Allow updating default description templates for projects via API

doc/api/projects.md

@@ -1005,6 +1005,20 @@ If the project is a fork, and you provide a valid token to authenticate, the
 }
 ```
 
+Users of [GitLab Premium or higher](https://about.gitlab.com/pricing/)
+can also see the `issues_template` and `merge_requests_template` parameters:
+[introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/55718)
+in GitLab 13.10.
+
+```json
+{
+  "id": 3,
+  "issues_template": null,
+  "merge_requests_template": null,
+  ...
+}
+```
+
 ## Get project users
 
 Get the users list of a project.
@@ -1303,6 +1317,8 @@ PUT /projects/:id
 | `visibility`                                                | string         | **{dotted-circle}** No | See [project visibility level](#project-visibility-level). |
 | `wiki_access_level`                                         | string         | **{dotted-circle}** No | One of `disabled`, `private`, or `enabled`. |
 | `wiki_enabled`                                              | boolean        | **{dotted-circle}** No | _(Deprecated)_ Enable wiki for this project. Use `wiki_access_level` instead. |
+| `issues_template` **(PREMIUM)**                             | string         | **{dotted-circle}** No | Default description for Issues. Description is parsed with GitLab Flavored Markdown. |
+| `merge_requests_template` **(PREMIUM)**                     | string         | **{dotted-circle}** No | Default description for Merge Requests. Description is parsed with GitLab Flavored Markdown.  |
 
 ## Fork project
 

ee/changelogs/unreleased/885-api-for-default-description-template-for-issues-and-merge-requests.yml

+---
+title: Add support for updating default description templates for issues and merge
+  requests via API
+merge_request: 55718
+author:
+type: added

ee/lib/ee/api/entities/project.rb

@@ -37,6 +37,8 @@ module EE
           expose :compliance_frameworks do |project, _|
             [project.compliance_framework_setting&.compliance_management_framework&.name].compact
           end
+          expose :issues_template, if: ->(project, _) { project.feature_available?(:issuable_default_templates) }
+          expose :merge_requests_template, if: ->(project, _) { project.feature_available?(:issuable_default_templates) }
         end
       end
     end

ee/lib/ee/api/helpers/projects_helpers.rb

@@ -33,6 +33,8 @@ module EE
             optional :mirror_overwrites_diverged_branches, type: Grape::API::Boolean, desc: 'Pull mirror overwrites diverged branches'
             optional :import_url, type: String, desc: 'URL from which the project is imported'
             optional :fallback_approvals_required, type: Integer, desc: 'Overall approvals required when no rule is present'
+            optional :issues_template, type: String, desc: 'Default description for Issues. Description is parsed with GitLab Flavored Markdown.'
+            optional :merge_requests_template, type: String, desc: 'Default description for Merge Requests. Description is parsed with GitLab Flavored Markdown.'
           end
         end
 
@@ -48,8 +50,10 @@ module EE
             super.concat [
               :approvals_before_merge,
               :external_authorization_classification_label,
+              :fallback_approvals_required,
               :import_url,
-              :fallback_approvals_required
+              :issues_template,
+              :merge_requests_template
             ]
           end
         end

ee/lib/ee/api/projects.rb

@@ -82,6 +82,7 @@ module EE
             super
 
             verify_mirror_attrs!(project, attrs)
+            verify_issuable_default_templates_attrs!(project, attrs)
           end
 
           def verify_mirror_attrs!(project, attrs)
@@ -92,6 +93,13 @@ module EE
             end
           end
 
+          def verify_issuable_default_templates_attrs!(project, attrs)
+            unless project.feature_available?(:issuable_default_templates)
+              attrs.delete(:issues_template)
+              attrs.delete(:merge_requests_template)
+            end
+          end
+
           def check_audit_events_available!(project)
             forbidden! unless project.feature_available?(:audit_events)
           end

ee/spec/requests/api/projects_spec.rb

@@ -93,6 +93,8 @@ RSpec.describe API::Projects do
   end
 
   describe 'GET /projects/:id' do
+    subject { get api("/projects/#{project.id}", user) }
+
     context 'with external authorization' do
       let(:project) do
