pipelines

type Pipeline struct {
	Stages list.List
}

type Resources struct {
	// Pipeline stores the list of stages to be executed.
	Pipeline *Pipeline

	// Cleanup stores the list of stages extecuted after Pipeline.
	Cleanup *Pipeline

	// Reporter stores the messenger client which report the result to the server.
	Reporter messengers.Messenger

	// RepoService is a client of VCS services such as GitHub and reports the result to the service.
	RepoService services.Service
}