Ensure that key and base url remain unchanged after updates

src/freedombone

@@ -9170,6 +9170,13 @@ function install_search_engine {
 
     # update to a new commit if needed
     set_repo_commit $SEARCH_ENGINE_PATH/searx "Search engine commit" "$SEARCH_ENGINE_COMMIT" $SEARCH_ENGINE_REPO
+    if grep "Search engine key" $COMPLETION_FILE; then
+        if [ -f ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml ]; then
+            SEARCH_ENGINE_SECRET_KEY=$(cat $COMPLETION_FILE | grep "Search engine key" | awk -F ':' '{print $2}')
+            sed -i "s|secret_key.*|secret_key : \"${SEARCH_ENGINE_SECRET_KEY}\"|g" ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
+            sed -i "s|base_url.*|base_url : \"http://${SEARCH_ENGINE_ONION_HOSTNAME}\"|g" ${SEARCH_ENGINE_PATH}/searx/searx/settings.yml
+        fi
+    fi
 
     if grep -Fxq "install_search_engine" $COMPLETION_FILE; then
         return