Switch the gitlab:db:configure task to use tables.any? instead of looking...

Switch the gitlab:db:configure task to use tables.any? instead of looking specifically for the schema_migrations table

CHANGELOG

@@ -3,6 +3,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 v 8.9.0 (unreleased)
   - Redesign navigation for project pages
   - Use gitlab-shell v3.0.0
+  - Add rake task 'gitlab:db:configure' for conditionally seeding or migrating the database
   - Changed the Slack build message to use the singular duration if necessary (Aran Koning)
   - Fix issues filter when ordering by milestone
   - Todos will display target state if issuable target is 'Closed' or 'Merged'
@@ -46,7 +47,6 @@ v 8.8.0
   - Sanitize repo paths in new project error message
   - Bump mail_room to 0.7.0 to fix stuck IDLE connections
   - Remove future dates from contribution calendar graph.
-  - Add rake task 'gitlab:db:configure' for conditionally seeding or migrating the database
   - Support e-mail notifications for comments on project snippets
   - Fix API leak of notes of unauthorized issues, snippets and merge requests
   - Use ActionDispatch Remote IP for Akismet checking

lib/tasks/gitlab/db.rake

@@ -39,7 +39,7 @@ namespace :gitlab do
 
     desc 'Configures the database by running migrate, or by loading the schema and seeding if needed'
     task configure: :environment do
-      if ActiveRecord::Base.connection.table_exists? 'schema_migrations'
+      if ActiveRecord::Base.connection.tables.any?
         Rake::Task['db:migrate'].invoke
       else
         Rake::Task['db:schema:load'].invoke

spec/tasks/gitlab/db_rake_spec.rb

@@ -20,7 +20,7 @@ describe 'gitlab:db namespace rake task' do
 
   describe 'configure' do
     it 'should invoke db:migrate when schema has already been loaded' do
-      allow(ActiveRecord::Base.connection).to receive(:table_exists?).and_return(true)
+      allow(ActiveRecord::Base.connection).to receive(:tables).and_return(['default'])
       expect(Rake::Task['db:migrate']).to receive(:invoke)
       expect(Rake::Task['db:schema:load']).not_to receive(:invoke)
       expect(Rake::Task['db:seed_fu']).not_to receive(:invoke)
@@ -28,7 +28,7 @@ describe 'gitlab:db namespace rake task' do
     end
 
     it 'should invoke db:shema:load and db:seed_fu when schema is not loaded' do
-      allow(ActiveRecord::Base.connection).to receive(:table_exists?).and_return(false)
+      allow(ActiveRecord::Base.connection).to receive(:tables).and_return([])
       expect(Rake::Task['db:schema:load']).to receive(:invoke)
       expect(Rake::Task['db:seed_fu']).to receive(:invoke)
       expect(Rake::Task['db:migrate']).not_to receive(:invoke)
@@ -46,7 +46,7 @@ describe 'gitlab:db namespace rake task' do
     end
 
     it 'should not invoke seed after a failed schema_load' do
-      allow(ActiveRecord::Base.connection).to receive(:table_exists?).and_return(false)
+      allow(ActiveRecord::Base.connection).to receive(:tables).and_return([])
       allow(Rake::Task['db:schema:load']).to receive(:invoke).and_raise(RuntimeError, 'error')
       expect(Rake::Task['db:schema:load']).to receive(:invoke)
       expect(Rake::Task['db:seed_fu']).not_to receive(:invoke)