Add Epics to search

app/controllers/search_controller.rb

@@ -36,6 +36,7 @@ class SearchController < ApplicationController
     @scope = search_service.scope
     @show_snippets = search_service.show_snippets?
+    @show_epics = search_service.show_epics?
     @search_results = search_service.search_results
     @search_objects = search_service.search_objects(preload_method)

app/helpers/projects_helper.rb

@@ -493,7 +493,8 @@ module ProjectsHelper
       commits:        :download_code,
       merge_requests: :read_merge_request,
       notes:          [:read_merge_request, :download_code, :read_issue, :read_snippet],
-      members:        :read_project_member
+      members:        :read_project_member,
+      epics:          :read_epic
     )
   end

app/helpers/search_helper.rb

@@ -66,6 +66,8 @@ module SearchHelper
       ns_('SearchResults|user', 'SearchResults|users', count)
     when 'wiki_blobs'
       ns_('SearchResults|wiki result', 'SearchResults|wiki results', count)
+    when 'epics'
+      ns_('SearchResults|epic', 'SearchResults|epics', count)
     else
       raise "Unrecognized search scope '#{scope}'"
     end

app/services/search/global_service.rb

@@ -25,6 +25,7 @@ module Search
       strong_memoize(:allowed_scopes) do
         allowed_scopes = %w[issues merge_requests milestones]
         allowed_scopes << 'users' if Feature.enabled?(:users_search, default_enabled: true)
+        allowed_scopes
       end
     end

app/services/search_service.rb

@@ -47,6 +47,11 @@ class SearchService
     @show_snippets = params[:snippets] == 'true'
   end
+  # overriden in EE
+  def show_epics?
+    false
+  end
+
   def valid_query_length?
     params[:search].length <= SEARCH_CHAR_LIMIT
   end

app/views/search/_category.html.haml

@@ -30,5 +30,7 @@
       = search_filter_link 'issues', _("Issues")
       = search_filter_link 'merge_requests', _("Merge requests")
       = search_filter_link 'milestones', _("Milestones")
+      - if @show_epics
+        = search_filter_link 'epics', _("Epics")
       = render_if_exists 'search/category_elasticsearch'
       = users

app/views/search/results/_epic.html.haml

+%div{ class: 'search-result-row gl-pb-3! gl-mt-5 gl-mb-0!' }
+  %span.gl-display-flex.gl-align-items-center
+    - if epic.closed?
+      %span.badge.badge-info.badge-pill.gl-badge.sm= _("Closed")
+    - else
+      %span.badge.badge-success.badge-pill.gl-badge.sm= _("Open")
+    = sprite_icon('eye-slash', css_class: 'gl-text-gray-500 gl-ml-2') if epic.confidential?
+    = link_to group_epic_path(epic.group, epic), data: { track_event: 'click_text', track_label: 'epic_title', track_property: 'search_result' }, class: 'gl-w-full' do
+      %span.term.str-truncated.gl-font-weight-bold.gl-ml-2= epic.title
+  .gl-text-gray-500.gl-my-3
+    = sprintf(s_(' %{group_name}&%{epic_iid} · opened %{epic_created} by %{author}'), { group_name: epic.group.full_name, epic_iid: epic.iid, epic_created: time_ago_with_tooltip(epic.created_at, placement: 'bottom'), author: link_to_member(@project, epic.author, avatar: false) }).html_safe
+  - if epic.description.present?
+    .description.term.col-sm-10.gl-px-0
+      = truncate(epic.description, length: 200)

config/feature_flags/development/epics_search.yml

+---
+name: epics_search
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/42456
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/250317
+group: group::global search
+type: development
+default_enabled: false
\ No newline at end of file

ee/app/helpers/ee/search_helper.rb

@@ -3,7 +3,7 @@ module EE
   module SearchHelper
     extend ::Gitlab::Utils::Override
-    SWITCH_TO_BASIC_SEARCHABLE_TABS = %w[projects issues merge_requests milestones users].freeze
+    SWITCH_TO_BASIC_SEARCHABLE_TABS = %w[projects issues merge_requests milestones users epics].freeze
     override :search_filter_input_options
     def search_filter_input_options(type, placeholder = _('Search or filter results...'))

