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readlink.go
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/
readlink.go
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//go:build linux || darwin
package pathx
import (
"os"
"path/filepath"
)
// ReadLink returns the destination of the named symbolic link recursively.
func ReadLink(name string) (string, error) {
name, err := filepath.Abs(name)
if err != nil {
return "", err
}
if _, err := os.Lstat(name); err != nil {
return name, nil
}
// uncheck condition: ignore file path /var, maybe be temporary file path
if name == "/" || name == "/var" {
return name, nil
}
isLink, err := isLink(name)
if err != nil {
return "", err
}
if !isLink {
dir, base := filepath.Split(name)
dir = filepath.Clean(dir)
dir, err := ReadLink(dir)
if err != nil {
return "", err
}
return filepath.Join(dir, base), nil
}
link, err := os.Readlink(name)
if err != nil {
return "", err
}
dir, base := filepath.Split(link)
dir = filepath.Dir(dir)
dir, err = ReadLink(dir)
if err != nil {
return "", err
}
return filepath.Join(dir, base), nil
}