Automatic merge of gitlab-org/gitlab master

.rubocop_todo.yml

@@ -818,14 +818,6 @@ Style/RescueModifier:
 Style/RescueStandardError:
   Enabled: false
 
-# Offense count: 4
-# Cop supports --auto-correct.
-Style/SelfAssignment:
-  Exclude:
-    - 'app/models/concerns/bulk_member_access_load.rb'
-    - 'app/serializers/base_serializer.rb'
-    - 'spec/support/import_export/configuration_helper.rb'
-
 # Offense count: 50
 # Cop supports --auto-correct.
 # Configuration parameters: AllowIfMethodIsEmpty.

app/assets/javascripts/integrations/edit/components/jira_issues_fields.vue

@@ -37,6 +37,11 @@ export default {
       required: false,
       default: null,
     },
+    gitlabIssuesEnabled: {
+      type: Boolean,
+      required: false,
+      default: true,
+    },
     upgradePlanPath: {
       type: String,
       required: false,
@@ -133,7 +138,7 @@ export default {
           :disabled="!enableJiraIssues"
         />
       </gl-form-group>
-      <p>
+      <p v-if="gitlabIssuesEnabled">
         <gl-sprintf
           :message="
             s__(

app/assets/javascripts/integrations/edit/index.js

@@ -34,6 +34,7 @@ function parseDatasetToProps(data) {
     enableComments,
     showJiraIssuesIntegration,
     enableJiraIssues,
+    gitlabIssuesEnabled,
   } = parseBooleanInData(booleanAttributes);
 
   return {
@@ -50,6 +51,7 @@ function parseDatasetToProps(data) {
       showJiraIssuesIntegration,
       initialEnableJiraIssues: enableJiraIssues,
       initialProjectKey: projectKey,
+      gitlabIssuesEnabled,
       upgradePlanPath,
       editProjectPath,
     },

app/assets/javascripts/issuables_list/components/issuable.vue

@@ -158,7 +158,7 @@ export default {
           value: this.issuable.merge_requests_count,
           title: __('Related merge requests'),
           dataTestId: 'merge-requests',
-          class: 'js-merge-requests icon-merge-request-unmerged',
+          class: 'js-merge-requests',
           icon: 'merge-request',
         },
         {

app/models/concerns/bulk_member_access_load.rb

@@ -22,7 +22,7 @@ module BulkMemberAccessLoad
       end
 
       # Look up only the IDs we need
-      resource_ids = resource_ids - access.keys
+      resource_ids -= access.keys
 
       return access if resource_ids.empty?
 

app/models/concerns/from_except.rb

+# frozen_string_literal: true
+
+module FromExcept
+  extend ActiveSupport::Concern
+
+  class_methods do
+    # Produces a query that uses a FROM to select data using an EXCEPT.
+    #
+    # Example:
+    #     groups = Group.from_except([group1.self_and_hierarchy, group2.self_and_hierarchy])
+    #
+    # This would produce the following SQL query:
+    #
+    #     SELECT *
+    #     FROM (
+    #       SELECT "namespaces". *
+    #       ...
+    #
+    #       EXCEPT
+    #
+    #       SELECT "namespaces". *
+    #       ...
+    #     ) groups;
+    #
+    # members - An Array of ActiveRecord::Relation objects to use in the except.
+    #
+    # remove_duplicates - A boolean indicating if duplicate entries should be
+    #                     removed. Defaults to true.
+    #
+    # alias_as - The alias to use for the sub query. Defaults to the name of the
+    #            table of the current model.
+    # rubocop: disable Gitlab/Except
+    extend FromSetOperator
+    define_set_operator Gitlab::SQL::Except
+    # rubocop: enable Gitlab/Except
+  end
+end

app/models/concerns/from_intersect.rb

+# frozen_string_literal: true
+
+module FromIntersect
+  extend ActiveSupport::Concern
+
+  class_methods do
+    # Produces a query that uses a FROM to select data using an INTERSECT.
+    #
+    # Example:
+    #     groups = Group.from_intersect([group1.self_and_hierarchy, group2.self_and_hierarchy])
+    #
+    # This would produce the following SQL query:
+    #
+    #     SELECT *
+    #     FROM (
+    #       SELECT "namespaces". *
+    #       ...
+    #
+    #       INTERSECT
+    #
+    #       SELECT "namespaces". *
+    #       ...
+    #     ) groups;
+    #
+    # members - An Array of ActiveRecord::Relation objects to use in the intersect.
+    #
+    # remove_duplicates - A boolean indicating if duplicate entries should be
+    #                     removed. Defaults to true.
+    #
+    # alias_as - The alias to use for the sub query. Defaults to the name of the
+    #            table of the current model.
+    # rubocop: disable Gitlab/Intersect
+    extend FromSetOperator
+    define_set_operator Gitlab::SQL::Intersect
+    # rubocop: enable Gitlab/Intersect
+  end
+end

