Simple usb backups which don't use cryptfs

src/freedombone-backup-local

@@ -375,7 +375,12 @@ remove_option="$2"
 if [[ "$backup_device" == "remove" ]]; then
     remove_option=$1
 fi
-if [[ "$backup_device" == "detect" || "$backup_device" == "auto"* ]]; then
+simple_backup=
+if [[ "$backup_device" == "simple" || "$backup_device" == "detect" || "$backup_device" == "auto"* ]]; then
+    if [[ "$backup_device" == "simple" ]]; then
+        # shellcheck disable=SC2034
+        simple_backup=1
+    fi
     backup_device=$(detect_connected_drives)
     if [[ "$backup_device" != 'sd'* ]]; then
         echo $'No backup device was detected'

src/freedombone-restore-local

@@ -967,7 +967,12 @@ function get_restore_app {
 
 backup_device="$1"
 
-if [[ "$backup_device" == "detect" || "$backup_device" == "auto"* ]]; then
+simple_backup=
+if [[ "$backup_device" == "simple" || "$backup_device" == "detect" || "$backup_device" == "auto"* ]]; then
+    if [[ "$backup_device" == "simple" ]]; then
+        # shellcheck disable=SC2034
+        simple_backup=1
+    fi
     backup_device=$(detect_connected_drives)
     if [[ "$backup_device" != 'sd'* ]]; then
         echo $'No backup device was detected'

src/freedombone-utils-backup

@@ -181,8 +181,11 @@ function backup_mount_drive {
     cryptsetup close encrypted_usb
 
     # mount the encrypted backup drive
-    if cryptsetup open --type luks "$USB_DRIVE" encrypted_usb; then
-        USB_DRIVE=/dev/mapper/encrypted_usb
+    # shellcheck disable=SC2154,SC2086
+    if [ ! $simple_backup ]; then
+        if cryptsetup open --type luks "$USB_DRIVE" encrypted_usb; then
+            USB_DRIVE=/dev/mapper/encrypted_usb
+        fi
     fi
     if ! mount "$USB_DRIVE" "$USB_MOUNT"; then
         echo $"There was a problem mounting the USB drive to $USB_MOUNT"