Improved user selection dialog during install

src/freedombone-config

     update-locale LC_CTYPE=${DEFAULT_LANGUAGE}
 }
 
+function select_user {
+    SELECTED_USERNAME=
+
+    users_array=($(ls /home))
+
+    delete=(mirrors git)
+    for del in ${delete[@]}
+    do
+        users_array=(${users_array[@]/$del})
+    done
+
+    i=0
+    W=()
+    name=()
+    for u in ${users_array[@]}
+    do
+        i=$((i+1))
+        W+=($i "$u")
+        name+=("$u")
+    done
+
+    user_index=$(dialog --backtitle $"Freedombone Configuration" --title $"Select User" --menu $"Select one of the following:" 24 40 17 "${W[@]}" 3>&2 2>&1 1>&3)
+
+    if [ $? -eq 0 ]; then
+        SELECTED_USERNAME="${name[$((user_index-1))]}"
+    fi
+}
+
 function interactive_configuration {
     # create a temporary copy of the configuration file
     # which can be used to pre-populate selections
             if [[ $SYSTEM_TYPE == "$VARIANT_MESH" && $DEFAULT_DOMAIN_NAME && -d /home/$DEFAULT_DOMAIN_NAME ]]; then
                 MY_USERNAME=$DEFAULT_DOMAIN_NAME
             else
-                data=$(tempfile 2>/dev/null)
-                trap "rm -f $data" 0 1 2 5 15
-                dialog --title $"Select the user account to install as" \
-                       --backtitle $"Freedombone Configuration" \
-                       --dselect "/home/$(grep 'MY_USERNAME' temp.cfg | awk -F '=' '{print $2}')" 14 40 2> $data
-                sel=$?
-                case $sel in
-                    0) MY_USERNAME=$(cat $data | awk -F '/' '{print $3}');;
-                    1) exit 1;;
-                    255) exit 1;;
-                esac
+                select_user
+                MY_USERNAME=$SELECTED_USERNAME
             fi
         fi
     fi