app/models/concerns/from_set_operator.rb

+# frozen_string_literal: true
+
+module FromSetOperator
+  # Define a high level method to more easily work with the SQL set operations
+  # of UNION, INTERSECT, and EXCEPT as defined by Gitlab::SQL::Union,
+  # Gitlab::SQL::Intersect, and Gitlab::SQL::Except respectively.
+  def define_set_operator(operator)
+    method_name = 'from_' + operator.name.demodulize.downcase
+    method_name = method_name.to_sym
+
+    raise "Trying to redefine method '#{method(method_name)}'" if methods.include?(method_name)
+
+    define_method(method_name) do |members, remove_duplicates: true, alias_as: table_name|
+      operator_sql = operator.new(members, remove_duplicates: remove_duplicates).to_sql
+
+      from(Arel.sql("(#{operator_sql}) #{alias_as}"))
+    end
+  end
+end

app/models/concerns/from_union.rb

@@ -35,13 +35,29 @@ module FromUnion
     # alias_as - The alias to use for the sub query. Defaults to the name of the
     #            table of the current model.
     # rubocop: disable Gitlab/Union
+    extend FromSetOperator
+    define_set_operator Gitlab::SQL::Union
+
+    alias_method :from_union_set_operator, :from_union
     def from_union(members, remove_duplicates: true, alias_as: table_name)
+      if Feature.enabled?(:sql_set_operators)
+        from_union_set_operator(members, remove_duplicates: remove_duplicates, alias_as: alias_as)
+      else
+        # The original from_union method.
+        standard_from_union(members, remove_duplicates: remove_duplicates, alias_as: alias_as)
+      end
+    end
+
+    private
+
+    def standard_from_union(members, remove_duplicates: true, alias_as: table_name)
       union = Gitlab::SQL::Union
         .new(members, remove_duplicates: remove_duplicates)
         .to_sql
 
       from(Arel.sql("(#{union}) #{alias_as}"))
     end
+
     # rubocop: enable Gitlab/Union
   end
 end

app/serializers/base_serializer.rb

@@ -9,7 +9,7 @@ class BaseSerializer
   end
 
   def represent(resource, opts = {}, entity_class = nil)
-    entity_class = entity_class || self.class.entity_class
+    entity_class ||= self.class.entity_class
 
     entity_class
       .represent(resource, opts.merge(request: @request))

changelogs/unreleased/205578-add-creator-id-to-packages.yml

+---
+title: Adds creator_id field to packages_packages table
+merge_request: 40562
+author:
+type: other

changelogs/unreleased/self-assign-cop.yml

+---
+title: Fix Style/SelfAssignment cop
+merge_request: 41079
+author: Rajendra Kadam
+type: fixed

config/feature_flags/development/sql-set-operators.yml

+---
+name: sql-set-operators
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/39786
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/39786
+group: group::access
+type: development
+default_enabled: false

db/migrate/20200827005322_add_creator_id_to_packages.rb

+# frozen_string_literal: true
+
+class AddCreatorIdToPackages < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  def change
+    add_column(:packages_packages, :creator_id, :integer)
+  end
+end

db/migrate/20200830201204_add_index_to_package_creator.rb

+# frozen_string_literal: true
+
+class AddIndexToPackageCreator < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  INDEX_NAME = 'index_packages_packages_on_creator_id'
+
+  def up
+    add_concurrent_index :packages_packages, :creator_id, name: INDEX_NAME
+    add_concurrent_foreign_key(:packages_packages, :users, column: :creator_id, on_delete: :nullify)
+  end
+
+  def down
+    remove_foreign_key_if_exists(:packages_packages, :users, column: :creator_id)
+    remove_concurrent_index_by_name(:packages_packages, INDEX_NAME)
+  end
+end

db/schema_migrations/20200827005322

+f4f1efcc93476a1d70add93e166f4c702ad7dfc97ad29c3455722fd98824498f
\ No newline at end of file

db/schema_migrations/20200830201204

+1e8dd4542b13009b748d352933a4a59fcabb31e916226fcbf87043396f94e09f
\ No newline at end of file

db/structure.sql

@@ -14025,7 +14025,8 @@ CREATE TABLE public.packages_packages (
     updated_at timestamp with time zone NOT NULL,
     name character varying NOT NULL,
     version character varying,
-    package_type smallint NOT NULL
+    package_type smallint NOT NULL,
+    creator_id integer
 );
 