         create(:project,
@@ -209,8 +211,6 @@ RSpec.describe API::Projects do
     end
 
     context 'project soft-deletion' do
-      subject { get api("/projects/#{project.id}", user) }
-
       let(:project) do
         create(:project, :public, archived: true, marked_for_deletion_at: 1.day.ago, deleting_user: user)
       end
@@ -253,6 +253,34 @@ RSpec.describe API::Projects do
         end
       end
     end
+
+    context 'issuable default templates feature is available' do
+      before do
+        stub_licensed_features(issuable_default_templates: true)
+      end
+
+      it 'returns issuable default templates' do
+        subject
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(json_response).to have_key 'issues_template'
+        expect(json_response).to have_key 'merge_requests_template'
+      end
+    end
+
+    context 'issuable default templates feature not available' do
+      before do
+        stub_licensed_features(issuable_default_templates: false)
+      end
+
+      it 'does not return issuable default templates' do
+        subject
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(json_response).not_to have_key 'issues_template'
+        expect(json_response).not_to have_key 'merge_requests_template'
+      end
+    end
   end
 
   # Assumes the following variables are defined:
@@ -780,6 +808,65 @@ RSpec.describe API::Projects do
 
   describe 'PUT /projects/:id' do
     let(:project) { create(:project, namespace: user.namespace) }
+    let(:project_params) { {} }
+
+    subject { put api("/projects/#{project.id}", user), params: project_params }
+
+    context 'issuable default templates feature is available' do
+      before do
+        stub_licensed_features(issuable_default_templates: true)
+      end
+
+      context 'when updating issues_template' do
+        let(:project_params) { { issues_template: '## New Issue Template' } }
+
+        it 'updates the content' do
+          subject
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(json_response['issues_template']).to eq(project_params[:issues_template])
+        end
+      end
+
+      context 'when updating merge_requests_template' do
+        let(:project_params) { { merge_requests_template: '## New Merge Request Template' } }
+
+        it 'updates the content' do
+          subject
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(json_response['merge_requests_template']).to eq(project_params[:merge_requests_template])
+        end
+      end
+    end
+
+    context 'issuable default templates feature not available' do
+      before do
+        stub_licensed_features(issuable_default_templates: false)
+      end
+
+      context 'when updating issues_template' do
+        let(:project_params) { { issues_template: '## New Issue Template' } }
+
+        it 'does not update the content' do
+          subject
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(json_response).not_to have_key 'issues_template'
+        end
+      end
+
+      context 'when updating merge_requests_template' do
+        let(:project_params) { { merge_requests_template: '## New Merge Request Template' } }
+
+        it 'does not update the content' do
+          subject
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(json_response).not_to have_key 'merge_requests_template'
+        end
+      end
+    end
 
     context 'when updating external classification' do
       before do
@@ -787,8 +874,10 @@ RSpec.describe API::Projects do
         stub_licensed_features(external_authorization_service_api_management: true)
       end
 
+      let(:project_params) { { external_authorization_classification_label: 'new label' } }
+
       it 'updates the classification label' do
-        put(api("/projects/#{project.id}", user), params: { external_authorization_classification_label: 'new label' })
+        subject
 
         expect(response).to have_gitlab_http_status(:ok)
         expect(project.reload.external_authorization_classification_label).to eq('new label')
@@ -797,7 +886,7 @@ RSpec.describe API::Projects do
 
     context 'when updating mirror related attributes' do
       let(:import_url) { generate(:url) }
-      let(:mirror_params) do
+      let(:project_params) do
         {
           mirror: true,
           import_url: import_url,
@@ -813,7 +902,7 @@ RSpec.describe API::Projects do
         end
 
         it 'does not update mirror related attributes' do
-          put(api("/projects/#{project.id}", user), params: mirror_params)
