Move issue tracker integrations to Integrations::

https://gitlab.com/gitlab-org/gitlab/-/issues/201855

.rubocop_manual_todo.yml

@@ -1655,21 +1655,17 @@ Gitlab/NamespacedClass:
     - 'app/models/project_repository_storage_move.rb'
     - 'app/models/project_services/alerts_service.rb'
     - 'app/models/project_services/alerts_service_data.rb'
-    - 'app/models/project_services/bugzilla_service.rb'
     - 'app/models/project_services/buildkite_service.rb'
     - 'app/models/project_services/chat_notification_service.rb'
     - 'app/models/project_services/ci_service.rb'
-    - 'app/models/project_services/custom_issue_tracker_service.rb'
     - 'app/models/project_services/discord_service.rb'
     - 'app/models/project_services/drone_ci_service.rb'
-    - 'app/models/project_services/ewm_service.rb'
     - 'app/models/project_services/external_wiki_service.rb'
     - 'app/models/project_services/flowdock_service.rb'
     - 'app/models/project_services/hangouts_chat_service.rb'
     - 'app/models/project_services/hipchat_service.rb'
     - 'app/models/project_services/irker_service.rb'
     - 'app/models/project_services/issue_tracker_data.rb'
-    - 'app/models/project_services/issue_tracker_service.rb'
     - 'app/models/project_services/jenkins_service.rb'
     - 'app/models/project_services/jira_service.rb'
     - 'app/models/project_services/jira_tracker_data.rb'
@@ -1679,21 +1675,18 @@ Gitlab/NamespacedClass:
     - 'app/models/project_services/mock_ci_service.rb'
     - 'app/models/project_services/mock_monitoring_service.rb'
     - 'app/models/project_services/monitoring_service.rb'
-    - 'app/models/project_services/open_project_service.rb'
     - 'app/models/project_services/open_project_tracker_data.rb'
     - 'app/models/project_services/packagist_service.rb'
     - 'app/models/project_services/pipelines_email_service.rb'
     - 'app/models/project_services/pivotaltracker_service.rb'
     - 'app/models/project_services/prometheus_service.rb'
     - 'app/models/project_services/pushover_service.rb'
-    - 'app/models/project_services/redmine_service.rb'
     - 'app/models/project_services/slack_service.rb'
     - 'app/models/project_services/slack_slash_commands_service.rb'
     - 'app/models/project_services/slash_commands_service.rb'
     - 'app/models/project_services/teamcity_service.rb'
     - 'app/models/project_services/unify_circuit_service.rb'
     - 'app/models/project_services/webex_teams_service.rb'
-    - 'app/models/project_services/youtrack_service.rb'
     - 'app/models/project_setting.rb'
     - 'app/models/project_snippet.rb'
     - 'app/models/project_statistics.rb'

.rubocop_todo.yml

@@ -152,7 +152,7 @@ Lint/MissingCopEnableDirective:
 Lint/MixedRegexpCaptureTypes:
   Exclude:
     - 'app/models/alert_management/alert.rb'
-    - 'app/models/project_services/ewm_service.rb'
+    - 'app/models/integrations/ewm.rb'
     - 'app/uploaders/file_uploader.rb'
     - 'ee/lib/gitlab/code_owners/reference_extractor.rb'
     - 'lib/gitlab/ci/pipeline/expression/lexeme/string.rb'

app/models/concerns/mentionable/reference_regexes.rb

@@ -29,7 +29,7 @@ module Mentionable
 
     def self.external_pattern
       strong_memoize(:external_pattern) do
-        issue_pattern = IssueTrackerService.reference_pattern
+        issue_pattern = Integrations::IssueTracker.reference_pattern
         link_patterns = URI::DEFAULT_PARSER.make_regexp(%w(http https))
         reference_pattern(link_patterns, issue_pattern)
       end