 CREATE SEQUENCE public.packages_packages_id_seq
@@ -20457,6 +20458,8 @@ CREATE INDEX index_packages_package_files_on_file_store ON public.packages_packa
 
 CREATE INDEX index_packages_package_files_on_package_id_and_file_name ON public.packages_package_files USING btree (package_id, file_name);
 
+CREATE INDEX index_packages_packages_on_creator_id ON public.packages_packages USING btree (creator_id);
+
 CREATE INDEX index_packages_packages_on_name_trigram ON public.packages_packages USING gin (name public.gin_trgm_ops);
 
 CREATE INDEX index_packages_packages_on_project_id_and_created_at ON public.packages_packages USING btree (project_id, created_at);
@@ -22039,6 +22042,9 @@ ALTER TABLE ONLY public.ci_builds
 ALTER TABLE ONLY public.design_management_versions
     ADD CONSTRAINT fk_c1440b4896 FOREIGN KEY (author_id) REFERENCES public.users(id) ON DELETE SET NULL;
 
+ALTER TABLE ONLY public.packages_packages
+    ADD CONSTRAINT fk_c188f0dba4 FOREIGN KEY (creator_id) REFERENCES public.users(id) ON DELETE SET NULL;
+
 ALTER TABLE ONLY public.geo_event_log
     ADD CONSTRAINT fk_c1f241c70d FOREIGN KEY (upload_deleted_event_id) REFERENCES public.geo_upload_deleted_events(id) ON DELETE CASCADE;
 

doc/api/graphql/reference/gitlab_schema.graphql

@@ -17410,6 +17410,11 @@ type Vulnerability {
   """
   description: String
 
+  """
+  Timestamp of when the vulnerability was first detected
+  """
+  detectedAt: Time!
+
   """
   GraphQL ID of the vulnerability
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -51106,6 +51106,24 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "detectedAt",
+              "description": "Timestamp of when the vulnerability was first detected",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "Time",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "id",
               "description": "GraphQL ID of the vulnerability",

doc/api/graphql/reference/index.md

@@ -2580,6 +2580,7 @@ Represents a vulnerability.
 | Name  | Type  | Description |
 | ---   |  ---- | ----------  |
 | `description` | String | Description of the vulnerability |
+| `detectedAt` | Time! | Timestamp of when the vulnerability was first detected |
 | `id` | ID! | GraphQL ID of the vulnerability |
 | `identifiers` | VulnerabilityIdentifier! => Array | Identifiers of the vulnerability. |
 | `location` | VulnerabilityLocation | Location metadata for the vulnerability. Its fields depend on the type of security scan that found the vulnerability |

ee/app/graphql/types/vulnerability_type.rb

@@ -66,5 +66,9 @@ module Types
           description: 'The project on which the vulnerability was found',
           authorize: :read_project,
           resolve: -> (obj, args, context) { Gitlab::Graphql::Loaders::BatchModelLoader.new(Project, obj.project_id).find }
+
+    field :detected_at, Types::TimeType, null: false,
+          description: 'Timestamp of when the vulnerability was first detected',
+          method: :created_at
   end
 end

ee/app/helpers/ee/services_helper.rb

@@ -18,6 +18,7 @@ module EE
           show_jira_issues_integration: @project&.feature_available?(:jira_issues_integration).to_s,
           enable_jira_issues: integration.issues_enabled.to_s,
           project_key: integration.project_key,
+          gitlab_issues_enabled: @project&.issues_enabled?.to_s,
           upgrade_plan_path: @project && ::Gitlab::CurrentSettings.should_check_namespace_plan? ? upgrade_plan_path(@project.group) : nil,
           edit_project_path: @project ? edit_project_path(@project, anchor: 'js-shared-permissions') : nil
         )

ee/changelogs/unreleased/228824-follow-up-from-add-an-upgrade-banner-for-non-premium-plans.yml

+---
+title: Hide warning to disable GitLab issues in Jira integration form
+merge_request: 40248
+author:
+type: changed

ee/changelogs/unreleased/230380_expose_detected_at_information_on_graphql_api.yml

+---
+title: Introduce `detectedAt` field for VulnerabilityType on GraphQL API
+merge_request: 41000
+author:
+type: added

ee/spec/graphql/types/vulnerability_type_spec.rb

@@ -6,9 +6,24 @@ RSpec.describe GitlabSchema.types['Vulnerability'] do
   let_it_be(:project) { create(:project) }
   let_it_be(:user) { create(:user) }
   let_it_be(:vulnerability) { create(:vulnerability, project: project) }
-
-  let(:fields) do
-    %i[userPermissions id title description user_notes_count state severity report_type resolved_on_default_branch vulnerability_path location scanner primary_identifier identifiers project issueLinks]
+  let_it_be(:fields) do
+    %i[userPermissions
+       id
+       title
+       description
+       user_notes_count
+       state
+       severity
+       report_type
+       resolved_on_default_branch
+       vulnerability_path
+       location
+       scanner
+       primary_identifier
+       identifiers
+       project
+       issueLinks
+       detected_at]
   end
 
   before do

ee/spec/helpers/ee/services_helper_spec.rb

@@ -20,19 +20,31 @@ RSpec.describe EE::ServicesHelper do
   describe '#integration_form_data' do
     subject { helper.integration_form_data(integration) }
 
+    before do
+      assign(:project, project)
+    end
+
     context 'Slack service' do
       let(:integration) { build(:slack_service) }
 
       it 'does not include Jira specific fields' do
-        is_expected.not_to include(:show_jira_issues_integration, :enable_jira_issues, :project_key, :edit_project_path)
+        is_expected.not_to include(:show_jira_issues_integration, :enable_jira_issues, :project_key, :gitlab_issues_enabled, :edit_project_path)
       end
     end
 
     context 'Jira service' do
-      let(:integration) { build(:jira_service) }
+      let(:integration) { build(:jira_service, issues_enabled: true, project_key: 'FE') }
 
       it 'includes Jira specific fields' do
-        is_expected.to include(:show_jira_issues_integration, :enable_jira_issues, :project_key, :edit_project_path)
+        stub_licensed_features(jira_issues_integration: true)
+
+        is_expected.to include(
+          show_jira_issues_integration: 'true',
+          enable_jira_issues: 'true',
+          project_key: 'FE',
+          gitlab_issues_enabled: 'true',
+          edit_project_path: edit_project_path(project, anchor: 'js-shared-permissions')
+        )
       end
     end
   end

lib/gitlab/sql/except.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module SQL
+    # Class for building SQL EXCEPT statements.
+    #
+    # ORDER BYs are dropped from the relations as the final sort order is not
+    # guaranteed any way.
+    #
+    # Example usage:
+    #
+    #     except = Gitlab::SQL::Except.new([user.projects, user.personal_projects])
+    #     sql    = except.to_sql
+    #
+    #     Project.where("id IN (#{sql})")
+    class Except < SetOperator
+      def self.operator_keyword
+        'EXCEPT'
+      end
+    end
+  end
+end

lib/gitlab/sql/intersect.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module SQL
+    # Class for building SQL INTERSECT statements.
+    #
+    # ORDER BYs are dropped from the relations as the final sort order is not
+    # guaranteed any way.
+    #
+    # Example usage:
+    #
+    #     hierarchies = [group1.self_and_hierarchy, group2.self_and_hierarchy]
+    #     intersect   = Gitlab::SQL::Intersect.new(hierarchies)
+    #     sql         = intersect.to_sql
+    #
+    #     Project.where("id IN (#{sql})")
+    class Intersect < SetOperator
+      def self.operator_keyword
+        'INTERSECT'
+      end
+    end
+  end
+end

lib/gitlab/sql/set_operator.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module SQL
+    # Class for building SQL set operator statements (UNION, INTERSECT, and
+    # EXCEPT).
+    #
+    # ORDER BYs are dropped from the relations as the final sort order is not
+    # guaranteed any way.
+    #
+    # Example usage:
+    #
+    #     union = Gitlab::SQL::Union.new([user.personal_projects, user.projects])
+    #     sql   = union.to_sql
+    #
+    #     Project.where("id IN (#{sql})")
+    class SetOperator
+      def initialize(relations, remove_duplicates: true)
+        @relations = relations
+        @remove_duplicates = remove_duplicates
+      end
+
+      def self.operator_keyword
+        raise NotImplementedError
+      end
+
+      def to_sql
+        # Some relations may include placeholders for prepared statements, these
+        # aren't incremented properly when joining relations together this way.
+        # By using "unprepared_statements" we remove the usage of placeholders
+        # (thus fixing this problem), at a slight performance cost.
+        fragments = ActiveRecord::Base.connection.unprepared_statement do
+          relations.map { |rel| rel.reorder(nil).to_sql }.reject(&:blank?)
+        end
+
+        if fragments.any?
+          "(" + fragments.join(")\n#{operator_keyword_fragment}\n(") + ")"
+        else
+          'NULL'
+        end
+      end
+
+      # UNION [ALL] | INTERSECT [ALL] | EXCEPT [ALL]
+      def operator_keyword_fragment
+        remove_duplicates ? self.class.operator_keyword : "#{self.class.operator_keyword} ALL"
+      end
+
+      private
+
+      attr_reader :relations, :remove_duplicates
+    end
+  end
+end

