Add `ref_path` to PipelineType

Changelog: added
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/72591

app/graphql/types/ci/pipeline_type.rb

@@ -18,8 +18,14 @@ module Types
       field :iid, GraphQL::Types::String, null: false,
             description: 'Internal ID of the pipeline.'
 
-      field :sha, GraphQL::Types::String, null: false,
-            description: "SHA of the pipeline's commit."
+      field :sha, GraphQL::Types::String, null: true,
+            method: :sha,
+            description: "SHA of the pipeline's commit." do
+        argument :format,
+                 type: Types::ShaFormatEnum,
+                 required: false,
+                 description: 'Format of the SHA.'
+      end
 
       field :before_sha, GraphQL::Types::String, null: true,
             description: 'Base SHA of the source branch.'
@@ -162,6 +168,10 @@ module Types
       field :ref, GraphQL::Types::String, null: true,
             description: 'Reference to the branch from which the pipeline was triggered.'
 
+      field :ref_path, GraphQL::Types::String, null: true,
+            description: 'Reference path to the branch from which the pipeline was triggered.',
+            method: :source_ref_path
+
       def detailed_status
         object.detailed_status(current_user)
       end
@@ -189,6 +199,12 @@ module Types
         end.take # rubocop: disable CodeReuse/ActiveRecord
       end
 
+      def sha(format: Types::ShaFormatEnum.enum[:long])
+        return pipeline.short_sha if format == Types::ShaFormatEnum.enum[:short]
+
+        pipeline.sha
+      end
+
       alias_method :pipeline, :object
     end
   end

app/graphql/types/sha_format_enum.rb

+# frozen_string_literal: true
+
+module Types
+  class ShaFormatEnum < BaseEnum
+    graphql_name 'ShaFormat'
+    description 'How to format SHA strings.'
+
+    FORMATS_DESCRIPTION = {
+      short: 'Abbreviated format. Short SHAs are typically eight characters long.',
+      long: 'Unabbreviated format.'
+    }.freeze
+
+    FORMATS_DESCRIPTION.each do |format, description|
+      value format.to_s.upcase,
+            description: description,
+            value: format.to_s
+    end
+  end
+end

doc/api/graphql/reference/index.md

@@ -12833,9 +12833,9 @@ Represents a file or directory in the project repository that has been locked.
 | <a id="pipelineproject"></a>`project` | [`Project`](#project) | Project the pipeline belongs to. |
 | <a id="pipelinequeuedduration"></a>`queuedDuration` | [`Duration`](#duration) | How long the pipeline was queued before starting. |
 | <a id="pipelineref"></a>`ref` | [`String`](#string) | Reference to the branch from which the pipeline was triggered. |
+| <a id="pipelinerefpath"></a>`refPath` | [`String`](#string) | Reference path to the branch from which the pipeline was triggered. |
 | <a id="pipelineretryable"></a>`retryable` | [`Boolean!`](#boolean) | Specifies if a pipeline can be retried. |
 | <a id="pipelinesecurityreportsummary"></a>`securityReportSummary` | [`SecurityReportSummary`](#securityreportsummary) | Vulnerability and scanned resource counts for each security scanner of the pipeline. |
-| <a id="pipelinesha"></a>`sha` | [`String!`](#string) | SHA of the pipeline's commit. |
 | <a id="pipelinesourcejob"></a>`sourceJob` | [`CiJob`](#cijob) | Job where pipeline was triggered from. |
 | <a id="pipelinestages"></a>`stages` | [`CiStageConnection`](#cistageconnection) | Stages of the pipeline. (see [Connections](#connections)) |
 | <a id="pipelinestartedat"></a>`startedAt` | [`Time`](#time) | Timestamp when the pipeline was started. |
@@ -12899,6 +12899,18 @@ four standard [pagination arguments](#connection-pagination-arguments):
 | <a id="pipelinesecurityreportfindingsseverity"></a>`severity` | [`[String!]`](#string) | Filter vulnerability findings by severity. |
 | <a id="pipelinesecurityreportfindingsstate"></a>`state` | [`[VulnerabilityState!]`](#vulnerabilitystate) | Filter vulnerability findings by state. |
 
