fix viper interface

config/viper_config.go

@@ -147,42 +147,42 @@ func (c *Config) fillDefaultValues() {
 
 // GetDuration returns a duration from the inner config
 func (c *Config) GetDuration(s string) time.Duration {
-	return c.GetDuration(s)
+	return c.Viper.GetDuration(s)
 }
 
 // GetString returns a string from the inner config
 func (c *Config) GetString(s string) string {
-	return c.GetString(s)
+	return c.Viper.GetString(s)
 }
 
 // GetInt returns an int from the inner config
 func (c *Config) GetInt(s string) int {
-	return c.GetInt(s)
+	return c.Viper.GetInt(s)
 }
 
 // GetBool returns an boolean from the inner config
 func (c *Config) GetBool(s string) bool {
-	return c.GetBool(s)
+	return c.Viper.GetBool(s)
 }
 
 // GetStringSlice returns a string slice from the inner config
 func (c *Config) GetStringSlice(s string) []string {
-	return c.GetStringSlice(s)
+	return c.Viper.GetStringSlice(s)
 }
 
 // Get returns an interface from the inner config
 func (c *Config) Get(s string) interface{} {
-	return c.Get(s)
+	return c.Viper.Get(s)
 }
 
 // GetStringMapString returns a string map string from the inner config
 func (c *Config) GetStringMapString(s string) map[string]string {
-	return c.GetStringMapString(s)
+	return c.Viper.GetStringMapString(s)
 }
 
 // Unmarshal unmarshals config into v
 func (c *Config) Unmarshal(v interface{}) error {
-	return c.Unmarshal(v)
+	return c.Viper.Unmarshal(v)
 }
 
 // UnmarshalKey unmarshals key into v
@@ -212,7 +212,7 @@ func (c *Config) UnmarshalKey(key string, rawVal interface{}) error {
 		}
 		i = val
 	}
-	return decode(i, defaultDecoderConfig(rawVal, opts...))
+	return decode(i, defaultDecoderConfig(rawVal))
 }
 
 func isStringMapInterface(val interface{}) bool {