_blank: true
   validates :key, certificate_key: true, allow_nil: true, allow_blank: true
 

app/models/project.rb

@@ -22,7 +22,7 @@ class Project < ActiveRecord::Base
   class BoardLimitExceeded < StandardError; end
 
   NUMBER_OF_PERMITTED_BOARDS = 1
-  UNKNOWN_IMPORT_URL = 'http://unknown.git'
+  UNKNOWN_IMPORT_URL = 'http://unknown.git'.freeze
 
   cache_markdown_field :description, pipeline: :description
 
@@ -172,9 +172,11 @@ class Project < ActiveRecord::Base
   accepts_nested_attributes_for :project_feature
 
   delegate :name, to: :owner, allow_nil: true, prefix: true
+  delegate :count, to: :forks, prefix: true
   delegate :members, to: :team, prefix: true
   delegate :add_user, to: :team
   delegate :add_guest, :add_reporter, :add_developer, :add_master, to: :team
+  delegate :empty_repo?, to: :repository
 
   # Validations
   validates :creator, presence: true, on: :create
@@ -191,8 +193,8 @@ class Project < ActiveRecord::Base
     format: { with: Gitlab::Regex.project_path_regex,
               message: Gitlab::Regex.project_path_regex_message }
   validates :namespace, presence: true
-  validates_uniqueness_of :name, scope: :namespace_id
-  validates_uniqueness_of :path, scope: :namespace_id
+  validates :name, uniqueness: { scope: :namespace_id }
+  validates :path, uniqueness: { scope: :namespace_id }
   validates :import_url, addressable_url: true, if: :external_import?
   validates :star_count, numericality: { greater_than_or_equal_to: 0 }
   validate :check_limit, on: :create
@@ -453,13 +455,14 @@ class Project < ActiveRecord::Base
   end
 
   def add_import_job
-    if forked?
-      job_id = RepositoryForkWorker.perform_async(id, forked_from_project.repository_storage_path,
-                                                  forked_from_project.path_with_namespace,
-                                                  self.namespace.full_path)
-    else
-      job_id = RepositoryImportWorker.perform_async(self.id)
-    end
+    job_id =
+      if forked?
+        RepositoryForkWorker.perform_async(id, forked_from_project.repository_storage_path,
+          forked_from_project.path_with_namespace,
+          self.namespace.full_path)
+      else
+        RepositoryImportWorker.perform_async(self.id)
+      end
 
     if job_id
       Rails.logger.info "Import job started for #{path_with_namespace} with job ID #{job_id}"
@@ -837,10 +840,6 @@ class Project < ActiveRecord::Base
     false
   end
 
-  def empty_repo?
-    repository.empty_repo?
-  end
-
   def repo
     repository.raw
   end
@@ -1028,10 +1027,6 @@ class Project < ActiveRecord::Base
     forked? && project == forked_from_project
   end
 
-  def forks_count
-    forks.count
-  end
-
   def origin_merge_requests
     merge_requests.where(source_project_id: self.id)
   end

app/models/project_feature.rb

@@ -18,7 +18,7 @@ class ProjectFeature < ActiveRecord::Base
   PRIVATE  = 10
   ENABLED  = 20
 
-  FEATURES = %i(issues merge_requests wiki snippets builds repository)
+  FEATURES = %i(issues merge_requests wiki snippets builds repository).freeze
 
   class << self
     def access_level_attribute(feature)

app/models/project_services/buildkite_service.rb

@@ -3,7 +3,7 @@ require "addressable/uri"
 class BuildkiteService < CiService
   include ReactiveService
 
-  ENDPOINT = "https://buildkite.com"
+  ENDPOINT = "https://buildkite.com".freeze
 
   prop_accessor :project_url, :token
   boolean_accessor :enable_ssl_verification

app/models/project_services/chat_message/issue_message.rb

@@ -51,7 +51,8 @@ module ChatMessage
         title: issue_title,
         title_link: issue_url,
         text: format(description),
-        color: "#C95823" }]
+        color: "#C95823"
+      }]
     end
 
     def project_link

app/models/project_services/drone_ci_service.rb

@@ -39,7 +39,7 @@ class DroneCiService < CiService
   def commit_status_path(sha, ref)
     url = [drone_url,
            "gitlab/#{project.full_path}/commits/#{sha}",
-           "?branch=#{URI::encode(ref.to_s)}&access_token=#{token}"]
+           "?branch=#{URI.encode(ref.to_s)}&access_token=#{token}"]
 