lib/gitlab/sql/union.rb

@@ -13,30 +13,9 @@ module Gitlab
     #     sql   = union.to_sql
     #
     #     Project.where("id IN (#{sql})")
-    class Union
-      def initialize(relations, remove_duplicates: true)
-        @relations = relations
-        @remove_duplicates = remove_duplicates
-      end
-
-      def to_sql
-        # Some relations may include placeholders for prepared statements, these
-        # aren't incremented properly when joining relations together this way.
-        # By using "unprepared_statements" we remove the usage of placeholders
-        # (thus fixing this problem), at a slight performance cost.
-        fragments = ActiveRecord::Base.connection.unprepared_statement do
-          @relations.map { |rel| rel.reorder(nil).to_sql }.reject(&:blank?)
-        end
-
-        if fragments.any?
-          "(" + fragments.join(")\n#{union_keyword}\n(") + ")"
-        else
-          'NULL'
-        end
-      end
-
-      def union_keyword
-        @remove_duplicates ? 'UNION' : 'UNION ALL'
+    class Union < SetOperator
+      def self.operator_keyword
+        'UNION'
       end
     end
   end

package.json

@@ -43,7 +43,7 @@
     "@babel/preset-env": "^7.10.1",
     "@gitlab/at.js": "1.5.5",
     "@gitlab/svgs": "1.161.0",
-    "@gitlab/ui": "20.13.0",
+    "@gitlab/ui": "20.16.0",
     "@gitlab/visual-review-tools": "1.6.1",
     "@rails/actioncable": "^6.0.3-1",
     "@sentry/browser": "^5.10.2",

rubocop/cop/gitlab/except.rb

+# frozen_string_literal: true
+
+module RuboCop
+  module Cop
+    module Gitlab
+      # Cop that disallows the use of `Gitlab::SQL::Except`, in favour of using
+      # the `FromExcept` module.
+      class Except < RuboCop::Cop::Cop
+        MSG = 'Use the `FromExcept` concern, instead of using `Gitlab::SQL::Except` directly'
+
+        def_node_matcher :raw_except?, <<~PATTERN
+          (send (const (const (const nil? :Gitlab) :SQL) :Except) :new ...)
+        PATTERN
+
+        def on_send(node)
+          return unless raw_except?(node)
+
+          add_offense(node, location: :expression)
+        end
+      end
+    end
+  end
+end

rubocop/cop/gitlab/intersect.rb

+# frozen_string_literal: true
+
+module RuboCop
+  module Cop
+    module Gitlab
+      # Cop that disallows the use of `Gitlab::SQL::Intersect`, in favour of using
+      # the `FromIntersect` module.
+      class Intersect < RuboCop::Cop::Cop
+        MSG = 'Use the `FromIntersect` concern, instead of using `Gitlab::SQL::Intersect` directly'
+
+        def_node_matcher :raw_intersect?, <<~PATTERN
+          (send (const (const (const nil? :Gitlab) :SQL) :Intersect) :new ...)
+        PATTERN
+
+        def on_send(node)
+          return unless raw_intersect?(node)
+
+          add_offense(node, location: :expression)
+        end
+      end
+    end
+  end
+end

spec/features/issuables/issuable_list_spec.rb

@@ -51,8 +51,8 @@ RSpec.describe 'issuable list', :js do
   it "counts merge requests closing issues icons for each issue" do
     visit_issuable_list(:issue)
 
