Adds ability to run root-fs expansion non-interactively by passing the argument --expand-rootfs.

This is very useful if you need to implement an automatic disk space expansion.

.gitignore

@@ -0,0 +1 @@
+*.swp

raspi-config

@@ -3,6 +3,7 @@
 #
 # See LICENSE file for copyright and license details
 
+INTERACTIVE=True
 ASK_TO_REBOOT=0
 
 do_info() {
@@ -65,8 +66,9 @@ esac
 EOF
   chmod +x /etc/init.d/resize2fs_once &&
   update-rc.d resize2fs_once defaults &&
-  whiptail --msgbox "Root partition has been resized.\n\
-The filesystem will be enlarged upon the next reboot" 20 60 2
+  if [ "$INTERACTIVE" = True ]; then
+    whiptail --msgbox "Root partition has been resized.\nThe filesystem will be enlarged upon the next reboot" 20 60 2
+  fi
 }
 
 set_config_var() {
@@ -378,6 +380,12 @@ do
     printf "Not currently supported\n"
     exit 1
     ;;
+  --expand-rootfs)
+    INTERACTIVE=False
+    do_expand_rootfs
+    printf "Please reboot\n"
+    exit 0
+    ;;
   *)
     # unknown option
     ;;