chore(auth): allow use password and key at same time

ref: https://github.com/appleboy/ssh-action/issues/178

Signed-off-by: Bo-Yi.Wu <appleboy.tw@gmail.com>

plugin.go

@@ -17,7 +17,6 @@ var (
 	errMissingHost          = errors.New("Error: missing server host")
 	errMissingPasswordOrKey = errors.New("Error: can't connect without a private SSH key or password")
 	errCommandTimeOut       = errors.New("Error: command timeout")
-	errSetPasswordandKey    = errors.New("can't set password and key at the same time")
 )
 
 type (
@@ -173,10 +172,6 @@ func (p Plugin) Exec() error {
 		return errMissingPasswordOrKey
 	}
 
-	if len(p.Config.Key) != 0 && len(p.Config.Password) != 0 {
-		return errSetPasswordandKey
-	}
-
 	wg := sync.WaitGroup{}
 	wg.Add(len(p.Config.Host))
 	errChannel := make(chan error)

plugin_test.go

@@ -38,23 +38,6 @@ func TestMissingKeyOrPassword(t *testing.T) {
 	assert.Equal(t, errMissingPasswordOrKey, err)
 }
 
-func TestSetPasswordAndKey(t *testing.T) {
-	plugin := Plugin{
-		Config{
-			Host:     []string{"localhost"},
-			Username: "ubuntu",
-			Password: "1234",
-			Key:      "1234",
-		},
-		os.Stdout,
-	}
-
-	err := plugin.Exec()
-
-	assert.NotNil(t, err)
-	assert.Equal(t, errSetPasswordandKey, err)
-}
-
 func TestIncorrectPassword(t *testing.T) {
 	plugin := Plugin{
 		Config: Config{