-    expect(page).to have_selector('.icon-merge-request-unmerged', count: 1)
-    expect(first('.icon-merge-request-unmerged').find(:xpath, '..')).to have_content(1)
+    expect(page).to have_selector('[data-testid="merge-requests"]', count: 1)
+    expect(first('[data-testid="merge-requests"]').find(:xpath, '..')).to have_content(1)
   end
 
   def visit_issuable_list(issuable_type)

spec/frontend/integrations/edit/components/jira_issues_fields_spec.js

@@ -92,5 +92,21 @@ describe('JiraIssuesFields', () => {
 
       expect(wrapper.find(`a[href="${defaultProps.editProjectPath}"]`).exists()).toBe(true);
     });
+
+    describe('GitLab issues warning', () => {
+      const expectedText = 'Consider disabling GitLab issues';
+
+      it('contains warning when GitLab issues is enabled', () => {
+        createComponent();
+
+        expect(wrapper.text()).toContain(expectedText);
+      });
+
+      it('does not contain warning when GitLab issues is disabled', () => {
+        createComponent({ gitlabIssuesEnabled: false });
+
+        expect(wrapper.text()).not.toContain(expectedText);
+      });
+    });
   });
 });

spec/lib/gitlab/sql/except_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::SQL::Except do
+  it_behaves_like 'SQL set operator', 'EXCEPT'
+end

spec/lib/gitlab/sql/intersect_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::SQL::Intersect do
+  it_behaves_like 'SQL set operator', 'INTERSECT'
+end

spec/lib/gitlab/sql/union_spec.rb

@@ -3,40 +3,5 @@
 require 'spec_helper'
 
 RSpec.describe Gitlab::SQL::Union do
-  let(:relation_1) { User.where(email: 'alice@example.com').select(:id) }
-  let(:relation_2) { User.where(email: 'bob@example.com').select(:id) }
-
-  def to_sql(relation)
-    relation.reorder(nil).to_sql
-  end
-
-  describe '#to_sql' do
-    it 'returns a String joining relations together using a UNION' do
-      union = described_class.new([relation_1, relation_2])
-
-      expect(union.to_sql).to eq("(#{to_sql(relation_1)})\nUNION\n(#{to_sql(relation_2)})")
-    end
-
-    it 'skips Model.none segements' do
-      empty_relation = User.none
-      union = described_class.new([empty_relation, relation_1, relation_2])
-
-      expect {User.where("users.id IN (#{union.to_sql})").to_a}.not_to raise_error
-      expect(union.to_sql).to eq("(#{to_sql(relation_1)})\nUNION\n(#{to_sql(relation_2)})")
-    end
-
-    it 'uses UNION ALL when removing duplicates is disabled' do
-      union = described_class
-        .new([relation_1, relation_2], remove_duplicates: false)
-
-      expect(union.to_sql).to include('UNION ALL')
-    end
-
-    it 'returns `NULL` if all relations are empty' do
-      empty_relation = User.none
-      union = described_class.new([empty_relation, empty_relation])
-
-      expect(union.to_sql).to eq('NULL')
-    end
-  end
+  it_behaves_like 'SQL set operator', 'UNION'
 end

spec/models/concerns/from_except_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe FromExcept do
+  it_behaves_like 'from set operator', Gitlab::SQL::Except
+end

spec/models/concerns/from_intersect_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe FromIntersect do
+  it_behaves_like 'from set operator', Gitlab::SQL::Intersect
+end

spec/models/concerns/from_set_operator_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe FromSetOperator do
+  describe 'when set operator method already exists' do
+    let(:redefine_method) do
+      Class.new do
+        def self.from_union
+          # This method intentionally left blank.
+        end
+
+        extend FromSetOperator
+        define_set_operator Gitlab::SQL::Union
+      end
+    end
+
+    it { expect { redefine_method }.to raise_exception(RuntimeError) }
+  end
+end

spec/models/concerns/from_union_spec.rb

@@ -3,38 +3,13 @@
 require 'spec_helper'
 
 RSpec.describe FromUnion do
-  describe '.from_union' do
-    let(:model) do
-      Class.new(ActiveRecord::Base) do
-        self.table_name = 'users'
-
-        include FromUnion
-      end
-    end
-
-    it 'selects from the results of the UNION' do
-      query = model.from_union([model.where(id: 1), model.where(id: 2)])
-
-      expect(query.to_sql).to match(/FROM \(\(SELECT.+\)\nUNION\n\(SELECT.+\)\) users/m)
+  [true, false].each do |sql_set_operator|
+    context "when sql-set-operators feature flag is #{sql_set_operator}" do
+      before do
+        stub_feature_flags(sql_set_operators: sql_set_operator)
       end
 
