From d08bd43ba0a38a772e11957dc44bcdc916f55aef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ken-H=C3=A5vard=20Lieng?= <kk_998@hotmail.com>
Date: Sun, 15 Apr 2018 00:57:11 +0200
Subject: [PATCH] Hot reload server config

---
 commands/dispatch.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/commands/dispatch.go b/commands/dispatch.go
index 5baf1900..d78de678 100644
--- a/commands/dispatch.go
+++ b/commands/dispatch.go
@@ -5,7 +5,9 @@ import (
 	"io/ioutil"
 	"log"
 	"os"
+	"time"
 
+	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 
@@ -39,6 +41,18 @@ var rootCmd = &cobra.Command{
 		viper.SetConfigName("config")
 		viper.AddConfigPath(storage.Path.Root())
 		viper.ReadInConfig()
+
+		viper.WatchConfig()
+
+		prev := time.Now()
+		viper.OnConfigChange(func(e fsnotify.Event) {
+			now := time.Now()
+			// fsnotify sometimes fires twice
+			if now.Sub(prev) > time.Second {
+				log.Println("New config loaded")
+				prev = now
+			}
+		})
 	},
 
 	Run: func(cmd *cobra.Command, args []string) {