def parse_covmetrics(covmetrics_file, stats):
    """
    Parse covmetrics report and write content to ``stats``.

    Covmetrics report is a one-line file with three colunmns::

        mean_coverage   mean_coverage*0.2   coverage_uniformity

    """
    with open(covmetrics_file) as handle:
        cov_data = handle.readline().strip().split('\t')
        stats['mean_coverage'] = float(cov_data[0])
        stats['mean_coverage_20'] = float(cov_data[1])
        stats['coverage_uniformity'] = float(cov_data[2]) / 100
