filesystem

type DefaultFs struct{}

type File interface {
	// for now, the only os.File methods used are those below, add more as necessary
	Name() string
	Write(b []byte) (n int, err error)
	WriteString(s string) (n int, err error)
	Sync() error
	Close() error
	Readdir(n int) ([]os.FileInfo, error)
}

type Filesystem interface {
	// from "os"
	Stat(name string) (os.FileInfo, error)
	Create(name string) (File, error)
	Open(name string) (File, error)
	OpenFile(name string, flag int, perm os.FileMode) (File, error)
	Rename(oldpath, newpath string) error
	MkdirAll(path string, perm os.FileMode) error
	Chtimes(name string, atime time.Time, mtime time.Time) error
	RemoveAll(path string) error
	Remove(name string) error

	// from "io/ioutil"
	ReadFile(filename string) ([]byte, error)
	WriteFile(filename string, data []byte, perm os.FileMode) error
	TempDir(dir, prefix string) (string, error)
	TempFile(dir, prefix string) (File, error)
	ReadDir(dirname string) ([]os.FileInfo, error)
	Walk(root string, walkFn filepath.WalkFunc) error
}