     URI.join(*url).to_s
   end
@@ -74,7 +74,7 @@ class DroneCiService < CiService
   def build_page(sha, ref)
     url = [drone_url,
            "gitlab/#{project.full_path}/redirect/commits/#{sha}",
-           "?branch=#{URI::encode(ref.to_s)}"]
+           "?branch=#{URI.encode(ref.to_s)}"]
 
     URI.join(*url).to_s
   end
@@ -114,7 +114,7 @@ class DroneCiService < CiService
   end
 
   def merge_request_valid?(data)
-    ['opened', 'reopened'].include?(data[:object_attributes][:state]) &&
+    %w(opened reopened).include?(data[:object_attributes][:state]) &&
       data[:object_attributes][:merge_status] == 'unchecked'
   end
 end

app/models/project_services/hipchat_service.rb

@@ -6,7 +6,7 @@ class HipchatService < Service
     a b i strong em br img pre code
     table th tr td caption colgroup col thead tbody tfoot
     ul ol li dl dt dd
-  ]
+  ].freeze
 
   prop_accessor :token, :room, :server, :color, :api_version
   boolean_accessor :notify_only_broken_builds, :notify
@@ -36,7 +36,7 @@ class HipchatService < Service
       { type: 'text', name: 'token',     placeholder: 'Room token' },
       { type: 'text', name: 'room',      placeholder: 'Room name or ID' },
       { type: 'checkbox', name: 'notify' },
-      { type: 'select', name: 'color', choices: ['yellow', 'red', 'green', 'purple', 'gray', 'random'] },
+      { type: 'select', name: 'color', choices: %w(yellow red green purple gray random) },
       { type: 'text', name: 'api_version',
         placeholder: 'Leave blank for default (v2)' },
       { type: 'text', name: 'server',

app/models/project_services/irker_service.rb

@@ -33,7 +33,8 @@ class IrkerService < Service
   end
 
   def settings
-    { server_host: server_host.present? ? server_host : 'localhost',
+    {
+      server_host: server_host.present? ? server_host : 'localhost',
       server_port: server_port.present? ? server_port : 6659
     }
   end

app/models/project_services/kubernetes_service.rb

@@ -3,7 +3,7 @@ class KubernetesService < DeploymentService
   include Gitlab::Kubernetes
   include ReactiveCaching
 
-  self.reactive_cache_key = ->(service) { [ service.class.model_name.singular, service.project_id ] }
+  self.reactive_cache_key = ->(service) { [service.class.model_name.singular, service.project_id] }
 
   # Namespace defaults to the project path, but can be overridden in case that
   # is an invalid or inappropriate name
@@ -62,23 +62,19 @@ class KubernetesService < DeploymentService
         { type: 'text',
           name: 'namespace',
           title: 'Kubernetes namespace',
-          placeholder: 'Kubernetes namespace',
-        },
+          placeholder: 'Kubernetes namespace' },
         { type: 'text',
           name: 'api_url',
           title: 'API URL',
-          placeholder: 'Kubernetes API URL, like https://kube.example.com/',
-        },
+          placeholder: 'Kubernetes API URL, like https://kube.example.com/' },
         { type: 'text',
           name: 'token',
           title: 'Service token',
-          placeholder: 'Service token',
-        },
+          placeholder: 'Service token' },
         { type: 'textarea',
           name: 'ca_pem',
           title: 'Custom CA bundle',
-          placeholder: 'Certificate Authority bundle (PEM format)',
-        },
+          placeholder: 'Certificate Authority bundle (PEM format)' },
     ]
   end
 
@@ -167,7 +163,7 @@ class KubernetesService < DeploymentService
     url = URI.parse(api_url)
     prefix = url.path.sub(%r{/+\z}, '')
 
