mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-23 13:30:23 +00:00
93 lines
2.9 KiB
Go
93 lines
2.9 KiB
Go
/*
|
|
Copyright 2016 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 homedir
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
"runtime"
|
|
)
|
|
|
|
// HomeDir returns the home directory for the current user.
|
|
// On Windows:
|
|
// 1. the first of %HOME%, %HOMEDRIVE%%HOMEPATH%, %USERPROFILE% containing a `.kube\config` file is returned.
|
|
// 2. if none of those locations contain a `.kube\config` file, the first of %HOME%, %USERPROFILE%, %HOMEDRIVE%%HOMEPATH% that exists and is writeable is returned.
|
|
// 3. if none of those locations are writeable, the first of %HOME%, %USERPROFILE%, %HOMEDRIVE%%HOMEPATH% that exists is returned.
|
|
// 4. if none of those locations exists, the first of %HOME%, %USERPROFILE%, %HOMEDRIVE%%HOMEPATH% that is set is returned.
|
|
func HomeDir() string {
|
|
if runtime.GOOS == "windows" {
|
|
home := os.Getenv("HOME")
|
|
homeDriveHomePath := ""
|
|
if homeDrive, homePath := os.Getenv("HOMEDRIVE"), os.Getenv("HOMEPATH"); len(homeDrive) > 0 && len(homePath) > 0 {
|
|
homeDriveHomePath = homeDrive + homePath
|
|
}
|
|
userProfile := os.Getenv("USERPROFILE")
|
|
|
|
// Return first of %HOME%, %HOMEDRIVE%/%HOMEPATH%, %USERPROFILE% that contains a `.kube\config` file.
|
|
// %HOMEDRIVE%/%HOMEPATH% is preferred over %USERPROFILE% for backwards-compatibility.
|
|
for _, p := range []string{home, homeDriveHomePath, userProfile} {
|
|
if len(p) == 0 {
|
|
continue
|
|
}
|
|
if _, err := os.Stat(filepath.Join(p, ".kube", "config")); err != nil {
|
|
continue
|
|
}
|
|
return p
|
|
}
|
|
|
|
firstSetPath := ""
|
|
firstExistingPath := ""
|
|
|
|
// Prefer %USERPROFILE% over %HOMEDRIVE%/%HOMEPATH% for compatibility with other auth-writing tools
|
|
for _, p := range []string{home, userProfile, homeDriveHomePath} {
|
|
if len(p) == 0 {
|
|
continue
|
|
}
|
|
if len(firstSetPath) == 0 {
|
|
// remember the first path that is set
|
|
firstSetPath = p
|
|
}
|
|
info, err := os.Stat(p)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
if len(firstExistingPath) == 0 {
|
|
// remember the first path that exists
|
|
firstExistingPath = p
|
|
}
|
|
if info.IsDir() && info.Mode().Perm()&(1<<(uint(7))) != 0 {
|
|
// return first path that is writeable
|
|
return p
|
|
}
|
|
}
|
|
|
|
// If none are writeable, return first location that exists
|
|
if len(firstExistingPath) > 0 {
|
|
return firstExistingPath
|
|
}
|
|
|
|
// If none exist, return first location that is set
|
|
if len(firstSetPath) > 0 {
|
|
return firstSetPath
|
|
}
|
|
|
|
// We've got nothing
|
|
return ""
|
|
}
|
|
return os.Getenv("HOME")
|
|
}
|