fix "default templates are re-added upon restart"

Mentioned in #161

server/config/config.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"os"
+	"path/filepath"
 	"sync"
 
 	"gopkg.in/yaml.v3"
@@ -20,6 +21,7 @@ type Config struct {
 	Password        string `yaml:"password"`
 	QueueSize       int    `yaml:"queue_size"`
 	SessionFilePath string `yaml:"session_file_path"`
+	path            string
 }
 
 var (
@@ -43,9 +45,17 @@ func (c *Config) LoadFile(filename string) error {
 		return err
 	}
 
+	c.path = filename
+
 	if err := yaml.NewDecoder(fd).Decode(c); err != nil {
 		return err
 	}
 
 	return nil
 }
+
+// Path of the directory containing the config file
+func (c *Config) Dir() string { return filepath.Dir(c.path) }
+
+// Absolute path of the config file
+func (c *Config) Path() string { return c.path }