-    url.path = [ prefix, *parts ].join("/")
+    url.path = [prefix, *parts].join("/")
 
     url.to_s
   end

app/models/project_services/pivotaltracker_service.rb

 class PivotaltrackerService < Service
   include HTTParty
 
-  API_ENDPOINT = 'https://www.pivotaltracker.com/services/v5/source_commits'
+  API_ENDPOINT = 'https://www.pivotaltracker.com/services/v5/source_commits'.freeze
 
   prop_accessor :token, :restrict_to_branch
   validates :token, presence: true, if: :activated?

app/models/project_services/pushover_service.rb

@@ -29,25 +29,24 @@ class PushoverService < Service
           ['Normal Priority', 0],
           ['High Priority', 1]
         ],
-        default_choice: 0
-      },
+        default_choice: 0 },
       { type: 'select', name: 'sound', choices:
         [
           ['Device default sound', nil],
           ['Pushover (default)', 'pushover'],
-          ['Bike', 'bike'],
-          ['Bugle', 'bugle'],
+          %w(Bike bike),
+          %w(Bugle bugle),
           ['Cash Register', 'cashregister'],
-          ['Classical', 'classical'],
-          ['Cosmic', 'cosmic'],
-          ['Falling', 'falling'],
-          ['Gamelan', 'gamelan'],
-          ['Incoming', 'incoming'],
-          ['Intermission', 'intermission'],
-          ['Magic', 'magic'],
-          ['Mechanical', 'mechanical'],
+          %w(Classical classical),
+          %w(Cosmic cosmic),
+          %w(Falling falling),
+          %w(Gamelan gamelan),
+          %w(Incoming incoming),
+          %w(Intermission intermission),
+          %w(Magic magic),
+          %w(Mechanical mechanical),
           ['Piano Bar', 'pianobar'],
-          ['Siren', 'siren'],
+          %w(Siren siren),
           ['Space Alarm', 'spacealarm'],
           ['Tug Boat', 'tugboat'],
           ['Alien Alarm (long)', 'alien'],
@@ -56,8 +55,7 @@ class PushoverService < Service
           ['Pushover Echo (long)', 'echo'],
           ['Up Down (long)', 'updown'],
           ['None (silent)', 'none']
-        ]
-      },
+        ] },
     ]
   end
 
@@ -72,13 +70,14 @@ class PushoverService < Service
     before = data[:before]
     after = data[:after]
 
-    if Gitlab::Git.blank_ref?(before)
-      message = "#{data[:user_name]} pushed new branch \"#{ref}\"."
-    elsif Gitlab::Git.blank_ref?(after)
-      message = "#{data[:user_name]} deleted branch \"#{ref}\"."
-    else
-      message = "#{data[:user_name]} push to branch \"#{ref}\"."
-    end
+    message =
+      if Gitlab::Git.blank_ref?(before)
+        "#{data[:user_name]} pushed new branch \"#{ref}\"."
+      elsif Gitlab::Git.blank_ref?(after)
+        "#{data[:user_name]} deleted branch \"#{ref}\"."
+      else
+        "#{data[:user_name]} push to branch \"#{ref}\"."
+      end
 
     if data[:total_commits_count] > 0
       message << "\nTotal commits count: #{data[:total_commits_count]}"
@@ -97,7 +96,7 @@ class PushoverService < Service
 
     # Sound parameter MUST NOT be sent to API if not selected
     if sound
-      pushover_data.merge!(sound: sound)
+      pushover_data[:sound] = sound
     end
 
     PushoverService.post('/messages.json', body: pushover_data)

app/models/project_statistics.rb

@@ -4,7 +4,7 @@ class ProjectStatistics < ActiveRecord::Base
 
   before_save :update_storage_size
 
-  STORAGE_COLUMNS = [:repository_size, :lfs_objects_size, :build_artifacts_size]
+  STORAGE_COLUMNS = [:repository_size, :lfs_objects_size, :build_artifacts_size].freeze
   STATISTICS_COLUMNS = [:commit_count] + STORAGE_COLUMNS
 
   def total_repository_size

app/models/project_wiki.rb

@@ -5,7 +5,7 @@ class ProjectWiki
     'Markdown' => :markdown,
     'RDoc'     => :rdoc,
     'AsciiDoc' => :asciidoc
-  } unless defined?(MARKUPS)
+  }.freeze unless defined?(MARKUPS)
 
   class CouldNotCreateWikiError < StandardError; end
 
@@ -19,6 +19,9 @@ class ProjectWiki
     @user = user
   end
 
+  delegate :empty?, to: :pages
+  delegate :repository_storage_path, to: :project
+
   def path
     @project.path + '.wiki'
   end
@@ -60,10 +63,6 @@ class ProjectWiki
     !!repository.exists?
   end
 
