Add logger and verbosity flag

"""data_repo_renderer."""

import argparse

import logging

from pathlib import Path

from pkg_resources import get_distribution, DistributionNotFound

import shutil

    """Run renderer."""

    # parse command line args

    parser = argparse.ArgumentParser(description="Data repo renderer")

    parser.add_argument("--verbose", action='store_true',

                        help="Print debugging output.")

    parser.add_argument("--prefix", help=("Custom path to a directory that "

                                          "will contain the rendered repo. "

                                          "Defaults to: './rendered/'"))

    args = parser.parse_args(argvec)

    # extract arguments

    verbose = (args.verbose is True)

    util_src = Path(args.util if args.util is not None else "./util/")

    prefix = Path(args.prefix if args.prefix is not None else "./rendered/")

    yaml_file = Path(args.yaml_file)

    # set up logging

    logger = logging.getLogger("data_repo_renderer")

    if verbose:

        _log_level = logging.DEBUG

    else:

        _log_level = logging.INFO

    logging.basicConfig(

        level=_log_level,

        format='%(asctime)s %(name)-16s: %(levelname)-8s %(message)s')

    # load YAML file

    with yaml_file.open() as stream:

        yaml_dict = yaml.load(stream)