Fixed saving the spigot API instead of the actual server file

run_server.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-if [ "$#" -le 1 ]; then
+if [ "$#" -lt 1 ]; then
     echo "Using default spigot version 1.21.10"
     export REV=1.21.10
 else
@@ -8,6 +8,13 @@ else
     export REV="$1"
 fi
 
+if [ "$#" -lt 1 ]; then
+  echo "Saving default "
+  BUILD_DIRECTORY="/build"
+else
+  BUILD_DIRECTORY="$0"
+fi
+
 SCRIPT_DIR=$(dirname "$0")
 
 WORKSPACE=$(pwd)
@@ -19,7 +26,7 @@ docker run --rm -it \
     -p 25565:25565 \
     -e MAVEN_CONFIG=/var/maven/.m2 \
     -e M2_PATH=/var/maven/.m2 \
-    --volume "$SCRIPT_DIR/build:/build" \
+    --volume "$BUILD_DIRECTORY:/build" \
     --volume "$WORKSPACE:/workspace" \
     --volume "$M2_DIRECTORY:/var/maven/.m2" \
     --volume "$SCRIPT_DIR/scripts:/scripts" \