app/models/integrations/bugzilla.rb

+# frozen_string_literal: true
+
+module Integrations
+  class Bugzilla < IssueTracker
+    include ActionView::Helpers::UrlHelper
+
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def title
+      'Bugzilla'
+    end
+
+    def description
+      s_("IssueTracker|Use Bugzilla as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/bugzilla'), target: '_blank', rel: 'noopener noreferrer'
+      s_("IssueTracker|Use Bugzilla as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'bugzilla'
+    end
+  end
+end

app/models/integrations/custom_issue_tracker.rb

+# frozen_string_literal: true
+
+module Integrations
+  class CustomIssueTracker < IssueTracker
+    include ActionView::Helpers::UrlHelper
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def title
+      s_('IssueTracker|Custom issue tracker')
+    end
+
+    def description
+      s_("IssueTracker|Use a custom issue tracker as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/custom_issue_tracker'), target: '_blank', rel: 'noopener noreferrer'
+      s_('IssueTracker|Use a custom issue tracker that is not in the integration list. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'custom_issue_tracker'
+    end
+  end
+end

app/models/integrations/ewm.rb

+# frozen_string_literal: true
+
+module Integrations
+  class Ewm < IssueTracker
+    include ActionView::Helpers::UrlHelper
+
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def self.reference_pattern(only_long: true)
+      @reference_pattern ||= %r{(?<issue>\b(bug|task|work item|workitem|rtcwi|defect)\b\s+\d+)}i
+    end
+
+    def title
+      'EWM'
+    end
+
+    def description
+      s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/ewm'), target: '_blank', rel: 'noopener noreferrer'
+      s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'ewm'
+    end
+
+    def can_test?
+      false
+    end
+
+    def issue_url(iid)
+      issues_url.gsub(':id', iid.to_s.split(' ')[-1])
+    end
+  end
+end