-  def empty?
-    pages.empty?
-  end
-
   # Returns an Array of Gitlab WikiPage instances or an
   # empty Array if this Wiki has no pages.
   def pages
@@ -160,10 +159,6 @@ class ProjectWiki
     }
   end
 
-  def repository_storage_path
-    project.repository_storage_path
-  end
-
   private
 
   def init_repo(path_with_namespace)

app/models/protected_branch.rb

@@ -8,8 +8,8 @@ class ProtectedBranch < ActiveRecord::Base
   has_many :merge_access_levels, dependent: :destroy
   has_many :push_access_levels, dependent: :destroy
 
-  validates_length_of :merge_access_levels, is: 1, message: "are restricted to a single instance per protected branch."
-  validates_length_of :push_access_levels, is: 1, message: "are restricted to a single instance per protected branch."
+  validates :merge_access_levels, length: { is: 1, message: "are restricted to a single instance per protected branch." }
+  validates :push_access_levels, length: { is: 1, message: "are restricted to a single instance per protected branch." }
 
   accepts_nested_attributes_for :push_access_levels
   accepts_nested_attributes_for :merge_access_levels

app/models/repository.rb

@@ -18,7 +18,7 @@ class Repository
   CACHED_METHODS = %i(size commit_count readme version contribution_guide
                       changelog license_blob license_key gitignore koding_yml
                       gitlab_ci_yml branch_names tag_names branch_count
-                      tag_count avatar exists? empty? root_ref)
+                      tag_count avatar exists? empty? root_ref).freeze
 
   # Certain method caches should be refreshed when certain types of files are
   # changed. This Hash maps file types (as returned by Gitlab::FileDetector) to
@@ -33,7 +33,7 @@ class Repository
     koding: :koding_yml,
     gitlab_ci: :gitlab_ci_yml,
     avatar: :avatar
-  }
+  }.freeze
 
   # Wraps around the given method and caches its output in Redis and an instance
   # variable.
@@ -487,9 +487,7 @@ class Repository
   end
   cache_method :exists?
 
-  def empty?
-    raw_repository.empty?
-  end
+  delegate :empty?, to: :raw_repository
   cache_method :empty?
 
   # The size of this repository in megabytes.
@@ -508,9 +506,7 @@ class Repository
   end
   cache_method :branch_names, fallback: []
 
-  def tag_names
-    raw_repository.tag_names
-  end
+  delegate :tag_names, to: :raw_repository
   cache_method :tag_names, fallback: []
 
   def branch_count
@@ -892,7 +888,7 @@ class Repository
 
   def get_committer_and_author(user, email: nil, name: nil)
     committer = user_to_committer(user)
-    author = Gitlab::Git::committer_hash(email: email, name: name) || committer
+    author = Gitlab::Git.committer_hash(email: email, name: name) || committer
 
     {
       author: author,

app/models/todo.rb

@@ -17,7 +17,7 @@ class Todo < ActiveRecord::Base
     APPROVAL_REQUIRED => :approval_required,
     UNMERGEABLE => :unmergeable,
     DIRECTLY_ADDRESSED => :directly_addressed
-  }
+  }.freeze
 
   belongs_to :author, class_name: "User"
   belongs_to :note

app/models/user.rb

@@ -104,7 +104,7 @@ class User < ActiveRecord::Base
   #
   # Note: devise :validatable above adds validations for :email and :password
   validates :name, presence: true
-  validates_confirmation_of :email
+  validates :email, confirmation: true
   validates :notification_email, presence: true
   validates :notification_email, email: true, if: ->(user) { user.notification_email != user.email }
   validates :public_email, presence: true, uniqueness: true, email: true, allow_blank: true
@@ -580,8 +580,8 @@ class User < ActiveRecord::Base
 
