testing native go plugins

internal/plugin/interface.go

@@ -24,9 +24,13 @@ type Plugin interface {
 var namePlugins = map[string]Plugin{}
 var nameSourceType = map[string]data.SourceType{}
 
-func RegisterPlugin(plugin Plugin) {
+func RegisterPlugin(plugin Plugin) error {
 	name := plugin.Name()
 
+	if _, ok := namePlugins[name]; ok {
+		return errors.New("plugin " + name + " is already registered")
+	}
+
 	nameSourceType[name] = data.SourceType{
 		Name:        name,
 		Regex:       plugin.Regex(),
@@ -36,6 +40,7 @@ func RegisterPlugin(plugin Plugin) {
 	}
 
 	namePlugins[name] = plugin
+	return nil
 }
 
 func compileSourceType(source data.Source) (data.Source, error) {