Export backup key with password

src/freedombone-keydrive

       echo "$gpgkey"
       exit 735282
   fi
+  echo ''
+  echo $'Enter your gpg private key passphrase:'
   gpgprivkey=$(gpg --homedir=/home/$MY_USERNAME/.gnupg --armor --export-secret-key $GPG_ID)
   if [[ "$gpgprivkey" == *"$gpgerrstr"* ]]; then
       echo $'Problem exporting private gpg key'
       exit 629362
   fi
 
+  # Dummy password to get around not being able to create a key without passphrase
+  BACKUP_DUMMY_PASSWORD='backup'
+
   backupgpgkey=$(gpg --homedir=/home/$MY_USERNAME/.gnupg --armor --export $GPG_BACKUP_ID)
   if [[ "$backupgpgkey" == *"$gpgerrstr"* ]]; then
       echo $'Problem exporting public gpg backup key'
       echo "$backupgpgkey"
       exit 735282
   fi
-  backupgpgprivkey=$(gpg --homedir=/home/$MY_USERNAME/.gnupg --armor --export-secret-key $GPG_BACKUP_ID)
+  backupgpgprivkey=$(echo "$BACKUP_DUMMY_PASSWORD" | gpg --batch --passphrase-fd 0 --homedir=/home/$MY_USERNAME/.gnupg --armor --export-secret-key $GPG_BACKUP_ID)
   if [[ "$backupgpgprivkey" == *"$gpgerrstr"* ]]; then
       echo $'Problem exporting private gpg backup key'
       echo "$backupgpgprivkey"