Add jobs field

Add jobs field to the
project type.

app/graphql/resolvers/project_jobs_resolver.rb

+# frozen_string_literal: true
+
+module Resolvers
+  class ProjectJobsResolver < BaseResolver
+    include LooksAhead
+
+    type ::Types::Ci::JobType.connection_type, null: true
+
+    alias_method :project, :object
+
+    argument :statuses, [::Types::Ci::JobStatusEnum],
+              required: false,
+              description: 'Filter jobs by status.'
+
+    def ready?(**args)
+      context[self.class] ||= { executions: 0 }
+      context[self.class][:executions] += 1
+      raise GraphQL::ExecutionError, "Jobs can only be requested for one project at a time" if context[self.class][:executions] > 1
+
+      super
+    end
+
+    def resolve_with_lookahead(statuses: nil)
+      jobs = ::Ci::JobsFinder.new(current_user: current_user, project: project, params: { scope: statuses }).execute
+
+      apply_lookahead(jobs)
+    end
+
+    private
+
+    def preloads
+      [
+        { artifacts: :job_artifacts },
+        { pipeline: :user }
+      ]
+    end
+  end
+end

app/graphql/types/project_type.rb

@@ -183,6 +183,14 @@ module Types
          description: 'Packages of the project.',
          resolver: Resolvers::ProjectPackagesResolver
 
+    field :jobs,
+         Types::Ci::JobType.connection_type,
+         null: true,
+         description: 'Jobs of a project, only jobs of a single project can be requested at a time.',
+         extras: [:lookahead],
+         resolver: Resolvers::ProjectJobsResolver,
+         authorize: :read_build
+
     field :pipelines,
           null: true,
           description: 'Build pipelines of the project.',

changelogs/unreleased/pb-add-jobs-field-to-project-type.yml

+---
+title: Add jobs field to the project type
+merge_request: 57376
+author:
+type: added

doc/api/graphql/reference/index.md

@@ -4771,6 +4771,7 @@ An edge in a connection.
 | `iterations` | [`IterationConnection`](#iterationconnection) | Find iterations. |
 | `jiraImportStatus` | [`String`](#string) | Status of Jira import background job of the project. |
 | `jiraImports` | [`JiraImportConnection`](#jiraimportconnection) | Jira imports into the project. |
+| `jobs` | [`CiJobConnection`](#cijobconnection) | Jobs of a project, only jobs of a single project can be requested at a time. |
 | `jobsEnabled` | [`Boolean`](#boolean) | Indicates if CI/CD pipeline jobs are enabled for the current user. |
 | `label` | [`Label`](#label) | A label available on this project. |
 | `labels` | [`LabelConnection`](#labelconnection) | Labels available on this project. |

spec/graphql/resolvers/project_jobs_resolver_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Resolvers::ProjectJobsResolver do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project, :repository, :public) }
+  let_it_be(:irrelevant_project) { create(:project, :repository, :public) }
+  let_it_be(:pipeline) { create(:ci_pipeline, project: project) }
+  let_it_be(:irrelevant_pipeline) { create(:ci_pipeline, project: irrelevant_project) }
+
+  let(:current_user) { create(:user) }
+  let(:build_one) { create(:ci_build, :success, name: 'Build One', pipeline: pipeline) }
+  let(:build_two) { create(:ci_build, :success, name: 'Build Two', pipeline: pipeline) }
+  let(:build_three) { create(:ci_build, :failed, name: 'Build Three', pipeline: pipeline) }
+  let(:irrelevant_build) { create(:ci_build, name: 'Irrelevant Build', pipeline: irrelevant_pipeline)}
+  let(:args) { {} }
+
+  subject { resolve_jobs(args) }
+
+  describe '#resolve' do
+    context 'with statuses argument' do
+      let(:args) { { statuses: [Types::Ci::JobStatusEnum.values['SUCCESS'].value] } }
+
+      it { is_expected.to contain_exactly(build_one, build_two) }
+    end
+
+    context 'without statuses argument' do
+      it { is_expected.to contain_exactly(build_one, build_two, build_three) }
+    end
+  end
+
+  private
+
+  def resolve_jobs(args = {}, context = { current_user: current_user })
+    resolve(described_class, obj: project, args: args, ctx: context)
+  end
+end

spec/graphql/types/project_type_spec.rb

@@ -371,4 +371,11 @@ RSpec.describe GitlabSchema.types['Project'] do
     it { is_expected.to have_graphql_type(Types::Ci::AnalyticsType) }
     it { is_expected.to have_graphql_resolver(Resolvers::ProjectPipelineStatisticsResolver) }
   end
+
+  describe 'jobs field' do
+    subject { described_class.fields['jobs'] }
+
+    it { is_expected.to have_graphql_type(Types::Ci::JobType.connection_type) }
+    it { is_expected.to have_graphql_arguments(:statuses) }
+  end
 end

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

@@ -16,7 +16,7 @@ RSpec.describe 'getting container repositories in a project' do
     <<~GQL
       edges {
         node {
-          #{all_graphql_fields_for('container_repositories'.classify, excluded: ['pipeline'])}
+          #{all_graphql_fields_for('container_repositories'.classify, excluded: %w(pipeline jobs))}
         }
       }
     GQL

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

@@ -9,7 +9,7 @@ RSpec.describe 'getting merge request information nested in a project' do
   let(:current_user) { create(:user) }
   let(:merge_request_graphql_data) { graphql_data['project']['mergeRequest'] }
   let!(:merge_request) { create(:merge_request, source_project: project) }
-  let(:mr_fields) { all_graphql_fields_for('MergeRequest', excluded: ['pipeline']) }
+  let(:mr_fields) { all_graphql_fields_for('MergeRequest', excluded: %w(pipeline jobs)) }
 
   let(:query) do
     graphql_query_for(