app/models/integrations/issue_tracker.rb

+# frozen_string_literal: true
+
+module Integrations
+  class IssueTracker < Integration
+    validate :one_issue_tracker, if: :activated?, on: :manual_change
+
+    # TODO: we can probably just delegate as part of
+    # https://gitlab.com/gitlab-org/gitlab/issues/29404
+    data_field :project_url, :issues_url, :new_issue_url
+
+    default_value_for :category, 'issue_tracker'
+
+    before_validation :handle_properties
+    before_validation :set_default_data, on: :create
+
+    # Pattern used to extract links from comments
+    # Override this method on services that uses different patterns
+    # This pattern does not support cross-project references
+    # The other code assumes that this pattern is a superset of all
+    # overridden patterns. See ReferenceRegexes.external_pattern
+    def self.reference_pattern(only_long: false)
+      if only_long
+        /(\b[A-Z][A-Z0-9_]*-)#{Gitlab::Regex.issue}/
+      else
+        /(\b[A-Z][A-Z0-9_]*-|#{Issue.reference_prefix})#{Gitlab::Regex.issue}/
+      end
+    end
+
+    def handle_properties
+      # this has been moved from initialize_properties and should be improved
+      # as part of https://gitlab.com/gitlab-org/gitlab/issues/29404
+      return unless properties
+
+      @legacy_properties_data = properties.dup
+      data_values = properties.slice!('title', 'description')
+      data_values.reject! { |key| data_fields.changed.include?(key) }
+      data_values.slice!(*data_fields.attributes.keys)
+      data_fields.assign_attributes(data_values) if data_values.present?
+
+      self.properties = {}
+    end
+
+    def legacy_properties_data
+      @legacy_properties_data ||= {}
+    end
+
+    def supports_data_fields?
+      true
+    end
+
+    def data_fields
+      issue_tracker_data || self.build_issue_tracker_data
+    end
+
+    def default?
+      default
+    end
+
+    def issue_url(iid)
+      issues_url.gsub(':id', iid.to_s)
+    end
+
+    def issue_tracker_path
+      project_url
+    end
+
+    def new_issue_path
+      new_issue_url
+    end
+
+    def issue_path(iid)
+      issue_url(iid)
+    end
+
+    def fields
+      [
+        { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in the external issue tracker.'), required: true },
+        { type: 'text', name: 'issues_url', title: s_('IssueTracker|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the external issue tracker. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true },
+        { type: 'text', name: 'new_issue_url', title: s_('IssueTracker|New issue URL'), help: s_('IssueTracker|The URL to create an issue in the external issue tracker.'), required: true }
+      ]
+    end
+
+    def initialize_properties
+      {}
+    end
+
+    # Initialize with default properties values
+    def set_default_data
+      return unless issues_tracker.present?
+
+      # we don't want to override if we have set something
+      return if project_url || issues_url || new_issue_url
+
+      data_fields.project_url = issues_tracker['project_url']
+      data_fields.issues_url = issues_tracker['issues_url']
+      data_fields.new_issue_url = issues_tracker['new_issue_url']
+    end
+
+    def self.supported_events
+      %w(push)
+    end
+
+    def execute(data)
+      return unless supported_events.include?(data[:object_kind])
+
+      message = "#{self.type} was unable to reach #{self.project_url}. Check the url and try again."
+      result = false
+
+      begin
+        response = Gitlab::HTTP.head(self.project_url, verify: true)
+
+        if response
+          message = "#{self.type} received response #{response.code} when attempting to connect to #{self.project_url}"
+          result = true
+        end
+      rescue Gitlab::HTTP::Error, Timeout::Error, SocketError, Errno::ECONNRESET, Errno::ECONNREFUSED, OpenSSL::SSL::SSLError => error
+        message = "#{self.type} had an error when trying to connect to #{self.project_url}: #{error.message}"
+      end
+      log_info(message)
+      result
+    end
+
+    def support_close_issue?
+      false
+    end
+
+    def support_cross_reference?
+      false
+    end
+
+    private
+
+    def enabled_in_gitlab_config
+      Gitlab.config.issues_tracker &&
+        Gitlab.config.issues_tracker.values.any? &&
+        issues_tracker
+    end
+
+    def issues_tracker
+      Gitlab.config.issues_tracker[to_param]
+    end
+
+    def one_issue_tracker
+      return if template? || instance?
+      return if project.blank?
+
+      if project.integrations.external_issue_trackers.where.not(id: id).any?
+        errors.add(:base, _('Another issue tracker is already in use. Only one issue tracker service can be active at a time'))
+      end
+    end
+  end
+end
+
+Integrations::IssueTracker.prepend_mod_with('Integrations::IssueTracker')

app/models/integrations/open_project.rb

+# frozen_string_literal: true
+
+module Integrations
+  class OpenProject < IssueTracker
+    validates :url, public_url: true, presence: true, if: :activated?
+    validates :api_url, public_url: true, allow_blank: true, if: :activated?
+    validates :token, presence: true, if: :activated?
+    validates :project_identifier_code, presence: true, if: :activated?
+
+    data_field :url, :api_url, :token, :closed_status_id, :project_identifier_code
+
+    def data_fields
+      open_project_tracker_data || self.build_open_project_tracker_data
+    end
+
+    def self.to_param
+      'open_project'
+    end
+  end
+end

app/models/integrations/redmine.rb

+# frozen_string_literal: true
+
+module Integrations
+  class Redmine < IssueTracker
+    include ActionView::Helpers::UrlHelper
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def title
+      'Redmine'
+    end
+
+    def description
+      s_("IssueTracker|Use Redmine as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/redmine'), target: '_blank', rel: 'noopener noreferrer'
+      s_('IssueTracker|Use Redmine as the issue tracker. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'redmine'
+    end
+  end
+end

app/models/integrations/youtrack.rb

+# frozen_string_literal: true
+
+module Integrations
+  class Youtrack < IssueTracker
+    include ActionView::Helpers::UrlHelper
+
+    validates :project_url, :issues_url, presence: true, public_url: true, if: :activated?
+
+    # {PROJECT-KEY}-{NUMBER} Examples: YT-1, PRJ-1, gl-030
+    def self.reference_pattern(only_long: false)
+      if only_long
+        /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)/
+      else
+        /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)|(#{Issue.reference_prefix}#{Gitlab::Regex.issue})/
+      end
+    end
+
+    def title
+      'YouTrack'
+    end
+
+    def description
+      s_("IssueTracker|Use YouTrack as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/youtrack'), target: '_blank', rel: 'noopener noreferrer'
+      s_("IssueTracker|Use YouTrack as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'youtrack'
+    end
+
+    def fields
+      [
+        { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in YouTrack.'), required: true },
+        { type: 'text', name: 'issues_url', title: s_('ProjectService|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the YouTrack project. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true }
+      ]
+    end
+  end
+end

app/models/project.rb

@@ -186,13 +186,17 @@ class Project < ApplicationRecord
   has_one :asana_service, class_name: 'Integrations::Asana'
   has_one :assembla_service, class_name: 'Integrations::Assembla'
   has_one :bamboo_service, class_name: 'Integrations::Bamboo'
+  has_one :bugzilla_service, class_name: 'Integrations::Bugzilla'
   has_one :campfire_service, class_name: 'Integrations::Campfire'
   has_one :confluence_service, class_name: 'Integrations::Confluence'
+  has_one :custom_issue_tracker_service, class_name: 'Integrations::CustomIssueTracker'
   has_one :datadog_service, class_name: 'Integrations::Datadog'
   has_one :emails_on_push_service, class_name: 'Integrations::EmailsOnPush'
+  has_one :ewm_service, class_name: 'Integrations::Ewm'
+  has_one :redmine_service, class_name: 'Integrations::Redmine'
+  has_one :youtrack_service, class_name: 'Integrations::Youtrack'
   has_one :discord_service
   has_one :drone_ci_service
-  has_one :ewm_service
   has_one :pipelines_email_service
   has_one :irker_service
   has_one :pivotaltracker_service
@@ -206,10 +210,6 @@ class Project < ApplicationRecord
   has_one :pushover_service
   has_one :jenkins_service
   has_one :jira_service
-  has_one :redmine_service
-  has_one :youtrack_service
-  has_one :custom_issue_tracker_service
-  has_one :bugzilla_service
   has_one :external_wiki_service
   has_one :prometheus_service, inverse_of: :project
   has_one :mock_ci_service

app/models/project_services/bugzilla_service.rb

-# frozen_string_literal: true
-
-class BugzillaService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def title
-    'Bugzilla'
-  end
-
-  def description
-    s_("IssueTracker|Use Bugzilla as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/bugzilla'), target: '_blank', rel: 'noopener noreferrer'
-    s_("IssueTracker|Use Bugzilla as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'bugzilla'
-  end
-end

app/models/project_services/custom_issue_tracker_service.rb

-# frozen_string_literal: true
-
-class CustomIssueTrackerService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def title
-    s_('IssueTracker|Custom issue tracker')
-  end
-
-  def description
-    s_("IssueTracker|Use a custom issue tracker as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/custom_issue_tracker'), target: '_blank', rel: 'noopener noreferrer'
-    s_('IssueTracker|Use a custom issue tracker that is not in the integration list. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'custom_issue_tracker'
-  end
-end

app/models/project_services/ewm_service.rb

-# frozen_string_literal: true
-
-class EwmService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def self.reference_pattern(only_long: true)
-    @reference_pattern ||= %r{(?<issue>\b(bug|task|work item|workitem|rtcwi|defect)\b\s+\d+)}i
-  end
-
-  def title
-    'EWM'
-  end
-
-  def description
-    s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/ewm'), target: '_blank', rel: 'noopener noreferrer'
-    s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'ewm'
-  end
-
-  def can_test?
-    false
-  end
-
-  def issue_url(iid)
-    issues_url.gsub(':id', iid.to_s.split(' ')[-1])
-  end
-end

