Checking for non-Markdown files.

    '%/setup.md': True,

}

# Required non-Markdown files.

NON_MARKDOWN_FILES = {

    "AUTHORS",

    "CITATION"

}

# Episode filename pattern.

P_EPISODE_FILENAME = re.compile(r'/_episodes/(\d\d)-[-\w]+.md$')

    args = parse_args()

    args.reporter = Reporter(args)

    check_config(args)

    check_non_markdown_files(args.source_dir, args.reporter)

    docs = read_all_markdown(args, args.source_dir)

    check_fileset(args.source_dir, args.reporter, docs.keys())

    for filename in docs.keys():

    args.reporter.check_field(config_file, 'configuration', config, 'kind', 'lesson')

def check_non_markdown_files(source_dir, reporter):

    """Check presence of non-Markdown files."""

    for filename in NON_MARKDOWN_FILES:

        path = os.path.join(source_dir, filename)

        reporter.check(os.path.exists(path),

                       filename,

                       "File not found")

def read_all_markdown(args, source_dir):

    """Read source files, returning

    {path : {'metadata':yaml, 'metadata_len':N, 'text':text, 'lines':[(i, line, len)], 'doc':doc}}

        self.text = text

        self.lines = lines

        self.doc = doc

        self.layout = None

    def __init__(self, args, filename, metadata, metadata_len, text, lines, doc):

        super(CheckEpisode, self).__init__(args, filename, metadata, metadata_len, text, lines, doc)

    def check_metadata(self):

        super(CheckEpisode, self).check_metadata()

        if self.metadata: