Added more possible config paths

docs/config.md

@@ -17,6 +17,15 @@ first:
     child: true
 ```
 
+## Config file locations
+
+Vikunja will search on various places for a config file:
+
+* Next to the location of the binary
+* In the `service.rootpath` location set in a config (remember you can set config arguments via environment variables)
+* In `/etc/vikunja`
+* In `~/.config/vikunja`
+
 # Default configuration with explanations
 
 This is the same as the `config.yml.sample` file you'll find in the root of vikunja.

pkg/config/config.go

@@ -84,8 +84,9 @@ func init() {
 	viper.AutomaticEnv()
 
 	// Load the config file
-	viper.AddConfigPath(exPath)
 	viper.AddConfigPath(viper.GetString("service.rootpath"))
+	viper.AddConfigPath("/etc/vikunja/")
+	viper.AddConfigPath("~/.config/vikunja")
 	viper.AddConfigPath(".")
 	viper.SetConfigName("config")
 	err = viper.ReadInConfig()