Add option to disable project export on instance - db changes

db/migrate/20170809161910_add_project_export_enabled_to_application_settings.rb

+class AddProjectExportEnabledToApplicationSettings < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+  disable_ddl_transaction!
+
+  DOWNTIME = false
+
+  def up
+    add_column_with_default(:application_settings, :project_export_enabled, :boolean, default: true)
+  end
+
+  def down
+    remove_column(:application_settings, :project_export_enabled)
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170809142252) do
+ActiveRecord::Schema.define(version: 20170809161910) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -127,6 +127,7 @@ ActiveRecord::Schema.define(version: 20170809142252) do
     t.string "help_page_support_url"
     t.integer "performance_bar_allowed_group_id"
     t.boolean "password_authentication_enabled"
+    t.boolean "project_export_enabled", default: true, null: false
   end
 
   create_table "audit_events", force: :cascade do |t|