Add ci_config_path_or_default

app/graphql/types/project_type.rb

@@ -15,6 +15,8 @@ module Types
           description: 'Full path of the project.'
     field :path, GraphQL::Types::String, null: false,
           description: 'Path of the project.'
+    field :ci_config_path_or_default, GraphQL::Types::String, null: false,
+          description: 'Path of the CI configuration file.'
 
     field :sast_ci_configuration, Types::CiConfiguration::Sast::Type, null: true,
       calls_gitaly: true,

doc/api/graphql/reference/index.md

@@ -13409,6 +13409,7 @@ Represents vulnerability finding of a security report on the pipeline.
 | <a id="projectautoclosereferencedissues"></a>`autocloseReferencedIssues` | [`Boolean`](#boolean) | Indicates if issues referenced by merge requests and commits within the default branch are closed automatically. |
 | <a id="projectavatarurl"></a>`avatarUrl` | [`String`](#string) | URL to avatar image file of the project. |
 | <a id="projectcicdsettings"></a>`ciCdSettings` | [`ProjectCiCdSetting`](#projectcicdsetting) | CI/CD settings for the project. |
+| <a id="projectciconfigpathordefault"></a>`ciConfigPathOrDefault` | [`String!`](#string) | Path of the CI configuration file. |
 | <a id="projectcijobtokenscope"></a>`ciJobTokenScope` | [`CiJobTokenScopeType`](#cijobtokenscopetype) | The CI Job Tokens scope of access. |
 | <a id="projectclusteragents"></a>`clusterAgents` | [`ClusterAgentConnection`](#clusteragentconnection) | Cluster agents associated with the project. (see [Connections](#connections)) |
 | <a id="projectcodecoveragesummary"></a>`codeCoverageSummary` | [`CodeCoverageSummary`](#codecoveragesummary) | Code coverage summary associated with the project. |

spec/graphql/types/project_type_spec.rb

@@ -35,7 +35,7 @@ RSpec.describe GitlabSchema.types['Project'] do
       pipeline_analytics squash_read_only sast_ci_configuration
       cluster_agent cluster_agents agent_configurations
       ci_template timelogs merge_commit_template squash_commit_template work_item_types
-      recent_issue_boards
+      recent_issue_boards ci_config_path_or_default
     ]
 
     expect(described_class).to include_graphql_fields(*expected_fields)