       if project.repository.branch_exists?(event.branch_name)
         merge_requests = MergeRequest.where("created_at >= ?", event.created_at).
-            where(source_project_id: project.id,
-                  source_branch: event.branch_name)
+          where(source_project_id: project.id,
+                source_branch: event.branch_name)
         merge_requests.empty?
       end
     end

app/policies/base_policy.rb

@@ -6,9 +6,7 @@ class BasePolicy
       @cannot_set = cannot_set
     end
 
-    def size
-      to_set.size
-    end
+    delegate :size, to: :to_set
 
     def self.empty
       new(Set.new, Set.new)

app/services/auth/container_registry_authentication_service.rb

@@ -2,7 +2,7 @@ module Auth
   class ContainerRegistryAuthenticationService < BaseService
     include Gitlab::CurrentSettings
 
-    AUDIENCE = 'container_registry'
+    AUDIENCE = 'container_registry'.freeze
 
     def execute(authentication_abilities:)
       @authentication_abilities = authentication_abilities

app/services/base_service.rb

@@ -28,9 +28,7 @@ class BaseService
     SystemHooksService.new
   end
 
-  def repository
-    project.repository
-  end
+  delegate :repository, to: :project
 
   # Add an error to the specified model for restricted visibility levels
   def deny_visibility_level(model, denied_visibility_level = nil)

app/services/ci/create_pipeline_builds_service.rb

@@ -10,9 +10,7 @@ module Ci
       end
     end
 
-    def project
-      pipeline.project
-    end
+    delegate :project, to: :pipeline
 
     private
 

app/services/members/destroy_service.rb

@@ -4,7 +4,7 @@ module Members
 
     attr_accessor :source
 
-    ALLOWED_SCOPES = %i[members requesters all]
+    ALLOWED_SCOPES = %i[members requesters all].freeze
 
     def initialize(source, current_user, params = {})
       @source = source

app/services/notes/slash_commands_service.rb

@@ -3,7 +3,7 @@ module Notes
     UPDATE_SERVICES = {
       'Issue' => Issues::UpdateService,
       'MergeRequest' => MergeRequests::UpdateService
-    }
+    }.freeze
 
     def self.noteable_update_service(note)
       UPDATE_SERVICES[note.noteable_type]

app/services/projects/destroy_service.rb

@@ -4,7 +4,7 @@ module Projects
 
     class DestroyError < StandardError; end
 
-    DELETED_FLAG = '+deleted'
+    DELETED_FLAG = '+deleted'.freeze
 
     def async_execute
       project.transaction do

app/services/projects/download_service.rb

@@ -2,7 +2,7 @@ module Projects
   class DownloadService < BaseService
     WHITELIST = [
       /^[^.]+\.fogbugz.com$/
-    ]
+    ].freeze
 
     def initialize(project, url)
       @project, @url = project, url
@@ -25,7 +25,7 @@ module Projects
     end
 
     def http?(url)
-      url =~ /\A#{URI::regexp(['http', 'https'])}\z/
+      url =~ /\A#{URI.regexp(%w(http https))}\z/
     end
 
     def valid_domain?(url)

app/services/projects/update_pages_service.rb

@@ -2,7 +2,7 @@ module Projects
   class UpdatePagesService < BaseService
     BLOCK_SIZE = 32.kilobytes
     MAX_SIZE = 1.terabyte
-    SITE_PATH = 'public/'
+    SITE_PATH = 'public/'.freeze
 
     attr_reader :build
 

app/services/protected_branches/api_update_service.rb

@@ -15,16 +15,16 @@ module ProtectedBranches
 
         case @developers_can_push
         when true
-          params.merge!(push_access_levels_attributes: [{ access_level: Gitlab::Access::DEVELOPER }])
+          params[:push_access_levels_attributes] = [{ access_level: Gitlab::Access::DEVELOPER }]
         when false
-          params.merge!(push_access_levels_attributes: [{ access_level: Gitlab::Access::MASTER }])
+          params[:push_access_levels_attributes] = [{ access_level: Gitlab::Access::MASTER }]
         end
 
