Backup with use-agent

src/freedombone-utils-backup

 
 function backup_directory_to_usb_duplicity {
     create_backups_temp_directory
-    echo "$BACKUP_DUMMY_PASSWORD" | duplicity full --gpg-options "$BACKUP_GPG_OPTIONS" --tempdir $BACKUP_TEMP_DIRECTORY --encrypt-key $MY_BACKUP_KEY_ID --full-if-older-than 4W --exclude-other-filesystems ${1} file://$USB_MOUNT/backup/${2}
+    echo "$BACKUP_DUMMY_PASSWORD" | duplicity full --use-agent --gpg-options "$BACKUP_GPG_OPTIONS" --tempdir $BACKUP_TEMP_DIRECTORY --encrypt-key $MY_BACKUP_KEY_ID --full-if-older-than 4W --exclude-other-filesystems ${1} file://$USB_MOUNT/backup/${2}
     if [ ! "$?" = "0" ]; then
         umount $USB_MOUNT
         rm -rf $USB_MOUNT
 
 function backup_directory_to_friend_duplicity {
     create_backups_temp_directory
-    echo "$BACKUP_DUMMY_PASSWORD" | duplicity full --gpg-options "$BACKUP_GPG_OPTIONS" --tempdir $BACKUP_TEMP_DIRECTORY --ssh-askpass --encrypt-key ${ADMIN_BACKUP_KEY_ID} --full-if-older-than 4W --exclude-other-filesystems ${1} $SERVER_DIRECTORY/backup/${2}
+    echo "$BACKUP_DUMMY_PASSWORD" | duplicity full --use-agent --gpg-options "$BACKUP_GPG_OPTIONS" --tempdir $BACKUP_TEMP_DIRECTORY --ssh-askpass --encrypt-key ${ADMIN_BACKUP_KEY_ID} --full-if-older-than 4W --exclude-other-filesystems ${1} $SERVER_DIRECTORY/backup/${2}
     if [ ! "$?" = "0" ]; then
         if [[ ${1} == "/root/temp"* || ${1} == *"tempbackup" ]]; then
             shred -zu ${1}/*