app/models/project_services/issue_tracker_service.rb

-# frozen_string_literal: true
-
-class IssueTrackerService < Integration
-  validate :one_issue_tracker, if: :activated?, on: :manual_change
-
-  # TODO: we can probably just delegate as part of
-  # https://gitlab.com/gitlab-org/gitlab/issues/29404
-  data_field :project_url, :issues_url, :new_issue_url
-
-  default_value_for :category, 'issue_tracker'
-
-  before_validation :handle_properties
-  before_validation :set_default_data, on: :create
-
-  # Pattern used to extract links from comments
-  # Override this method on services that uses different patterns
-  # This pattern does not support cross-project references
-  # The other code assumes that this pattern is a superset of all
-  # overridden patterns. See ReferenceRegexes.external_pattern
-  def self.reference_pattern(only_long: false)
-    if only_long
-      /(\b[A-Z][A-Z0-9_]*-)#{Gitlab::Regex.issue}/
-    else
-      /(\b[A-Z][A-Z0-9_]*-|#{Issue.reference_prefix})#{Gitlab::Regex.issue}/
-    end
-  end
-
-  def handle_properties
-    # this has been moved from initialize_properties and should be improved
-    # as part of https://gitlab.com/gitlab-org/gitlab/issues/29404
-    return unless properties
-
-    @legacy_properties_data = properties.dup
-    data_values = properties.slice!('title', 'description')
-    data_values.reject! { |key| data_fields.changed.include?(key) }
-    data_values.slice!(*data_fields.attributes.keys)
-    data_fields.assign_attributes(data_values) if data_values.present?
-
-    self.properties = {}
-  end
-
-  def legacy_properties_data
-    @legacy_properties_data ||= {}
-  end
-
-  def supports_data_fields?
-    true
-  end
-
-  def data_fields
-    issue_tracker_data || self.build_issue_tracker_data
-  end
-
-  def default?
-    default
-  end
-
-  def issue_url(iid)
-    issues_url.gsub(':id', iid.to_s)
-  end
-
-  def issue_tracker_path
-    project_url
-  end
-
-  def new_issue_path
-    new_issue_url
-  end
-
-  def issue_path(iid)
-    issue_url(iid)
-  end
-
-  def fields
-    [
-      { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in the external issue tracker.'), required: true },
-      { type: 'text', name: 'issues_url', title: s_('IssueTracker|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the external issue tracker. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true },
-      { type: 'text', name: 'new_issue_url', title: s_('IssueTracker|New issue URL'), help: s_('IssueTracker|The URL to create an issue in the external issue tracker.'), required: true }
-    ]
-  end
-
-  def initialize_properties
-    {}
-  end
-
-  # Initialize with default properties values
-  def set_default_data
-    return unless issues_tracker.present?
-
-    # we don't want to override if we have set something
-    return if project_url || issues_url || new_issue_url
-
-    data_fields.project_url = issues_tracker['project_url']
-    data_fields.issues_url = issues_tracker['issues_url']
-    data_fields.new_issue_url = issues_tracker['new_issue_url']
-  end
-
-  def self.supported_events
-    %w(push)
-  end
-
-  def execute(data)
-    return unless supported_events.include?(data[:object_kind])
-
-    message = "#{self.type} was unable to reach #{self.project_url}. Check the url and try again."
-    result = false
-
-    begin
-      response = Gitlab::HTTP.head(self.project_url, verify: true)
-
-      if response
-        message = "#{self.type} received response #{response.code} when attempting to connect to #{self.project_url}"
-        result = true
-      end
-    rescue Gitlab::HTTP::Error, Timeout::Error, SocketError, Errno::ECONNRESET, Errno::ECONNREFUSED, OpenSSL::SSL::SSLError => error
-      message = "#{self.type} had an error when trying to connect to #{self.project_url}: #{error.message}"
-    end
-    log_info(message)
-    result
-  end
-
-  def support_close_issue?
-    false
-  end
-
-  def support_cross_reference?
-    false
-  end
-
-  private
-
-  def enabled_in_gitlab_config
-    Gitlab.config.issues_tracker &&
-      Gitlab.config.issues_tracker.values.any? &&
-      issues_tracker
-  end
-
-  def issues_tracker
-    Gitlab.config.issues_tracker[to_param]
-  end
-
-  def one_issue_tracker
-    return if template? || instance?
-    return if project.blank?
-
-    if project.integrations.external_issue_trackers.where.not(id: id).any?
-      errors.add(:base, _('Another issue tracker is already in use. Only one issue tracker service can be active at a time'))
-    end
-  end
-end
-
-IssueTrackerService.prepend_mod_with('IssueTrackerService')

