func validateFileName()

in pkg/provider/validate.go [65:85]

• 18 lines of code
• 6 McCabe index (conditional complexity)

func validateFileName(fileName string) error {
	if len(fileName) == 0 {
		return fmt.Errorf("file name must not be empty")
	}
	// is not abs path
	if filepath.IsAbs(fileName) {
		return fmt.Errorf("file name must be a relative path")
	}
	// does not have any element which is ".."
	parts := strings.Split(filepath.ToSlash(fileName), "/")
	for _, item := range parts {
		if item == ".." {
			return fmt.Errorf("file name must not contain '..'")
		}
	}
	// fallback logic if .. is missed in the previous check
	if strings.Contains(fileName, "..") {
		return fmt.Errorf("file name must not contain '..'")
	}
	return nil
}