asset

type Asset interface {
	// Dependencies returns the assets upon which this asset directly depends.
	Dependencies() []Asset

	// Generate generates this asset given the states of its parent assets.
	Generate(Parents) error

	// Name returns the human-friendly name of the asset.
	Name() string
}

type Content struct {
	Name string // the path on disk for this content.
	Data []byte
}

type File struct {
	// Filename is the name of the file.
	Filename string
	// Data is the contents of the file.
	Data []byte
}

type FileFetcher interface {
	// FetchByName returns the file with the given name.
	FetchByName(string) (*File, error)
	// FetchByPattern returns the files whose name match the given glob.
	FetchByPattern(pattern string) ([]*File, error)
}

type Parents map[reflect.Type]Asset

type State struct {
	Contents []Content
}

type Store interface {
	// Fetch retrieves the state of the given asset, generating it and its
	// dependencies if necessary.
	Fetch(Asset) error

	// Destroy removes the asset from all its internal state and also from
	// disk if possible.
	Destroy(Asset) error
}

type StoreImpl struct {
	// contains filtered or unexported fields
}

type WritableAsset interface {
	Asset

	// Files returns the files to write.
	Files() []*File

	// Load returns the on-disk asset if it exists.
	// The asset object should be changed only when it's loaded successfully.
	Load(FileFetcher) (found bool, err error)
}