         case @developers_can_merge
         when true
-          params.merge!(merge_access_levels_attributes: [{ access_level: Gitlab::Access::DEVELOPER }])
+          params[:merge_access_levels_attributes] = [{ access_level: Gitlab::Access::DEVELOPER }]
         when false
-          params.merge!(merge_access_levels_attributes: [{ access_level: Gitlab::Access::MASTER }])
+          params[:merge_access_levels_attributes] = [{ access_level: Gitlab::Access::MASTER }]
         end
 
         service = ProtectedBranches::UpdateService.new(@project, @current_user, @params)

app/services/system_hooks_service.rb

@@ -33,9 +33,7 @@ class SystemHooksService
       data.merge!(project_data(model))
 
       if event == :rename || event == :transfer
-        data.merge!({
-          old_path_with_namespace: model.old_path_with_namespace
-        })
+        data[:old_path_with_namespace] = model.old_path_with_namespace
       end
 
       data

app/services/system_note_service.rb

@@ -356,10 +356,10 @@ module SystemNoteService
       note:    cross_reference_note_content(gfm_reference)
     }
 
-    if noteable.kind_of?(Commit)
+    if noteable.is_a?(Commit)
       note_options.merge!(noteable_type: 'Commit', commit_id: noteable.id)
     else
-      note_options.merge!(noteable: noteable)
+      note_options[:noteable] = noteable
     end
 
     if noteable.is_a?(ExternalIssue)
@@ -408,12 +408,13 @@ module SystemNoteService
     # Initial scope should be system notes of this noteable type
     notes = Note.system.where(noteable_type: noteable.class)
 
-    if noteable.is_a?(Commit)
-      # Commits have non-integer IDs, so they're stored in `commit_id`
-      notes = notes.where(commit_id: noteable.id)
-    else
-      notes = notes.where(noteable_id: noteable.id)
-    end
+    notes =
+      if noteable.is_a?(Commit)
+        # Commits have non-integer IDs, so they're stored in `commit_id`
+        notes.where(commit_id: noteable.id)
+      else
+        notes.where(noteable_id: noteable.id)
+      end
 
     notes_for_mentioner(mentioner, noteable, notes).exists?
   end

app/uploaders/uploader_helper.rb

 # Extra methods for uploader
 module UploaderHelper
-  IMAGE_EXT = %w[png jpg jpeg gif bmp tiff]
+  IMAGE_EXT = %w[png jpg jpeg gif bmp tiff].freeze
   # We recommend using the .mp4 format over .mov. Videos in .mov format can
   # still be used but you really need to make sure they are served with the
   # proper MIME type video/mp4 and not video/quicktime or your videos won't play
   # on IE >= 9.
   # http://archive.sublimevideo.info/20150912/docs.sublimevideo.net/troubleshooting.html
-  VIDEO_EXT = %w[mp4 m4v mov webm ogv]
+  VIDEO_EXT = %w[mp4 m4v mov webm ogv].freeze
   # These extension types can contain dangerous code and should only be embedded inline with
   # proper filtering. They should always be tagged as "Content-Disposition: attachment", not "inline".
-  DANGEROUS_EXT = %w[svg]
+  DANGEROUS_EXT = %w[svg].freeze
 
   def image?
     extension_match?(IMAGE_EXT)

app/validators/addressable_url_validator.rb

@@ -18,7 +18,7 @@
 #   end
 #
 class AddressableUrlValidator < ActiveModel::EachValidator
-  DEFAULT_OPTIONS = { protocols: %w(http https ssh git) }
+  DEFAULT_OPTIONS = { protocols: %w(http https ssh git) }.freeze
 
   def validate_each(record, attribute, value)
     unless valid_url?(value)

app/views/layouts/nav/_admin.html.haml

@@ -33,7 +33,7 @@
           Abuse Reports
           %span.badge.count= number_with_delimiter(AbuseReport.count(:all))
 
