From 5daafc00935e7ee1029ba7b292667d364863e6ee Mon Sep 17 00:00:00 2001
From: Levy Ehrstein <levyehrstein@googlemail.com>
Date: Mon, 13 Dec 2021 13:20:38 +0100
Subject: [PATCH] fix: fabric downgrading not working #1192

See #1192 for an in-depth explanation of the problem.

Reported-by: Erik "Coding-Kiwi"
---
 scripts/start-deployFabric | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/start-deployFabric b/scripts/start-deployFabric
index 770b03fba97..b16694b5849 100755
--- a/scripts/start-deployFabric
+++ b/scripts/start-deployFabric
@@ -24,7 +24,7 @@ fi
 
 export SERVER=fabric-server-${VANILLA_VERSION}-${FABRIC_INSTALLER_VERSION}.jar
 
-if [[ ! -e ${SERVER} ]]; then
+if [ ! \( -e ${SERVER} -a -e "server-${VANILLA_VERSION}.jar" \) ]; then
 
   if [[ -z $FABRIC_INSTALLER && -z $FABRIC_INSTALLER_URL ]]; then
     FABRIC_INSTALLER="fabric-installer-${FABRIC_INSTALLER_VERSION}.jar"
@@ -70,8 +70,12 @@ if [[ ! -e ${SERVER} ]]; then
     exit 10
   fi
 
+  mv server.jar "server-${VANILLA_VERSION}.jar"
   mv fabric-server-launch.jar "${SERVER}"
 fi
 
+# Specify which server jar to run
+echo "serverJar=server-${VANILLA_VERSION}.jar" >  fabric-server-launcher.properties
+
 export FAMILY=FABRIC
 exec "${SCRIPTS:-/}start-setupWorld" "$@"