Add options to srslte_install_configs.sh to install clean configs.

cmake/modules/SRSLTE_install_configs.sh.in

@@ -27,15 +27,42 @@ else
   exit
 fi
 
+if [ "$2" == "--force" ]
+then
+  echo "Force overwrite called. Overwritting any existing configuration files."
+  read -e -p "Is this OK? [y/n]: " choice
+  [[ "$choice" == [Yy]* ]] && force_install="true" || exit
+elif [ "$2" == "--force-no-db" ]
+then
+  echo "Force overwrite called. Overwritting all existing configuration files, except ue_db.csv."
+  read -e -p "Is this OK? [y/n]: " choice
+  if [[ "$choice" == [Yy]* ]] ; then force_install="true" && no_db="true"; else exit; fi
+elif [ "$2" == "" ]
+then
+  : #NOOP
+else
+  echo "Invalid command line option provided."
+  exit 
+fi
+
+
 install_file(){
   source_path="$SRSLTE_INSTALL_DIR/$1"
   dest_path=$(echo "$dest_folder/$1" | sed 's/\.[^.]*$//') # Strip .example from filename
 
   # Check if config file already exists in location
   if [ -f  $dest_path ]; then
+    # If --force option is selected, overwrite file 
+    if [ "$force_install" != "true" ] && [ "$no_db" != "true" ] ; then
+      echo " - $dest_path already exists. Skipping it."
+      return
+    fi
+    # If --force-no-db option is selected, overwrite file unless it ends in ".csv"
+    if [ "$force_install" == "true" ] && [ "$no_db" == "true" ] && [[ $dest_path =~ \.csv$ ]]; then
       echo " - $dest_path already exists. Skipping it."
       return
     fi
+  fi
 
   # Check if config file exists in source location
   if [ -f $source_path ]; then