-    - if askimet_enabled?
+    - if akismet_enabled?
       = nav_link(controller: :spam_logs) do
         = link_to admin_spam_logs_path, title: "Spam Logs" do
           %span

app/workers/irker_worker.rb

@@ -120,8 +120,8 @@ class IrkerWorker
   end
 
   def compare_url(data, repo_path)
-    sha1 = Commit::truncate_sha(data['before'])
-    sha2 = Commit::truncate_sha(data['after'])
+    sha1 = Commit.truncate_sha(data['before'])
+    sha2 = Commit.truncate_sha(data['after'])
     compare_url = "#{Gitlab.config.gitlab.url}/#{repo_path}/compare"
     compare_url += "/#{sha1}...#{sha2}"
     colorize_url compare_url
@@ -129,7 +129,7 @@ class IrkerWorker
 
   def send_one_commit(project, hook_attrs, repo_name, branch)
     commit = commit_from_id project, hook_attrs['id']
-    sha = colorize_sha Commit::truncate_sha(hook_attrs['id'])
+    sha = colorize_sha Commit.truncate_sha(hook_attrs['id'])
     author = hook_attrs['author']['name']
     files = colorize_nb_files(files_count commit)
     title = commit.title

config/initializers/1_settings.rb

@@ -14,12 +14,15 @@ class Settings < Settingslogic
     end
 
     def build_gitlab_ci_url
-      if on_standard_port?(gitlab)
-        custom_port = nil
-      else
-        custom_port = ":#{gitlab.port}"
-      end
-      [ gitlab.protocol,
+      custom_port =
+        if on_standard_port?(gitlab)
+          nil
+        else
+          ":#{gitlab.port}"
+        end
+
+      [
+        gitlab.protocol,
         "://",
         gitlab.host,
         custom_port,
@@ -80,7 +83,9 @@ class Settings < Settingslogic
 
     def base_url(config)
       custom_port = on_standard_port?(config) ? nil : ":#{config.port}"
-      [ config.protocol,
+      
+      [
+        config.protocol,
         "://",
         config.host,
         custom_port
@@ -160,15 +165,16 @@ if github_settings
 
   github_settings["args"] ||= Settingslogic.new({})
 
-  if github_settings["url"].include?(github_default_url)
-    github_settings["args"]["client_options"] = OmniAuth::Strategies::GitHub.default_options[:client_options]
-  else
-    github_settings["args"]["client_options"] = {
-      "site"          => File.join(github_settings["url"], "api/v3"),
-      "authorize_url" => File.join(github_settings["url"], "login/oauth/authorize"),
-      "token_url"     => File.join(github_settings["url"], "login/oauth/access_token")
-    }
-  end
+  github_settings["args"]["client_options"] =
+    if github_settings["url"].include?(github_default_url)
+      OmniAuth::Strategies::GitHub.default_options[:client_options]
+    else
+      {
+        "site"          => File.join(github_settings["url"], "api/v3"),
+        "authorize_url" => File.join(github_settings["url"], "login/oauth/authorize"),
+        "token_url"     => File.join(github_settings["url"], "login/oauth/access_token")
+      }
+    end
 end
 
 Settings['shared'] ||= Settingslogic.new({})

config/initializers/devise.rb

@@ -24,7 +24,7 @@ Devise.setup do |config|
   # session. If you need permissions, you should implement that in a before filter.
   # You can also supply a hash where the value is a boolean determining whether
   # or not authentication should be aborted when the value is not present.
-  config.authentication_keys = [ :login ]
+  config.authentication_keys = [:login]
 
   # Configure parameters from the request object used for authentication. Each entry
   # given should be a request method and it will automatically be passed to the
@@ -36,12 +36,12 @@ Devise.setup do |config|
   # Configure which authentication keys should be case-insensitive.
   # These keys will be downcased upon creating or modifying a user and when used
   # to authenticate or find a user. Default is :email.
-  config.case_insensitive_keys = [ :email ]
+  config.case_insensitive_keys = [:email]
 
   # Configure which authentication keys should have whitespace stripped.
   # These keys will have whitespace before and after removed upon creating or
   # modifying a user and when used to authenticate or find a user. Default is :email.
-  config.strip_whitespace_keys = [ :email ]
+  config.strip_whitespace_keys = [:email]
 
