Add Evidence to Releases GraphQL endpoint

Part of https://gitlab.com/gitlab-org/gitlab/-/issues/217816

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/33254

app/graphql/types/evidence_type.rb

+# frozen_string_literal: true
+
+module Types
+  class EvidenceType < BaseObject
+    graphql_name 'ReleaseEvidence'
+    description 'Evidence for a release'
+
+    authorize :download_code
+
+    present_using Releases::EvidencePresenter
+
+    field :id, GraphQL::ID_TYPE, null: false,
+          description: 'ID of the evidence'
+    field :sha, GraphQL::STRING_TYPE, null: true,
+          description: 'SHA1 ID of the evidence hash'
+    field :filepath, GraphQL::STRING_TYPE, null: true,
+          description: 'URL from where the evidence can be downloaded'
+    field :collected_at, Types::TimeType, null: true,
+          description: 'Timestamp when the evidence was collected'
+  end
+end

app/graphql/types/release_type.rb

@@ -27,6 +27,8 @@ module Types
           description: 'Assets of the release'
     field :milestones, Types::MilestoneType.connection_type, null: true,
           description: 'Milestones associated to the release'
+    field :evidences, Types::EvidenceType.connection_type, null: true,
+          description: 'Evidence for the release'
 
     field :author, Types::UserType, null: true,
           description: 'User that created the release'

app/models/releases/evidence.rb

 # frozen_string_literal: true
 
-class Releases::Evidence < ApplicationRecord
+module Releases
+  class Evidence < ApplicationRecord
     include ShaAttribute
     include Presentable
 
@@ -10,6 +11,7 @@ class Releases::Evidence < ApplicationRecord
 
     sha_attribute :summary_sha
     alias_attribute :collected_at, :created_at
+    alias_attribute :sha, :summary_sha
 
     def milestones
       @milestones ||= release.milestones.includes(:issues)
@@ -29,4 +31,5 @@ class Releases::Evidence < ApplicationRecord
 
       safe_summary
     end
+  end
 end

changelogs/unreleased/217816-add-evidence-to-releases-graphql-endpoint.yml

+---
+title: Add Evidence to Releases GraphQL endpoint
+merge_request: 33254
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -9971,6 +9971,31 @@ type Release {
   """
   descriptionHtml: String
 
+  """
+  Evidence for the release
+  """
+  evidences(
+    """
+    Returns the elements in the list that come after the specified cursor.
+    """
+    after: String
+
+    """
+    Returns the elements in the list that come before the specified cursor.
+    """
+    before: String
+
+    """
+    Returns the first _n_ elements from the list.
+    """
+    first: Int
+
+    """
+    Returns the last _n_ elements from the list.
+    """
+    last: Int
+  ): ReleaseEvidenceConnection
+
   """
   Milestones associated to the release
   """
@@ -10109,6 +10134,66 @@ type ReleaseEdge {
   node: Release
 }
 
+"""
+Evidence for a release
+"""
+type ReleaseEvidence {
+  """
+  Timestamp when the evidence was collected
+  """
+  collectedAt: Time
+
+  """
+  URL from where the evidence can be downloaded
+  """
+  filepath: String
+
+  """
+  ID of the evidence
+  """
+  id: ID!
+
+  """
+  SHA1 ID of the evidence hash
+  """
+  sha: String
+}
+
+"""
+The connection type for ReleaseEvidence.
+"""
+type ReleaseEvidenceConnection {
+  """
+  A list of edges.
+  """
+  edges: [ReleaseEvidenceEdge]
+
+  """
+  A list of nodes.
+  """
+  nodes: [ReleaseEvidence]
+
+  """
+  Information to aid in pagination.
+  """
+  pageInfo: PageInfo!
+}
+
+"""
+An edge in a connection.
+"""
+type ReleaseEvidenceEdge {
+  """
+  A cursor for use in pagination.
+  """
+  cursor: String!
+
+  """
+  The item at the end of the edge.
+  """
+  node: ReleaseEvidence
+}
+
 type ReleaseLink {
   """
   Indicates the link points to an external resource

doc/api/graphql/reference/gitlab_schema.json

@@ -29243,6 +29243,59 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "evidences",
+              "description": "Evidence for the release",
+              "args": [
+                {
+                  "name": "after",
+                  "description": "Returns the elements in the list that come after the specified cursor.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "before",
+                  "description": "Returns the elements in the list that come before the specified cursor.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "first",
+                  "description": "Returns the first _n_ elements from the list.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "Int",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
+                {
+                  "name": "last",
+                  "description": "Returns the last _n_ elements from the list.",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "Int",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                }
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "ReleaseEvidenceConnection",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "milestones",
               "description": "Milestones associated to the release",
@@ -29609,6 +29662,191 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "OBJECT",
+          "name": "ReleaseEvidence",
+          "description": "Evidence for a release",
+          "fields": [
+            {
+              "name": "collectedAt",
+              "description": "Timestamp when the evidence was collected",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Time",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "filepath",
+              "description": "URL from where the evidence can be downloaded",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "id",
+              "description": "ID of the evidence",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "ID",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "sha",
+              "description": "SHA1 ID of the evidence hash",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "ReleaseEvidenceConnection",
+          "description": "The connection type for ReleaseEvidence.",
+          "fields": [
+            {
+              "name": "edges",
+              "description": "A list of edges.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "OBJECT",
+                  "name": "ReleaseEvidenceEdge",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "nodes",
+              "description": "A list of nodes.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "OBJECT",
+                  "name": "ReleaseEvidence",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "pageInfo",
+              "description": "Information to aid in pagination.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "OBJECT",
+                  "name": "PageInfo",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "ReleaseEvidenceEdge",
+          "description": "An edge in a connection.",
+          "fields": [
+            {
+              "name": "cursor",
+              "description": "A cursor for use in pagination.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "node",
+              "description": "The item at the end of the edge.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "ReleaseEvidence",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "OBJECT",
           "name": "ReleaseLink",

