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- // Copyright 2020 The Go Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style
- // license that can be found in the LICENSE file.
- package fs
- // A StatFS is a file system with a Stat method.
- type StatFS interface {
- FS
- // Stat returns a FileInfo describing the file.
- // If there is an error, it should be of type *PathError.
- Stat(name string) (FileInfo, error)
- }
- // Stat returns a FileInfo describing the named file from the file system.
- //
- // If fs implements StatFS, Stat calls fs.Stat.
- // Otherwise, Stat opens the file to stat it.
- func Stat(fsys FS, name string) (FileInfo, error) {
- if fsys, ok := fsys.(StatFS); ok {
- return fsys.Stat(name)
- }
- file, err := fsys.Open(name)
- if err != nil {
- return nil, err
- }
- defer file.Close()
- return file.Stat()
- }
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