Resolve "Deprecate Gemnasium project service"

app/models/project_services/gemnasium_service.rb

@@ -3,6 +3,7 @@ require "gemnasium/gitlab_service"
 class GemnasiumService < Service
   prop_accessor :token, :api_key
   validates :token, :api_key, presence: true, if: :activated?
+  validate :deprecation_validation
 
   def title
     'Gemnasium'
@@ -27,6 +28,18 @@ class GemnasiumService < Service
     %w(push)
   end
 
+  def deprecated?
+    true
+  end
+
+  def deprecation_message
+    "Gemnasium has been acquired by GitLab in January 2018. Since May 15, 2018, the service provided by Gemnasium is no longer available."
+  end
+
+  def deprecation_validation
+    errors[:base] << deprecation_message
+  end
+
   def execute(data)
     return unless supported_events.include?(data[:object_kind])
 

app/models/service.rb

@@ -253,7 +253,6 @@ class Service < ActiveRecord::Base
       emails_on_push
       external_wiki
       flowdock
-      gemnasium
       hipchat
       irker
       jira

changelogs/unreleased/46354-deprecate_gemnasium_service.yml

+---
+title: Deprecate Gemnasium project service
+merge_request: 18954
+author:
+type: deprecated

db/post_migrate/20180514161336_remove_gemnasium_service.rb

+class RemoveGemnasiumService < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    disable_statement_timeout
+
+    execute("DELETE FROM services WHERE type='GemnasiumService';")
+  end
+
+  def down
+    # noop
+  end
+end

doc/api/services.md

@@ -405,6 +405,13 @@ GET /projects/:id/services/flowdock
 
 Gemnasium monitors your project dependencies and alerts you about updates and security vulnerabilities.
 
+CAUTION: **Warning:**
+Gemnasium service integration has been deprecated in GitLab 11.0. Gemnasium has been
+[acquired by GitLab](https://about.gitlab.com/press/releases/2018-01-30-gemnasium-acquisition.html)
+in January 2018 and since May 15, 2018, the service provided by Gemnasium is no longer available.
+You can [migrate from Gemnasium to GitLab](https://docs.gitlab.com/ee/user/project/import/gemnasium.html)
+to keep monitoring your dependencies.
+
 ### Create/Edit Gemnasium service
 
 Set Gemnasium service for a project.

doc/user/project/integrations/project_services.md

@@ -34,7 +34,7 @@ Click on the service links to see further configuration instructions and details
 | [Emails on push](emails_on_push.md) | Email the commits and diff of each push to a list of recipients |
 | External Wiki | Replaces the link to the internal wiki with a link to an external wiki |
 | Flowdock | Flowdock is a collaboration web app for technical teams |
-| Gemnasium | Gemnasium monitors your project dependencies and alerts you about updates and security vulnerabilities |
+| Gemnasium   _(Has been deprecated in GitLab 11.0)_ | Gemnasium monitors your project dependencies and alerts you about updates and security vulnerabilities |
 | [HipChat](hipchat.md) | Private group chat and IM |
 | [Irker (IRC gateway)](irker.md) | Send IRC messages, on update, to a list of recipients through an Irker gateway |
 | [JIRA](jira.md) | JIRA issue tracker |

spec/lib/gitlab/import_export/project.json

@@ -6760,26 +6760,6 @@
       "wiki_page_events": true
     },
     {
-      "id": 92,
-      "title": "Gemnasium",
-      "project_id": 5,
-      "created_at": "2016-06-14T15:01:51.202Z",
-      "updated_at": "2016-06-14T15:01:51.202Z",
-      "active": false,
-      "properties": {},
-      "template": false,
-      "push_events": true,
-      "issues_events": true,
-      "merge_requests_events": true,
-      "tag_push_events": true,
-      "note_events": true,
-      "job_events": true,
-      "type": "GemnasiumService",
-      "category": "common",
-      "default": false,
-      "wiki_page_events": true
-    },
-    {
       "id": 91,
       "title": "Flowdock",
       "project_id": 5,

spec/models/project_services/gemnasium_service_spec.rb

@@ -26,24 +26,49 @@ describe GemnasiumService do
     end
   end
 
+  describe "deprecated?" do
+    let(:project) { create(:project, :repository) }
+    let(:gemnasium_service) { described_class.new }
+
+    before do
+      allow(gemnasium_service).to receive_messages(
+        project_id: project.id,
+        project: project,
+        service_hook: true,
+        token: 'verySecret',
+        api_key: 'GemnasiumUserApiKey'
+      )
+    end
+
+    it "is true" do
+      expect(gemnasium_service.deprecated?).to be true
+    end
+
+    it "can't create a new service" do
+      expect(gemnasium_service.save).to be false
+      expect(gemnasium_service.errors[:base].first)
+        .to eq('Gemnasium has been acquired by GitLab in January 2018. Since May 15, 2018, the service provided by Gemnasium is no longer available.')
+    end
+  end
+
   describe "Execute" do
     let(:user)    { create(:user) }
     let(:project) { create(:project, :repository) }
+    let(:gemnasium_service) { described_class.new }
+    let(:sample_data) { Gitlab::DataBuilder::Push.build_sample(project, user) }
 
     before do
-      @gemnasium_service = described_class.new
-      allow(@gemnasium_service).to receive_messages(
+      allow(gemnasium_service).to receive_messages(
         project_id: project.id,
         project: project,
         service_hook: true,
         token: 'verySecret',
         api_key: 'GemnasiumUserApiKey'
       )
-      @sample_data = Gitlab::DataBuilder::Push.build_sample(project, user)
     end
     it "calls Gemnasium service" do
       expect(Gemnasium::GitlabService).to receive(:execute).with(an_instance_of(Hash)).once
-      @gemnasium_service.execute(@sample_data)
+      gemnasium_service.execute(sample_data)
     end
   end
 end