doc/api/graphql/reference/index.md

@@ -1406,6 +1406,17 @@ Represents a Project Member
 | ---   |  ---- | ----------  |
 | `assetsCount` | Int | Number of assets of the release |
 
+## ReleaseEvidence
+
+Evidence for a release
+
+| Name  | Type  | Description |
+| ---   |  ---- | ----------  |
+| `collectedAt` | Time | Timestamp when the evidence was collected |
+| `filepath` | String | URL from where the evidence can be downloaded |
+| `id` | ID! | ID of the evidence |
+| `sha` | String | SHA1 ID of the evidence hash |
+
 ## ReleaseLink
 
 | Name  | Type  | Description |

lib/api/entities/releases/evidence.rb

@@ -6,7 +6,7 @@ module API
       class Evidence < Grape::Entity
         include ::API::Helpers::Presentable
 
-        expose :summary_sha, as: :sha
+        expose :sha
         expose :filepath
         expose :collected_at
       end

spec/factories/evidences.rb

@@ -3,5 +3,7 @@
 FactoryBot.define do
   factory :evidence, class: 'Releases::Evidence' do
     release
+    summary_sha { "760d6cdfb0879c3ffedec13af470e0f71cf52c6cde4d" }
+    summary { { "release": { "tag": "v4.0", "name": "New release", "project_name": "Project name" } } }
   end
 end

spec/graphql/types/evidence_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['ReleaseEvidence'] do
+  it { expect(described_class).to require_graphql_authorizations(:download_code) }
+
+  it 'has the expected fields' do
+    expected_fields = %w[
+      id sha filepath collected_at
+    ]
+
+    expect(described_class).to include_graphql_fields(*expected_fields)
+  end
+end

spec/graphql/types/release_type_spec.rb

@@ -9,7 +9,7 @@ describe GitlabSchema.types['Release'] do
     expected_fields = %w[
       tag_name tag_path
       description description_html
-      name assets milestones author commit
+      name assets milestones evidences author commit
       created_at released_at
     ]
 
@@ -28,6 +28,12 @@ describe GitlabSchema.types['Release'] do
     it { is_expected.to have_graphql_type(Types::MilestoneType.connection_type) }
   end
 
+  describe 'evidences field' do
+    subject { described_class.fields['evidences'] }
+
+    it { is_expected.to have_graphql_type(Types::EvidenceType.connection_type) }
+  end
+
   describe 'author field' do
     subject { described_class.fields['author'] }
 

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

@@ -5,11 +5,12 @@ require 'pp'
 
 describe 'Query.project(fullPath).release(tagName)' do
   include GraphqlHelpers
+  include Presentable
 
   let_it_be(:project) { create(:project, :repository) }
   let_it_be(:milestone_1) { create(:milestone, project: project) }
   let_it_be(:milestone_2) { create(:milestone, project: project) }
-  let_it_be(:release) { create(:release, project: project, milestones: [milestone_1, milestone_2]) }
+  let_it_be(:release) { create(:release, :with_evidence, project: project, milestones: [milestone_1, milestone_2]) }
   let_it_be(:release_link_1) { create(:release_link, release: release) }
   let_it_be(:release_link_2) { create(:release_link, release: release) }
   let_it_be(:developer) { create(:user) }
@@ -164,5 +165,42 @@ describe 'Query.project(fullPath).release(tagName)' do
         expect(data).to match_array(expected)
       end
     end
+
+    describe 'evidences' do
+      let(:path) { path_prefix + %w[evidences] }
+      let(:release_fields) do
+        query_graphql_field(:evidences, nil, 'nodes { id sha filepath collectedAt }')
+      end
+
+      context 'for a developer' do
+        it 'finds all evidence fields' do
+          post_query
+
+          evidence = release.evidences.first.present
+          expected = {
+            'id' => global_id_of(evidence),
+            'sha' => evidence.sha,
+            'filepath' => evidence.filepath,
+            'collectedAt' => evidence.collected_at.utc.iso8601
+          }
+
+          expect(data["nodes"].first).to eq(expected)
+        end
+      end
+
+      context 'for a guest' do
+        let(:current_user) { create :user }
+
+        before do
+          project.add_guest(current_user)
+        end
+
+        it 'denies access' do
+          post_query
+
+          expect(data['node']).to be_nil
+        end
+      end
+    end
   end
 end