fs

type AttrMapper interface {
	ToContainer(a *FileAttrs) error
	ToHost(a *FileAttrs) error
}

type AttrSet uint

type DerivedAttrs struct {
	Hash     string
	URL      string
	HTTPInfo string
}

type DeviceAttrs struct {
	FileAttrs
	Devmajor int64
	Devminor int64
}

type ExpandingWriter struct {
	Writer
}

type FSOptions struct {
	Rootless   bool
	IdMappings idutils.IdMappings
	FsEval     fseval.FsEval
}

type FileAttrs struct {
	Mode os.FileMode
	idutils.UserIds
	Xattrs map[string]string
	FileTimes
	Size    int64
	Symlink string
}

type FileInfo struct {
	*FileAttrs
	// contains filtered or unexported fields
}

type FileSource interface {
	Source
	Readable
	HashIfAvailable() string
}

type FileTimes struct {
	Atime time.Time
	Mtime time.Time
}

type FsNode interface {
	Name() string
	Path() string
	Empty() bool
	SetSource(src Source)
	Node(path string) (FsNode, error)
	Mkdirs(path string) (FsNode, error)
	Link(path, targetPath string) (FsNode, FsNode, error)
	AddUpper(path string, src Source) (FsNode, error)
	AddLower(path string, src Source) (FsNode, error)
	AddWhiteout(path string) (FsNode, error)
	Remove()
	MockDevices()
	Normalized() (FsNode, error)
	WriteTo(w io.Writer, attrs AttrSet) error
	Write(Writer) error
	Diff(FsNode) (FsNode, error)
	Hash(AttrSet) (digest.Digest, error)
}

type LazySource interface {
	Source
	Expand(dest string, w Writer, written map[Source]string) error
}

type NodeAttrs struct {
	NodeInfo
	DerivedAttrs
}

type NodeInfo struct {
	NodeType NodeType
	FileAttrs
}

type NodeType string

type Readable interface {
	Reader() (io.ReadCloser, error)
}

type Source interface {
	// TODO: a) Replace with CalcDerivedAttrs() and Attrs() returning pointer to all attrs?!
	//          or at least let DerivedAttrs() return only derived attrs without normal attrs
	Attrs() NodeInfo
	DeriveAttrs() (DerivedAttrs, error)
	Write(dest, name string, w Writer, written map[Source]string) error
}

type Writer interface {
	Lazy(path, name string, src LazySource, written map[Source]string) error
	File(path string, src FileSource) (Source, error)
	Link(path, target string) error
	Symlink(path string, attrs FileAttrs) error
	Dir(path, base string, attrs FileAttrs) error
	Mkdir(path string) error
	Fifo(path string, attrs DeviceAttrs) error
	Device(path string, attrs DeviceAttrs) error
	Remove(path string) error
	LowerNode(path, name string, a *NodeAttrs) error
	LowerLink(path, target string, a *NodeAttrs) error
	Parent() error
}