}

// Keep consistent with go/build.defaultGOPATH.
func gopath(ctxt build.Context) string {
	if len(ctxt.GOPATH) > 0 {
		return ctxt.GOPATH
	}
	env := "HOME"
	if runtime.GOOS == "windows" {
		env = "USERPROFILE"
	} else if runtime.GOOS == "plan9" {
		env = "home"
	}
	if home := os.Getenv(env); home != "" {
		def := filepath.Join(home, "go")
		if filepath.Clean(def) == filepath.Clean(runtime.GOROOT()) {

	source *source

	p      *profile.Profile
	msrc   plugin.MappingSources
	remote bool
	err    error
}

func homeEnv() string {
	switch runtime.GOOS {
	case "windows":
		return "USERPROFILE"
	case "plan9":
		return "home"
	default:
		return "HOME"
	}
}

// setTmpDir prepares the directory to use to save profiles retrieved

On Windows, the value is a semicolon-separated string.
On Plan 9, the value is a list.

If the environment variable is unset, GOPATH defaults
to a subdirectory named "go" in the user's home directory
($HOME/go on Unix, %USERPROFILE%\go on Windows),
unless that directory holds a Go distribution.
Run "go env GOPATH" to see the current GOPATH.

See https://golang.org/wiki/SettingGOPATH to set a custom GOPATH.

var Default Context = defaultContext()

// Keep consistent with cmd/go/internal/cfg.defaultGOPATH.
func defaultGOPATH() string {
	env := "HOME"
	if runtime.GOOS == "windows" {
		env = "USERPROFILE"
	} else if runtime.GOOS == "plan9" {
		env = "home"
	}
	if home := os.Getenv(env); home != "" {
		def := filepath.Join(home, "go")
		if filepath.Clean(def) == filepath.Clean(runtime.GOROOT()) {

		t.Error(`go install foo/quxx expected error: .*testdata/b/src/foo/quxx`)
	}
}

func homeEnvName() string {
	switch runtime.GOOS {
	case "windows":
		return "USERPROFILE"
	case "plan9":
		return "home"
	default:
		return "HOME"
	}
}

func tempEnvName() string {
	switch runtime.GOOS {
	case "windows":
		return "TMP"
	case "plan9":

### Windows

- On Windows systems, `%USERPROFILE%` is now preferred over `%HOMEDRIVE%\%HOMEPATH%` as the home folder if `%HOMEDRIVE%\%HOMEPATH%` does not contain a `.kube\config` file, and `%USERPROFILE%` exists and is writable. ([#73923](https://github.com/kubernetes/kubernetes/pull/73923), [@liggitt](https://github.com/liggitt))

- Bug fix: Windows Kubelet nodes will now correctly search the default location for Docker credentials (`%USERPROFILE%\.docker\config.json`) when pulling images from a private registry. (https://kubernetes.io/docs/concepts/containers/images/#configuring-nodes-to-authenticate-to-a-private-registry) ([#78528](https://github.com/kubernetes/kubernetes/pull/78528),...

// On Plan 9, the value is a list.
//
// If the environment variable is unset, GOPATH defaults
// to a subdirectory named "go" in the user's home directory
// ($HOME/go on Unix, %USERPROFILE%\go on Windows),
// unless that directory holds a Go distribution.
// Run "go env GOPATH" to see the current GOPATH.
//
// See https://golang.org/wiki/SettingGOPATH to set a custom GOPATH.
//