-    it 'supports the use of a custom alias for the sub query' do
-      query = model.from_union(
-        [model.where(id: 1), model.where(id: 2)],
-        alias_as: 'kittens'
-      )
-
-      expect(query.to_sql).to match(/FROM \(\(SELECT.+\)\nUNION\n\(SELECT.+\)\) kittens/m)
-    end
-
-    it 'supports keeping duplicate rows' do
-      query = model.from_union(
-        [model.where(id: 1), model.where(id: 2)],
-        remove_duplicates: false
-      )
-
-      expect(query.to_sql)
-        .to match(/FROM \(\(SELECT.+\)\nUNION ALL\n\(SELECT.+\)\) users/m)
+      it_behaves_like 'from set operator', Gitlab::SQL::Union
     end
   end
 end

spec/requests/api/graphql/project/issues_spec.rb

@@ -261,7 +261,7 @@ RSpec.describe 'getting an issue list for a project' do
       <<~QUERY
       edges {
         node {
-          id
+          iid
           alertManagementAlert {
             title
           }
@@ -270,9 +270,9 @@ RSpec.describe 'getting an issue list for a project' do
       QUERY
     end
 
-    # Alerts need to reporter and above
+    # Alerts need to have developer permission and above
     before do
-      project.add_reporter(current_user)
+      project.add_developer(current_user)
     end
 
     it 'avoids N+1 queries' do
@@ -286,7 +286,10 @@ RSpec.describe 'getting an issue list for a project' do
     it 'returns the alert data' do
       post_graphql(query, current_user: current_user)
 
-      issues_data
+      alert_titles = issues_data.map { |issue| issue.dig('node', 'alertManagementAlert', 'title') }
+      expected_titles = issues.map { |issue| issue.alert_management_alert&.title }
+
+      expect(alert_titles).to contain_exactly(*expected_titles)
     end
   end
 end

spec/rubocop/cop/gitlab/except_spec.rb

+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+require 'rubocop'
+require 'rubocop/rspec/support'
+require_relative '../../../../rubocop/cop/gitlab/except'
+
+RSpec.describe RuboCop::Cop::Gitlab::Except, type: :rubocop do
+  include CopHelper
+
+  subject(:cop) { described_class.new }
+
+  it 'flags the use of Gitlab::SQL::Except.new' do
+    expect_offense(<<~SOURCE)
+    Gitlab::SQL::Except.new([foo])
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use the `FromExcept` concern, instead of using `Gitlab::SQL::Except` directly
+    SOURCE
+  end
+end

spec/rubocop/cop/gitlab/intersect_spec.rb

+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+require 'rubocop'
+require 'rubocop/rspec/support'
+require_relative '../../../../rubocop/cop/gitlab/intersect'
+
+RSpec.describe RuboCop::Cop::Gitlab::Intersect, type: :rubocop do
+  include CopHelper
+
+  subject(:cop) { described_class.new }
+
+  it 'flags the use of Gitlab::SQL::Intersect.new' do
+    expect_offense(<<~SOURCE)
+    Gitlab::SQL::Intersect.new([foo])
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use the `FromIntersect` concern, instead of using `Gitlab::SQL::Intersect` directly
+    SOURCE
+  end
+end

spec/support/import_export/configuration_helper.rb

@@ -44,8 +44,8 @@ module ConfigurationHelper
     import_export_config = config_hash(config)
     excluded_attributes = import_export_config[:excluded_attributes][relation_name.to_sym]
     included_attributes = import_export_config[:included_attributes][relation_name.to_sym]
-    attributes = attributes - Gitlab::Json.parse(excluded_attributes.to_json) if excluded_attributes
-    attributes = attributes & Gitlab::Json.parse(included_attributes.to_json) if included_attributes
+    attributes -= Gitlab::Json.parse(excluded_attributes.to_json) if excluded_attributes
+    attributes &= Gitlab::Json.parse(included_attributes.to_json) if included_attributes
 
