internal

type Builder struct {
	Description string        `toml:"description"`
	Buildpacks  []ImageConfig `toml:"buildpacks"`
	Lifecycle   Lifecycle     `toml:"lifecycle"`
	Order       []Order       `toml:"order"`
	Stack       stackConfig   `toml:"stack"`
}

type Buildpack struct {
	ID       string `toml:"id"`
	Version  string `toml:"version"`
	Homepage string `toml:"homepage,omitempty"`
	Optional bool   `toml:"optional,omitempty"`
}

type ImageConfig struct {
	Image   string `toml:"image"`
	Version string `toml:"version"`
}

type ImageReference struct {
	Domain string
	Path   string
	Tag    string
}

type Lifecycle struct {
	Version string `toml:"version"`
}

type Order struct {
	Group []Buildpack `toml:"group"`
}