Add ability to sort releases from GraphQL

This commit updates our GraphQL endpiont to allow releases to be
sorted by released_at or created_at.

app/graphql/resolvers/releases_resolver.rb

@@ -4,6 +4,10 @@ module Resolvers
   class ReleasesResolver < BaseResolver
     type Types::ReleaseType.connection_type, null: true
 
+    argument :sort, Types::ReleaseSortEnum,
+             required: false, default_value: :released_at_desc,
+             description: 'Sort releases by this criteria'
+
     alias_method :project, :object
 
     # This resolver has a custom singular resolver
@@ -11,12 +15,20 @@ module Resolvers
       Resolvers::ReleaseResolver
     end
 
-    def resolve(**args)
+    SORT_TO_PARAMS_MAP = {
+      released_at_desc: { order_by: 'released_at', sort: 'desc' },
+      released_at_asc: { order_by: 'released_at', sort: 'asc' },
+      created_desc: { order_by: 'created_at', sort: 'desc' },
+      created_asc: { order_by: 'created_at', sort: 'asc' }
+    }.freeze
+
+    def resolve(sort:)
       return unless Feature.enabled?(:graphql_release_data, project, default_enabled: true)
 
       ReleasesFinder.new(
         project,
-        current_user
+        current_user,
+        SORT_TO_PARAMS_MAP[sort]
       ).execute
     end
   end

app/graphql/types/release_sort_enum.rb

+# frozen_string_literal: true
+
+module Types
+  # Not inheriting from Types::SortEnum since we only want
+  # to implement a subset of the sort values it defines.
+  class ReleaseSortEnum < BaseEnum
+    graphql_name 'ReleaseSort'
+    description 'Values for sorting releases'
+
+    # Borrowed from Types::SortEnum
+    # These values/descriptions should stay in-sync as much as possible.
+    value 'CREATED_DESC', 'Created at descending order', value: :created_desc
+    value 'CREATED_ASC', 'Created at ascending order', value: :created_asc
+
+    value 'RELEASED_AT_DESC', 'Released at by descending order', value: :released_at_desc
+    value 'RELEASED_AT_ASC', 'Released at by ascending order', value: :released_at_asc
+  end
+end

changelogs/unreleased/nfriend-add-graphql-release-sorting.yml

+---
+title: Allow sorting of releases from GraphQL
+merge_request: 45577
+author:
+type: added

doc/api/graphql/reference/gitlab_schema.graphql

@@ -14745,6 +14745,11 @@ type Project {
     Returns the last _n_ elements from the list.
     """
     last: Int
+
+    """
+    Sort releases by this criteria
+    """
+    sort: ReleaseSort = RELEASED_AT_DESC
   ): ReleaseConnection
 
   """
@@ -16519,6 +16524,31 @@ type ReleaseLinks {
   selfUrl: String
 }
 
+"""
+Values for sorting releases
+"""
+enum ReleaseSort {
+  """
+  Created at ascending order
+  """
+  CREATED_ASC
+
+  """
+  Created at descending order
+  """
+  CREATED_DESC
+
+  """
+  Released at by ascending order
+  """
+  RELEASED_AT_ASC
+
+  """
+  Released at by descending order
+  """
+  RELEASED_AT_DESC
+}
+
 """
 Represents the source code attached to a release in a particular format
 """

doc/api/graphql/reference/gitlab_schema.json

@@ -42602,6 +42602,16 @@
               "name": "releases",
               "description": "Releases of the project",
               "args": [
+                {
+                  "name": "sort",
+                  "description": "Sort releases by this criteria",
+                  "type": {
+                    "kind": "ENUM",
+                    "name": "ReleaseSort",
+                    "ofType": null
+                  },
+                  "defaultValue": "RELEASED_AT_DESC"
+                },
                 {
                   "name": "after",
                   "description": "Returns the elements in the list that come after the specified cursor.",
@@ -47517,6 +47527,41 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "ENUM",
+          "name": "ReleaseSort",
+          "description": "Values for sorting releases",
+          "fields": null,
+          "inputFields": null,
+          "interfaces": null,
+          "enumValues": [
+            {
+              "name": "CREATED_DESC",
+              "description": "Created at descending order",
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "CREATED_ASC",
+              "description": "Created at ascending order",
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "RELEASED_AT_DESC",
+              "description": "Released at by descending order",
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "RELEASED_AT_ASC",
+              "description": "Released at by ascending order",
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "possibleTypes": null
+        },
         {
           "kind": "OBJECT",
           "name": "ReleaseSource",

doc/api/graphql/reference/index.md

@@ -3643,6 +3643,17 @@ Type of the link: `other`, `runbook`, `image`, `package`; defaults to `other`.
 | `PACKAGE` | Package link type |
 | `RUNBOOK` | Runbook link type |
 
+### ReleaseSort
+
+Values for sorting releases.
+
+| Value | Description |
+| ----- | ----------- |
+| `CREATED_ASC` | Created at ascending order |
+| `CREATED_DESC` | Created at descending order |
+| `RELEASED_AT_ASC` | Released at by ascending order |
+| `RELEASED_AT_DESC` | Released at by descending order |
+
 ### RequirementState
 
 State of a requirement.

spec/graphql/resolvers/releases_resolver_spec.rb

@@ -5,12 +5,19 @@ require 'spec_helper'
 RSpec.describe Resolvers::ReleasesResolver do
   include GraphqlHelpers
 
