update vendor

vendor/github.com/qiniu/x/config.v7/getdir.go

@@ -0,0 +1,41 @@
+package config
+
+import (
+	"errors"
+	"os"
+)
+
+var homeEnvNames = [][]string{
+	{"HOME"},
+	{"HOMEDRIVE", "HOMEPATH"},
+}
+
+var (
+	ErrHomeNotFound = errors.New("$HOME not found")
+)
+
+func getEnv(name []string) (v string) {
+
+	if len(name) == 1 {
+		return os.Getenv(name[0])
+	}
+	for _, k := range name {
+		v += os.Getenv(k)
+	}
+	return
+}
+
+func GetDir(app string) (dir string, err error) {
+
+	for _, name := range homeEnvNames {
+		home := getEnv(name)
+		if home == "" {
+			continue
+		}
+		dir = home + "/." + app
+		err = os.MkdirAll(dir, 0777)
+		return
+	}
+	return "", ErrHomeNotFound
+}
+