Add user to sudo if requested

flavours/user.flavour/install.sh

@@ -13,6 +13,16 @@ else
 	read name
 	export username=$name
 	arch-chroot /mnt useradd -m $name
-	arch-chroot /mnt passwd $name
+    arch-chroot /mnt passwd $name
+    
+    # If group "sudo" exists (=> sudo.flavour was installed), ask if the user should be added
+    if [ $(getent group sudo) ]; then
+        echo -n "~> Do you want to add $name to sudoers? (Y/n) "
+        read answer
+        if [ "$answer" == "y" ] || [ "$answer" == "Y" ]; then
+            usermod -a -G sudo $name
+        fi
+    fi
+
 	amf_return=0
 fi