mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 08:20:23 +00:00
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package file
|
|
|
|
import (
|
|
"os"
|
|
)
|
|
|
|
// FileExists checks if specified file exists.
|
|
func FileExists(filename string) (bool, error) {
|
|
if _, err := os.Stat(filename); os.IsNotExist(err) {
|
|
return false, nil
|
|
} else if err != nil {
|
|
return false, err
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
// FileOrSymlinkExists checks if specified file or symlink exists.
|
|
func FileOrSymlinkExists(filename string) (bool, error) {
|
|
if _, err := os.Lstat(filename); os.IsNotExist(err) {
|
|
return false, nil
|
|
} else if err != nil {
|
|
return false, err
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
// ReadDirNoStat returns a string of files/directories contained
|
|
// in dirname without calling lstat on them.
|
|
func ReadDirNoStat(dirname string) ([]string, error) {
|
|
if dirname == "" {
|
|
dirname = "."
|
|
}
|
|
|
|
f, err := os.Open(dirname)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer f.Close()
|
|
|
|
return f.Readdirnames(-1)
|
|
}
|