app/models/project_services/jira_service.rb

 # frozen_string_literal: true
 
 # Accessible as Project#external_issue_tracker
-class JiraService < IssueTrackerService
+class JiraService < Integrations::IssueTracker
   extend ::Gitlab::Utils::Override
   include Gitlab::Routing
   include ApplicationHelper

app/models/project_services/open_project_service.rb

-# frozen_string_literal: true
-
-class OpenProjectService < IssueTrackerService
-  validates :url, public_url: true, presence: true, if: :activated?
-  validates :api_url, public_url: true, allow_blank: true, if: :activated?
-  validates :token, presence: true, if: :activated?
-  validates :project_identifier_code, presence: true, if: :activated?
-
-  data_field :url, :api_url, :token, :closed_status_id, :project_identifier_code
-
-  def data_fields
-    open_project_tracker_data || self.build_open_project_tracker_data
-  end
-
-  def self.to_param
-    'open_project'
-  end
-end

app/models/project_services/redmine_service.rb

-# frozen_string_literal: true
-
-class RedmineService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def title
-    'Redmine'
-  end
-
-  def description
-    s_("IssueTracker|Use Redmine as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/redmine'), target: '_blank', rel: 'noopener noreferrer'
-    s_('IssueTracker|Use Redmine as the issue tracker. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'redmine'
-  end
-end

app/models/project_services/youtrack_service.rb

-# frozen_string_literal: true
-
-class YoutrackService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-
-  validates :project_url, :issues_url, presence: true, public_url: true, if: :activated?
-
-  # {PROJECT-KEY}-{NUMBER} Examples: YT-1, PRJ-1, gl-030
-  def self.reference_pattern(only_long: false)
-    if only_long
-      /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)/
-    else
-      /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)|(#{Issue.reference_prefix}#{Gitlab::Regex.issue})/
-    end
-  end
-
-  def title
-    'YouTrack'
-  end
-
-  def description
-    s_("IssueTracker|Use YouTrack as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/youtrack'), target: '_blank', rel: 'noopener noreferrer'
-    s_("IssueTracker|Use YouTrack as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'youtrack'
-  end
-
-  def fields
-    [
-      { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in YouTrack.'), required: true },
-      { type: 'text', name: 'issues_url', title: s_('ProjectService|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the YouTrack project. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true }
-    ]
-  end
-end

ee/app/models/ee/issue_tracker_service.rb → ee/app/models/ee/integrations/issue_tracker.rb

 # frozen_string_literal: true
 
 module EE
-  module IssueTrackerService
-    def create_cross_reference_note
-      # implement inside child
+  module Integrations
+    module IssueTracker
+      def create_cross_reference_note
+        # implement inside child
+      end
     end
   end
 end

lib/api/helpers/services_helpers.rb

@@ -777,16 +777,18 @@ module API
           ::Integrations::Asana,
           ::Integrations::Assembla,
           ::Integrations::Bamboo,
+          ::Integrations::Bugzilla,
           ::Integrations::Campfire,
           ::Integrations::Confluence,
+          ::Integrations::CustomIssueTracker,
           ::Integrations::Datadog,
           ::Integrations::EmailsOnPush,
-          ::BugzillaService,
+          ::Integrations::Ewm,
+          ::Integrations::Redmine,
+          ::Integrations::Youtrack,
           ::BuildkiteService,
-          ::CustomIssueTrackerService,
           ::DiscordService,
           ::DroneCiService,
-          ::EwmService,
           ::ExternalWikiService,
           ::FlowdockService,
           ::HangoutsChatService,
@@ -800,8 +802,6 @@ module API
           ::PivotaltrackerService,
           ::PrometheusService,
           ::PushoverService,
-          ::RedmineService,
-          ::YoutrackService,
           ::SlackService,
           ::MattermostService,
           ::MicrosoftTeamsService,

lib/gitlab/integrations/sti_type.rb

@@ -4,7 +4,8 @@ module Gitlab
   module Integrations
     class StiType < ActiveRecord::Type::String
       NAMESPACED_INTEGRATIONS = Set.new(%w(
-        Asana Assembla Bamboo Campfire Confluence Datadog EmailsOnPush
+        Asana Assembla Bamboo Bugzilla Campfire Confluence CustomIssueTracker Datadog
+        EmailsOnPush Ewm IssueTracker Redmine Youtrack
       )).freeze
 
       def cast(value)

spec/controllers/admin/services_controller_spec.rb

@@ -44,7 +44,7 @@ RSpec.describe Admin::ServicesController do
   describe "#update" do
     let(:project) { create(:project) }
     let!(:service_template) do
-      RedmineService.create!(
+      Integrations::Redmine.create!(
         project: nil,
         active: false,
         template: true,

spec/factories/integrations.rb

@@ -6,7 +6,7 @@ FactoryBot.define do
     type { 'Integration' }
   end
 
-  factory :custom_issue_tracker_service, class: 'CustomIssueTrackerService' do
+  factory :custom_issue_tracker_service, class: 'Integrations::CustomIssueTracker' do
     project
     active { true }
     issue_tracker
@@ -85,25 +85,25 @@ FactoryBot.define do
     confluence_url { 'https://example.atlassian.net/wiki' }
   end
 
-  factory :bugzilla_service do
+  factory :bugzilla_service, class: 'Integrations::Bugzilla' do
     project
     active { true }
     issue_tracker
   end
 
-  factory :redmine_service do
+  factory :redmine_service, class: 'Integrations::Redmine' do
     project
     active { true }
     issue_tracker
   end
 
-  factory :youtrack_service do
+  factory :youtrack_service, class: 'Integrations::Youtrack' do
     project
     active { true }
     issue_tracker
   end
 
-  factory :ewm_service do
+  factory :ewm_service, class: 'Integrations::Ewm' do
     project
     active { true }
     issue_tracker
@@ -134,7 +134,7 @@ FactoryBot.define do
     external_wiki_url { 'http://external-wiki-url.com' }
   end
 
-  factory :open_project_service do
+  factory :open_project_service, class: 'Integrations::OpenProject' do
     project
     active { true }
 
@@ -182,13 +182,13 @@ FactoryBot.define do
     create_data { false }
 
     after(:build) do
-      IssueTrackerService.skip_callback(:validation, :before, :handle_properties)
+      Integrations::IssueTracker.skip_callback(:validation, :before, :handle_properties)
     end
 
     to_create { |instance| instance.save!(validate: false) }
 
     after(:create) do
-      IssueTrackerService.set_callback(:validation, :before, :handle_properties)
+      Integrations::IssueTracker.set_callback(:validation, :before, :handle_properties)
     end
   end
 

spec/models/integration_spec.rb

@@ -159,7 +159,7 @@ RSpec.describe Integration do
       context 'when instance-level service' do
         Integration.available_services_types.each do |service_type|
           let(:service) do
-            service_type.constantize.new(instance: true)
+            described_class.send(:service_type_to_model, service_type).new(instance: true)
           end
 