   # Tell if authentication through request.params is enabled. True by default.
   # config.params_authenticatable = true
@@ -124,7 +124,7 @@ Devise.setup do |config|
   config.lock_strategy = :failed_attempts
 
   # Defines which key will be used when locking and unlocking an account
-  config.unlock_keys = [ :email ]
+  config.unlock_keys = [:email]
 
   # Defines which strategy will be used to unlock an account.
   # :email = Sends an unlock link to the user email

config/initializers/gollum.rb

 module Gollum
-  GIT_ADAPTER = "rugged"
+  GIT_ADAPTER = "rugged".freeze
 end
 require "gollum-lib"
 

config/initializers/health_check.rb

 HealthCheck.setup do |config|
-  config.standard_checks = ['database', 'migrations', 'cache']
-  config.full_checks = ['database', 'migrations', 'cache']
+  config.standard_checks = %w(database migrations cache)
+  config.full_checks = %w(database migrations cache)
 end

config/initializers/metrics.rb

@@ -20,13 +20,13 @@ def instrument_classes(instrumentation)
 
   # Path to search => prefix to strip from constant
   paths_to_instrument = {
-    ['app', 'finders']                    => ['app', 'finders'],
-    ['app', 'mailers', 'emails']          => ['app', 'mailers'],
-    ['app', 'services', '**']             => ['app', 'services'],
-    ['lib', 'gitlab', 'conflicts']        => ['lib'],
-    ['lib', 'gitlab', 'diff']             => ['lib'],
-    ['lib', 'gitlab', 'email', 'message'] => ['lib'],
-    ['lib', 'gitlab', 'checks']           => ['lib']
+    %w(app finders)               => %w(app finders),
+    %w(app mailers emails)        => %w(app mailers),
+    %w(app services **)           => %w(app services),
+    %w(lib gitlab conflicts)      => ['lib'],
+    %w(lib gitlab diff)           => ['lib'],
+    %w(lib gitlab email message)  => ['lib'],
+    %w(lib gitlab checks)         => ['lib']
   }
 
   paths_to_instrument.each do |(path, prefix)|

config/initializers/trusted_proxies.rb

@@ -21,4 +21,4 @@ gitlab_trusted_proxies = Array(Gitlab.config.gitlab.trusted_proxies).map do |pro
 end.compact
 
 Rails.application.config.action_dispatch.trusted_proxies = (
-  [ '127.0.0.1', '::1' ] + gitlab_trusted_proxies)
+  ['127.0.0.1', '::1'] + gitlab_trusted_proxies)

config/initializers/workhorse_multipart.rb

@@ -10,7 +10,7 @@ end
 #
 module Gitlab
   module StrongParameterScalars
-    GITLAB_PERMITTED_SCALAR_TYPES = [::UploadedFile]
+    GITLAB_PERMITTED_SCALAR_TYPES = [::UploadedFile].freeze
 
     def permitted_scalar?(value)
       super || GITLAB_PERMITTED_SCALAR_TYPES.any? { |type| value.is_a?(type) }

config/routes/wiki.rb

-WIKI_SLUG_ID = { id: /\S+/ } unless defined? WIKI_SLUG_ID
+WIKI_SLUG_ID = { id: /\S+/ }.freeze unless defined? WIKI_SLUG_ID
 
 scope(controller: :wikis) do
   scope(path: 'wikis', as: :wikis) do

db/migrate/20160610201627_migrate_users_notification_level.rb

@@ -2,6 +2,8 @@ class MigrateUsersNotificationLevel < ActiveRecord::Migration
   # Migrates only users who changed their default notification level :participating
   # creating a new record on notification settings table
 
+  DOWNTIME = false
+
   def up
     execute(%Q{
       INSERT INTO notification_settings

db/migrate/20160829114652_add_markdown_cache_columns.rb

@@ -26,7 +26,7 @@ class AddMarkdownCacheColumns < ActiveRecord::Migration
     projects: [:description],
     releases: [:description],
     snippets: [:title, :content],
-  }
+  }.freeze
 
   def change
     COLUMNS.each do |table, columns|