1 files changed, 6 insertions, 26 deletions
diff --git a/vendor/golang.org/x/crypto/acme/autocert/listener.go b/vendor/golang.org/x/crypto/acme/autocert/listener.go
index 9d62f8ced..460133e0c 100644
--- a/vendor/golang.org/x/crypto/acme/autocert/listener.go
+++ b/vendor/golang.org/x/crypto/acme/autocert/listener.go
@@ -10,7 +10,6 @@ import (
 	"net"
 	"os"
 	"path/filepath"
-	"runtime"
 	"time"
 )
 
@@ -124,32 +123,13 @@ func (ln *listener) Close() error {
 	return ln.tcpListener.Close()
 }
 
-func homeDir() string {
-	if runtime.GOOS == "windows" {
-		return os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
-	}
-	if h := os.Getenv("HOME"); h != "" {
-		return h
-	}
-	return "/"
-}
-
 func cacheDir() string {
 	const base = "golang-autocert"
-	switch runtime.GOOS {
-	case "darwin":
-		return filepath.Join(homeDir(), "Library", "Caches", base)
-	case "windows":
-		for _, ev := range []string{"APPDATA", "CSIDL_APPDATA", "TEMP", "TMP"} {
-			if v := os.Getenv(ev); v != "" {
-				return filepath.Join(v, base)
-			}
-		}
-		// Worst case:
-		return filepath.Join(homeDir(), base)
-	}
-	if xdg := os.Getenv("XDG_CACHE_HOME"); xdg != "" {
-		return filepath.Join(xdg, base)
+	cache, err := os.UserCacheDir()
+	if err != nil {
+		// Fall back to the root directory.
+		cache = "/.cache"
 	}
-	return filepath.Join(homeDir(), ".cache", base)
+
+	return filepath.Join(cache, base)
 }