Better usability for saving configuration

bin/grandenet

@@ -62,18 +62,33 @@ function configure {
             echo "Mounted external partitions list:"
             for mnt in "${mountpoint}"/* ; do
                 echo "    * $mnt"
+                place_suggestion="$mnt"
             done
         else
             echo "No external device partition mounted on ${mountpoint}."
+            place_suggestion="/usr/local/"
         fi
-        read -e -p "A folder called 're6stconf' will be generated in order to backup the freshly created configuration. Where should it be created (use tabulation for autocompletion)? " place
+        read -e -p "A folder called 're6stconf' will be generated in order to backup the freshly created configuration. Where should it be created [$place_suggestion] (use tabulation for autocompletion)? " place
+        if [ "$place" = "" ] ; then
+            place="$place_suggestion"
+        fi
+
+        if [ -w "$place" ] ; then
             place+="/re6stconf"
+
             echo "configuration will be saved in $place"
 
             install -d "${place}"
             for file in "${configdir}"/* ; do
                 install "${file}" "${place}"
             done
+        else
+            echo
+            echo "#####################################################################################"
+            echo "WARNING: $place is not writable, the configuration won't be save. If you want to save it later, copy the directory ~/.re6stconf yourself."
+            echo "#####################################################################################"
+            echo
+        fi
     else
         echo -e "Configuration will be placed in ${configdir},\e[31m please do a manual backup later or you could lose your access to this network\e[0m."
     fi