containerfs

type Archiver struct {
	SrcDriver Driver
	DstDriver Driver
	Tar       TarFunc
	Untar     UntarFunc
	IDMapping *idtools.IdentityMapping
}

type ContainerFS interface {
	// Path returns the path to the root. Note that this may not exist
	// on the local system, so the continuity operations must be used
	Path() string

	// ResolveScopedPath evaluates the given path scoped to the root.
	// For example, if root=/a, and path=/b/c, then this function would return /a/b/c.
	// If rawPath is true, then the function will not preform any modifications
	// before path resolution. Otherwise, the function will clean the given path
	// by making it an absolute path.
	ResolveScopedPath(path string, rawPath bool) (string, error)

	Driver
}

type Driver interface {
	// OS returns the OS where the rootfs is located. Essentially,
	// runtime.GOOS for everything aside from LCOW, which is "linux"
	OS() string

	// Architecture returns the hardware architecture where the
	// container is located.
	Architecture() string

	// Driver & PathDriver provide methods to manipulate files & paths
	driver.Driver
	pathdriver.PathDriver
}

type TarFunc func(string, *archive.TarOptions) (io.ReadCloser, error)

type UntarFunc func(io.Reader, string, *archive.TarOptions) error