supply

type Installer interface {
	InstallDependency(libbuildpack.Dependency, string) error
	InstallOnlyVersion(string, string) error
}

type Manifest interface {
	AllDependencyVersions(string) []string
	DefaultVersion(string) (libbuildpack.Dependency, error)
}

type Stager interface {
	AddBinDependencyLink(string, string) error
	BuildDir() string
	DepDir() string
	DepsIdx() string
	WriteConfigYml(interface{}) error
	WriteEnvFile(string, string) error
	WriteProfileD(string, string) error
}

type Supplier struct {
	Stager     Stager
	Manifest   Manifest
	Installer  Installer
	Log        *libbuildpack.Logger
	VendorTool string
	GoVersion  string
	Godep      godep.Godep
}