kubernetes homedir 源码
kubernetes homedir 代码
文件路径：/staging/src/k8s.io/client-go/util/homedir/homedir.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")
}
相关信息
相关文章
kubernetes apiserver_etcd_test 源码
kubernetes apiserver_kms_test 源码
kubernetes append_or_replace_prefixed_line_test 源码
kubernetes audit_policy_test 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