Use adlist instead of vw_adlist

Signed-off-by: Christian König <ckoenig@posteo.de>

gravity.sh

@@ -85,7 +85,11 @@ generate_gravity_database() {
 
 # Copy data from old to new database file and swap them
 gravity_swap_databases() {
-  local str copyGravity
+  local str copyGravity enabled_adlists
+
+  # Only build an index if there are enabled adlists
+  enabled_adlists="$(sqlite3 "${gravityTEMPfile}" "Select Count(id) from adlist where enabled=1;")"
+  if [[ enabled_adlists -ge 1 ]]; then
     str="Building tree"
     echo -ne "  ${INFO} ${str}..."
 
@@ -98,6 +102,10 @@ gravity_swap_databases() {
         return 1
     fi
     echo -e "${OVER}  ${TICK} ${str}"
+  else
+      str="No enabled adlists. Skipping building tree"
+      echo -ne "  ${INFO} ${str}...\\n"
+  fi
 
   str="Swapping databases"
   echo -ne "  ${INFO} ${str}..."