package util

import "os"

// FileExists reports whether there is a regular file at path. A directory, a
// device node or a socket gives false, and so does anything the process is not
// allowed to look at, since from the caller's point of view there is no usable
// file there either way.
//
// Symbolic links are followed, so a link pointing at a regular file gives true
// and a link pointing at nothing gives false.
func FileExists(path string) bool {
	info, err := os.Stat(path)
	if err != nil {
		return false
	}

	return info.Mode().IsRegular()
}

// DirExists reports whether there is a directory at path. As with FileExists,
// anything that cannot be looked at gives false, and symbolic links are
// followed.
func DirExists(path string) bool {
	info, err := os.Stat(path)
	if err != nil {
		return false
	}

	return info.IsDir()
}