+# Backup database
+SQL_BACKUP_PATH="$PEERTUBE_PATH/backup/sql-peertube_prod-$(date +"%Y%m%d-%H%M").bak"
+DB_USER=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['username'])")
+DB_PASS=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['password'])")
+DB_HOST=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['hostname'])")
+DB_SUFFIX=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['suffix'])")
+mkdir -p $PEERTUBE_PATH/backup
+
+PGPASSWORD=$DB_PASS pg_dump -U $DB_USER -h $DB_HOST -F c "peertube${DB_SUFFIX}" -f "$SQL_BACKUP_PATH"
+
+# If there is a pre-release, give the user a choice which one to install.
+RELEASE_VERSION=$(curl -s https://api.github.com/repos/chocobozzz/peertube/releases/latest | grep tag_name | cut -d '"' -f 4)
+PRE_RELEASE_VERSION=$(curl -s https://api.github.com/repos/chocobozzz/peertube/releases | grep tag_name | head -1 | cut -d '"' -f 4)
+
+if [ "$RELEASE_VERSION" != "$PRE_RELEASE_VERSION" ]; then
+ echo -e "Which version do you want to install?\n[1] $RELEASE_VERSION (stable) \n[2] $PRE_RELEASE_VERSION (pre-release)"
+ read choice
+ case $choice in
+ [1]* ) VERSION="$RELEASE_VERSION";;
+ [2]* ) VERSION="$PRE_RELEASE_VERSION";;
+ * ) exit;
+ esac
+else
+ VERSION="$RELEASE_VERSION"