refactor: Incorporate fastdb support into backup/restore scripts SQUASH

Author: joshuacurtiss

libexec/mdl-restore.sh

@@ -207,15 +207,18 @@ for mname in $mnames; do
    # When done, clean up. Down the stack and remove the temp volume.
    wait $pid_src
    container_tool volume rm -f "$temp_vol_name" > /dev/null
-   wait $pid_data "$pid_db"
+   wait $pid_data
+   [[ -n $pid_db ]] && wait "$pid_db"
    # Update config before destroying the stack so we know the data mount point
    export_env_and_update_config "$mname"
    branchver="$branchver" "$scr_dir/mdl-stop.sh" "$mname" -q
 
    # Remove the local backup files when done, if they specified that option
    if $remove_when_done; then
       echo Removing local backup files...
-      rm -fv "$MDL_BACKUP_DIR/$data_target" "$MDL_BACKUP_DIR/$src_target" "$MDL_BACKUP_DIR/$db_target"
+      rm -fv "$MDL_BACKUP_DIR/$data_target" "$MDL_BACKUP_DIR/$src_target"
+      [[ -n $db_target ]] && rm -fv "$MDL_BACKUP_DIR/$db_target"
+      [[ -n $dbfiles_target ]] && rm -fv "$MDL_BACKUP_DIR/$dbfiles_target"
    fi
 
    echo "Done restoring $ul$mname$rmul from $backup_source_desc backup set with label $ul$label$norm."