Add site restart chat command (fix #21)

matrix.go

@@ -131,6 +131,25 @@ func initMatrix() {
 		return text
 	})
 
+	registerChatCommand("restart", "Restart a site.", func(ctx context.Context, evt *event.Event, args []string) string {
+		if len(args) < 2 {
+			return "🔴 Invalid site."
+		}
+		site, found, err := getSite(args[1])
+		if err != nil {
+			return "🔴 Failed to get site " + args[2] + "!"
+		} else if !found {
+			return "🔴 Invalid site."
+		}
+		text := "⚪️ Restarting server..."
+		derr := site.Restart()
+		if derr.code != 0 {
+			derr.SendOverMatrix()
+			return text + "\n🔴 Failed to restart site!"
+		}
+		return text + "\n🟢 Successfully restarted site."
+	})
+
 	go func() {
 		for range time.Tick(time.Second * 6) {
 			log.Printf("Scanning for queued messages...")