ee/app/models/ee/epic.rb

@@ -228,6 +228,10 @@ module EE
         items.where("epic_issues.epic_id": ids)
       end
+
+      def search(query)
+        fuzzy_search(query, [:title, :description])
+      end
     end
     def resource_parent

ee/app/services/ee/search/global_service.rb

@@ -30,14 +30,21 @@ module EE
       override :allowed_scopes
       def allowed_scopes
-        return super unless use_elasticsearch?
+        return add_epics_scope(super) unless use_elasticsearch?
         strong_memoize(:ee_allowed_scopes) do
           super.tap do |ce_scopes|
-            ce_scopes.concat(%w[notes wiki_blobs blobs commits])
+            add_epics_scope ce_scopes.concat(%w[notes wiki_blobs blobs commits])
           end
         end
       end
+
+      private
+
+      def add_epics_scope(allowed)
+        allowed << 'epics' if ::Feature.enabled?(:epics_search) && ::License.feature_available?(:epics)
+        allowed
+      end
     end
   end
 end

ee/app/services/ee/search_service.rb

@@ -19,5 +19,12 @@ module EE
       super
     end
+
+    def show_epics?
+      return false unless ::Feature.enabled?(:epics_search)
+      return false unless ::License.feature_available?(:epics)
+
+      true
+    end
   end
 end

ee/lib/ee/gitlab/group_search_results.rb

+# frozen_string_literal: true
+
+module EE
+  module Gitlab
+    module GroupSearchResults
+      extend ::Gitlab::Utils::Override
+
+      override :epics
+      def epics
+        EpicsFinder.new(current_user, issuable_params).execute.search(query)
+      end
+    end
+  end
+end

ee/lib/ee/gitlab/search_results.rb

@@ -5,12 +5,47 @@ module EE
     module SearchResults
       extend ::Gitlab::Utils::Override
+      override :formatted_count
+      def formatted_count(scope)
+        count = super
+
+        return count if count
+
+        case scope
+        when 'epics'
+          formatted_limited_count(limited_epics_count)
+        end
+      end
+
+      override :epics
+      def epics
+        groups_finder = GroupsFinder.new(current_user)
+
+        ::Epic.in_selected_groups(groups_finder.execute).search(query)
+      end
+
       private
       override :projects
       def projects
         super.with_compliance_framework_settings
       end
+
+      override :collection_for
+      def collection_for(scope)
+        collection = super
+
+        return collection if collection
+
+        case scope
+        when 'epics'
+          epics
+        end
+      end
+
+      def limited_epics_count
+        @limited_epics_count ||= limited_count(epics)
+      end
     end
   end
 end

ee/lib/gitlab/elastic/group_search_results.rb

@@ -8,6 +8,8 @@ module Gitlab
     class GroupSearchResults < Gitlab::Elastic::SearchResults
       delegate :users, to: :generic_search_results
       delegate :limited_users_count, to: :generic_search_results
+      delegate :epics, to: :generic_search_results
+      delegate :limited_epics_count, to: :generic_search_results
       attr_reader :group, :default_project_filter, :filters

ee/lib/gitlab/elastic/search_results.rb

@@ -15,6 +15,8 @@ module Gitlab
       delegate :users, to: :generic_search_results
       delegate :limited_users_count, to: :generic_search_results
+      delegate :epics, to: :generic_search_results
+      delegate :limited_epics_count, to: :generic_search_results
       def initialize(current_user, query, limit_projects = nil, public_and_internal_projects: true, filters: {})
         @current_user = current_user
@@ -46,6 +48,8 @@ module Gitlab
           commits(page: page, per_page: per_page, preload_method: preload_method)
         when 'users'
           users.page(page).per(per_page)
+        when 'epics'
+          epics.page(page).per(per_page)
         else
           Kaminari.paginate_array([])
         end
@@ -75,6 +79,8 @@ module Gitlab
           milestones_count.to_s
         when 'users'
           generic_search_results.formatted_count('users')
+        when 'epics'
+          generic_search_results.formatted_count('epics')
         end
       end

lib/gitlab/group_search_results.rb

@@ -38,3 +38,5 @@ module Gitlab
     end
   end
 end
+
+Gitlab::SearchResults.prepend_if_ee('EE::Gitlab::GroupSearchResults')

lib/gitlab/search_results.rb

@@ -29,21 +29,12 @@ module Gitlab
     def objects(scope, page: nil, per_page: DEFAULT_PER_PAGE, without_count: true, preload_method: nil)
       should_preload = preload_method.present?
-      collection = case scope
-                   when 'projects'
-                     projects
-                   when 'issues'
-                     issues
-                   when 'merge_requests'
-                     merge_requests
-                   when 'milestones'
-                     milestones
-                   when 'users'
-                     users
-                   else
-                     should_preload = false
-                     Kaminari.paginate_array([])
-                   end
+      collection = collection_for(scope)
+
+      if collection.nil?
+        should_preload = false
+        collection = Kaminari.paginate_array([])
+      end
       collection = collection.public_send(preload_method) if should_preload # rubocop:disable GitlabSecurity/PublicSend
       collection = collection.page(page).per(per_page)
@@ -118,6 +109,21 @@ module Gitlab
     private
+    def collection_for(scope)
+      case scope
+      when 'projects'
+        projects
+      when 'issues'
+        issues
+      when 'merge_requests'
+        merge_requests
+      when 'milestones'
+        milestones
+      when 'users'
+        users
+      end
+    end
+
     def projects
       limit_projects.search(query)
     end