1 files changed, 23 insertions, 0 deletions
diff --git a/lib/tasks/gitlab/openapi.rake b/lib/tasks/gitlab/openapi.rake
new file mode 100644
index 00000000000..fd067a1bf0b
--- /dev/null
+++ b/lib/tasks/gitlab/openapi.rake
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+require 'logger'
+
+if Rails.env.development?
+  require 'grape-swagger/rake/oapi_tasks'
+  GrapeSwagger::Rake::OapiTasks.new('::API::API')
+end
+
+namespace :gitlab do
+  namespace :openapi do
+    task :generate do
+      raise 'This task can only be run in the development environment' unless Rails.env.development?
+
+      ENV['store'] = 'tmp/openapi.json'
+      Rake::Task["oapi:fetch"].invoke(['openapi.json'])
+
+      yaml_content = Gitlab::Json.parse(File.read('tmp/openapi_swagger_doc.json')).to_yaml
+
+      File.write("doc/api/openapi/openapi_v2.yaml", yaml_content)
+    end
+  end
+end