+          subject
 
           expect(response).to have_gitlab_http_status(:ok)
           expect(project.reload.mirror).to be false
@@ -823,12 +912,12 @@ RSpec.describe API::Projects do
           admin = create(:admin)
           unrelated_user = create(:user)
 
-          mirror_params[:mirror_user_id] = unrelated_user.id
+          project_params[:mirror_user_id] = unrelated_user.id
           project.add_maintainer(admin)
 
           expect_any_instance_of(EE::ProjectImportState).to receive(:force_import_job!).once
 
-          put(api("/projects/#{project.id}", admin), params: mirror_params)
+          put(api("/projects/#{project.id}", admin), params: project_params)
 
           expect(response).to have_gitlab_http_status(:ok)
           expect(project.reload).to have_attributes(
@@ -845,7 +934,7 @@ RSpec.describe API::Projects do
       it 'updates mirror related attributes' do
         expect_any_instance_of(EE::ProjectImportState).to receive(:force_import_job!).once
 
-        put(api("/projects/#{project.id}", user), params: mirror_params)
+        subject
 
         expect(response).to have_gitlab_http_status(:ok)
         expect(project.reload).to have_attributes(
@@ -861,7 +950,7 @@ RSpec.describe API::Projects do
       it 'updates project without mirror attributes when the project is unable to set up repository mirroring' do
         stub_licensed_features(repository_mirrors: false)
 
-        put(api("/projects/#{project.id}", user), params: mirror_params)
+        subject
 
         expect(response).to have_gitlab_http_status(:ok)
         expect(project.reload.mirror).to be false
@@ -870,9 +959,9 @@ RSpec.describe API::Projects do
       it 'renders an API error when mirror user is invalid' do
         invalid_mirror_user = create(:user)
         project.add_developer(invalid_mirror_user)
-        mirror_params[:mirror_user_id] = invalid_mirror_user.id
+        project_params[:mirror_user_id] = invalid_mirror_user.id
 
-        put(api("/projects/#{project.id}", user), params: mirror_params)
+        subject
 
         expect(response).to have_gitlab_http_status(:bad_request)
         expect(json_response["message"]["mirror_user_id"].first).to eq("is invalid")
@@ -882,7 +971,7 @@ RSpec.describe API::Projects do
         developer = create(:user)
         project.add_developer(developer)
 
-        put(api("/projects/#{project.id}", developer), params: mirror_params)
+        put(api("/projects/#{project.id}", developer), params: project_params)
 
         expect(response).to have_gitlab_http_status(:forbidden)
       end
@@ -890,10 +979,10 @@ RSpec.describe API::Projects do
 
     describe 'updating approvals_before_merge attribute' do
       context 'when authenticated as project owner' do
-        it 'updates approvals_before_merge' do
-          project_param = { approvals_before_merge: 3 }
+        let(:project_params) { { approvals_before_merge: 3 } }
 
-          put api("/projects/#{project.id}", user), params: project_param
+        it 'updates approvals_before_merge' do
+          subject
 
           expect(response).to have_gitlab_http_status(:ok)
           expect(json_response['approvals_before_merge']).to eq(3)

lib/api/helpers/projects_helpers.rb

@@ -91,6 +91,8 @@ module API
       end
 
       params :optional_update_params_ee do
+        optional :issues_template, type: String, desc: 'Default description for Issues'
+        optional :merge_requests_template, type: String, desc: 'Default description for Merge Requests'
       end
 
       params :optional_update_params do
@@ -128,8 +130,10 @@ module API
           :emails_disabled,
           :forking_access_level,
           :issues_access_level,
+          :issues_template,
           :lfs_enabled,
           :merge_requests_access_level,
+          :merge_requests_template,
           :merge_method,
           :name,
           :only_allow_merge_if_all_discussions_are_resolved,

spec/requests/api/project_attributes.yml

@@ -12,7 +12,6 @@ itself: # project
     - import_source
     - import_type
     - import_url
-    - issues_template
     - jobs_cache_index
     - last_repository_check_at
     - last_repository_check_failed
@@ -24,7 +23,6 @@ itself: # project
     - merge_requests_author_approval
     - merge_requests_disable_committers_approval
     - merge_requests_rebase_enabled
-    - merge_requests_template
     - mirror_last_successful_update_at
     - mirror_last_update_at
     - mirror_overwrites_diverged_branches