+##### `Pipeline.sha`
+
+SHA of the pipeline's commit.
+
+Returns [`String`](#string).
+
+###### Arguments
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| <a id="pipelineshaformat"></a>`format` | [`ShaFormat`](#shaformat) | Format of the SHA. |
+
 ##### `Pipeline.testSuite`
 
 A specific test suite in a pipeline test report.
@@ -17233,6 +17245,15 @@ State of a Sentry error.
 | <a id="servicetypeyoutrack_service"></a>`YOUTRACK_SERVICE` | YoutrackService type. |
 | <a id="servicetypezentao_service"></a>`ZENTAO_SERVICE` | ZentaoService type. |
 
+### `ShaFormat`
+
+How to format SHA strings.
+
+| Value | Description |
+| ----- | ----------- |
+| <a id="shaformatlong"></a>`LONG` | Unabbreviated format. |
+| <a id="shaformatshort"></a>`SHORT` | Abbreviated format. Short SHAs are typically eight characters long. |
+
 ### `SharedRunnersSetting`
 
 | Value | Description |

spec/graphql/types/ci/pipeline_type_spec.rb

@@ -14,7 +14,7 @@ RSpec.describe Types::Ci::PipelineType do
       coverage created_at updated_at started_at finished_at committed_at
       stages user retryable cancelable jobs source_job job job_artifacts downstream
       upstream path project active user_permissions warnings commit commit_path uses_needs
-      test_report_summary test_suite ref
+      test_report_summary test_suite ref ref_path
     ]
 
     if Gitlab.ee?

spec/requests/api/graphql/ci/pipelines_spec.rb

@@ -12,6 +12,38 @@ RSpec.describe 'Query.project(fullPath).pipelines' do
     travel_to(Time.current) { example.run }
   end
 
+  describe 'sha' do
+    let_it_be(:pipeline) { create(:ci_pipeline, project: project) }
+
+    let(:pipelines_graphql_data) { graphql_data.dig(*%w[project pipelines nodes]).first }
+
+    let(:query) do
+      %(
+        query {
+          project(fullPath: "#{project.full_path}") {
+            pipelines {
+              nodes {
+                fullSha: sha
+                shortSha: sha(format: SHORT)
+                alsoFull: sha(format: LONG)
+              }
+            }
+          }
+        }
+      )
+    end
+
+    it 'returns all formats of the SHA' do
+      post_graphql(query, current_user: user)
+
+      expect(pipelines_graphql_data).to include(
+        'fullSha' => eq(pipeline.sha),
+        'alsoFull' => eq(pipeline.sha),
+        'shortSha' => eq(pipeline.short_sha)
+      )
+    end
+  end
+
   describe 'duration fields' do
     let_it_be(:pipeline) do
       create(:ci_pipeline, project: project)
@@ -420,4 +452,36 @@ RSpec.describe 'Query.project(fullPath).pipelines' do
       end
     end
   end
+
+  describe 'ref_path' do
+    let_it_be(:merge_request) { create(:merge_request, source_project: project) }
+    let_it_be(:pipeline_1) { create(:ci_pipeline, project: project, user: user, merge_request: merge_request) }
+    let_it_be(:pipeline_2) { create(:ci_pipeline, project: project, user: user, merge_request: merge_request) }
+
+    let(:query) do
+      %(
+        query {
+          project(fullPath: "#{project.full_path}") {
+            pipelines {
+              nodes {
+                refPath
+              }
+            }
+          }
+        }
+      )
+    end
+
+    it 'avoids N+1 queries' do
+      control_count = ActiveRecord::QueryRecorder.new do
+        post_graphql(query, current_user: user)
+      end
+
+      create(:ci_pipeline, project: project, user: user, merge_request: merge_request)
+
+      expect do
+        post_graphql(query, current_user: user)
+      end.not_to exceed_query_limit(control_count)
+    end
+  end
 end