Merge "Remove output_file before generating it" into main

      'We require that all .fsv_meta files follow this convention regardless of if it\'s a link or '

      'not. However {args.input} had a different output file: {args.output}')

  # remove the output file first, as switching between a file and a symlink can be complicated

  try:

    os.remove(output_file)

  except FileNotFoundError:

    pass

  if os.path.islink(args.input):

    target = os.readlink(args.input) + '.fsv_meta'

    os.symlink(target, output_file)