+PEERTUBE_PATH=${1:-/var/www/peertube/}
+
+if [ ! -e "$PEERTUBE_PATH" ]; then
+ echo "Error - path \"$PEERTUBE_PATH\" wasn't found"
+ echo ""
+ echo "If peertube was installed in another path, you can specify it with"
+ echo " ./upgrade.sh <PATH>"
+ exit 1
+fi
+
+if [ ! -e "$PEERTUBE_PATH/versions" -o ! -e "$PEERTUBE_PATH/config/production.yaml" ]; then
+ echo "Error - Couldn't find peertube installation in \"$PEERTUBE_PATH\""
+ echo ""
+ echo "If peertube was installed in another path, you can specify it with"
+ echo " ./upgrade.sh <PATH>"
+ exit 1
+fi
+