     attributes
   end

spec/support/shared_examples/lib/gitlab/sql/set_operator_shared_examples.rb

+# frozen_string_literal: true
+
+RSpec.shared_examples 'SQL set operator' do |operator_keyword|
+  operator_keyword = operator_keyword.upcase
+
+  let(:relation_1) { User.where(email: 'alice@example.com').select(:id) }
+  let(:relation_2) { User.where(email: 'bob@example.com').select(:id) }
+
+  def to_sql(relation)
+    relation.reorder(nil).to_sql
+  end
+
+  describe '.operator_keyword' do
+    it { expect(described_class.operator_keyword).to eq operator_keyword }
+  end
+
+  describe '#to_sql' do
+    it "returns a String joining relations together using a #{operator_keyword}" do
+      set_operator = described_class.new([relation_1, relation_2])
+
+      expect(set_operator.to_sql).to eq("(#{to_sql(relation_1)})\n#{operator_keyword}\n(#{to_sql(relation_2)})")
+    end
+
+    it 'skips Model.none segements' do
+      empty_relation = User.none
+      set_operator = described_class.new([empty_relation, relation_1, relation_2])
+
+      expect {User.where("users.id IN (#{set_operator.to_sql})").to_a}.not_to raise_error
+      expect(set_operator.to_sql).to eq("(#{to_sql(relation_1)})\n#{operator_keyword}\n(#{to_sql(relation_2)})")
+    end
+
+    it "uses #{operator_keyword} ALL when removing duplicates is disabled" do
+      set_operator = described_class
+        .new([relation_1, relation_2], remove_duplicates: false)
+
+      expect(set_operator.to_sql).to include("#{operator_keyword} ALL")
+    end
+
+    it 'returns `NULL` if all relations are empty' do
+      empty_relation = User.none
+      set_operator = described_class.new([empty_relation, empty_relation])
+
+      expect(set_operator.to_sql).to eq('NULL')
+    end
+  end
+end

spec/support/shared_examples/models/concerns/from_set_operator_shared_examples.rb

+# frozen_string_literal: true
+
+RSpec.shared_examples 'from set operator' do |sql_klass|
+  from_set_operator_concern = described_class
+  operator_keyword = sql_klass.operator_keyword
+  operator_method = "from_#{sql_klass.operator_keyword.downcase}"
+
+  describe "##{operator_method}" do
+    let(:model) do
+      Class.new(ActiveRecord::Base) do
+        self.table_name = 'users'
+
+        include from_set_operator_concern
+      end
+    end
+
+    it "selects from the results of the #{operator_keyword}" do
+      query = model.public_send(operator_method, [model.where(id: 1), model.where(id: 2)])
+
+      expect(query.to_sql).to match(/FROM \(\(SELECT.+\)\n#{operator_keyword}\n\(SELECT.+\)\) users/m)
+    end
+
+    it 'supports the use of a custom alias for the sub query' do
+      query = model.public_send(operator_method,
+        [model.where(id: 1), model.where(id: 2)],
+        alias_as: 'kittens'
+      )
+
+      expect(query.to_sql).to match(/FROM \(\(SELECT.+\)\n#{operator_keyword}\n\(SELECT.+\)\) kittens/m)
+    end
+
+    it 'supports keeping duplicate rows' do
+      query = model.public_send(operator_method,
+        [model.where(id: 1), model.where(id: 2)],
+        remove_duplicates: false
+      )
+
+      expect(query.to_sql)
+        .to match(/FROM \(\(SELECT.+\)\n#{operator_keyword} ALL\n\(SELECT.+\)\) users/m)
+    end
+  end
+end

yarn.lock

@@ -848,10 +848,10 @@
   resolved "https://registry.yarnpkg.com/@gitlab/svgs/-/svgs-1.161.0.tgz#661e8d19862dfba0e4c558e2eb6d64b402c1453e"
   integrity sha512-qsbboEICn08ZoEoAX/TuYygsFaXlzsCY+CfmdOzqvJbOdfHhVXmrJBxd2hP2qqjTZm2PkbRRmn+03+ce1jvatQ==
 
-"@gitlab/ui@20.13.0":
-  version "20.13.0"
-  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-20.13.0.tgz#03e50f42ff25777f0538cea4348b40700c73a247"
-  integrity sha512-00NxjSmFS78rUNtcqhKfmf9Ip8YjBMoO3JHY8a6sacYVJ+a+UKHvsi1ksCn7F5elSIZIuVmngSvIebw0LUqvpw==
+"@gitlab/ui@20.16.0":
+  version "20.16.0"
+  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-20.16.0.tgz#45bad5500e6f47bc4bebb95a17b446f254f9ee21"
+  integrity sha512-k1+X8RgBXknCu40dEWTjE0Sd9jzGmpoPWPlgmoo28tE1vewhRmCOa8aL0tAcm6VNg5av5ZEqoQEJvgFKxLQB1Q==
   dependencies:
     "@babel/standalone" "^7.0.0"
     "@gitlab/vue-toasted" "^1.3.0"