From 6049c95dc989f3c41a66eaae5ff3c2040a0996af Mon Sep 17 00:00:00 2001
From: Gyu-Ho Lee <gyuhox@gmail.com>
Date: Fri, 29 Apr 2016 11:03:20 -0700
Subject: [PATCH] clientv3: auth with rpctypes.Error

---
 clientv3/auth.go | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/clientv3/auth.go b/clientv3/auth.go
index 9370295f2..d72657edc 100644
--- a/clientv3/auth.go
+++ b/clientv3/auth.go
@@ -19,6 +19,7 @@ import (
 	"strings"
 
 	"github.com/coreos/etcd/auth/authpb"
+	"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
 	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc"
@@ -87,37 +88,37 @@ func NewAuth(c *Client) Auth {
 
 func (auth *auth) AuthEnable(ctx context.Context) (*AuthEnableResponse, error) {
 	resp, err := auth.remote.AuthEnable(ctx, &pb.AuthEnableRequest{})
-	return (*AuthEnableResponse)(resp), err
+	return (*AuthEnableResponse)(resp), rpctypes.Error(err)
 }
 
 func (auth *auth) Authenticate(ctx context.Context, name string, password string) (*AuthenticateResponse, error) {
 	resp, err := auth.remote.Authenticate(ctx, &pb.AuthenticateRequest{Name: name, Password: password})
-	return (*AuthenticateResponse)(resp), err
+	return (*AuthenticateResponse)(resp), rpctypes.Error(err)
 }
 
 func (auth *auth) UserAdd(ctx context.Context, name string, password string) (*AuthUserAddResponse, error) {
 	resp, err := auth.remote.UserAdd(ctx, &pb.AuthUserAddRequest{Name: name, Password: password})
-	return (*AuthUserAddResponse)(resp), err
+	return (*AuthUserAddResponse)(resp), rpctypes.Error(err)
 }
 
 func (auth *auth) UserDelete(ctx context.Context, name string) (*AuthUserDeleteResponse, error) {
 	resp, err := auth.remote.UserDelete(ctx, &pb.AuthUserDeleteRequest{Name: name})
-	return (*AuthUserDeleteResponse)(resp), err
+	return (*AuthUserDeleteResponse)(resp), rpctypes.Error(err)
 }
 
 func (auth *auth) UserChangePassword(ctx context.Context, name string, password string) (*AuthUserChangePasswordResponse, error) {
 	resp, err := auth.remote.UserChangePassword(ctx, &pb.AuthUserChangePasswordRequest{Name: name, Password: password})
-	return (*AuthUserChangePasswordResponse)(resp), err
+	return (*AuthUserChangePasswordResponse)(resp), rpctypes.Error(err)
 }
 
 func (auth *auth) UserGrant(ctx context.Context, user string, role string) (*AuthUserGrantResponse, error) {
 	resp, err := auth.remote.UserGrant(ctx, &pb.AuthUserGrantRequest{User: user, Role: role})
-	return (*AuthUserGrantResponse)(resp), err
+	return (*AuthUserGrantResponse)(resp), rpctypes.Error(err)
 }
 
 func (auth *auth) RoleAdd(ctx context.Context, name string) (*AuthRoleAddResponse, error) {
 	resp, err := auth.remote.RoleAdd(ctx, &pb.AuthRoleAddRequest{Name: name})
-	return (*AuthRoleAddResponse)(resp), err
+	return (*AuthRoleAddResponse)(resp), rpctypes.Error(err)
 }
 
 func (auth *auth) RoleGrant(ctx context.Context, name string, key string, permType PermissionType) (*AuthRoleGrantResponse, error) {
@@ -126,7 +127,7 @@ func (auth *auth) RoleGrant(ctx context.Context, name string, key string, permTy
 		PermType: authpb.Permission_Type(permType),
 	}
 	resp, err := auth.remote.RoleGrant(ctx, &pb.AuthRoleGrantRequest{Name: name, Perm: perm})
-	return (*AuthRoleGrantResponse)(resp), err
+	return (*AuthRoleGrantResponse)(resp), rpctypes.Error(err)
 }
 
 func StrToPermissionType(s string) (PermissionType, error) {