fs

type DelimitedReader interface {
	// ReadString returns next part of data up to (and including it)
	// the delimeter byte.
	ReadString(delim byte) (string, error)
	// Close closes the reader.
	Close() error
}

type FileSystem interface {
	// Mount mounts the specified source under the target path.
	// For bind mounts, bind must be true. The bind mounts will
	// happen in the host mount namespace (that of PID 1).
	Mount(source string, target string, fstype string, bind bool) error
	// Unmount unmounts the specified target directory. If detach
	// is true, MNT_DETACH option is used (disconnect the
	// filesystem for the new accesses even if it's busy).
	Unmount(target string, detach bool) error
	// IsPathAnNs verifies if the path is a mountpoint with nsfs filesystem type.
	IsPathAnNs(string) bool
	// ChownForEmulator makes a file or directory owned by the emulator user.
	ChownForEmulator(filePath string, recursive bool) error
	// GetDelimitedReader returns a DelimitedReader for the specified path.
	GetDelimitedReader(path string) (DelimitedReader, error)
	// WriteFile creates a new file with the specified path or truncates
	// the existing one, setting the specified permissions and writing
	// the data to it. Returns an error if any occured
	// during the operation.
	WriteFile(path string, data []byte, perm os.FileMode) error
}