[TT-1090] support multiple named configuration + only read default on…

…e when explicitly requested (#1009)

config/types.go

@@ -6,8 +6,8 @@ type SethConfig interface {
 	GetSethConfig() *seth.Config
 }
 
-type NamedConfiguration interface {
-	GetConfigurationName() string
+type NamedConfigurations interface {
+	GetConfigurationNames() []string
 }
 
 type GlobalTestConfig interface {

config/utils.go

@@ -10,28 +10,28 @@ import (
 // it also looks for given configuration name and unmarshals it into the target struct overwriting the root.
 // Target needs to be a struct with exported fields with `toml:"field_name"` tags.
 func BytesToAnyTomlStruct(logger zerolog.Logger, filename, configurationName string, target any, content []byte) error {
-	err := toml.Unmarshal(content, target)
-
-	if err != nil {
-		return errors.Wrapf(err, "error unmarshalling config")
-	}
-
-	logger.Debug().Msgf("Successfully unmarshalled %s config file", filename)
-
 	var someToml map[string]interface{}
-	err = toml.Unmarshal(content, &someToml)
+	err := toml.Unmarshal(content, &someToml)
 	if err != nil {
 		return err
 	}
 
 	if configurationName == "" {
 		logger.Debug().Msgf("No configuration name provided, will read only default configuration.")
 
+		err := toml.Unmarshal(content, target)
+
+		if err != nil {
+			return errors.Wrapf(err, "error unmarshalling config")
+		}
+
+		logger.Debug().Msgf("Successfully unmarshalled %s config file", filename)
+
 		return nil
 	}
 
 	if _, ok := someToml[configurationName]; !ok {
-		logger.Debug().Msgf("Config file %s does not contain configuration named '%s', will read only default configuration.", filename, configurationName)
+		logger.Debug().Msgf("Config file %s does not contain configuration named '%s'. Won't read anything", filename, configurationName)
 		return nil
 	}