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