// Copyright 2015 The Vanadium Authors. All rights reserved. | |
// Use of this source code is governed by a BSD-style | |
// license that can be found in the LICENSE file. | |
package main | |
import "syscall" | |
// fileGid returns the group id of the provided filename. | |
// | |
// The returned value is intended for use with the -u flag to 'docker run'. | |
func fileGid(filename string) (uint32, bool) { | |
var res syscall.Stat_t | |
syscall.Stat(filename, &res) | |
return res.Gid, true | |
} |