Abort a rake task when missing db/structure.sql like `db:schema:load` task.

1 files changed, 8 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index 8d0792f750..3e8b79c7a0 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -148,6 +148,14 @@ module ActiveRecord
         class_for_adapter(configuration['adapter']).new(*arguments).structure_load(filename)
       end
 
+      def check_schema_file(filename)
+        unless File.exists?(filename)
+          message = %{#{filename} doesn't exist yet. Run `rake db:migrate` to create it, then try again.}
+          message << %{ If you do not intend to use a database, you should instead alter #{Rails.root}/config/application.rb to limit the frameworks that will be loaded.} if defined?(::Rails)
+          Kernel.abort message
+        end
+      end
+
       def load_seed
         if seed_loader
           seed_loader.load_seed