           it { is_expected.to be_falsey }
@@ -169,7 +169,7 @@ RSpec.describe Integration do
       context 'when group-level service' do
         Integration.available_services_types.each do |service_type|
           let(:service) do
-            service_type.constantize.new(group_id: group.id)
+            described_class.send(:service_type_to_model, service_type).new(group_id: group.id)
           end
 
           it { is_expected.to be_falsey }
@@ -672,7 +672,7 @@ RSpec.describe Integration do
       expect(described_class.service_name_to_model('asana')).to eq(Integrations::Asana)
       # TODO We can remove this test when all models have been namespaced:
       # https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60968#note_570994955
-      expect(described_class.service_name_to_model('youtrack')).to eq(YoutrackService)
+      expect(described_class.service_name_to_model('webex_teams')).to eq(WebexTeamsService)
     end
 
     it 'raises an error if service name is invalid' do
@@ -802,7 +802,7 @@ RSpec.describe Integration do
 
   describe 'initialize service with no properties' do
     let(:service) do
-      BugzillaService.create!(
+      Integrations::Bugzilla.create!(
         project: project,
         project_url: 'http://gitlab.example.com'
       )

spec/models/project_services/bugzilla_service_spec.rb → spec/models/integrations/bugzilla_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe BugzillaService do
+RSpec.describe Integrations::Bugzilla do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }

spec/models/project_services/custom_issue_tracker_service_spec.rb → spec/models/integrations/custom_issue_tracker_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe CustomIssueTrackerService do
+RSpec.describe Integrations::CustomIssueTracker do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }

spec/models/project_services/ewm_service_spec.rb → spec/models/integrations/ewm_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe EwmService do
+RSpec.describe Integrations::Ewm do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }

spec/models/project_services/issue_tracker_service_spec.rb → spec/models/integrations/issue_tracker_spec.rb

@@ -2,12 +2,12 @@
 
 require 'spec_helper'
 
-RSpec.describe IssueTrackerService do
+RSpec.describe Integrations::IssueTracker do
   describe 'Validations' do
     let(:project) { create :project }
 
     describe 'only one issue tracker per project' do
-      let(:service) { RedmineService.new(project: project, active: true, issue_tracker_data: build(:issue_tracker_data)) }
+      let(:service) { Integrations::Redmine.new(project: project, active: true, issue_tracker_data: build(:issue_tracker_data)) }
 
       before do
         create(:custom_issue_tracker_service, project: project)

spec/models/project_services/open_project_service_spec.rb → spec/models/integrations/open_project_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe OpenProjectService do
+RSpec.describe Integrations::OpenProject do
   describe 'Validations' do
     context 'when service is active' do
       before do

spec/models/project_services/redmine_service_spec.rb → spec/models/integrations/redmine_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe RedmineService do
+RSpec.describe Integrations::Redmine do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }

spec/models/project_services/youtrack_service_spec.rb → spec/models/integrations/youtrack_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe YoutrackService do
+RSpec.describe Integrations::Youtrack do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }

spec/models/project_spec.rb

@@ -1086,7 +1086,7 @@ RSpec.describe Project, factory_default: :keep do
       project = create(:redmine_project)
 
       expect(project).to receive(:integrations).once.and_call_original
-      2.times { expect(project.external_issue_tracker).to be_a_kind_of(RedmineService) }
+      2.times { expect(project.external_issue_tracker).to be_a_kind_of(Integrations::Redmine) }
     end
   end
 

spec/views/projects/services/_form.haml_spec.rb

@@ -23,7 +23,7 @@ RSpec.describe 'projects/services/_form' do
     end
 
     it 'display merge_request_events and commit_events descriptions' do
-      allow(RedmineService).to receive(:supported_events).and_return(%w(commit merge_request))
+      allow(Integrations::Redmine).to receive(:supported_events).and_return(%w(commit merge_request))
 
       render