"""
Appends the codecov token to the 'codecov.yml' file at the root of the repository.

This is done by CI during PRs and builds on the pytest-dev repository so we can upload coverage, at least
until codecov grows some native integration like it has with Travis and AppVeyor.

See discussion in https://github.com/pytest-dev/pytest/pull/6441 for more information.
"""
import os.path
from textwrap import dedent


def main():
    this_dir = os.path.dirname(__file__)
    cov_file = os.path.join(this_dir, "..", "codecov.yml")

    assert os.path.isfile(cov_file), "{cov_file} does not exist".format(
        cov_file=cov_file
    )

    with open(cov_file, "a") as f:
        # token from: https://codecov.io/gh/pytest-dev/pytest/settings
        # use same URL to regenerate it if needed
        text = dedent(
            """
            codecov:
              token: "1eca3b1f-31a2-4fb8-a8c3-138b441b50a7"
        """
        )
        f.write(text)

    print("Token updated:", cov_file)


if __name__ == "__main__":
    main()