1 // Copyright 2011 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
7 func isExist(err error) bool {
8 switch pe := err.(type) {
16 return contains(err.Error(), " exists")
19 func isNotExist(err error) bool {
20 switch pe := err.(type) {
28 return contains(err.Error(), "does not exist")
31 func isPermission(err error) bool {
32 switch pe := err.(type) {
40 return contains(err.Error(), "permission denied")
43 // contains is a local version of strings.Contains. It knows len(sep) > 1.
44 func contains(s, sep string) bool {
47 for i := 0; i+n <= len(s); i++ {
48 if s[i] == c && s[i:i+n] == sep {