resource

type ArtifactDestination interface {
	StreamIn(string, io.Reader) error
}

type ArtifactSource interface {
	StreamTo(ArtifactDestination) error
}

type ContainerImage string

type ErrResourceScriptFailed struct {
	Path       string
	Args       []string
	ExitStatus int

	Stderr string
}

type IOConfig struct {
	Stdout io.Writer
	Stderr io.Writer
}

type Resource interface {
	Type() ResourceType

	Get(IOConfig, atc.Source, atc.Params, atc.Version) VersionedSource
	Put(IOConfig, atc.Source, atc.Params, ArtifactSource) VersionedSource

	Check(atc.Source, atc.Version) ([]atc.Version, error)

	Release()
	Destroy() error
}

type ResourceType string

type Session struct {
	ID        worker.Identifier
	Ephemeral bool
}

type Tracker interface {
	Init(Session, ResourceType, atc.Tags) (Resource, error)
}

type VersionedSource interface {
	ifrit.Runner

	Version() atc.Version
	Metadata() []atc.MetadataField

	StreamOut(string) (io.ReadCloser, error)
	StreamIn(string, io.Reader) error
}