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