fsutil

type FileSystem interface {
	// Open opens the named file for reading.
	Open(name string) (fs.File, error)

	// Create creates or truncates the named file.
	Create(name string) (io.WriteCloser, error)

	// ReadFile reads the named file and returns its contents.
	ReadFile(name string) ([]byte, error)

	// WriteFile writes data to the named file, creating it if necessary.
	WriteFile(name string, data []byte, perm os.FileMode) error

	// Stat returns a FileInfo describing the named file.
	Stat(name string) (fs.FileInfo, error)

	// MkdirAll creates a directory and all necessary parents.
	MkdirAll(path string, perm os.FileMode) error

	// Remove removes the named file or empty directory.
	Remove(name string) error

	// RemoveAll removes path and any children it contains.
	RemoveAll(path string) error

	// Exists checks if a file or directory exists.
	Exists(name string) bool
}

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

type OSFileSystem struct{}