+  let_it_be(:today) { Time.now }
+  let_it_be(:yesterday) { today - 1.day }
+  let_it_be(:tomorrow) { today + 1.day }
+
   let_it_be(:project) { create(:project, :private) }
-  let_it_be(:release_v1) { create(:release, project: project, tag: 'v1.0.0') }
-  let_it_be(:release_v2) { create(:release, project: project, tag: 'v2.0.0') }
+  let_it_be(:release_v1) { create(:release, project: project, tag: 'v1.0.0', released_at: yesterday, created_at: tomorrow) }
+  let_it_be(:release_v2) { create(:release, project: project, tag: 'v2.0.0', released_at: today,     created_at: yesterday) }
+  let_it_be(:release_v3) { create(:release, project: project, tag: 'v3.0.0', released_at: tomorrow,  created_at: today) }
   let_it_be(:developer) { create(:user) }
   let_it_be(:public_user) { create(:user) }
 
+  let(:args) { { sort: :released_at_desc } }
+
   before do
     project.add_developer(developer)
   end
@@ -28,7 +35,41 @@ RSpec.describe Resolvers::ReleasesResolver do
       let(:current_user) { developer }
 
       it 'returns all releases associated to the project' do
-        expect(resolve_releases).to eq([release_v1, release_v2])
+        expect(resolve_releases).to eq([release_v3, release_v2, release_v1])
+      end
+
+      describe 'sorting behavior' do
+        context 'with sort: :released_at_desc' do
+          let(:args) { { sort: :released_at_desc } }
+
+          it 'returns the releases ordered by released_at in descending order' do
+            expect(resolve_releases).to eq([release_v3, release_v2, release_v1])
+          end
+        end
+
+        context 'with sort: :released_at_asc' do
+          let(:args) { { sort: :released_at_asc } }
+
+          it 'returns the releases ordered by released_at in ascending order' do
+            expect(resolve_releases).to eq([release_v1, release_v2, release_v3])
+          end
+        end
+
+        context 'with sort: :created_desc' do
+          let(:args) { { sort: :created_desc } }
+
+          it 'returns the releases ordered by created_at in descending order' do
+            expect(resolve_releases).to eq([release_v1, release_v3, release_v2])
+          end
+        end
+
+        context 'with sort: :created_asc' do
+          let(:args) { { sort: :created_asc } }
+
+          it 'returns the releases ordered by created_at in ascending order' do
+            expect(resolve_releases).to eq([release_v2, release_v3, release_v1])
+          end
+        end
       end
     end
   end
@@ -37,6 +78,6 @@ RSpec.describe Resolvers::ReleasesResolver do
 
   def resolve_releases
     context = { current_user: current_user }
-    resolve(described_class, obj: project, args: {}, ctx: context)
+    resolve(described_class, obj: project, args: args, ctx: context)
   end
 end

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

@@ -300,4 +300,77 @@ RSpec.describe 'Query.project(fullPath).releases()' do
       it_behaves_like 'no access to any release data'
     end
   end
+
+  describe 'sorting behavior' do
+    let_it_be(:today) { Time.now }
+    let_it_be(:yesterday) { today - 1.day }
+    let_it_be(:tomorrow) { today + 1.day }
+
+    let_it_be(:project) { create(:project, :repository, :public) }
+
+    let_it_be(:release_v1) { create(:release, project: project, tag: 'v1', released_at: yesterday, created_at: tomorrow) }
+    let_it_be(:release_v2) { create(:release, project: project, tag: 'v2', released_at: today,     created_at: yesterday) }
+    let_it_be(:release_v3) { create(:release, project: project, tag: 'v3', released_at: tomorrow,  created_at: today) }
+
+    let(:current_user) { developer }
+
+    let(:params) { nil }
+
+    let(:sorted_tags) do
+      graphql_data.dig('project', 'releases', 'nodes').map { |release| release['tagName'] }
+    end
+
+    let(:query) do
+      graphql_query_for(:project, { fullPath: project.full_path },
+        %{
+          releases#{params ? "(#{params})" : ""} {
+            nodes {
+              tagName
+            }
+          }
+        })
+    end
+
+    before do
+      post_query
+    end
+
+    context 'when no sort: parameter is provided' do
+      it 'returns the results with the default sort applied (sort: RELEASED_AT_DESC)' do
+        expect(sorted_tags).to eq(%w(v3 v2 v1))
+      end
+    end
+
+    context 'with sort: RELEASED_AT_DESC' do
+      let(:params) { 'sort: RELEASED_AT_DESC' }
+
+      it 'returns the releases ordered by released_at in descending order' do
+        expect(sorted_tags).to eq(%w(v3 v2 v1))
+      end
+    end
+
+    context 'with sort: RELEASED_AT_ASC' do
+      let(:params) { 'sort: RELEASED_AT_ASC' }
+
+      it 'returns the releases ordered by released_at in ascending order' do
+        expect(sorted_tags).to eq(%w(v1 v2 v3))
+      end
+    end
+
+    context 'with sort: CREATED_DESC' do
+      let(:params) { 'sort: CREATED_DESC' }
+
+      it 'returns the releases ordered by created_at in descending order' do
+        expect(sorted_tags).to eq(%w(v1 v3 v2))
+      end
+    end
+
+    context 'with sort: CREATED_ASC' do
+      let(:params) { 'sort: CREATED_ASC' }
+
+      it 'returns the releases ordered by created_at in ascending order' do
+        expect(sorted_tags).to eq(%w(v2 v3 v1))
+      end
+    end
+  end
 end