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//go:build !go1.21
package fmtdirent
import "io/fs"
// Backport fs.FormatDirEntry from go1.21
// FormatDirEntry returns a formatted version of dir for human readability.
// Implementations of [DirEntry] can call this from a String method.
// The outputs for a directory named subdir and a file named hello.go are:
//
// d subdir/
// - hello.go
func FormatDirEntry(dir fs.DirEntry) string {
name := dir.Name()
b := make([]byte, 0, 5+len(name))
// The Type method does not return any permission bits,
// so strip them from the string.
mode := dir.Type().String()
mode = mode[:len(mode)-9]
b = append(b, mode...)
b = append(b, ' ')
b = append(b, name...)
if dir.IsDir() {
b = append(b, '/')
}
return string(b)
}
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