From 205fccf316b012056b542095665183c46638c865 Mon Sep 17 00:00:00 2001
From: shim_ <marvin@localhost.localdomain>
Date: Tue, 9 Aug 2016 18:19:46 +0200
Subject: [PATCH] basic upgrade mechanism

---
 init.sh | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/init.sh b/init.sh
index f256552..d23c289 100755
--- a/init.sh
+++ b/init.sh
@@ -45,12 +45,7 @@ function db_config {
 	fi
 }
 
-SERVER_DIR=/opt/teamspeak3
-RUNSCRIPT=$SERVER_DIR/ts3server_minimal_runscript.sh
-CONF_DIR=$SERVER_DIR
-
-if [ ! -f "$RUNSCRIPT" ] || [ ! -z "$UPGRADE" ]; then
-	echo Starting Initialization
+function upgrade_ts3 {
         URL=http://dl.4players.de/ts/releases/$TS_VERSION/teamspeak3-server_linux_$ARCH-$TS_VERSION.tar.bz2
 	TMPFILE=/tmp/server.tar.bz2
 	wget $URL -O $TMPFILE
@@ -67,14 +62,25 @@ if [ ! -f "$RUNSCRIPT" ] || [ ! -z "$UPGRADE" ]; then
 	mv -u /opt/teamspeak3-server_linux_$ARCH/* /opt/teamspeak3/
 	rm -rf /opt/teamspeak3-server_linux_$ARCH
 	rm -f $TMPFILE
-	main_config
-	db_config
+	echo "$ARCH-$TS_VERSION" -n > /opt/teamspeak3/INSTALLED_VERSION
+}
+
+SERVER_DIR=/opt/teamspeak3
+RUNSCRIPT=$SERVER_DIR/ts3server_minimal_runscript.sh
+CONF_DIR=$SERVER_DIR
+
+if [ ! -f "$RUNSCRIPT" ] || [ ! -z "$UPGRADE" ]; then
+	echo Starting Initialization
+	if [[ ! -f "/opt/teamspeak3/INSTALLED_VERSION" || ( "$(cat /opt/teamspeak3/INSTALLED_VERSION)" != "$ARCH-$TS_VERSION"  &&  ! -z "$UPGRADE") ]]; then
+		if [ ! -f "$RUNSCRIPT" ]; then
+			upgrade_ts3
+			main_config
+			db_config
+		else
+			upgrade_ts3
+		fi
+	fi
  
 fi
-if [ -z "$UPGRADE" ]; then
-	wait_for_mysql
-	$RUNSCRIPT inifile=$CONF_DIR/ts3server.ini
-else
-	echo "Upgrade complete"
-	exit 0
-fi
+wait_for_mysql
+$RUNSCRIPT inifile=$CONF_DIR/ts3server.ini